THRIFT-880. javame: JavaME code generator and runtime library
This patch adds a new generator and library that produces code suitable for use in JavaME environments.
Patch: David Engberg
git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@999022 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index 6d0d409..24687dc 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -107,6 +107,9 @@
if THRIFT_GEN_js
thrift_SOURCES += src/generate/t_js_generator.cc
endif
+if THRIFT_GEN_javame
+thrift_SOURCES += src/generate/t_javame_generator.cc
+endif
thrift_CXXFLAGS = -Wall -I$(srcdir)/src
thrift_LDFLAGS = -Wall
diff --git a/compiler/cpp/src/generate/t_javame_generator.cc b/compiler/cpp/src/generate/t_javame_generator.cc
new file mode 100644
index 0000000..1bd720a
--- /dev/null
+++ b/compiler/cpp/src/generate/t_javame_generator.cc
@@ -0,0 +1,3391 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <sstream>
+#include <string>
+#include <fstream>
+#include <iostream>
+#include <vector>
+#include <cctype>
+
+#include <sys/stat.h>
+#include <stdexcept>
+
+#include "platform.h"
+#include "t_oop_generator.h"
+using namespace std;
+
+
+/**
+ * Java code generator.
+ *
+ */
+class t_javame_generator : public t_oop_generator {
+ public:
+ t_javame_generator(
+ t_program* program,
+ const std::map<std::string, std::string>& parsed_options,
+ const std::string& option_string)
+ : t_oop_generator(program)
+ {
+ std::map<std::string, std::string>::const_iterator iter;
+ out_dir_base_ = "gen-javame";
+ }
+
+ /**
+ * Init and close methods
+ */
+
+ void init_generator();
+ void close_generator();
+
+ void generate_consts(std::vector<t_const*> consts);
+
+ /**
+ * Program-level generation functions
+ */
+
+ void generate_typedef (t_typedef* ttypedef);
+ void generate_enum (t_enum* tenum);
+ void generate_struct (t_struct* tstruct);
+ void generate_union (t_struct* tunion);
+ void generate_xception(t_struct* txception);
+ void generate_service (t_service* tservice);
+
+ void print_const_value(std::ofstream& out, std::string name, t_type* type, t_const_value* value, bool in_static, bool defval=false);
+ std::string render_const_value(std::ofstream& out, std::string name, t_type* type, t_const_value* value);
+
+ /**
+ * Service-level generation functions
+ */
+
+ void generate_java_struct(t_struct* tstruct, bool is_exception);
+
+ void generate_java_struct_definition(std::ofstream& out, t_struct* tstruct, bool is_xception=false, bool in_class=false, bool is_result=false);
+ void generate_java_struct_equality(std::ofstream& out, t_struct* tstruct);
+ void generate_java_struct_compare_to(std::ofstream& out, t_struct* tstruct);
+ void generate_java_struct_reader(std::ofstream& out, t_struct* tstruct);
+ void generate_java_validator(std::ofstream& out, t_struct* tstruct);
+ void generate_java_struct_result_writer(std::ofstream& out, t_struct* tstruct);
+ void generate_java_struct_writer(std::ofstream& out, t_struct* tstruct);
+ void generate_java_struct_tostring(std::ofstream& out, t_struct* tstruct);
+ void generate_java_struct_clear(std::ofstream& out, t_struct* tstruct);
+ void generate_field_value_meta_data(std::ofstream& out, t_type* type);
+ std::string get_java_type_string(t_type* type);
+ void generate_reflection_setters(std::ostringstream& out, t_type* type, std::string field_name, std::string cap_name);
+ void generate_reflection_getters(std::ostringstream& out, t_type* type, std::string field_name, std::string cap_name);
+ void generate_generic_field_getters_setters(std::ofstream& out, t_struct* tstruct);
+ void generate_java_bean_boilerplate(std::ofstream& out, t_struct* tstruct);
+
+ void generate_function_helpers(t_function* tfunction);
+ std::string get_cap_name(std::string name);
+ std::string generate_isset_check(t_field* field);
+ std::string generate_isset_check(std::string field);
+ void generate_isset_set(ofstream& out, t_field* field);
+ std::string isset_field_id(t_field* field);
+
+ void generate_primitive_service_interface (t_service* tservice);
+ void generate_service_interface (t_service* tservice);
+ void generate_service_helpers (t_service* tservice);
+ void generate_service_client (t_service* tservice);
+ void generate_service_server (t_service* tservice);
+ void generate_process_function (t_service* tservice, t_function* tfunction);
+
+ void generate_java_union(t_struct* tstruct);
+ void generate_union_constructor(ofstream& out, t_struct* tstruct);
+ void generate_union_getters_and_setters(ofstream& out, t_struct* tstruct);
+ void generate_union_abstract_methods(ofstream& out, t_struct* tstruct);
+ void generate_check_type(ofstream& out, t_struct* tstruct);
+ void generate_read_value(ofstream& out, t_struct* tstruct);
+ void generate_write_value(ofstream& out, t_struct* tstruct);
+ void generate_get_field_desc(ofstream& out, t_struct* tstruct);
+ void generate_get_struct_desc(ofstream& out, t_struct* tstruct);
+ void generate_get_field_name(ofstream& out, t_struct* tstruct);
+
+ void generate_union_comparisons(ofstream& out, t_struct* tstruct);
+ void generate_union_hashcode(ofstream& out, t_struct* tstruct);
+
+ /**
+ * Serialization constructs
+ */
+
+ void generate_deserialize_field (std::ofstream& out,
+ t_field* tfield,
+ std::string prefix="");
+
+ void generate_deserialize_struct (std::ofstream& out,
+ t_struct* tstruct,
+ std::string prefix="");
+
+ void generate_deserialize_container (std::ofstream& out,
+ t_type* ttype,
+ std::string prefix="");
+
+ void generate_deserialize_set_element (std::ofstream& out,
+ t_set* tset,
+ std::string prefix="");
+
+ void generate_deserialize_map_element (std::ofstream& out,
+ t_map* tmap,
+ std::string prefix="");
+
+ void generate_deserialize_list_element (std::ofstream& out,
+ t_list* tlist,
+ std::string prefix="");
+
+ void generate_serialize_field (std::ofstream& out,
+ t_field* tfield,
+ std::string prefix="");
+
+ void generate_serialize_struct (std::ofstream& out,
+ t_struct* tstruct,
+ std::string prefix="");
+
+ void generate_serialize_container (std::ofstream& out,
+ t_type* ttype,
+ std::string prefix="");
+
+ void generate_serialize_map_element (std::ofstream& out,
+ t_map* tmap,
+ std::string iter,
+ std::string map);
+
+ void generate_serialize_set_element (std::ofstream& out,
+ t_set* tmap,
+ std::string iter);
+
+ void generate_serialize_list_element (std::ofstream& out,
+ t_list* tlist,
+ std::string iter);
+
+ void generate_java_doc (std::ofstream& out,
+ t_field* field);
+
+ void generate_java_doc (std::ofstream& out,
+ t_doc* tdoc);
+
+ void generate_java_doc (std::ofstream& out,
+ t_function* tdoc);
+
+ void generate_java_docstring_comment (std::ofstream &out,
+ string contents);
+
+ void generate_deep_copy_container(std::ofstream& out, std::string source_name_p1, std::string source_name_p2, std::string result_name, t_type* type);
+ void generate_deep_copy_non_container(std::ofstream& out, std::string source_name, std::string dest_name, t_type* type);
+
+ bool has_bit_vector(t_struct* tstruct);
+
+ /**
+ * Helper rendering functions
+ */
+
+ std::string java_package();
+ std::string java_type_imports();
+ std::string java_thrift_imports();
+ std::string type_name(t_type* ttype, bool in_container=false, bool in_init=false, bool skip_generic=false);
+ std::string base_type_name(t_base_type* tbase, bool in_container=false);
+ std::string declare_field(t_field* tfield, bool init=false);
+ std::string function_signature(t_function* tfunction, std::string prefix="");
+ std::string argument_list(t_struct* tstruct, bool include_types = true);
+ std::string type_to_enum(t_type* ttype);
+ std::string get_enum_class_name(t_type* type);
+ void generate_struct_desc(ofstream& out, t_struct* tstruct);
+ void generate_field_descs(ofstream& out, t_struct* tstruct);
+ std::string box_type(t_type* type, string value);
+
+ bool type_can_be_null(t_type* ttype) {
+ ttype = get_true_type(ttype);
+
+ return
+ ttype->is_container() ||
+ ttype->is_struct() ||
+ ttype->is_xception() ||
+ ttype->is_string() ||
+ ttype->is_enum();
+ }
+
+ std::string constant_name(std::string name);
+
+ private:
+
+ /**
+ * File streams
+ */
+
+ std::string package_name_;
+ std::ofstream f_service_;
+ std::string package_dir_;
+
+};
+
+
+/**
+ * Prepares for file generation by opening up the necessary file output
+ * streams.
+ *
+ * @param tprogram The program to generate
+ */
+void t_javame_generator::init_generator() {
+ // Make output directory
+ MKDIR(get_out_dir().c_str());
+ package_name_ = program_->get_namespace("java");
+
+ string dir = package_name_;
+ string subdir = get_out_dir();
+ string::size_type loc;
+ while ((loc = dir.find(".")) != string::npos) {
+ subdir = subdir + "/" + dir.substr(0, loc);
+ MKDIR(subdir.c_str());
+ dir = dir.substr(loc+1);
+ }
+ if (dir.size() > 0) {
+ subdir = subdir + "/" + dir;
+ MKDIR(subdir.c_str());
+ }
+
+ package_dir_ = subdir;
+}
+
+/**
+ * Packages the generated file
+ *
+ * @return String of the package, i.e. "package org.apache.thriftdemo;"
+ */
+string t_javame_generator::java_package() {
+ if (!package_name_.empty()) {
+ return string("package ") + package_name_ + ";\n\n";
+ }
+ return "";
+}
+
+/**
+ * Prints standard java imports
+ *
+ * @return List of imports for Java types that are used in here
+ */
+string t_javame_generator::java_type_imports() {
+ return
+ string() +
+ "import java.util.Hashtable;\n" +
+ "import java.util.Vector;\n" +
+ "import java.util.Enumeration;\n\n";
+}
+
+/**
+ * Prints standard java imports
+ *
+ * @return List of imports necessary for thrift
+ */
+string t_javame_generator::java_thrift_imports() {
+ return
+ string() +
+ "import org.apache.thrift.*;\n" +
+ "import org.apache.thrift.meta_data.*;\n" +
+ "import org.apache.thrift.transport.*;\n" +
+ "import org.apache.thrift.protocol.*;\n\n";
+}
+
+/**
+ * Nothing in Java
+ */
+void t_javame_generator::close_generator() {}
+
+/**
+ * Generates a typedef. This is not done in Java, since it does
+ * not support arbitrary name replacements, and it'd be a wacky waste
+ * of overhead to make wrapper classes.
+ *
+ * @param ttypedef The type definition
+ */
+void t_javame_generator::generate_typedef(t_typedef* ttypedef) {}
+
+/**
+ * Enums are a class with a set of static constants.
+ *
+ * @param tenum The enumeration
+ */
+void t_javame_generator::generate_enum(t_enum* tenum) {
+ // Make output file
+ string f_enum_name = package_dir_+"/"+(tenum->get_name())+".java";
+ ofstream f_enum;
+ f_enum.open(f_enum_name.c_str());
+
+ // Comment and package it
+ f_enum <<
+ autogen_comment() <<
+ java_package();
+
+ generate_java_doc(f_enum, tenum);
+ indent(f_enum) <<
+ "public class " << tenum->get_name() << " implements org.apache.thrift.TEnum ";
+ scope_up(f_enum);
+ f_enum << endl;
+
+ vector<t_enum_value*> constants = tenum->get_constants();
+ vector<t_enum_value*>::iterator c_iter;
+ int value = -1;
+ for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
+ if ((*c_iter)->has_value()) {
+ value = (*c_iter)->get_value();
+ } else {
+ ++value;
+ }
+
+ generate_java_doc(f_enum, *c_iter);
+ indent(f_enum) << "public static final " << tenum->get_name() <<
+ " " << (*c_iter)->get_name() << " = new " << tenum->get_name() <<
+ "(" << value << ");" << endl;
+ }
+ f_enum << endl;
+
+ // Field for thriftCode
+ indent(f_enum) << "private final int value;" << endl << endl;
+
+ indent(f_enum) << "private " << tenum->get_name() << "(int value) {" << endl;
+ indent(f_enum) << " this.value = value;" <<endl;
+ indent(f_enum) << "}" << endl << endl;
+
+ indent(f_enum) << "/**" << endl;
+ indent(f_enum) << " * Get the integer value of this enum value, as defined in the Thrift IDL." << endl;
+ indent(f_enum) << " */" << endl;
+ indent(f_enum) << "public int getValue() {" << endl;
+ indent(f_enum) << " return value;" <<endl;
+ indent(f_enum) << "}" << endl << endl;
+
+ indent(f_enum) << "/**" << endl;
+ indent(f_enum) << " * Find a the enum type by its integer value, as defined in the Thrift IDL." << endl;
+ indent(f_enum) << " * @return null if the value is not found." << endl;
+ indent(f_enum) << " */" << endl;
+ indent(f_enum) << "public static "+ tenum->get_name() + " findByValue(int value) { " << endl;
+
+ indent_up();
+
+ indent(f_enum) << "switch (value) {" << endl;
+ indent_up();
+
+ value = -1;
+
+ for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
+ if ((*c_iter)->has_value()) {
+ value = (*c_iter)->get_value();
+ } else {
+ ++value;
+ }
+
+ indent(f_enum) << "case " << value << ":" << endl;
+ indent(f_enum) << " return " << (*c_iter)->get_name() << ";" << endl;
+ }
+
+ indent(f_enum) << "default:" << endl;
+ indent(f_enum) << " return null;" << endl;
+
+ indent_down();
+
+ indent(f_enum) << "}" << endl;
+
+ indent_down();
+
+ indent(f_enum) << "}" << endl;
+
+ scope_down(f_enum);
+
+ f_enum.close();
+}
+
+/**
+ * Generates a class that holds all the constants.
