THRIFT-625: Add support for 'Go'; provided by Aalok Shah.



git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1072478 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/tutorial/go/src/GoClient.go b/tutorial/go/src/GoClient.go
new file mode 100644
index 0000000..9440530
--- /dev/null
+++ b/tutorial/go/src/GoClient.go
@@ -0,0 +1,92 @@
+package main;
+
+
+/*
+ * 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.
+ */
+
+
+import (
+  "fmt"
+  "net"
+  "os"
+  "thrift"
+  "thriftlib/tutorial"
+)
+
+func Perform(client *tutorial.CalculatorClient) (err os.Error) {
+  client.Ping()
+  fmt.Print("ping()\n")
+  
+  sum, _ := client.Add(1, 1)
+  fmt.Print("1+1=", sum, "\n")
+  
+  work := tutorial.NewWork()
+  work.Op = tutorial.DIVIDE
+  work.Num1 = 1
+  work.Num2 = 0
+  quotient, ouch, err := client.Calculate(1, work)
+  if err != nil {
+    fmt.Print("Error during operation: ", err.String(), "\n")
+    return err
+  } else if ouch != nil {
+    fmt.Print("Invalid operation: ", ouch.String(), "\n")
+  } else {
+    fmt.Print("Whoa we can divide by 0 with new value: ", quotient, "\n")
+  }
+  
+  work.Op = tutorial.SUBTRACT
+  work.Num1 = 15
+  work.Num2 = 10
+  diff, ouch, err := client.Calculate(1, work)
+  if err != nil {
+    fmt.Print("Error during operation: ", err.String(), "\n")
+    return err
+  } else if ouch != nil {
+    fmt.Print("Invalid operation: ", ouch.String(), "\n")
+  } else {
+    fmt.Print("15-10=", diff, "\n")
+  }
+  
+  log, err := client.GetStruct(1)
+  if err != nil {
+    fmt.Print("Unable to get struct: ", err.String(), "\n")
+    return err
+  } else {
+    fmt.Print("Check log: ", log.Value, "\n")
+  }
+  return err
+}
+
+
+func RunClient(transportFactory thrift.TTransportFactory, protocolFactory thrift.TProtocolFactory) os.Error {
+  addr, err := net.ResolveTCPAddr("localhost:9090")
+  if err != nil {
+    fmt.Print("Error resolving address: ", err.String(), "\n")
+    return err
+  }
+  transport := thrift.NewTSocketAddr(addr)
+  if err = transport.Open(); err != nil {
+    fmt.Print("Error opening connection for protocol ", addr.Network(), " to ", addr.String(), ": ", err.String(), "\n")
+    return err
+  }
+  useTransport := transportFactory.GetTransport(transport)
+  client := tutorial.NewCalculatorClientFactory(useTransport, protocolFactory)
+  Perform(client)
+  return transport.Close()
+}