Tomcat example source code file (PooledParallelSender.java)

This example Tomcat source code file (PooledParallelSender.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Tomcat tags/keywords

channelexception, channelexception, channelmessage, datasender, io, ioexception, ioexception, multipointsender, parallelniosender, parallelniosender, pooledparallelsender, pooledsender, runtimeexception, unable, unable

The Tomcat PooledParallelSender.java source code

/*
 * 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.
 */
package org.apache.catalina.tribes.transport.nio;

import java.io.IOException;

import org.apache.catalina.tribes.ChannelException;
import org.apache.catalina.tribes.ChannelMessage;
import org.apache.catalina.tribes.Member;
import org.apache.catalina.tribes.transport.DataSender;
import org.apache.catalina.tribes.transport.MultiPointSender;
import org.apache.catalina.tribes.transport.PooledSender;

/**
 * <p>Title: 

 *
 * <p>Description: 

 *
 * <p>Company: 

 *
 * @author not attributable
 * @version 1.0
 */
public class PooledParallelSender extends PooledSender implements MultiPointSender {
    protected boolean connected = true;
    public PooledParallelSender() {
        super();
    }
    
    public void sendMessage(Member[] destination, ChannelMessage message) throws ChannelException {
        if ( !connected ) throw new ChannelException("Sender not connected.");
        ParallelNioSender sender = (ParallelNioSender)getSender();
        if (sender == null) {
            ChannelException cx = new ChannelException("Unable to retrieve a data sender, time out error.");
            for (int i = 0; i < destination.length; i++) cx.addFaultyMember(destination[i], new NullPointerException("Unable to retrieve a sender from the sender pool"));
            throw cx;
        } else {
            try {
                sender.sendMessage(destination, message);
                sender.keepalive();
            } finally {
                if (!connected) disconnect();
                returnSender(sender);
            }
        }
    }

    public DataSender getNewDataSender() {
        try {
            ParallelNioSender sender = new ParallelNioSender();
            sender.transferProperties(this,sender);
            return sender;
        } catch ( IOException x ) {
            throw new RuntimeException("Unable to open NIO selector.",x);
        }
    }
    
    public synchronized void disconnect() {
        this.connected = false;
        super.disconnect();
    }

    public synchronized void connect() throws IOException {
        this.connected = true;
        super.connect();
    }
   
}