+ */
+void t_javame_generator::generate_consts(std::vector<t_const*> consts) {
+ if (consts.empty()) {
+ return;
+ }
+
+ string f_consts_name = package_dir_+"/Constants.java";
+ ofstream f_consts;
+ f_consts.open(f_consts_name.c_str());
+
+ // Print header
+ f_consts <<
+ autogen_comment() <<
+ java_package() <<
+ java_type_imports();
+
+ f_consts <<
+ "public class Constants {" << endl <<
+ endl;
+ indent_up();
+ vector<t_const*>::iterator c_iter;
+ for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
+ print_const_value(f_consts,
+ (*c_iter)->get_name(),
+ (*c_iter)->get_type(),
+ (*c_iter)->get_value(),
+ false);
+ }
+ indent_down();
+ indent(f_consts) <<
+ "}" << endl;
+ f_consts.close();
+}
+
+
+/**
+ * Prints the value of a constant with the given type. Note that type checking
+ * is NOT performed in this function as it is always run beforehand using the
+ * validate_types method in main.cc
+ */
+void t_javame_generator::print_const_value(std::ofstream& out, string name, t_type* type, t_const_value* value, bool in_static, bool defval) {
+ type = get_true_type(type);
+
+ indent(out);
+ if (!defval) {
+ out <<
+ (in_static ? "" : "public static final ") <<
+ type_name(type) << " ";
+ }
+ if (type->is_base_type()) {
+ string v2 = render_const_value(out, name, type, value);
+ out << name << " = " << v2 << ";" << endl << endl;
+ } else if (type->is_enum()) {
+ out << name << " = " << render_const_value(out, name, type, value) << ";" << endl << endl;
+ } else if (type->is_struct() || type->is_xception()) {
+ const vector<t_field*>& fields = ((t_struct*)type)->get_members();
+ vector<t_field*>::const_iterator f_iter;
+ const map<t_const_value*, t_const_value*>& val = value->get_map();
+ map<t_const_value*, t_const_value*>::const_iterator v_iter;
+ out << name << " = new " << type_name(type, false, true) << "();" << endl;
+ if (!in_static) {
+ indent(out) << "static {" << endl;
+ indent_up();
+ }
+ for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
+ t_type* field_type = NULL;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ if ((*f_iter)->get_name() == v_iter->first->get_string()) {
+ field_type = (*f_iter)->get_type();
+ }
+ }
+ if (field_type == NULL) {
+ throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string();
+ }
+ string val = render_const_value(out, name, field_type, v_iter->second);
+ indent(out) << name << ".";
+ std::string cap_name = get_cap_name(v_iter->first->get_string());
+ out << "set" << cap_name << "(" << val << ");" << endl;
+ }
+ if (!in_static) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ out << endl;
+ } else if (type->is_map()) {
+ out << name << " = new " << type_name(type, false, true) << "();" << endl;
+ if (!in_static) {
+ indent(out) << "static {" << endl;
+ indent_up();
+ }
+ t_type* ktype = ((t_map*)type)->get_key_type();
+ t_type* vtype = ((t_map*)type)->get_val_type();
+ const map<t_const_value*, t_const_value*>& val = value->get_map();
+ map<t_const_value*, t_const_value*>::const_iterator v_iter;
+ for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
+ string key = render_const_value(out, name, ktype, v_iter->first);
+ string val = render_const_value(out, name, vtype, v_iter->second);
+ indent(out) << name << ".put(" << box_type(ktype, key) << ", " <<
+ box_type(vtype, val) << ");" << endl;
+ }
+ if (!in_static) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ out << endl;
+ } else if (type->is_list() || type->is_set()) {
+ out << name << " = new " << type_name(type, false, true) << "();" << endl;
+ if (!in_static) {
+ indent(out) << "static {" << endl;
+ indent_up();
+ }
+ t_type* etype;
+ if (type->is_list()) {
+ etype = ((t_list*)type)->get_elem_type();
+ } else {
+ etype = ((t_set*)type)->get_elem_type();
+ }
+ const vector<t_const_value*>& val = value->get_list();
+ vector<t_const_value*>::const_iterator v_iter;
+ for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
+ string val = render_const_value(out, name, etype, *v_iter);
+ if (type->is_list()) {
+ indent(out) << name << ".addElement(" << box_type(etype, val) << ");" << endl;
+ } else {
+ indent(out) << name << ".put(" <<
+ box_type(etype, val) << ", " <<
+ box_type(etype, val) << ");" << endl;
+ }
+ }
+ if (!in_static) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ out << endl;
+ } else {
+ throw "compiler error: no const of type " + type->get_name();
+ }
+}
+
+string t_javame_generator::render_const_value(ofstream& out, string name, t_type* type, t_const_value* value) {
+ type = get_true_type(type);
+ std::ostringstream render;
+
+ if (type->is_base_type()) {
+ t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
+ switch (tbase) {
+ case t_base_type::TYPE_STRING:
+ render << '"' << get_escaped_string(value) << '"';
+ break;
+ case t_base_type::TYPE_BOOL:
+ render << ((value->get_integer() > 0) ? "true" : "false");
+ break;
+ case t_base_type::TYPE_BYTE:
+ render << "(byte)" << value->get_integer();
+ break;
+ case t_base_type::TYPE_I16:
+ render << "(short)" << value->get_integer();
+ break;
+ case t_base_type::TYPE_I32:
+ render << value->get_integer();
+ break;
+ case t_base_type::TYPE_I64:
+ render << value->get_integer() << "L";
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ if (value->get_type() == t_const_value::CV_INTEGER) {
+ render << "(double)" << value->get_integer();
+ } else {
+ render << value->get_double();
+ }
+ break;
+ default:
+ throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
+ }
+ } else if (type->is_enum()) {
+ render << type_name(type, false, false) << "." << value->get_identifier();
+ } else {
+ string t = tmp("tmp");
+ print_const_value(out, t, type, value, true);
+ render << t;
+ }
+
+ return render.str();
+}
+
+string t_javame_generator::box_type(t_type* type, string value) {
+ if (type->is_base_type()) {
+ switch (((t_base_type*)type)->get_base()) {
+ case t_base_type::TYPE_BOOL:
+ return "new Boolean(" + value + ")";
+ case t_base_type::TYPE_BYTE:
+ return "new Byte(" + value + ")";
+ case t_base_type::TYPE_I16:
+ return "new Short(" + value + ")";
+ case t_base_type::TYPE_I32:
+ return "new Integer(" + value + ")";
+ case t_base_type::TYPE_I64:
+ return "new Long(" + value + ")";
+ case t_base_type::TYPE_DOUBLE:
+ return "new Double(" + value + ")";
+ default:
+ break;
+ }
+ }
+ return value;
+}
+
+/**
+ * Generates a struct definition for a thrift data type. This will be a TBase
+ * implementor.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_struct(t_struct* tstruct) {
+ if (tstruct->is_union()) {
+ generate_java_union(tstruct);
+ } else {
+ generate_java_struct(tstruct, false);
+ }
+}
+
+/**
+ * Exceptions are structs, but they inherit from Exception
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_xception(t_struct* txception) {
+ generate_java_struct(txception, true);
+}
+
+
+/**
+ * Java struct definition.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_struct(t_struct* tstruct,
+ bool is_exception) {
+ // Make output file
+ string f_struct_name = package_dir_+"/"+(tstruct->get_name())+".java";
+ ofstream f_struct;
+ f_struct.open(f_struct_name.c_str());
+
+ f_struct <<
+ autogen_comment() <<
+ java_package() <<
+ java_type_imports() <<
+ java_thrift_imports();
+
+ generate_java_struct_definition(f_struct,
+ tstruct,
+ is_exception);
+ f_struct.close();
+}
+
+/**
+ * Java union definition.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_union(t_struct* tstruct) {
+ // Make output file
+ string f_struct_name = package_dir_+"/"+(tstruct->get_name())+".java";
+ ofstream f_struct;
+ f_struct.open(f_struct_name.c_str());
+
+ f_struct <<
+ autogen_comment() <<
+ java_package() <<
+ java_type_imports() <<
+ java_thrift_imports();
+
+ generate_java_doc(f_struct, tstruct);
+
+ bool is_final = (tstruct->annotations_.find("final") != tstruct->annotations_.end());
+
+ indent(f_struct) <<
+ "public " << (is_final ? "final " : "") << "class " << tstruct->get_name()
+ << " extends TUnion ";
+
+ scope_up(f_struct);
+
+ generate_struct_desc(f_struct, tstruct);
+ generate_field_descs(f_struct, tstruct);
+
+ f_struct << endl;
+
+ generate_union_constructor(f_struct, tstruct);
+
+ f_struct << endl;
+
+ generate_union_abstract_methods(f_struct, tstruct);
+
+ f_struct << endl;
+
+ generate_union_getters_and_setters(f_struct, tstruct);
+
+ f_struct << endl;
+
+ generate_union_comparisons(f_struct, tstruct);
+
+ f_struct << endl;
+
+ generate_union_hashcode(f_struct, tstruct);
+
+ f_struct << endl;
+
+ scope_down(f_struct);
+
+ f_struct.close();
+}
+
+void t_javame_generator::generate_union_constructor(ofstream& out, t_struct* tstruct) {
+ indent(out) << "public " << type_name(tstruct) << "() {" << endl;
+ indent(out) << " super();" << endl;
+ indent(out) << "}" << endl << endl;
+
+ indent(out) << "public " << type_name(tstruct) << "(_Fields setField, Object value) {" << endl;
+ indent(out) << " super(setField, value);" << endl;
+ indent(out) << "}" << endl << endl;
+
+ indent(out) << "public " << type_name(tstruct) << "(" << type_name(tstruct) << " other) {" << endl;
+ indent(out) << " super(other);" << endl;
+ indent(out) << "}" << endl;
+
+ indent(out) << "public " << tstruct->get_name() << " deepCopy() {" << endl;
+ indent(out) << " return new " << tstruct->get_name() << "(this);" << endl;
+ indent(out) << "}" << endl << endl;
+
+ // generate "constructors" for each field
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ indent(out) << "public static " << type_name(tstruct) << " " << (*m_iter)->get_name() << "(" << type_name((*m_iter)->get_type()) << " value) {" << endl;
+ indent(out) << " " << type_name(tstruct) << " x = new " << type_name(tstruct) << "();" << endl;
+ indent(out) << " x.set" << get_cap_name((*m_iter)->get_name()) << "(value);" << endl;
+ indent(out) << " return x;" << endl;
+ indent(out) << "}" << endl << endl;
+ }
+}
+
+void t_javame_generator::generate_union_getters_and_setters(ofstream& out, t_struct* tstruct) {
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ bool first = true;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ if (first) {
+ first = false;
+ } else {
+ out << endl;
+ }
+
+ t_field* field = (*m_iter);
+
+ generate_java_doc(out, field);
+ indent(out) << "public " << type_name(field->get_type()) << " get" << get_cap_name(field->get_name()) << "() {" << endl;
+ indent(out) << " if (getSetField() == _Fields." << constant_name(field->get_name()) << ") {" << endl;
+ indent(out) << " return (" << type_name(field->get_type(), true) << ")getFieldValue();" << endl;
+ indent(out) << " } else {" << endl;
+ indent(out) << " throw new RuntimeException(\"Cannot get field '" << field->get_name()
+ << "' because union is currently set to \" + getFieldDesc(getSetField()).name);" << endl;
+ indent(out) << " }" << endl;
+ indent(out) << "}" << endl;
+
+ out << endl;
+
+ generate_java_doc(out, field);
+ indent(out) << "public void set" << get_cap_name(field->get_name()) << "(" << type_name(field->get_type()) << " value) {" << endl;
+ if (type_can_be_null(field->get_type())) {
+ indent(out) << " if (value == null) throw new NullPointerException();" << endl;
+ }
+ indent(out) << " setField_ = _Fields." << constant_name(field->get_name()) << ";" << endl;
+ indent(out) << " value_ = value;" << endl;
+ indent(out) << "}" << endl;
+ }
+}
+
+void t_javame_generator::generate_union_abstract_methods(ofstream& out, t_struct* tstruct) {
+ generate_check_type(out, tstruct);
+ out << endl;
+ generate_read_value(out, tstruct);
+ out << endl;
+ generate_write_value(out, tstruct);
+ out << endl;
+ generate_get_field_desc(out, tstruct);
+ out << endl;
+ generate_get_struct_desc(out, tstruct);
+ out << endl;
+}
+
+void t_javame_generator::generate_check_type(ofstream& out, t_struct* tstruct) {
+ indent(out) << "protected void checkType(_Fields setField, Object value) throws ClassCastException {" << endl;
+ indent_up();
+
+ indent(out) << "switch (setField) {" << endl;
+ indent_up();
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_field* field = (*m_iter);
+
+ indent(out) << "case " << constant_name(field->get_name()) << ":" << endl;
+ indent(out) << " if (value instanceof " << type_name(field->get_type(), true, false, true) << ") {" << endl;
+ indent(out) << " break;" << endl;
