blob: 3ce1f74cbc8d82c4124ae52d0919c6d997ef0b72 [file] [log] [blame]
/*
* 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.
*/
var Thrift = {
Type : {
"STOP" : 0,
"VOID" : 1,
"BOOL" : 2,
"BYTE" : 3,
"I08" : 3,
"DOUBLE" : 4,
"I16" : 6,
"I32" : 8,
"I64" : 10,
"STRING" : 11,
"UTF7" : 11,
"STRUCT" : 12,
"MAP" : 13,
"SET" : 14,
"LIST" : 15,
"UTF8" : 16,
"UTF16" : 17
},
MessageType : {
"CALL" : 1,
"REPLY" : 2,
"EXCEPTION" : 3
},
objectLength : function(obj) {
var length = 0
for (k in obj)
if (obj.hasOwnProperty(k))
length++
return length
},
inherits : function(constructor, superConstructor) {
function F(){} //Prototypal Inheritance http://javascript.crockford.com/prototypal.html
F.prototype = superConstructor.prototype
constructor.prototype = new F()
}
}
Thrift.TException = {}
Thrift.TException.prototype = {
initialize: function( message, code ) {
this.message = message;
this.code = (code == null) ? 0 : code;
}
}
Thrift.TApplicationExceptionType = {
"UNKNOWN" : 0,
"UNKNOWN_METHOD" : 1,
"INVALID_MESSAGE_TYPE" : 2,
"WRONG_METHOD_NAME" : 3,
"BAD_SEQUENCE_ID" : 4,
"MISSING_RESULT" : 5
}
Thrift.TApplicationException = function(message, code){
this.message = message
this.code = (code == null) ? 0 : code
}
Thrift.TApplicationException.prototype = {
read : function(input){
var ftype
var fid
var ret = input.readStructBegin(fname)
this.fname = ret.fname
while(1){
ret = input.readFieldBegin()
if(ret.ftype == TType.STOP)
break
var fid = ret.fid
switch(fid){
case 1:
if( ret.ftype == Type.STRING ){
ret = input.readString()
this.message = ret.value
} else {
ret = input.skip(ret.ftype)
}
break
case 2:
if( ret.ftype == Type.I32 ){
ret = input.readI32()
this.code = ret.value
} else {
ret = input.skip(ret.ftype)
}
break
default:
ret = input.skip(ret.ftype)
break
}
input.readFieldEnd()
}
input.readStructEnd()
},
write: function(output){
var xfer = 0;
output.writeStructBegin('TApplicationException');
if (this.message) {
output.writeFieldBegin('message', Type.STRING, 1)
output.writeString(this.getMessage())
output.writeFieldEnd()
}
if (this.code) {
output.writeFieldBegin('type', Type.I32, 2)
output.writeI32(this.code)
output.writeFieldEnd()
}
output.writeFieldStop()
output.writeStructEnd()
},
getCode : function() {
return this.code
},
getMessage : function() {
return this.message
}
}
/**
*If you do not specify a url then you must handle ajax on your own.
*This is how to use js bindings in a async fashion.
*/
Thrift.Transport = function(url){
this.url = url
this.wpos = 0
this.rpos = 0
this.send_buf = ''
this.recv_buf = ''
}
Thrift.Transport.prototype = {
//Gets the browser specific XmlHttpRequest Object
getXmlHttpRequestObject : function() {
try { return new XMLHttpRequest() } catch(e) {}
try { return new ActiveXObject("Msxml2.XMLHTTP") } catch (e) {}
try { return new ActiveXObject("Microsoft.XMLHTTP") } catch (e) {}
throw "Your browser doesn't support the XmlHttpRequest object. Try upgrading to Firefox."
