com.brienwheeler.lib.io.TestListener.java Source code

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Here is the source code for com.brienwheeler.lib.io.TestListener.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2013 Brien L. Wheeler (brienwheeler@yahoo.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.brienwheeler.lib.io;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

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

public class TestListener {
    private static final Log log = LogFactory.getLog(TestListener.class);

    private BufferedReader reader;
    private ServerSocket listenSocket;
    private final int listenPort;
    private Socket clientSocket;

    public TestListener() throws IOException {
        openServerSocket(0);
        listenPort = listenSocket.getLocalPort();
    }

    public int getListenPort() {
        return listenPort;
    }

    public void accept() throws IOException {
        clientSocket = listenSocket.accept();
        reader = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
    }

    public String readLine() throws IOException {
        return reader.readLine();
    }

    public void closeClient() {
        if (reader != null) {
            try {
                reader.close();
            } catch (Exception e) {
                log.error(e);
            }
            reader = null;
        }
        if (clientSocket != null) {
            try {
                clientSocket.close();
            } catch (Exception e) {
                log.error(e);
            }
            clientSocket = null;
        }
    }

    public void closeServer() {
        if (listenSocket != null) {
            try {
                listenSocket.close();
            } catch (Exception e) {
                log.error(e);
            }
            listenSocket = null;
        }
    }

    public void close() {
        closeClient();
        closeServer();
    }

    public void reopen() throws IOException {
        openServerSocket(listenPort);
    }

    private void openServerSocket(int port) throws IOException {
        listenSocket = new ServerSocket(port);
        listenSocket.setReuseAddress(true);
    }
}