+ indent(out) << " }" << endl;
+ indent(out) << " throw new ClassCastException(\"Was expecting value of type "
+ << type_name(field->get_type(), true, false) << " for field '" << field->get_name()
+ << "', but got \" + value.getClass().getSimpleName());" << endl;
+ // do the real check here
+ }
+
+ indent(out) << "default:" << endl;
+ indent(out) << " throw new IllegalArgumentException(\"Unknown field id \" + setField);" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+}
+
+void t_javame_generator::generate_read_value(ofstream& out, t_struct* tstruct) {
+ indent(out) << "protected Object readValue(TProtocol iprot, TField field) throws TException {" << endl;
+
+ indent_up();
+
+ indent(out) << "_Fields setField = _Fields.findByThriftId(field.id);" << endl;
+ indent(out) << "if (setField != null) {" << endl;
+ indent_up();
+ indent(out) << "switch (setField) {" << endl;
+ indent_up();
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_field* field = (*m_iter);
+
+ indent(out) << "case " << constant_name(field->get_name()) << ":" << endl;
+ indent_up();
+ indent(out) << "if (field.type == " << constant_name(field->get_name()) << "_FIELD_DESC.type) {" << endl;
+ indent_up();
+ indent(out) << type_name(field->get_type(), true, false) << " " << field->get_name() << ";" << endl;
+ generate_deserialize_field(out, field, "");
+ indent(out) << "return " << field->get_name() << ";" << endl;
+ indent_down();
+ indent(out) << "} else {" << endl;
+ indent(out) << " TProtocolUtil.skip(iprot, field.type);" << endl;
+ indent(out) << " return null;" << endl;
+ indent(out) << "}" << endl;
+ indent_down();
+ }
+
+ indent(out) << "default:" << endl;
+ indent(out) << " throw new IllegalStateException(\"setField wasn't null, but didn't match any of the case statements!\");" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ indent_down();
+ indent(out) << "} else {" << endl;
+ indent_up();
+ indent(out) << "TProtocolUtil.skip(iprot, field.type);" << endl;
+ indent(out) << "return null;" << endl;
+ indent_down();
+ indent(out) << "}" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+}
+
+void t_javame_generator::generate_write_value(ofstream& out, t_struct* tstruct) {
+ indent(out) << "protected void writeValue(TProtocol oprot) throws TException {" << endl;
+
+ indent_up();
+
+ indent(out) << "switch (setField_) {" << endl;
+ indent_up();
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_field* field = (*m_iter);
+
+ indent(out) << "case " << constant_name(field->get_name()) << ":" << endl;
+ indent_up();
+ indent(out) << type_name(field->get_type(), true, false) << " " << field->get_name()
+ << " = (" << type_name(field->get_type(), true, false) << ")value_;" << endl;
+ generate_serialize_field(out, field, "");
+ indent(out) << "return;" << endl;
+ indent_down();
+ }
+
+ indent(out) << "default:" << endl;
+ indent(out) << " throw new IllegalStateException(\"Cannot write union with unknown field \" + setField_);" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ indent_down();
+
+
+
+ indent(out) << "}" << endl;
+}
+
+void t_javame_generator::generate_get_field_desc(ofstream& out, t_struct* tstruct) {
+ indent(out) << "protected TField getFieldDesc(_Fields setField) {" << endl;
+ indent_up();
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ indent(out) << "switch (setField) {" << endl;
+ indent_up();
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_field* field = (*m_iter);
+ indent(out) << "case " << constant_name(field->get_name()) << ":" << endl;
+ indent(out) << " return " << constant_name(field->get_name()) << "_FIELD_DESC;" << endl;
+ }
+
+ indent(out) << "default:" << endl;
+ indent(out) << " throw new IllegalArgumentException(\"Unknown field id \" + setField);" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+}
+
+void t_javame_generator::generate_get_struct_desc(ofstream& out, t_struct* tstruct) {
+ indent(out) << "protected TStruct getStructDesc() {" << endl;
+ indent(out) << " return STRUCT_DESC;" << endl;
+ indent(out) << "}" << endl;
+}
+
+void t_javame_generator::generate_union_comparisons(ofstream& out, t_struct* tstruct) {
+ // equality
+ indent(out) << "public boolean equals(Object other) {" << endl;
+ indent(out) << " if (other instanceof " << tstruct->get_name() << ") {" << endl;
+ indent(out) << " return equals((" << tstruct->get_name() << ")other);" << endl;
+ indent(out) << " } else {" << endl;
+ indent(out) << " return false;" << endl;
+ indent(out) << " }" << endl;
+ indent(out) << "}" << endl;
+
+ out << endl;
+
+ indent(out) << "public boolean equals(" << tstruct->get_name() << " other) {" << endl;
+ indent(out) << " return other != null && getSetField() == other.getSetField() && getFieldValue().equals(other.getFieldValue());" << endl;
+ indent(out) << "}" << endl;
+ out << endl;
+
+ indent(out) << "public int compareTo(" << type_name(tstruct) << " other) {" << endl;
+ indent(out) << " int lastComparison = TBaseHelper.compareTo(getSetField(), other.getSetField());" << endl;
+ indent(out) << " if (lastComparison == 0) {" << endl;
+ indent(out) << " return TBaseHelper.compareTo(getFieldValue(), other.getFieldValue());" << endl;
+ indent(out) << " }" << endl;
+ indent(out) << " return lastComparison;" << endl;
+ indent(out) << "}" << endl;
+ out << endl;
+}
+
+void t_javame_generator::generate_union_hashcode(ofstream& out, t_struct* tstruct) {
+ indent(out) << "/**" << endl;
+ indent(out) << " * If you'd like this to perform more respectably, use the hashcode generator option." << endl;
+ indent(out) << " */" << endl;
+ indent(out) << "public int hashCode() {" << endl;
+ indent(out) << " return 0;" << endl;
+ indent(out) << "}" << endl;
+}
+
+/**
+ * Java struct definition. This has various parameters, as it could be
+ * generated standalone or inside another class as a helper. If it
+ * is a helper than it is a static class.
+ *
+ * @param tstruct The struct definition
+ * @param is_exception Is this an exception?
+ * @param in_class If inside a class, needs to be static class
+ * @param is_result If this is a result it needs a different writer
+ */
+void t_javame_generator::generate_java_struct_definition(ofstream &out,
+ t_struct* tstruct,
+ bool is_exception,
+ bool in_class,
+ bool is_result) {
+ generate_java_doc(out, tstruct);
+
+ bool is_final = (tstruct->annotations_.find("final") != tstruct->annotations_.end());
+
+ indent(out) <<
+ "public " << (is_final ? "final " : "") <<
+ (in_class ? "static " : "") << "class " << tstruct->get_name() << " ";
+
+ if (is_exception) {
+ out << "extends Exception ";
+ }
+ out << "implements TBase ";
+
+ scope_up(out);
+
+ generate_struct_desc(out, tstruct);
+
+ // Members are public for -java, private for -javabean
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ out << endl;
+
+ generate_field_descs(out, tstruct);
+
+ out << endl;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ indent(out) << "private ";
+ out << declare_field(*m_iter, false) << endl;
+ }
+
+ // isset data
+ if (members.size() > 0) {
+ out << endl;
+
+ indent(out) << "// isset id assignments" << endl;
+
+ int i = 0;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ if (!type_can_be_null((*m_iter)->get_type())) {
+ indent(out) << "private static final int " << isset_field_id(*m_iter)
+ << " = " << i << ";" << endl;
+ i++;
+ }
+ }
+
+ if (i > 0) {
+ indent(out) << "private boolean[] __isset_vector = new boolean[" << i << "];" << endl;
+ }
+
+ out << endl;
+ }
+
+ bool all_optional_members = true;
+
+ // Default constructor
+ indent(out) <<
+ "public " << tstruct->get_name() << "() {" << endl;
+ indent_up();
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_type* t = get_true_type((*m_iter)->get_type());
+ if ((*m_iter)->get_value() != NULL) {
+ print_const_value(out, "this." + (*m_iter)->get_name(), t, (*m_iter)->get_value(), true, true);
+ }
+ if ((*m_iter)->get_req() != t_field::T_OPTIONAL) {
+ all_optional_members = false;
+ }
+ }
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ if (!members.empty() && !all_optional_members) {
+ // Full constructor for all fields
+ indent(out) <<
+ "public " << tstruct->get_name() << "(" << endl;
+ indent_up();
+ bool first = true;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ if ((*m_iter)->get_req() != t_field::T_OPTIONAL) {
+ if (!first) {
+ out << "," << endl;
+ }
+ first = false;
+ indent(out) << type_name((*m_iter)->get_type()) << " " <<
+ (*m_iter)->get_name();
+ }
+ }
+ out << ")" << endl;
+ indent_down();
+ indent(out) << "{" << endl;
+ indent_up();
+ indent(out) << "this();" << endl;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ if ((*m_iter)->get_req() != t_field::T_OPTIONAL) {
+ indent(out) << "this." << (*m_iter)->get_name() << " = " <<
+ (*m_iter)->get_name() << ";" << endl;
+ generate_isset_set(out, (*m_iter));
+ }
+ }
+ indent_down();
+ indent(out) << "}" << endl << endl;
+ }
+
+ // copy constructor
+ indent(out) << "/**" << endl;
+ indent(out) << " * Performs a deep copy on <i>other</i>." << endl;
+ indent(out) << " */" << endl;
+ indent(out) << "public " << tstruct->get_name() << "(" << tstruct->get_name() << " other) {" << endl;
+ indent_up();
+
+ if (has_bit_vector(tstruct)) {
+ indent(out) << "System.arraycopy(other.__isset_vector, 0, __isset_vector, 0, other.__isset_vector.length);" << endl;
+ }
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_field* field = (*m_iter);
+ std::string field_name = field->get_name();
+ t_type* type = field->get_type();
+ bool can_be_null = type_can_be_null(type);
+
+ if (can_be_null) {
+ indent(out) << "if (other." << generate_isset_check(field) << ") {" << endl;
+ indent_up();
+ }
+
+ if (type->is_container()) {
+ generate_deep_copy_container(out, "other", field_name, "__this__" + field_name, type);
+ indent(out) << "this." << field_name << " = __this__" << field_name << ";" << endl;
+ } else {
+ indent(out) << "this." << field_name << " = ";
+ generate_deep_copy_non_container(out, "other." + field_name, field_name, type);
+ out << ";" << endl;
+ }
+
+ if (can_be_null) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ }
+
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ // clone method, so that you can deep copy an object when you don't know its class.
+ indent(out) << "public " << tstruct->get_name() << " deepCopy() {" << endl;
+ indent(out) << " return new " << tstruct->get_name() << "(this);" << endl;
+ indent(out) << "}" << endl << endl;
+
+ indent(out) << "public " << tstruct->get_name() << " clone() {" << endl;
+ indent(out) << " return new " << tstruct->get_name() << "(this);" << endl;
+ indent(out) << "}" << endl << endl;
+
+ generate_java_struct_clear(out, tstruct);
+
+ generate_java_bean_boilerplate(out, tstruct);
+ generate_generic_field_getters_setters(out, tstruct);
+
+ generate_java_struct_equality(out, tstruct);
+ generate_java_struct_compare_to(out, tstruct);
+
+ generate_java_struct_reader(out, tstruct);
+ if (is_result) {
+ generate_java_struct_result_writer(out, tstruct);
+ } else {
+ generate_java_struct_writer(out, tstruct);
+ }
+ generate_java_struct_tostring(out, tstruct);
+ generate_java_validator(out, tstruct);
+ scope_down(out);
+ out << endl;
+}
+
+/**
+ * Generates equals methods and a hashCode method for a structure.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_struct_equality(ofstream& out,
+ t_struct* tstruct) {
+ out << indent() << "public boolean equals(Object that) {" << endl;
+ indent_up();
+ out <<
+ indent() << "if (that == null)" << endl <<
+ indent() << " return false;" << endl <<
+ indent() << "if (that instanceof " << tstruct->get_name() << ")" << endl <<
+ indent() << " return this.equals((" << tstruct->get_name() << ")that);" << endl <<
+ indent() << "return false;" << endl;
+ scope_down(out);
+ out << endl;
+
+ out <<
+ indent() << "public boolean equals(" << tstruct->get_name() << " that) {" << endl;
+ indent_up();
+ out <<
+ indent() << "if (that == null)" << endl <<
+ indent() << " return false;" << endl;
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ out << endl;
+
+ t_type* t = get_true_type((*m_iter)->get_type());
+ // Most existing Thrift code does not use isset or optional/required,
+ // so we treat "default" fields as required.