},
flush : function(){
//async mode
if(this.url == undefined || this.url == '')
return this.send_buf;
var xreq = this.getXmlHttpRequestObject()
if (xreq.overrideMimeType)
xreq.overrideMimeType("application/json")
xreq.open("POST", this.url, false)
xreq.send(this.send_buf)
if (xreq.readyState != 4)
throw "encountered an unknown ajax ready state: "+xreq.readyState
if (xreq.status != 200)
throw "encountered a unknown request status: "+xreq.status
this.recv_buf = xreq.responseText
this.recv_buf_sz = this.recv_buf.length
this.wpos = this.recv_buf.length
this.rpos = 0
},
setRecvBuffer : function(buf){
this.recv_buf = buf
this.recv_buf_sz = this.recv_buf.length
this.wpos = this.recv_buf.length
this.rpos = 0
},
isOpen : function() {
return true
},
open : function() {},
close: function() {},
read : function(len) {
var avail = this.wpos - this.rpos
if(avail == 0)
return ''
var give = len
if(avail < len)
give = avail
var ret = this.read_buf.substr(this.rpos,give)
this.rpos += give
//clear buf when complete?
return ret
},
readAll : function() {
return this.recv_buf
},
write : function(buf){
this.send_buf = buf
},
getSendBuffer : function(){
return this.send_buf
}
}
Thrift.Protocol = function(transport){
this.transport = transport
}
Thrift.Protocol.Type = {}
Thrift.Protocol.Type[ Thrift.Type.BOOL ] = '"tf"'
Thrift.Protocol.Type[ Thrift.Type.BYTE ] = '"i8"'
Thrift.Protocol.Type[ Thrift.Type.I16 ] = '"i16"'
Thrift.Protocol.Type[ Thrift.Type.I32 ] = '"i32"'
Thrift.Protocol.Type[ Thrift.Type.I64 ] = '"i64"'
Thrift.Protocol.Type[ Thrift.Type.DOUBLE ] = '"dbl"'
Thrift.Protocol.Type[ Thrift.Type.STRUCT ] = '"rec"'
Thrift.Protocol.Type[ Thrift.Type.STRING ] = '"str"'
Thrift.Protocol.Type[ Thrift.Type.MAP ] = '"map"'
Thrift.Protocol.Type[ Thrift.Type.LIST ] = '"lst"'
Thrift.Protocol.Type[ Thrift.Type.SET ] = '"set"'
Thrift.Protocol.RType = {}
Thrift.Protocol.RType[ "tf" ] = Thrift.Type.BOOL
Thrift.Protocol.RType[ "i8" ] = Thrift.Type.BYTE
Thrift.Protocol.RType[ "i16"] = Thrift.Type.I16
Thrift.Protocol.RType[ "i32"] = Thrift.Type.I32
Thrift.Protocol.RType[ "i64"] = Thrift.Type.I64
Thrift.Protocol.RType[ "dbl"] = Thrift.Type.DOUBLE
Thrift.Protocol.RType[ "rec"] = Thrift.Type.STRUCT
Thrift.Protocol.RType[ "str"] = Thrift.Type.STRING
Thrift.Protocol.RType[ "map"] = Thrift.Type.MAP
Thrift.Protocol.RType[ "lst"] = Thrift.Type.LIST
Thrift.Protocol.RType[ "set"] = Thrift.Type.SET
Thrift.Protocol.Version = 1
Thrift.Protocol.prototype = {
getTransport : function(){
return this.transport
},
//Write functions
writeMessageBegin : function(name,messageType,seqid){
this.tstack = new Array()
this.tpos = new Array();
this.tstack.push([Thrift.Protocol.Version,'"'+name+'"',messageType,seqid]);
},
writeMessageEnd : function(){
var obj = this.tstack.pop()
this.wobj = this.tstack.pop()
this.wobj.push(obj)
this.wbuf = "["+this.wobj.join(",")+"]";
this.transport.write(this.wbuf);
},
writeStructBegin : function(name){
this.tpos.push(this.tstack.length)
this.tstack.push({})
},
writeStructEnd : function(){
var p = this.tpos.pop()
var struct = this.tstack[p]
var str = "{"
var first = true
for( var key in struct ){
if(first)
first = false;
else
str += ",";
str += key+":"+struct[key]
}
str += "}"
this.tstack[p] = str;
},
writeFieldBegin : function(name,fieldType,fieldId){
this.tpos.push(this.tstack.length)
this.tstack.push({"fieldId" : '"'+fieldId+'"', "fieldType" : Thrift.Protocol.Type[fieldType]});
},
writeFieldEnd : function(){
var value = this.tstack.pop()
var fieldInfo = this.tstack.pop()
this.tstack[this.tstack.length-1][fieldInfo.fieldId] = "{"+fieldInfo.fieldType+":"+value+"}"
this.tpos.pop()
},
writeFieldStop : function(){
//na
},
writeMapBegin : function(keyType,valType,size){
//size is invalid, we'll set it on end.
