org.wso2.carbon.automation.test.utils.tcpmon.client.SocketWaiter.java Source code

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Here is the source code for org.wso2.carbon.automation.test.utils.tcpmon.client.SocketWaiter.java

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/*
*Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
*WSO2 Inc. 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.wso2.carbon.automation.test.utils.tcpmon.client;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.net.ServerSocket;
import java.net.Socket;

/**
 * wait for incoming connections, spawn a connection thread when
 * stuff comes in.
 */
class SocketWaiter extends Thread {

    private static final Log log = LogFactory.getLog(SocketWaiter.class);

    private ServerSocket sSocket = null;

    private TCPMonListener listener;

    private int listenPort;

    private boolean pleaseStop = false;

    public SocketWaiter(TCPMonListener listener, int listenPort) {
        this.listener = listener;
        this.listenPort = listenPort;
        start();
    }

    /**
     * Method run
     */
    public void run() {
        try {
            log.info("waiting for connection....");
            sSocket = new ServerSocket(listenPort);
            for (;;) {
                Socket inSocket = sSocket.accept();
                if (pleaseStop) {
                    break;
                }
                new Connection(listener, inSocket);
                inSocket = null;
            }
        } catch (Exception exp) {
            if (!"socket closed".equals(exp.getMessage())) {
                listener.stop();
            }
        }
    }

    /**
     * force a halt by connecting to self and then closing the server socket
     */
    public void halt() {
        try {
            pleaseStop = true;
            new Socket("127.0.0.1", listenPort);
            if (sSocket != null) {
                sSocket.close();
            }
        } catch (Exception e) {
            log.error("Error while closing socket : " + e.getMessage());
        }
    }
}