+ bool is_optional = (*m_iter)->get_req() == t_field::T_OPTIONAL;
+ bool can_be_null = type_can_be_null(t);
+ string name = (*m_iter)->get_name();
+
+ string this_present = "true";
+ string that_present = "true";
+ string unequal;
+
+ if (is_optional || can_be_null) {
+ this_present += " && this." + generate_isset_check(*m_iter);
+ that_present += " && that." + generate_isset_check(*m_iter);
+ }
+
+ out <<
+ indent() << "boolean this_present_" << name << " = "
+ << this_present << ";" << endl <<
+ indent() << "boolean that_present_" << name << " = "
+ << that_present << ";" << endl <<
+ indent() << "if (" << "this_present_" << name
+ << " || that_present_" << name << ") {" << endl;
+ indent_up();
+ out <<
+ indent() << "if (!(" << "this_present_" << name
+ << " && that_present_" << name << "))" << endl <<
+ indent() << " return false;" << endl;
+
+ if (t->is_base_type() && ((t_base_type*)t)->is_binary()) {
+ unequal = "TBaseHelper.compareTo(this." + name + ", that." +
+ name + ") != 0";
+ } else if (can_be_null) {
+ unequal = "!this." + name + ".equals(that." + name + ")";
+ } else {
+ unequal = "this." + name + " != that." + name;
+ }
+
+ out <<
+ indent() << "if (" << unequal << ")" << endl <<
+ indent() << " return false;" << endl;
+
+ scope_down(out);
+ }
+ out << endl;
+ indent(out) << "return true;" << endl;
+ scope_down(out);
+ out << endl;
+
+ out << indent() << "public int hashCode() {" << endl;
+ indent_up();
+ indent(out) << "return 0;" << endl;
+ indent_down();
+ indent(out) << "}" << endl << endl;
+}
+
+void t_javame_generator::generate_java_struct_compare_to(ofstream& out, t_struct* tstruct) {
+ indent(out) << "public int compareTo(Object otherObject) {" << endl;
+ // indent(out) << "public int compareTo(" << type_name(tstruct) << " other) {" << endl;
+ indent_up();
+
+ indent(out) << "if (!getClass().equals(otherObject.getClass())) {" << endl;
+ indent(out) << " return getClass().getName().compareTo(otherObject.getClass().getName());" << endl;
+ indent(out) << "}" << endl;
+ out << endl;
+ indent(out) << type_name(tstruct) << " other = (" << type_name(tstruct) << ")otherObject;";
+
+ indent(out) << "int lastComparison = 0;" << endl;
+ out << endl;
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_field* field = *m_iter;
+ indent(out) << "lastComparison = TBaseHelper.compareTo(" << generate_isset_check(field) << ", other." << generate_isset_check(field) << ");" << endl;
+ indent(out) << "if (lastComparison != 0) {" << endl;
+ indent(out) << " return lastComparison;" << endl;
+ indent(out) << "}" << endl;
+
+ indent(out) << "if (" << generate_isset_check(field) << ") {" << endl;
+ if (field->get_type()->is_struct() || field->get_type()->is_xception()) {
+ indent(out) << " lastComparison = this." << field->get_name() << ".compareTo(other." << field->get_name() << ");" << endl;
+ } else {
+ indent(out) << " lastComparison = TBaseHelper.compareTo(this." << field->get_name() << ", other." << field->get_name() << ");" << endl;
+ }
+
+ indent(out) << " if (lastComparison != 0) {" << endl;
+ indent(out) << " return lastComparison;" << endl;
+ indent(out) << " }" << endl;
+ indent(out) << "}" << endl;
+ }
+
+ indent(out) << "return 0;" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl << endl;
+}
+
+/**
+ * Generates a function to read all the fields of the struct.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_struct_reader(ofstream& out,
+ t_struct* tstruct) {
+ out <<
+ indent() << "public void read(TProtocol iprot) throws TException {" << endl;
+ indent_up();
+
+ const vector<t_field*>& fields = tstruct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+
+ // Declare stack tmp variables and read struct header
+ out <<
+ indent() << "TField field;" << endl <<
+ indent() << "iprot.readStructBegin();" << endl;
+
+ // Loop over reading in fields
+ indent(out) <<
+ "while (true)" << endl;
+ scope_up(out);
+
+ // Read beginning field marker
+ indent(out) <<
+ "field = iprot.readFieldBegin();" << endl;
+
+ // Check for field STOP marker and break
+ indent(out) <<
+ "if (field.type == TType.STOP) { " << endl;
+ indent_up();
+ indent(out) <<
+ "break;" << endl;
+ indent_down();
+ indent(out) <<
+ "}" << endl;
+
+ // Switch statement on the field we are reading
+ indent(out) << "switch (field.id) {" << endl;
+
+ indent_up();
+
+ // Generate deserialization code for known cases
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ indent(out) <<
+ "case " << (*f_iter)->get_key() << ": // " << constant_name((*f_iter)->get_name()) << endl;
+ indent_up();
+ indent(out) <<
+ "if (field.type == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl;
+ indent_up();
+
+ generate_deserialize_field(out, *f_iter, "this.");
+ generate_isset_set(out, *f_iter);
+ indent_down();
+ out <<
+ indent() << "} else { " << endl <<
+ indent() << " TProtocolUtil.skip(iprot, field.type);" << endl <<
+ indent() << "}" << endl <<
+ indent() << "break;" << endl;
+ indent_down();
+ }
+
+ indent(out) << "default:" << endl;
+ indent(out) << " TProtocolUtil.skip(iprot, field.type);" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ // Read field end marker
+ indent(out) <<
+ "iprot.readFieldEnd();" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ out <<
+ indent() << "iprot.readStructEnd();" << endl;
+
+ // performs various checks (e.g. check that all required fields are set)
+ indent(out) << "validate();" << endl;
+
+ indent_down();
+ out <<
+ indent() << "}" << endl <<
+ endl;
+}
+
+// generates java method to perform various checks
+// (e.g. check that all required fields are set)
+void t_javame_generator::generate_java_validator(ofstream& out,
+ t_struct* tstruct){
+ indent(out) << "public void validate() throws TException {" << endl;
+ indent_up();
+
+ const vector<t_field*>& fields = tstruct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+
+ out << indent() << "// check for required fields" << endl;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ if ((*f_iter)->get_req() == t_field::T_REQUIRED) {
+ out <<
+ indent() << "if (!" << generate_isset_check(*f_iter) << ") {" << endl <<
+ indent() << " throw new TProtocolException(\"Required field '" << (*f_iter)->get_name() << "' is unset! Struct:\" + toString());" << endl <<
+ indent() << "}" << endl << endl;
+ }
+ }
+
+ indent_down();
+ indent(out) << "}" << endl << endl;
+}
+
+/**
+ * Generates a function to write all the fields of the struct
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_struct_writer(ofstream& out,
+ t_struct* tstruct) {
+ out <<
+ indent() << "public void write(TProtocol oprot) throws TException {" << endl;
+ indent_up();
+
+ string name = tstruct->get_name();
+ const vector<t_field*>& fields = tstruct->get_sorted_members();
+ vector<t_field*>::const_iterator f_iter;
+
+ // performs various checks (e.g. check that all required fields are set)
+ indent(out) << "validate();" << endl << endl;
+
+ indent(out) << "oprot.writeStructBegin(STRUCT_DESC);" << endl;
+
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ bool null_allowed = type_can_be_null((*f_iter)->get_type());
+ if (null_allowed) {
+ out <<
+ indent() << "if (this." << (*f_iter)->get_name() << " != null) {" << endl;
+ indent_up();
+ }
+ bool optional = (*f_iter)->get_req() == t_field::T_OPTIONAL;
+ if (optional) {
+ indent(out) << "if (" << generate_isset_check((*f_iter)) << ") {" << endl;
+ indent_up();
+ }
+
+ indent(out) << "oprot.writeFieldBegin(" << constant_name((*f_iter)->get_name()) << "_FIELD_DESC);" << endl;
+
+ // Write field contents
+ generate_serialize_field(out, *f_iter, "this.");
+
+ // Write field closer
+ indent(out) <<
+ "oprot.writeFieldEnd();" << endl;
+
+ if (optional) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ if (null_allowed) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ }
+ // Write the struct map
+ out <<
+ indent() << "oprot.writeFieldStop();" << endl <<
+ indent() << "oprot.writeStructEnd();" << endl;
+
+ indent_down();
+ out <<
+ indent() << "}" << endl <<
+ endl;
+}
+
+/**
+ * Generates a function to write all the fields of the struct,
+ * which is a function result. These fields are only written
+ * if they are set in the Isset array, and only one of them
+ * can be set at a time.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_struct_result_writer(ofstream& out,
+ t_struct* tstruct) {
+ out <<
+ indent() << "public void write(TProtocol oprot) throws TException {" << endl;
+ indent_up();
+
+ string name = tstruct->get_name();
+ const vector<t_field*>& fields = tstruct->get_sorted_members();
+ vector<t_field*>::const_iterator f_iter;
+
+ indent(out) << "oprot.writeStructBegin(STRUCT_DESC);" << endl;
+
+ bool first = true;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ if (first) {
+ first = false;
+ out <<
+ endl <<
+ indent() << "if ";
+ } else {
+ out << " else if ";
+ }
+
+ out << "(this." << generate_isset_check(*f_iter) << ") {" << endl;
+
+ indent_up();
+
+ indent(out) << "oprot.writeFieldBegin(" << constant_name((*f_iter)->get_name()) << "_FIELD_DESC);" << endl;
+
+ // Write field contents
+ generate_serialize_field(out, *f_iter, "this.");
+
+ // Write field closer
+ indent(out) <<
+ "oprot.writeFieldEnd();" << endl;
+
+ indent_down();
+ indent(out) << "}";
+ }
+ // Write the struct map
+ out <<
+ endl <<
+ indent() << "oprot.writeFieldStop();" << endl <<
+ indent() << "oprot.writeStructEnd();" << endl;
+
+ indent_down();
+ out <<
+ indent() << "}" << endl <<
+ endl;
+}
+
+void t_javame_generator::generate_reflection_getters(ostringstream& out, t_type* type, string field_name, string cap_name) {
+ indent(out) << "case " << constant_name(field_name) << ":" << endl;
+ indent_up();
+
+ if (type->is_base_type() && !type->is_string()) {
+ t_base_type* base_type = (t_base_type*)type;
+
+ indent(out) << "return new " << type_name(type, true, false) << "(" << (base_type->is_bool() ? "is" : "get") << cap_name << "());" << endl << endl;
+ } else {
+ indent(out) << "return get" << cap_name << "();" << endl << endl;
+ }
+
+ indent_down();
+}
+
+void t_javame_generator::generate_reflection_setters(ostringstream& out, t_type* type, string field_name, string cap_name) {
+ indent(out) << "case " << constant_name(field_name) << ":" << endl;
+ indent_up();
+ indent(out) << "if (value == null) {" << endl;
+ indent(out) << " unset" << get_cap_name(field_name) << "();" << endl;
+ indent(out) << "} else {" << endl;
+ indent(out) << " set" << cap_name << "((" << type_name(type, true, false) << ")value);" << endl;
+ indent(out) << "}" << endl;
+ indent(out) << "break;" << endl << endl;
+
+ indent_down();
+}
+
+void t_javame_generator::generate_generic_field_getters_setters(std::ofstream& out, t_struct* tstruct) {
+
+ std::ostringstream getter_stream;
+ std::ostringstream setter_stream;
+
+ // build up the bodies of both the getter and setter at once
+ const vector<t_field*>& fields = tstruct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ t_field* field = *f_iter;
+ t_type* type = get_true_type(field->get_type());
+ std::string field_name = field->get_name();
+ std::string cap_name = get_cap_name(field_name);
+
+ indent_up();
+ generate_reflection_setters(setter_stream, type, field_name, cap_name);
+ generate_reflection_getters(getter_stream, type, field_name, cap_name);
+ indent_down();
+ }
+
+}
+
+/**
+ * Generates a set of Java Bean boilerplate functions (setters, getters, etc.)
+ * for the given struct.
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_bean_boilerplate(ofstream& out,
+ t_struct* tstruct) {
+ const vector<t_field*>& fields = tstruct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ t_field* field = *f_iter;
+ t_type* type = get_true_type(field->get_type());
+ std::string field_name = field->get_name();
+ std::string cap_name = get_cap_name(field_name);
+
+ if (type->is_container()) {
+ // Method to return the size of the collection
+ indent(out) << "public int get" << cap_name;
+ out << get_cap_name("size() {") << endl;
+
+ indent_up();
+ indent(out) << "return (this." << field_name << " == null) ? 0 : " <<
+ "this." << field_name << ".size();" << endl;
+ indent_down();
+ indent(out) << "}" << endl << endl;
+ }
+
+ if (type->is_set() || type->is_list()) {
+
+ t_type* element_type;
+ if (type->is_set()) {
+ element_type = ((t_set*)type)->get_elem_type();
+ } else {
+ element_type = ((t_list*)type)->get_elem_type();
+ }
+
+ // Iterator getter for sets and lists
+ indent(out) << "public Enumeration get" << cap_name;
+ out << get_cap_name("Enumeration() {") << endl;
+
+ indent_up();
+ indent(out) << "return (this." << field_name << " == null) ? null : " <<
+ "this." << field_name << ".elements();" << endl;
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ // Add to set or list, create if the set/list is null
+ indent(out);
+ out << "public void add" << get_cap_name("to");
+ out << cap_name << "(" << type_name(element_type) << " elem) {" << endl;
+
+ indent_up();
+ indent(out) << "if (this." << field_name << " == null) {" << endl;
+ indent_up();
+ indent(out) << "this." << field_name << " = new " << type_name(type, false, true) <<
+ "();" << endl;
+ indent_down();
+ indent(out) << "}" << endl;
+ if (type->is_set()) {
+ indent(out) << "this." << field_name << ".put(" <<
+ box_type(element_type, "elem") << ", " <<
+ box_type(element_type, "elem") << ");" << endl;
+ } else {
+ indent(out) << "this." << field_name << ".addElement(" <<
+ box_type(element_type, "elem") << ");" << endl;
+ }
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ } else if (type->is_map()) {
+ // Put to map
+ t_type* key_type = ((t_map*)type)->get_key_type();
+ t_type* val_type = ((t_map*)type)->get_val_type();
+
+ indent(out);
+ out << "public void putTo"
+ << cap_name << "(" << type_name(key_type, true) << " key, "
+ << type_name(val_type, true) << " val) {" << endl;
+
+ indent_up();
+ indent(out) << "if (this." << field_name << " == null) {" << endl;
+ indent_up();
+ indent(out) << "this." << field_name << " = new " <<
+ type_name(type, false, true) << "();" << endl;
+ indent_down();
+ indent(out) << "}" << endl;
+ indent(out) << "this." << field_name << ".put(key, val);" << endl;
+ indent_down();
+ indent(out) << "}" << endl << endl;
+ }
+
+ // Simple getter
+ generate_java_doc(out, field);
+ indent(out) << "public " << type_name(type);
+ if (type->is_base_type() &&
+ ((t_base_type*)type)->get_base() == t_base_type::TYPE_BOOL) {
+ out << " is";
+ } else {
+ out << " get";
+ }
+ out << cap_name << "() {" << endl;
+ indent_up();
+ indent(out) << "return this." << field_name << ";" << endl;
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ // Simple setter
+ generate_java_doc(out, field);
+ indent(out) << "public ";
+ out << "void";
+ out << " set" << cap_name << "(" << type_name(type) << " " << field_name << ") {" << endl;
+ indent_up();
+ indent(out) << "this." << field_name << " = " << field_name << ";" <<
+ endl;
+ generate_isset_set(out, field);
+
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ // Unsetter
+ indent(out) << "public void unset" << cap_name << "() {" << endl;
+ indent_up();
+ if (type_can_be_null(type)) {
+ indent(out) << "this." << field_name << " = null;" << endl;
+ } else {
+ indent(out) << "__isset_vector[" << isset_field_id(field) << "] = false;" << endl;
+ }
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ // isSet method
+ indent(out) << "/** Returns true if field " << field_name << " is set (has been asigned a value) and false otherwise */" << endl;
+ indent(out) << "public boolean is" << get_cap_name("set") << cap_name << "() {" << endl;
+ indent_up();
+ if (type_can_be_null(type)) {
+ indent(out) << "return this." << field_name << " != null;" << endl;
+ } else {
+ indent(out) << "return __isset_vector[" << isset_field_id(field) << "];" << endl;
+ }
+ indent_down();
+ indent(out) << "}" << endl << endl;
+
+ indent(out) << "public void set" << cap_name << get_cap_name("isSet") << "(boolean value) {" << endl;
+ indent_up();
+ if (type_can_be_null(type)) {
+ indent(out) << "if (!value) {" << endl;
+ indent(out) << " this." << field_name << " = null;" << endl;
+ indent(out) << "}" << endl;
+ } else {
+ indent(out) << "__isset_vector[" << isset_field_id(field) << "] = value;" << endl;
+ }
+ indent_down();
+ indent(out) << "}" << endl << endl;
+ }
+}
+
+/**
+ * Generates a toString() method for the given struct
+ *
+ * @param tstruct The struct definition
+ */
+void t_javame_generator::generate_java_struct_tostring(ofstream& out,
+ t_struct* tstruct) {
+ out << indent() << "public String toString() {" << endl;
+ indent_up();
+
+ out <<
+ indent() << "StringBuffer sb = new StringBuffer(\"" << tstruct->get_name() << "(\");" << endl;
+ out << indent() << "boolean first = true;" << endl << endl;
+
+ const vector<t_field*>& fields = tstruct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+ bool first = true;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ bool could_be_unset = (*f_iter)->get_req() == t_field::T_OPTIONAL;
+ if(could_be_unset) {
+ indent(out) << "if (" << generate_isset_check(*f_iter) << ") {" << endl;
+ indent_up();
+ }
+
+ t_field* field = (*f_iter);
+
+ if (!first) {
+ indent(out) << "if (!first) sb.append(\", \");" << endl;
+ }
+ indent(out) << "sb.append(\"" << (*f_iter)->get_name() << ":\");" << endl;
+ bool can_be_null = type_can_be_null(field->get_type());
+ if (can_be_null) {
+ indent(out) << "if (this." << (*f_iter)->get_name() << " == null) {" << endl;
+ indent(out) << " sb.append(\"null\");" << endl;
+ indent(out) << "} else {" << endl;
+ indent_up();
+ }
+
+ if (field->get_type()->is_base_type() && ((t_base_type*)(field->get_type()))->is_binary()) {
+ indent(out) << "TBaseHelper.toString(this." << field->get_name() << ", sb);" << endl;
+ } else {
+ indent(out) << "sb.append(this." << (*f_iter)->get_name() << ");" << endl;
+ }
+
+ if (can_be_null) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ indent(out) << "first = false;" << endl;
+
+ if(could_be_unset) {
+ indent_down();
+ indent(out) << "}" << endl;
+ }
+ first = false;
+ }
+ out <<
+ indent() << "sb.append(\")\");" << endl <<
+ indent() << "return sb.toString();" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl <<
+ endl;
+}
+
+/**
+ * Returns a string with the java representation of the given thrift type
+ * (e.g. for the type struct it returns "TType.STRUCT")
+ */
+std::string t_javame_generator::get_java_type_string(t_type* type) {
+ if (type->is_list()){
+ return "TType.LIST";
+ } else if (type->is_map()) {
+ return "TType.MAP";
+ } else if (type->is_set()) {
+ return "TType.SET";
+ } else if (type->is_struct() || type->is_xception()) {
+ return "TType.STRUCT";
+ } else if (type->is_enum()) {
+ return "TType.ENUM";
+ } else if (type->is_typedef()) {
+ return get_java_type_string(((t_typedef*)type)->get_type());
+ } else if (type->is_base_type()) {
+ switch (((t_base_type*)type)->get_base()) {
+ case t_base_type::TYPE_VOID : return "TType.VOID"; break;
+ case t_base_type::TYPE_STRING : return "TType.STRING"; break;
+ case t_base_type::TYPE_BOOL : return "TType.BOOL"; break;
+ case t_base_type::TYPE_BYTE : return "TType.BYTE"; break;
+ case t_base_type::TYPE_I16 : return "TType.I16"; break;
+ case t_base_type::TYPE_I32 : return "TType.I32"; break;
+ case t_base_type::TYPE_I64 : return "TType.I64"; break;
+ case t_base_type::TYPE_DOUBLE : return "TType.DOUBLE"; break;
+ default : throw std::runtime_error("Unknown thrift type \"" + type->get_name() + "\" passed to t_javame_generator::get_java_type_string!"); break; // This should never happen!