this.tpos.push(this.tstack.length)
this.tstack.push([Thrift.Protocol.Type[keyType],Thrift.Protocol.Type[valType],0])
},
writeMapEnd : function(){
var p = this.tpos.pop()
if(p == this.tstack.length)
return;
if((this.tstack.length - p - 1) % 2 != 0)
this.tstack.push("");
var size = (this.tstack.length - p - 1)/2
this.tstack[p][this.tstack[p].length-1] = size;
var map = "{"
var first = true
while( this.tstack.length > p+1 ){
var v = this.tstack.pop()
var k = this.tstack.pop()
if(first){
first = false
}else{
map += ","
}
map += '"'+k+'":'+v
}
map += "}"
this.tstack[p].push(map)
this.tstack[p] = "["+this.tstack[p].join(",")+"]"
},
writeListBegin : function(elemType,size){
this.tpos.push(this.tstack.length)
this.tstack.push([Thrift.Protocol.Type[elemType],size]);
},
writeListEnd : function(){
var p = this.tpos.pop()
while( this.tstack.length > p+1 ){
var tmpVal = this.tstack[p+1]
this.tstack.splice(p+1, 1)
this.tstack[p].push(tmpVal)
}
this.tstack[p] = '['+this.tstack[p].join(",")+']';
},
writeSetBegin : function(elemType,size){
this.tpos.push(this.tstack.length)
this.tstack.push([Thrift.Protocol.Type[elemType],size]);
},
writeSetEnd : function(){
var p = this.tpos.pop()
while( this.tstack.length > p+1 ){
var tmpVal = this.tstack[p+1]
this.tstack.splice(p+1, 1)
this.tstack[p].push(tmpVal)
}
this.tstack[p] = '['+this.tstack[p].join(",")+']';
},
writeBool : function(value){
this.tstack.push( value ? 1 : 0 );
},
writeByte : function(i8){
this.tstack.push(i8);
},
writeI16 : function(i16){
this.tstack.push(i16);
},
writeI32 : function(i32){
this.tstack.push(i32);
},
writeI64 : function(i64){
this.tstack.push(i64);
},
writeDouble : function(dbl){
this.tstack.push(dbl);
},
writeString : function(str){
// We do not encode uri components for wire transfer:
if(str === null) {
this.tstack.push(null);
} else {
// concat may be slower than building a byte buffer
var escapedString = "";
for(var i = 0; i < str.length; i++) {
var ch = str.charAt(i); // a single double quote: "
if(ch === '\"') {
escapedString += '\\\"'; // write out as: \"
} else if(ch === '\\') { // a single backslash: \
escapedString += '\\\\'; // write out as: \\
/* Currently escaped forward slashes break TJSONProtocol.
* As it stands, we can simply pass forward slashes into our strings
* across the wire without being escaped.
