thrift 0.8 tutorial aysnc server & client

CalculatorHandler.java

/*
 * 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 org.apache.thrift.TException;


// Generated code
import tutorial.*;
import shared.*;

import java.util.HashMap;

public class CalculatorHandler implements Calculator.Iface {

  private HashMap<Integer,SharedStruct> log;

  public CalculatorHandler() {
    log = new HashMap<Integer, SharedStruct>();
  }

  public void ping() {
    System.out.println("ping()");
    try {
		Thread.sleep( 5000 );
	} catch (InterruptedException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
  }

  public int add(int n1, int n2) {
    System.out.println("add(" + n1 + "," + n2 + ")");    
    return n1 + n2;
  }

  public int calculate(int logid, Work work) throws InvalidOperation {
    System.out.println("calculate(" + logid + ", {" + work.op + "," + work.num1 + "," + work.num2 + "})");
    int val = 0;
    switch (work.op) {
    case ADD:
      val = work.num1 + work.num2;
      break;
    case SUBTRACT:
      val = work.num1 - work.num2;
      break;
    case MULTIPLY:
      val = work.num1 * work.num2;
      break;
    case DIVIDE:
      if (work.num2 == 0) {
        InvalidOperation io = new InvalidOperation();
        io.what = work.op.getValue();
        io.why = "Cannot divide by 0";
        throw io;
      }
      val = work.num1 / work.num2;
      break;
    default:
      InvalidOperation io = new InvalidOperation();
      io.what = work.op.getValue();
      io.why = "Unknown operation";
      throw io;
    }

    SharedStruct entry = new SharedStruct();
    entry.key = logid;
    entry.value = Integer.toString(val);
    log.put(logid, entry);

    return val;
  }

  public SharedStruct getStruct(int key) {
    System.out.println("getStruct(" + key + ")");
    return log.get(key);
  }

  public void zip() {
    System.out.println("zip()");
  }

}

JavaAsyncClient.java

import java.io.IOException;

import org.apache.thrift.TException;
import org.apache.thrift.async.TAsyncClientManager;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.transport.TNonblockingSocket;

import tutorial.Calculator.AsyncClient.add_call;
import tutorial.Calculator.AsyncClient.ping_call;


public class JavaAsyncClient {
	public static void main( String...args ) throws IOException, TException, InterruptedException {
		
		tutorial.Calculator.AsyncClient.Factory factory = new tutorial.Calculator.AsyncClient.Factory( new TAsyncClientManager(), new TBinaryProtocol.Factory() );
		TNonblockingSocket socket = new TNonblockingSocket( "127.0.0.1", 9090 );
		tutorial.Calculator.AsyncClient client = factory.getAsyncClient( socket );
		
		client.ping( new org.apache.thrift.async.AsyncMethodCallback< tutorial.Calculator.AsyncClient.ping_call>(){

			@Override
			public void onComplete(ping_call response) {
				System.out.println( "ping completed");
				try {
					response.getResult();
				} catch (TException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}

			@Override
			public void onError(Exception exception) {
				// TODO Auto-generated method stub
				
			}
			
		});
		
		client = factory.getAsyncClient( socket );
		client.add( 1, 2, new org.apache.thrift.async.AsyncMethodCallback< tutorial.Calculator.AsyncClient.add_call>(){

			@Override
			public void onComplete(add_call response) {
				try {
					System.out.println( "result=" + response.getResult() );
				} catch (TException e) {
					e.printStackTrace();
				}
				
			}

			@Override
			public void onError(Exception e) {
				e.printStackTrace();
			}
			
		});
		
		System.out.println( "start to wait for the result");
		Thread.sleep( 6000 );
	}
}

JavaAsyncServer.java

import org.apache.thrift.server.TThreadedSelectorServer;
import org.apache.thrift.transport.TNonblockingServerSocket;
import org.apache.thrift.transport.TTransportException;

import tutorial.Calculator;


public class JavaAsyncServer {
	public static void main( String...args ) throws TTransportException {
		TNonblockingServerSocket socket = new TNonblockingServerSocket(9090);
		Calculator.Processor processor = new Calculator.Processor( new CalculatorHandler() );
		TThreadedSelectorServer server = new TThreadedSelectorServer( new TThreadedSelectorServer.Args(socket).processor(processor));
		server.serve();
	}
}