+ }
+ } else {
+ throw std::runtime_error("Unknown thrift type \"" + type->get_name() + "\" passed to t_javame_generator::get_java_type_string!"); // This should never happen!
+ }
+}
+
+void t_javame_generator::generate_field_value_meta_data(std::ofstream& out, t_type* type){
+ out << endl;
+ indent_up();
+ indent_up();
+ if (type->is_struct()){
+ indent(out) << "new StructMetaData(TType.STRUCT, " << type_name(type) << ".class";
+ } else if (type->is_container()){
+ if (type->is_list()){
+ indent(out) << "new ListMetaData(TType.LIST, ";
+ t_type* elem_type = ((t_list*)type)->get_elem_type();
+ generate_field_value_meta_data(out, elem_type);
+ } else if (type->is_set()){
+ indent(out) << "new SetMetaData(TType.SET, ";
+ t_type* elem_type = ((t_list*)type)->get_elem_type();
+ generate_field_value_meta_data(out, elem_type);
+ } else{ // map
+ indent(out) << "new MapMetaData(TType.MAP, ";
+ t_type* key_type = ((t_map*)type)->get_key_type();
+ t_type* val_type = ((t_map*)type)->get_val_type();
+ generate_field_value_meta_data(out, key_type);
+ out << ", ";
+ generate_field_value_meta_data(out, val_type);
+ }
+ } else if (type->is_enum()) {
+ indent(out) << "new EnumMetaData(TType.ENUM, " << type_name(type) << ".class";
+ } else {
+ indent(out) << "new FieldValueMetaData(" << get_java_type_string(type);
+ if (type->is_typedef()) {
+ indent(out) << ", \"" << ((t_typedef*)type)->get_symbolic() << "\"";
+ }
+ }
+ out << ")";
+ indent_down();
+ indent_down();
+}
+
+
+/**
+ * Generates a thrift service. In C++, this comprises an entirely separate
+ * header and source file. The header file defines the methods and includes
+ * the data types defined in the main header file, and the implementation
+ * file contains implementations of the basic printer and default interfaces.
+ *
+ * @param tservice The service definition
+ */
+void t_javame_generator::generate_service(t_service* tservice) {
+ // Make output file
+ string f_service_name = package_dir_+"/"+service_name_+".java";
+ f_service_.open(f_service_name.c_str());
+
+ f_service_ <<
+ autogen_comment() <<
+ java_package() <<
+ java_type_imports() <<
+ java_thrift_imports();
+
+ f_service_ <<
+ "public class " << service_name_ << " {" << endl <<
+ endl;
+ indent_up();
+
+ // Generate the three main parts of the service
+ generate_service_interface(tservice);
+ generate_service_client(tservice);
+ generate_service_server(tservice);
+ generate_service_helpers(tservice);
+
+ indent_down();
+ f_service_ <<
+ "}" << endl;
+ f_service_.close();
+}
+
+/**
+ * Generates a service interface definition.
+ *
+ * @param tservice The service to generate a header definition for
+ */
+void t_javame_generator::generate_primitive_service_interface(t_service* tservice) {
+ f_service_ << indent() << "public interface Iface extends " <<
+ service_name_ << "Iface { }" << endl << endl;
+
+ string f_interface_name = package_dir_ + "/" + service_name_ + "Iface.java";
+ std::ofstream f_iface;
+ f_iface.open(f_interface_name.c_str());
+
+ string extends_iface = "";
+ if (tservice->get_extends() != NULL) {
+ extends_iface = " extends " + type_name(tservice->get_extends()) + "Iface";
+ }
+
+ f_iface <<
+ autogen_comment() <<
+ java_package() <<
+ java_type_imports() <<
+ java_thrift_imports();
+ generate_java_doc(f_iface, tservice);
+ f_iface <<
+ "public interface " << service_name_ << "Iface" << extends_iface << " {" << endl << endl;
+ vector<t_function*> functions = tservice->get_functions();
+ vector<t_function*>::iterator f_iter;
+ for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+ generate_java_doc(f_iface, *f_iter);
+ f_iface << " public " << function_signature(*f_iter) << ";" << endl << endl;
+ }
+ f_iface << "}" << endl << endl;
+}
+
+/**
+ * Generates a service interface definition.
+ *
+ * @param tservice The service to generate a header definition for
+ */
+void t_javame_generator::generate_service_interface(t_service* tservice) {
+ string extends = "";
+ string extends_iface = "";
+ if (tservice->get_extends() != NULL) {
+ extends = type_name(tservice->get_extends());
+ extends_iface = " extends " + extends + ".Iface";
+ }
+
+ generate_java_doc(f_service_, tservice);
+ f_service_ << indent() << "public interface Iface" << extends_iface <<
+ " {" << endl << endl;
+ indent_up();
+ vector<t_function*> functions = tservice->get_functions();
+ vector<t_function*>::iterator f_iter;
+ for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+ generate_java_doc(f_service_, *f_iter);
+ indent(f_service_) << "public " << function_signature(*f_iter) << ";" << endl << endl;
+ }
+ indent_down();
+ f_service_ << indent() << "}" << endl << endl;
+}
+
+/**
+ * Generates structs for all the service args and return types
+ *
+ * @param tservice The service
+ */
+void t_javame_generator::generate_service_helpers(t_service* tservice) {
+ vector<t_function*> functions = tservice->get_functions();
+ vector<t_function*>::iterator f_iter;
+ for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+ t_struct* ts = (*f_iter)->get_arglist();
+ generate_java_struct_definition(f_service_, ts, false, true);
+ generate_function_helpers(*f_iter);
+ }
+}
+
+/**
+ * Generates a service client definition.
+ *
+ * @param tservice The service to generate a server for.
+ */
+void t_javame_generator::generate_service_client(t_service* tservice) {
+ string extends = "";
+ string extends_client = "";
+ if (tservice->get_extends() != NULL) {
+ extends = type_name(tservice->get_extends());
+ extends_client = " extends " + extends + ".Client";
+ }
+
+ indent(f_service_) <<
+ "public static class Client" << extends_client << " implements TServiceClient, Iface {" << endl;
+ indent_up();
+
+ indent(f_service_) <<
+ "public Client(TProtocol prot)" << endl;
+ scope_up(f_service_);
+ indent(f_service_) <<
+ "this(prot, prot);" << endl;
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ indent(f_service_) <<
+ "public Client(TProtocol iprot, TProtocol oprot)" << endl;
+ scope_up(f_service_);
+ if (extends.empty()) {
+ f_service_ <<
+ indent() << "iprot_ = iprot;" << endl <<
+ indent() << "oprot_ = oprot;" << endl;
+ } else {
+ f_service_ <<
+ indent() << "super(iprot, oprot);" << endl;
+ }
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ if (extends.empty()) {
+ f_service_ <<
+ indent() << "protected TProtocol iprot_;" << endl <<
+ indent() << "protected TProtocol oprot_;" << endl <<
+ endl <<
+ indent() << "protected int seqid_;" << endl <<
+ endl;
+
+ indent(f_service_) <<
+ "public TProtocol getInputProtocol()" << endl;
+ scope_up(f_service_);
+ indent(f_service_) <<
+ "return this.iprot_;" << endl;
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ indent(f_service_) <<
+ "public TProtocol getOutputProtocol()" << endl;
+ scope_up(f_service_);
+ indent(f_service_) <<
+ "return this.oprot_;" << endl;
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ }
+
+ // Generate client method implementations
+ vector<t_function*> functions = tservice->get_functions();
+ vector<t_function*>::const_iterator f_iter;
+ for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+ string funname = (*f_iter)->get_name();
+
+ // Open function
+ indent(f_service_) <<
+ "public " << function_signature(*f_iter) << endl;
+ scope_up(f_service_);
+ indent(f_service_) <<
+ "send_" << funname << "(";
+
+ // Get the struct of function call params
+ t_struct* arg_struct = (*f_iter)->get_arglist();
+
+ // Declare the function arguments
+ const vector<t_field*>& fields = arg_struct->get_members();
+ vector<t_field*>::const_iterator fld_iter;
+ bool first = true;
+ for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
+ if (first) {
+ first = false;
+ } else {
+ f_service_ << ", ";
+ }
+ f_service_ << (*fld_iter)->get_name();
+ }
+ f_service_ << ");" << endl;
+
+ if (!(*f_iter)->is_oneway()) {
+ f_service_ << indent();
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ f_service_ << "return ";
+ }
+ f_service_ <<
+ "recv_" << funname << "();" << endl;
+ }
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ t_function send_function(g_type_void,
+ string("send_") + (*f_iter)->get_name(),
+ (*f_iter)->get_arglist());
+
+ string argsname = (*f_iter)->get_name() + "_args";
+
+ // Open function
+ indent(f_service_) <<
+ "public " << function_signature(&send_function) << endl;
+ scope_up(f_service_);
+
+ // Serialize the request
+ f_service_ <<
+ indent() << "oprot_.writeMessageBegin(new TMessage(\"" << funname << "\", TMessageType.CALL, ++seqid_));" << endl <<
+ indent() << argsname << " args = new " << argsname << "();" << endl;
+
+ for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
+ f_service_ <<
+ indent() << "args.set" << get_cap_name((*fld_iter)->get_name()) << "(" << (*fld_iter)->get_name() << ");" << endl;
+ }
+
+ f_service_ <<
+ indent() << "args.write(oprot_);" << endl <<
+ indent() << "oprot_.writeMessageEnd();" << endl <<
+ indent() << "oprot_.getTransport().flush();" << endl;
+
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ if (!(*f_iter)->is_oneway()) {
+ string resultname = (*f_iter)->get_name() + "_result";
+
+ t_struct noargs(program_);
+ t_function recv_function((*f_iter)->get_returntype(),
+ string("recv_") + (*f_iter)->get_name(),
+ &noargs,
+ (*f_iter)->get_xceptions());
+ // Open function
+ indent(f_service_) <<
+ "public " << function_signature(&recv_function) << endl;
+ scope_up(f_service_);
+
+ f_service_ <<
+ indent() << "TMessage msg = iprot_.readMessageBegin();" << endl <<
+ indent() << "if (msg.type == TMessageType.EXCEPTION) {" << endl <<
+ indent() << " TApplicationException x = TApplicationException.read(iprot_);" << endl <<
+ indent() << " iprot_.readMessageEnd();" << endl <<
+ indent() << " throw x;" << endl <<
+ indent() << "}" << endl <<
+ indent() << "if (msg.seqid != seqid_) {" << endl <<
+ indent() << " throw new TApplicationException(TApplicationException.BAD_SEQUENCE_ID, \"" << (*f_iter)->get_name() << " failed: out of sequence response\");" << endl <<
+ indent() << "}" << endl <<
+ indent() << resultname << " result = new " << resultname << "();" << endl <<
+ indent() << "result.read(iprot_);" << endl <<
+ indent() << "iprot_.readMessageEnd();" << endl;
+
+ // Careful, only return _result if not a void function
+ if (!(*f_iter)->get_returntype()->is_void()) {
+ f_service_ <<
+ indent() << "if (result." << generate_isset_check("success") << ") {" << endl <<
+ indent() << " return result.success;" << endl <<
+ indent() << "}" << endl;
+ }
+
+ t_struct* xs = (*f_iter)->get_xceptions();
+ const std::vector<t_field*>& xceptions = xs->get_members();
+ vector<t_field*>::const_iterator x_iter;
+ for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
+ f_service_ <<
+ indent() << "if (result." << (*x_iter)->get_name() << " != null) {" << endl <<
+ indent() << " throw result." << (*x_iter)->get_name() << ";" << endl <<
+ indent() << "}" << endl;
+ }
+
+ // If you get here it's an exception, unless a void function
+ if ((*f_iter)->get_returntype()->is_void()) {
+ indent(f_service_) <<
+ "return;" << endl;
+ } else {
+ f_service_ <<
+ indent() << "throw new TApplicationException(TApplicationException.MISSING_RESULT, \"" << (*f_iter)->get_name() << " failed: unknown result\");" << endl;
+ }
+
+ // Close function
+ scope_down(f_service_);
+ f_service_ << endl;
+ }
+ }
+
+ indent_down();
+ indent(f_service_) <<
+ "}" << endl;
+}
+
+/**
+ * Generates a service server definition.