* I think this is the protocol's bug, not thrift.js
* } else if(ch === '/') { // a single forward slash: /
* escapedString += '\\/'; // write out as \/
* }
*/
} else if(ch === '\b') { // a single backspace: invisible
escapedString += '\\b'; // write out as: \b"
} else if(ch === '\f') { // a single formfeed: invisible
escapedString += '\\f'; // write out as: \f"
} else if(ch === '\n') { // a single newline: invisible
escapedString += '\\n'; // write out as: \n"
} else if(ch === '\r') { // a single return: invisible
escapedString += '\\r'; // write out as: \r"
} else if(ch === '\t') { // a single tab: invisible
escapedString += '\\t'; // write out as: \t"
} else {
escapedString += ch; // Else it need not be escaped
}
}
this.tstack.push('"' + escapedString + '"');
}
},
writeBinary : function(str){
this.writeString(str);
},
// Reading functions
readMessageBegin : function(name, messageType, seqid){
this.rstack = new Array()
this.rpos = new Array()
this.robj = eval(this.transport.readAll())
var r = {}
var version = this.robj.shift()
if(version != Thrift.Protocol.Version){
throw "Wrong thrift protocol version: "+version
}
r["fname"] = this.robj.shift()
r["mtype"] = this.robj.shift()
r["rseqid"] = this.robj.shift()
//get to the main obj
this.rstack.push(this.robj.shift())
return r
},
readMessageEnd : function(){
},
readStructBegin : function(name){
var r = {}
r["fname"] = ''
//incase this is an array of structs
if(this.rstack[this.rstack.length-1] instanceof Array)
this.rstack.push(this.rstack[this.rstack.length-1].shift())
return r
},
readStructEnd : function(){
if(this.rstack[this.rstack.length-2] instanceof Array)
this.rstack.pop()
},
readFieldBegin : function(){
var r = {};
var fid = -1
var ftype = Thrift.Type.STOP
//get a fieldId
for(var f in (this.rstack[this.rstack.length-1])){
if(f == null) continue
fid = parseInt(f)
this.rpos.push(this.rstack.length)
var field = this.rstack[this.rstack.length-1][fid]
//remove so we don't see it again
delete this.rstack[this.rstack.length-1][fid]
this.rstack.push(field)
break
}
if(fid != -1){
//should only be 1 of these but this is the only
//way to match a key
for(var f in (this.rstack[this.rstack.length-1])){
if(Thrift.Protocol.RType[f] == null ) continue
ftype = Thrift.Protocol.RType[f]
this.rstack[this.rstack.length-1] = this.rstack[this.rstack.length-1][f]
}
}
r["fname"] = ''
r["ftype"] = ftype
r["fid"] = fid
return r
},
readFieldEnd : function(){
var pos = this.rpos.pop()
//get back to the right place in the stack
while(this.rstack.length > pos)
this.rstack.pop();
},
readMapBegin : function(keyType,valType,size){
var map = this.rstack.pop()
var r = {};
r["ktype"] = Thrift.Protocol.RType[map.shift()]
r["vtype"] = Thrift.Protocol.RType[map.shift()]
r["size"] = map.shift()
this.rpos.push(this.rstack.length)
this.rstack.push(map.shift())
return r;
},
readMapEnd : function(){
this.readFieldEnd()
},
readListBegin : function(elemType,size){
var list = this.rstack[this.rstack.length-1]
var r = {};
r["etype"] = Thrift.Protocol.RType[list.shift()];
r["size" ] = list.shift();
this.rpos.push(this.rstack.length);
this.rstack.push(list)
return r;
},
readListEnd : function(){
this.readFieldEnd()
},
readSetBegin : function(elemType,size){
return this.readListBegin(elemType,size)
},
readSetEnd : function(){
return this.readListEnd()
},
readBool : function(){
var r = this.readI32()
if( r != null && r["value"] == "1" ){
r["value"] = true
}else{
r["value"] = false
}
return r
},
readByte : function(){
return this.readI32()
},
readI16 : function(){
return this.readI32()
},
readI32 : function(f){
if(f == undefined)
f = this.rstack[this.rstack.length-1]
var r = {}
if(f instanceof Array){
if(f.length == 0)
r["value"] = undefined
else
r["value"] = f.shift()
}else if(f instanceof Object){
for(var i in f){
if(i == null) continue
this.rstack.push(f[i])
delete f[i]
r["value"] = i
break
}
} else {
r["value"] = f
}
return r
},
readI64 : function(){
return this.readI32()
},
readDouble : function(){
return this.readI32()
},
readString : function(){
var r = this.readI32()
return r
},
readBinary : function(){
return this.readString()
},
//Method to arbitrarily skip over data.
skip : function(type){
throw "skip not supported yet"
}
}