+ *
+ * @param tservice The service to generate a server for.
+ */
+void t_javame_generator::generate_service_server(t_service* tservice) {
+ // Generate the dispatch methods
+ vector<t_function*> functions = tservice->get_functions();
+ vector<t_function*>::iterator f_iter;
+
+ // Extends stuff
+ string extends = "";
+ string extends_processor = "";
+ if (tservice->get_extends() != NULL) {
+ extends = type_name(tservice->get_extends());
+ extends_processor = " extends " + extends + ".Processor";
+ }
+
+ // Generate the header portion
+ indent(f_service_) <<
+ "public static class Processor" << extends_processor << " implements TProcessor {" << endl;
+ indent_up();
+
+ indent(f_service_) <<
+ "public Processor(Iface iface)" << endl;
+ scope_up(f_service_);
+ if (!extends.empty()) {
+ f_service_ <<
+ indent() << "super(iface);" << endl;
+ }
+ f_service_ <<
+ indent() << "iface_ = iface;" << endl;
+
+ for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+ f_service_ <<
+ indent() << "processMap_.put(\"" << (*f_iter)->get_name() << "\", new " << (*f_iter)->get_name() << "());" << endl;
+ }
+
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ if (extends.empty()) {
+ f_service_ <<
+ indent() << "protected static interface ProcessFunction {" << endl <<
+ indent() << " public void process(int seqid, TProtocol iprot, TProtocol oprot) throws TException;" << endl <<
+ indent() << "}" << endl <<
+ endl;
+ }
+
+ f_service_ <<
+ indent() << "private Iface iface_;" << endl;
+
+ if (extends.empty()) {
+ f_service_ <<
+ indent() << "protected final Hashtable processMap_ = new Hashtable();" << endl;
+ }
+
+ f_service_ << endl;
+
+ // Generate the server implementation
+ indent(f_service_) <<
+ "public boolean process(TProtocol iprot, TProtocol oprot) throws TException" << endl;
+ scope_up(f_service_);
+
+ f_service_ <<
+ indent() << "TMessage msg = iprot.readMessageBegin();" << endl;
+
+ // TODO(mcslee): validate message, was the seqid etc. legit?
+
+ f_service_ <<
+ indent() << "ProcessFunction fn = (ProcessFunction)processMap_.get(msg.name);" << endl <<
+ indent() << "if (fn == null) {" << endl <<
+ indent() << " TProtocolUtil.skip(iprot, TType.STRUCT);" << endl <<
+ indent() << " iprot.readMessageEnd();" << endl <<
+ indent() << " TApplicationException x = new TApplicationException(TApplicationException.UNKNOWN_METHOD, \"Invalid method name: '\"+msg.name+\"'\");" << endl <<
+ indent() << " oprot.writeMessageBegin(new TMessage(msg.name, TMessageType.EXCEPTION, msg.seqid));" << endl <<
+ indent() << " x.write(oprot);" << endl <<
+ indent() << " oprot.writeMessageEnd();" << endl <<
+ indent() << " oprot.getTransport().flush();" << endl <<
+ indent() << " return true;" << endl <<
+ indent() << "}" << endl <<
+ indent() << "fn.process(msg.seqid, iprot, oprot);" << endl;
+
+ f_service_ <<
+ indent() << "return true;" << endl;
+
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ // Generate the process subfunctions
+ for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+ generate_process_function(tservice, *f_iter);
+ }
+
+ indent_down();
+ indent(f_service_) <<
+ "}" << endl <<
+ endl;
+}
+
+/**
+ * Generates a struct and helpers for a function.
+ *
+ * @param tfunction The function
+ */
+void t_javame_generator::generate_function_helpers(t_function* tfunction) {
+ if (tfunction->is_oneway()) {
+ return;
+ }
+
+ t_struct result(program_, tfunction->get_name() + "_result");
+ t_field success(tfunction->get_returntype(), "success", 0);
+ if (!tfunction->get_returntype()->is_void()) {
+ result.append(&success);
+ }
+
+ t_struct* xs = tfunction->get_xceptions();
+ const vector<t_field*>& fields = xs->get_members();
+ vector<t_field*>::const_iterator f_iter;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ result.append(*f_iter);
+ }
+
+ generate_java_struct_definition(f_service_, &result, false, true, true);
+}
+
+/**
+ * Generates a process function definition.
+ *
+ * @param tfunction The function to write a dispatcher for
+ */
+void t_javame_generator::generate_process_function(t_service* tservice,
+ t_function* tfunction) {
+ // Open class
+ indent(f_service_) <<
+ "private class " << tfunction->get_name() << " implements ProcessFunction {" << endl;
+ indent_up();
+
+ // Open function
+ indent(f_service_) <<
+ "public void process(int seqid, TProtocol iprot, TProtocol oprot) throws TException" << endl;
+ scope_up(f_service_);
+
+ string argsname = tfunction->get_name() + "_args";
+ string resultname = tfunction->get_name() + "_result";
+
+ f_service_ <<
+ indent() << argsname << " args = new " << argsname << "();" << endl <<
+ indent() << "try {" << endl;
+ indent_up();
+ f_service_ <<
+ indent() << "args.read(iprot);" << endl;
+ indent_down();
+ f_service_ <<
+ indent() << "} catch (TProtocolException e) {" << endl;
+ indent_up();
+ f_service_ <<
+ indent() << "iprot.readMessageEnd();" << endl <<
+ indent() << "TApplicationException x = new TApplicationException(TApplicationException.PROTOCOL_ERROR, e.getMessage());" << endl <<
+ indent() << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() << "\", TMessageType.EXCEPTION, seqid));" << endl <<
+ indent() << "x.write(oprot);" << endl <<
+ indent() << "oprot.writeMessageEnd();" << endl <<
+ indent() << "oprot.getTransport().flush();" << endl <<
+ indent() << "return;" << endl;
+ indent_down();
+ f_service_ << indent() << "}" << endl;
+ f_service_ <<
+ indent() << "iprot.readMessageEnd();" << endl;
+
+ t_struct* xs = tfunction->get_xceptions();
+ const std::vector<t_field*>& xceptions = xs->get_members();
+ vector<t_field*>::const_iterator x_iter;
+
+ // Declare result for non oneway function
+ if (!tfunction->is_oneway()) {
+ f_service_ <<
+ indent() << resultname << " result = new " << resultname << "();" << endl;
+ }
+
+ // Try block for a function with exceptions
+ if (xceptions.size() > 0) {
+ f_service_ <<
+ indent() << "try {" << endl;
+ indent_up();
+ }
+
+ // Generate the function call
+ t_struct* arg_struct = tfunction->get_arglist();
+ const std::vector<t_field*>& fields = arg_struct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+
+ f_service_ << indent();
+ if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void()) {
+ f_service_ << "result.success = ";
+ }
+ f_service_ <<
+ "iface_." << tfunction->get_name() << "(";
+ bool first = true;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ if (first) {
+ first = false;
+ } else {
+ f_service_ << ", ";
+ }
+ f_service_ << "args." << (*f_iter)->get_name();
+ }
+ f_service_ << ");" << endl;
+
+ // Set isset on success field
+ if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void() && !type_can_be_null(tfunction->get_returntype())) {
+ f_service_ <<
+ indent() << "result.set" << get_cap_name("success") << get_cap_name("isSet") << "(true);" << endl;
+ }
+
+ if (!tfunction->is_oneway() && xceptions.size() > 0) {
+ indent_down();
+ f_service_ << indent() << "}";
+ for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
+ f_service_ << " catch (" << type_name((*x_iter)->get_type(), false, false) << " " << (*x_iter)->get_name() << ") {" << endl;
+ if (!tfunction->is_oneway()) {
+ indent_up();
+ f_service_ <<
+ indent() << "result." << (*x_iter)->get_name() << " = " << (*x_iter)->get_name() << ";" << endl;
+ indent_down();
+ f_service_ << indent() << "}";
+ } else {
+ f_service_ << "}";
+ }
+ }
+ f_service_ << " catch (Throwable th) {" << endl;
+ indent_up();
+ f_service_ <<
+ indent() << "TApplicationException x = new TApplicationException(TApplicationException.INTERNAL_ERROR, \"Internal error processing " << tfunction->get_name() << "\");" << endl <<
+ indent() << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() << "\", TMessageType.EXCEPTION, seqid));" << endl <<
+ indent() << "x.write(oprot);" << endl <<
+ indent() << "oprot.writeMessageEnd();" << endl <<
+ indent() << "oprot.getTransport().flush();" << endl <<
+ indent() << "return;" << endl;
+ indent_down();
+ f_service_ << indent() << "}" << endl;
+ }
+
+ // Shortcut out here for oneway functions
+ if (tfunction->is_oneway()) {
+ f_service_ <<
+ indent() << "return;" << endl;
+ scope_down(f_service_);
+
+ // Close class
+ indent_down();
+ f_service_ <<
+ indent() << "}" << endl <<
+ endl;
+ return;
+ }
+
+ f_service_ <<
+ indent() << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() << "\", TMessageType.REPLY, seqid));" << endl <<
+ indent() << "result.write(oprot);" << endl <<
+ indent() << "oprot.writeMessageEnd();" << endl <<
+ indent() << "oprot.getTransport().flush();" << endl;
+
+ // Close function
+ scope_down(f_service_);
+ f_service_ << endl;
+
+ // Close class
+ indent_down();
+ f_service_ <<
+ indent() << "}" << endl <<
+ endl;
+}
+
+/**
+ * Deserializes a field of any type.
+ *
+ * @param tfield The field
+ * @param prefix The variable name or container for this field
+ */
+void t_javame_generator::generate_deserialize_field(ofstream& out,
+ t_field* tfield,
+ string prefix) {
+ t_type* type = get_true_type(tfield->get_type());
+
+ if (type->is_void()) {
+ throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " +
+ prefix + tfield->get_name();
+ }
+
+ string name = prefix + tfield->get_name();
+
+ if (type->is_struct() || type->is_xception()) {
+ generate_deserialize_struct(out,
+ (t_struct*)type,
+ name);
+ } else if (type->is_container()) {
+ generate_deserialize_container(out, type, name);
+ } else if (type->is_base_type()) {
+ indent(out) << name << " = iprot.";
+
+ t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
+ switch (tbase) {
+ case t_base_type::TYPE_VOID:
+ throw "compiler error: cannot serialize void field in a struct: " +
+ name;
+ break;
+ case t_base_type::TYPE_STRING:
+ if (!((t_base_type*)type)->is_binary()) {
+ out << "readString();";
+ } else {
+ out << "readBinary();";
+ }
+ break;
+ case t_base_type::TYPE_BOOL:
+ out << "readBool();";
+ break;
+ case t_base_type::TYPE_BYTE:
+ out << "readByte();";
+ break;
+ case t_base_type::TYPE_I16:
+ out << "readI16();";
+ break;
+ case t_base_type::TYPE_I32:
+ out << "readI32();";
+ break;
+ case t_base_type::TYPE_I64:
+ out << "readI64();";
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ out << "readDouble();";
+ break;
+ default:
+ throw "compiler error: no Java name for base type " + t_base_type::t_base_name(tbase);
+ }
+ out << endl;
+ } else if (type->is_enum()) {
+ indent(out) << name << " = " << type_name(tfield->get_type(), true, false) + ".findByValue(iprot.readI32());" << endl;
+ } else {
+ printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n",
+ tfield->get_name().c_str(), type_name(type).c_str());
+ }
+}
+
+/**
+ * Generates an unserializer for a struct, invokes read()
+ */
+void t_javame_generator::generate_deserialize_struct(ofstream& out,
+ t_struct* tstruct,
+ string prefix) {
+ out <<
+ indent() << prefix << " = new " << type_name(tstruct) << "();" << endl <<
+ indent() << prefix << ".read(iprot);" << endl;
+}
+
+/**
+ * Deserializes a container by reading its size and then iterating
+ */
+void t_javame_generator::generate_deserialize_container(ofstream& out,
+ t_type* ttype,
+ string prefix) {
+ scope_up(out);
+
+ string obj;
+
+ if (ttype->is_map()) {
+ obj = tmp("_map");
+ } else if (ttype->is_set()) {
+ obj = tmp("_set");
+ } else if (ttype->is_list()) {
+ obj = tmp("_list");
+ }
+
+ // Declare variables, read header
+ if (ttype->is_map()) {
+ indent(out) << "TMap " << obj << " = iprot.readMapBegin();" << endl;
+ } else if (ttype->is_set()) {
+ indent(out) << "TSet " << obj << " = iprot.readSetBegin();" << endl;
+ } else if (ttype->is_list()) {
+ indent(out) << "TList " << obj << " = iprot.readListBegin();" << endl;
+ }
+
+ indent(out)
+ << prefix << " = new " << type_name(ttype, false, true)
+ // size the collection correctly
+ << "("
+ << (ttype->is_list() ? "" : "2*" )
+ << obj << ".size"
+ << ");" << endl;
+
+ // For loop iterates over elements
+ string i = tmp("_i");
+ indent(out) <<
+ "for (int " << i << " = 0; " <<
+ i << " < " << obj << ".size" << "; " <<
+ "++" << i << ")" << endl;
+
+ scope_up(out);
+
+ if (ttype->is_map()) {
+ generate_deserialize_map_element(out, (t_map*)ttype, prefix);
+ } else if (ttype->is_set()) {
+ generate_deserialize_set_element(out, (t_set*)ttype, prefix);
+ } else if (ttype->is_list()) {
+ generate_deserialize_list_element(out, (t_list*)ttype, prefix);
+ }
+
+ scope_down(out);
+
+ // Read container end
+ if (ttype->is_map()) {
+ indent(out) << "iprot.readMapEnd();" << endl;
+ } else if (ttype->is_set()) {
+ indent(out) << "iprot.readSetEnd();" << endl;
+ } else if (ttype->is_list()) {
+ indent(out) << "iprot.readListEnd();" << endl;
+ }
+
+ scope_down(out);
+}
+
+
+/**
+ * Generates code to deserialize a map
+ */
+void t_javame_generator::generate_deserialize_map_element(ofstream& out,
+ t_map* tmap,
+ string prefix) {
+ string key = tmp("_key");
+ string val = tmp("_val");
+ t_field fkey(tmap->get_key_type(), key);
+ t_field fval(tmap->get_val_type(), val);
+
+ indent(out) <<
+ declare_field(&fkey) << endl;
+ indent(out) <<
+ declare_field(&fval) << endl;
+
+ generate_deserialize_field(out, &fkey);
+ generate_deserialize_field(out, &fval);
+
+ indent(out) <<
+ prefix << ".put(" <<
+ box_type(tmap->get_key_type(), key) << ", " <<
+ box_type(tmap->get_val_type(), val) << ");" << endl;
+}
+
+/**
+ * Deserializes a set element
+ */
+void t_javame_generator::generate_deserialize_set_element(ofstream& out,
+ t_set* tset,
+ string prefix) {
+ string elem = tmp("_elem");
+ t_field felem(tset->get_elem_type(), elem);
+
+ indent(out) <<
+ declare_field(&felem) << endl;
+
+ generate_deserialize_field(out, &felem);
+
+ indent(out) <<
+ prefix << ".put(" <<
+ box_type(tset->get_elem_type(), elem) << ", " <<
+ box_type(tset->get_elem_type(), elem) << ");" << endl;
+}
+
+/**
+ * Deserializes a list element
+ */
+void t_javame_generator::generate_deserialize_list_element(ofstream& out,
+ t_list* tlist,
+ string prefix) {
+ string elem = tmp("_elem");
+ t_field felem(tlist->get_elem_type(), elem);
+
+ indent(out) <<
+ declare_field(&felem) << endl;
+
+ generate_deserialize_field(out, &felem);
+
+ indent(out) <<
+ prefix << ".addElement(" <<
+ box_type(tlist->get_elem_type(), elem) << ");" << endl;
+}
+
+
+/**
+ * Serializes a field of any type.
+ *
+ * @param tfield The field to serialize
+ * @param prefix Name to prepend to field name
+ */
+void t_javame_generator::generate_serialize_field(ofstream& out,
+ t_field* tfield,
+ string prefix) {
+ t_type* type = get_true_type(tfield->get_type());
+
+ // Do nothing for void types
+ if (type->is_void()) {
+ throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " +
+ prefix + tfield->get_name();
+ }
+
+ if (type->is_struct() || type->is_xception()) {
+ generate_serialize_struct(out,
+ (t_struct*)type,
+ prefix + tfield->get_name());
+ } else if (type->is_container()) {
+ generate_serialize_container(out,
+ type,
+ prefix + tfield->get_name());
+ } else if (type->is_enum()){
+ indent(out) << "oprot.writeI32(" << prefix + tfield->get_name() << ".getValue());" << endl;
+ } else if (type->is_base_type()) {
+ string name = prefix + tfield->get_name();
+ indent(out) <<
+ "oprot.";
+
+ if (type->is_base_type()) {
+ t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
+ switch (tbase) {
+ case t_base_type::TYPE_VOID:
+ throw
+ "compiler error: cannot serialize void field in a struct: " + name;
+ break;
+ case t_base_type::TYPE_STRING:
+ if (((t_base_type*)type)->is_binary()) {
+ out << "writeBinary(" << name << ");";
+ } else {
+ out << "writeString(" << name << ");";
+ }
+ break;
+ case t_base_type::TYPE_BOOL:
+ out << "writeBool(" << name << ");";
+ break;
+ case t_base_type::TYPE_BYTE:
+ out << "writeByte(" << name << ");";
+ break;
+ case t_base_type::TYPE_I16:
+ out << "writeI16(" << name << ");";
+ break;
+ case t_base_type::TYPE_I32:
+ out << "writeI32(" << name << ");";
+ break;
+ case t_base_type::TYPE_I64:
+ out << "writeI64(" << name << ");";
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ out << "writeDouble(" << name << ");";
+ break;
+ default:
+ throw "compiler error: no Java name for base type " + t_base_type::t_base_name(tbase);
+ }
+ } else if (type->is_enum()) {
+ out << "writeI32(" << name << ");";
+ }
+ out << endl;
+ } else {
+ printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s%s' TYPE '%s'\n",
+ prefix.c_str(),
+ tfield->get_name().c_str(),
+ type_name(type).c_str());
+ }
+}
+
+/**
+ * Serializes all the members of a struct.
+ *
+ * @param tstruct The struct to serialize
+ * @param prefix String prefix to attach to all fields
+ */
+void t_javame_generator::generate_serialize_struct(ofstream& out,
+ t_struct* tstruct,
+ string prefix) {
+ out <<
+ indent() << prefix << ".write(oprot);" << endl;
+}
+
+/**
+ * Serializes a container by writing its size then the elements.
+ *
+ * @param ttype The type of container
+ * @param prefix String prefix for fields
+ */
+void t_javame_generator::generate_serialize_container(ofstream& out,
+ t_type* ttype,
+ string prefix) {
+ scope_up(out);
+
+ if (ttype->is_map()) {
+ indent(out) <<
+ "oprot.writeMapBegin(new TMap(" <<
+ type_to_enum(((t_map*)ttype)->get_key_type()) << ", " <<
+ type_to_enum(((t_map*)ttype)->get_val_type()) << ", " <<
+ prefix << ".size()));" << endl;
+ } else if (ttype->is_set()) {
+ indent(out) <<
+ "oprot.writeSetBegin(new TSet(" <<
+ type_to_enum(((t_set*)ttype)->get_elem_type()) << ", " <<
+ prefix << ".size()));" << endl;
+ } else if (ttype->is_list()) {
+ indent(out) <<
+ "oprot.writeListBegin(new TList(" <<
+ type_to_enum(((t_list*)ttype)->get_elem_type()) << ", " <<
+ prefix << ".size()));" << endl;
+ }
+
+ string iter = tmp("_iter");
+ if (ttype->is_map()) {
+ string enumer = iter + "_enum";
+ string key_type = type_name(((t_map*)ttype)->get_key_type(), true, false);
+ indent(out) <<
+ "for (Enumeration " << enumer << " = " << prefix << ".keys(); " << enumer << ".hasMoreElements(); ) ";
+ scope_up(out);
+ indent(out)
+ << key_type << " " << iter << " = (" << key_type << ")" << enumer << ".nextElement();" << endl;
+ } else if (ttype->is_set()) {
+ string enumer = iter + "_enum";
+ string ele_type = type_name(((t_list*)ttype)->get_elem_type(), true);
+ indent(out) <<
+ "for (Enumeration " << enumer << " = " << prefix << ".keys(); " << enumer << ".hasMoreElements(); ) ";
+ scope_up(out);
+ indent(out)
+ << ele_type << " " << iter << " = ("
+ << ele_type << ")" << enumer << ".nextElement();" << endl;
+ } else if (ttype->is_list()) {
+ string enumer = iter + "_enum";
+ indent(out) <<
+ "for (Enumeration " << enumer << " = " << prefix << ".elements(); " << enumer << ".hasMoreElements(); ) ";
+ scope_up(out);
+ string ele_type = type_name(((t_list*)ttype)->get_elem_type(), true);
+ indent(out)
+ << ele_type << " " << iter << " = ("
+ << ele_type << ")" << enumer << ".nextElement();" << endl;
+ }
+
+ if (ttype->is_map()) {
+ generate_serialize_map_element(out, (t_map*)ttype, iter, prefix);
+ } else if (ttype->is_set()) {
+ generate_serialize_set_element(out, (t_set*)ttype, iter);
+ } else if (ttype->is_list()) {
+ generate_serialize_list_element(out, (t_list*)ttype, iter);
+ }
+ scope_down(out);
+
+ if (ttype->is_map()) {
+ indent(out) <<
+ "oprot.writeMapEnd();" << endl;
+ } else if (ttype->is_set()) {
+ indent(out) <<
+ "oprot.writeSetEnd();" << endl;
+ } else if (ttype->is_list()) {
+ indent(out) <<
+ "oprot.writeListEnd();" << endl;
+ }
+
+ scope_down(out);
+}
+
+/**
+ * Serializes the members of a map.
+ */
+void t_javame_generator::generate_serialize_map_element(ofstream& out,
+ t_map* tmap,
+ string iter,
+ string map) {
+ t_field kfield(tmap->get_key_type(), iter);
+ generate_serialize_field(out, &kfield, "");
+ string val_type = type_name(tmap->get_val_type(), true, false);
+ t_field vfield(tmap->get_val_type(), "(" + val_type + ")" + map + ".get(" + iter + ")");
+ generate_serialize_field(out, &vfield, "");
+}
+
+/**
+ * Serializes the members of a set.
+ */
+void t_javame_generator::generate_serialize_set_element(ofstream& out,
+ t_set* tset,
+ string iter) {
+ t_field efield(tset->get_elem_type(), iter);
+ generate_serialize_field(out, &efield, "");
+}
+
+/**
+ * Serializes the members of a list.
+ */
+void t_javame_generator::generate_serialize_list_element(ofstream& out,
+ t_list* tlist,
+ string iter) {
+ t_field efield(tlist->get_elem_type(), iter);
+ generate_serialize_field(out, &efield, "");
+}
+
+/**
+ * Returns a Java type name
+ *
+ * @param ttype The type
+ * @param container Is the type going inside a container?
+ * @return Java type name, i.e. Vector
+ */
+string t_javame_generator::type_name(t_type* ttype, bool in_container, bool in_init, bool skip_generic) {
+ // In Java typedefs are just resolved to their real type
+ ttype = get_true_type(ttype);
+ string prefix;
+
+ if (ttype->is_base_type()) {
+ return base_type_name((t_base_type*)ttype, in_container);
+ } else if (ttype->is_map()) {
+ return "Hashtable";
+ } else if (ttype->is_set()) {
+ return "Hashtable";
+ } else if (ttype->is_list()) {
+ return "Vector";
+ }
+
+ // Check for namespacing
+ t_program* program = ttype->get_program();
+ if (program != NULL && program != program_) {
+ string package = program->get_namespace("java");
+ if (!package.empty()) {
+ return package + "." + ttype->get_name();
+ }
+ }
+
+ return ttype->get_name();
+}
+
+/**
+ * Returns the C++ type that corresponds to the thrift type.
+ *
+ * @param tbase The base type
+ * @param container Is it going in a Java container?
+ */
+string t_javame_generator::base_type_name(t_base_type* type,
+ bool in_container) {
+ t_base_type::t_base tbase = type->get_base();
+
+ switch (tbase) {
+ case t_base_type::TYPE_VOID:
+ return "void";
+ case t_base_type::TYPE_STRING:
+ if (!type->is_binary()) {
+ return "String";
+ } else {
+ return "byte[]";
+ }
+ case t_base_type::TYPE_BOOL:
+ return (in_container ? "Boolean" : "boolean");
+ case t_base_type::TYPE_BYTE:
+ return (in_container ? "Byte" : "byte");
+ case t_base_type::TYPE_I16:
+ return (in_container ? "Short" : "short");
+ case t_base_type::TYPE_I32:
+ return (in_container ? "Integer" : "int");
+ case t_base_type::TYPE_I64:
+ return (in_container ? "Long" : "long");
+ case t_base_type::TYPE_DOUBLE:
+ return (in_container ? "Double" : "double");
+ default:
+ throw "compiler error: no C++ name for base type " + t_base_type::t_base_name(tbase);
+ }
+}
+
+/**
+ * Declares a field, which may include initialization as necessary.
+ *
+ * @param ttype The type
+ */
+string t_javame_generator::declare_field(t_field* tfield, bool init) {
+ // TODO(mcslee): do we ever need to initialize the field?
+ string result = type_name(tfield->get_type()) + " " + tfield->get_name();
+ if (init) {
+ t_type* ttype = get_true_type(tfield->get_type());
+ if (ttype->is_base_type() && tfield->get_value() != NULL) {
+ ofstream dummy;
+ result += " = " + render_const_value(dummy, tfield->get_name(), ttype, tfield->get_value());
+ } else if (ttype->is_base_type()) {
+ t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base();
+ switch (tbase) {
+ case t_base_type::TYPE_VOID:
+ throw "NO T_VOID CONSTRUCT";
+ case t_base_type::TYPE_STRING:
+ result += " = null";
+ break;
+ case t_base_type::TYPE_BOOL:
+ result += " = false";
+ break;
+ case t_base_type::TYPE_BYTE:
+ case t_base_type::TYPE_I16:
+ case t_base_type::TYPE_I32:
+ case t_base_type::TYPE_I64:
+ result += " = 0";
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ result += " = (double)0";
+ break;
+ }
+
+ } else if (ttype->is_enum()) {
+ result += " = 0";
+ } else if (ttype->is_container()) {
+ result += " = new " + type_name(ttype, false, true) + "()";
+ } else {
+ result += " = new " + type_name(ttype, false, true) + "()";;
+ }
+ }
+ return result + ";";
+}
+
+/**
+ * Renders a function signature of the form 'type name(args)'
+ *
+ * @param tfunction Function definition
+ * @return String of rendered function definition
+ */
+string t_javame_generator::function_signature(t_function* tfunction,
+ string prefix) {
+ t_type* ttype = tfunction->get_returntype();
+ std::string result =
+ type_name(ttype) + " " + prefix + tfunction->get_name() + "(" + argument_list(tfunction->get_arglist()) + ") throws ";
+ t_struct* xs = tfunction->get_xceptions();
+ const std::vector<t_field*>& xceptions = xs->get_members();
+ vector<t_field*>::const_iterator x_iter;
+ for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
+ result += type_name((*x_iter)->get_type(), false, false) + ", ";
+ }
+ result += "TException";
+ return result;
+}
+
+/**
+ * Renders a comma separated field list, with type names
+ */
+string t_javame_generator::argument_list(t_struct* tstruct, bool include_types) {
+ string result = "";
+
+ const vector<t_field*>& fields = tstruct->get_members();
+ vector<t_field*>::const_iterator f_iter;
+ bool first = true;
+ for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
+ if (first) {
+ first = false;
+ } else {
+ result += ", ";
+ }
+ if (include_types) {
+ result += type_name((*f_iter)->get_type()) + " ";
+ }
+ result += (*f_iter)->get_name();
+ }
+ return result;
+}
+
+/**
+ * Converts the parse type to a C++ enum string for the given type.
+ */
+string t_javame_generator::type_to_enum(t_type* type) {
+ type = get_true_type(type);
+
+ if (type->is_base_type()) {
+ t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
+ switch (tbase) {
+ case t_base_type::TYPE_VOID:
+ throw "NO T_VOID CONSTRUCT";
+ case t_base_type::TYPE_STRING:
+ return "TType.STRING";
+ case t_base_type::TYPE_BOOL:
+ return "TType.BOOL";
+ case t_base_type::TYPE_BYTE:
+ return "TType.BYTE";
+ case t_base_type::TYPE_I16:
+ return "TType.I16";
+ case t_base_type::TYPE_I32:
+ return "TType.I32";
+ case t_base_type::TYPE_I64:
+ return "TType.I64";
+ case t_base_type::TYPE_DOUBLE:
+ return "TType.DOUBLE";
+ }
+ } else if (type->is_enum()) {
+ return "TType.I32";
+ } else if (type->is_struct() || type->is_xception()) {
+ return "TType.STRUCT";
+ } else if (type->is_map()) {
+ return "TType.MAP";
+ } else if (type->is_set()) {
+ return "TType.SET";
+ } else if (type->is_list()) {
+ return "TType.LIST";
+ }
+
+ throw "INVALID TYPE IN type_to_enum: " + type->get_name();
+}
+
+/**
+ * Applies the correct style to a string based on the value of nocamel_style_
+ */
+std::string t_javame_generator::get_cap_name(std::string name){
+ name[0] = toupper(name[0]);
+ return name;
+}
+
+string t_javame_generator::constant_name(string name) {
+ string constant_name;
+
+ bool is_first = true;
+ bool was_previous_char_upper = false;
+ for (string::iterator iter = name.begin(); iter != name.end(); ++iter) {
+ string::value_type character = (*iter);
+
+ bool is_upper = isupper(character);
+
+ if (is_upper && !is_first && !was_previous_char_upper) {
+ constant_name += '_';
+ }
+ constant_name += toupper(character);
+
+ is_first = false;
+ was_previous_char_upper = is_upper;
+ }
+
+ return constant_name;
+}
+
+void t_javame_generator::generate_java_docstring_comment(ofstream &out, string contents) {
+ generate_docstring_comment(out,
+ "/**\n",
+ " * ", contents,
+ " */\n");
+}
+
+void t_javame_generator::generate_java_doc(ofstream &out,
+ t_field* field) {
+ if (field->get_type()->is_enum()) {
+ string combined_message = field->get_doc() + "\n@see " + get_enum_class_name(field->get_type());
+ generate_java_docstring_comment(out, combined_message);
+ } else {
+ generate_java_doc(out, (t_doc*)field);
+ }
+}
+
+/**
+ * Emits a JavaDoc comment if the provided object has a doc in Thrift
+ */
+void t_javame_generator::generate_java_doc(ofstream &out,
+ t_doc* tdoc) {
+ if (tdoc->has_doc()) {
+ generate_java_docstring_comment(out, tdoc->get_doc());
+ }
+}
+
+/**
+ * Emits a JavaDoc comment if the provided function object has a doc in Thrift
+ */
+void t_javame_generator::generate_java_doc(ofstream &out,
+ t_function* tfunction) {
+ if (tfunction->has_doc()) {
+ stringstream ss;
+ ss << tfunction->get_doc();
+ const vector<t_field*>& fields = tfunction->get_arglist()->get_members();
+ vector<t_field*>::const_iterator p_iter;
+ for (p_iter = fields.begin(); p_iter != fields.end(); ++p_iter) {
+ t_field* p = *p_iter;
+ ss << "\n@param " << p->get_name();
+ if (p->has_doc()) {
+ ss << " " << p->get_doc();
+ }
+ }
+ generate_docstring_comment(out,
+ "/**\n",
+ " * ", ss.str(),
+ " */\n");
+ }
+}
+
+void t_javame_generator::generate_deep_copy_container(ofstream &out, std::string source_name_p1, std::string source_name_p2,
+ std::string result_name, t_type* type) {
+
+ t_container* container = (t_container*)type;
+ std::string source_name;
+ if (source_name_p2 == "")
+ source_name = source_name_p1;
+ else
+ source_name = source_name_p1 + "." + source_name_p2;
+
+ indent(out) << type_name(type, true, false) << " " << result_name << " = new " << type_name(container, false, true) << "();" << endl;
+
+ std::string iterator_element_name = source_name_p1 + "_element";
+ std::string enumeration_name = source_name_p1 + "_enum";
+ std::string result_element_name = result_name + "_copy";
+
+ if(container->is_map()) {
+ t_type* key_type = ((t_map*)container)->get_key_type();
+ t_type* val_type = ((t_map*)container)->get_val_type();
+
+ indent(out) <<
+ "for (Enumeration " << enumeration_name << " = " << source_name << ".keys(); " << enumeration_name << ".hasMoreElements(); ) {" << endl;
+ indent_up();
+
+ out << endl;
+
+ indent(out) << type_name(key_type, true, false) << " " << iterator_element_name << "_key = (" << type_name(key_type, true, false) << ")" << enumeration_name << ".nextElement();" << endl;
+ indent(out) << type_name(val_type, true, false) << " " << iterator_element_name << "_value = ("
+ << type_name(val_type, true, false) << ")" << source_name << ".get(" << iterator_element_name << "_key);" << endl;
+
+ out << endl;
+
+ if (key_type->is_container()) {
+ generate_deep_copy_container(out, iterator_element_name + "_key", "", result_element_name + "_key", key_type);
+ } else {
+ indent(out) << type_name(key_type, true, false) << " " << result_element_name << "_key = ";
+ generate_deep_copy_non_container(out, iterator_element_name + "_key", result_element_name + "_key", key_type);
+ out << ";" << endl;
+ }
+
+ out << endl;
+
+ if (val_type->is_container()) {
+ generate_deep_copy_container(out, iterator_element_name + "_value", "", result_element_name + "_value", val_type);
+ } else {
+ indent(out) << type_name(val_type, true, false) << " " << result_element_name << "_value = ";
+ generate_deep_copy_non_container(out, iterator_element_name + "_value", result_element_name + "_value", val_type);
+ out << ";" << endl;
+ }
+
+ out << endl;
+
+ indent(out) << result_name << ".put(" << result_element_name << "_key, " << result_element_name << "_value);" << endl;
+
+ indent_down();
+ indent(out) << "}" << endl;
+
+ } else {
+ t_type* elem_type;
+
+ if (container->is_set()) {
+ elem_type = ((t_set*)container)->get_elem_type();
+ } else {
+ elem_type = ((t_list*)container)->get_elem_type();
+ }
+
+ indent(out)
+ << "for (Enumeration " << enumeration_name << " = " << source_name << ".elements(); "
+ << enumeration_name << ".hasMoreElements(); ) {" << endl;
+ indent_up();
+ indent(out)
+ << type_name(elem_type, true, false) << " " << iterator_element_name << " = ("
+ << type_name(elem_type, true, false) << ")" << enumeration_name << ".nextElement();" << endl;
+ if (elem_type->is_container()) {
+ // recursive deep copy
+ generate_deep_copy_container(out, iterator_element_name, "", result_element_name, elem_type);
+ if (elem_type->is_list()) {
+ indent(out) << result_name << ".addElement(" << result_element_name << ");" << endl;
+ } else {
+ indent(out) << result_name << ".put(" << result_element_name << ", " << result_element_name << ");" << endl;
+ }
+ } else {
+ // iterative copy
+ if(((t_base_type*)elem_type)->is_binary()){
+ indent(out) << type_name(elem_type, true, false) << " temp_binary_element = ";
+ generate_deep_copy_non_container(out, iterator_element_name, "temp_binary_element", elem_type);
+ out << ";" << endl;
+ if (elem_type->is_list()) {
+ indent(out) << result_name << ".addElement(temp_binary_element);" << endl;
+ } else {
+ indent(out) << result_name << ".put(temp_binary_element, temp_binary_element);" << endl;
+ }
+ } else{
+ indent(out) << result_name << ".addElement(";
+ generate_deep_copy_non_container(out, iterator_element_name, result_name, elem_type);
+ out << ");" << endl;
+ }
+ }
+
+ indent_down();
+
+ indent(out) << "}" << endl;
+
+ }
+}
+
+void t_javame_generator::generate_deep_copy_non_container(ofstream& out, std::string source_name, std::string dest_name, t_type* type) {
+ if (type->is_base_type() || type->is_enum() || type->is_typedef()) {
+ // binary fields need to be copied with System.arraycopy
+ if (((t_base_type*)type)->is_binary()){
+ out << "new byte[" << source_name << ".length];" << endl;
+ indent(out) << "System.arraycopy(" << source_name << ", 0, " << dest_name << ", 0, " << source_name << ".length)";
+ }
+ // everything else can be copied directly
+ else
+ out << source_name;
+ } else {
+ out << "new " << type_name(type, true, true) << "(" << source_name << ")";
+ }
+}
+
+std::string t_javame_generator::generate_isset_check(t_field* field) {
+ return generate_isset_check(field->get_name());
+}
+
+std::string t_javame_generator::isset_field_id(t_field* field) {
+ return "__" + upcase_string(field->get_name() + "_isset_id");
+}
+
+std::string t_javame_generator::generate_isset_check(std::string field_name) {
+ return "is" + get_cap_name("set") + get_cap_name(field_name) + "()";
+}
+
+void t_javame_generator::generate_isset_set(ofstream& out, t_field* field) {
+ if (!type_can_be_null(field->get_type())) {
+ indent(out) << "set" << get_cap_name(field->get_name()) << get_cap_name("isSet") << "(true);" << endl;
+ }
+}
+
+std::string t_javame_generator::get_enum_class_name(t_type* type) {
+ string package = "";
+ t_program* program = type->get_program();
+ if (program != NULL && program != program_) {
+ package = program->get_namespace("java") + ".";
+ }
+ return package + type->get_name();
+}
+
+void t_javame_generator::generate_struct_desc(ofstream& out, t_struct* tstruct) {
+ indent(out) <<
+ "private static final TStruct STRUCT_DESC = new TStruct(\"" << tstruct->get_name() << "\");" << endl;
+}
+
+void t_javame_generator::generate_field_descs(ofstream& out, t_struct* tstruct) {
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ indent(out) <<
+ "private static final TField " << constant_name((*m_iter)->get_name()) <<
+ "_FIELD_DESC = new TField(\"" << (*m_iter)->get_name() << "\", " <<
+ type_to_enum((*m_iter)->get_type()) << ", " <<
+ "(short)" << (*m_iter)->get_key() << ");" << endl;
+ }
+}
+
+bool t_javame_generator::has_bit_vector(t_struct* tstruct) {
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ if (!type_can_be_null(get_true_type((*m_iter)->get_type()))) {
+ return true;
+ }
+ }
+ return false;
+}
+
+void t_javame_generator::generate_java_struct_clear(std::ofstream& out, t_struct* tstruct) {
+ indent(out) << "public void clear() {" << endl;
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ indent_up();
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_type* t = get_true_type((*m_iter)->get_type());
+ if ((*m_iter)->get_value() != NULL) {
+ print_const_value(out, "this." + (*m_iter)->get_name(), t, (*m_iter)->get_value(), true, true);
+ } else {
+ if (type_can_be_null(t)) {
+ indent(out) << "this." << (*m_iter)->get_name() << " = null;" << endl;
+ } else {
+ // must be a base type
+ // means it also needs to be explicitly unset
+ indent(out) << "set" << get_cap_name((*m_iter)->get_name()) << get_cap_name("isSet") << "(false);" << endl;
+ switch (((t_base_type*)t)->get_base()) {
+ case t_base_type::TYPE_BYTE:
+ case t_base_type::TYPE_I16:
+ case t_base_type::TYPE_I32:
+ case t_base_type::TYPE_I64:
+ indent(out) << "this." << (*m_iter)->get_name() << " = 0;" << endl;
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ indent(out) << "this." << (*m_iter)->get_name() << " = 0.0;" << endl;
+ break;
+ case t_base_type::TYPE_BOOL:
+ indent(out) << "this." << (*m_iter)->get_name() << " = false;" << endl;
+ break;
+ default: // prevent gcc compiler warning
+ break;
+ }
+ }
+ }
+ }
+ indent_down();
+
+ indent(out) << "}" << endl << endl;
+}
+
+THRIFT_REGISTER_GENERATOR(javame, "Java ME", "");