StopUtils.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.
 */
package org.huahinframework.emanager.util;

import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;

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

/**
 *
 */
public class StopUtils {
    private static final Log log = LogFactory.getLog(StopUtils.class);

    /**
     * @param port
     * @param msg
     */
    public static void stop(int port, String msg) {
        try {
            InetSocketAddress socketAddress =
                new InetSocketAddress("localhost", port);
            Socket socket = new Socket();
            socket.connect(socketAddress, 10000);

            InetAddress inadr = socket.getInetAddress();
            if (inadr == null) {
                log.error("connect error: " + "localhost:" + port);
                return;
            }

            PrintWriter writer = new PrintWriter(socket.getOutputStream());
            writer.println(msg);

            writer.close();
            socket.close();
        } catch (Exception e) {
            log.error(e);
            e.printStackTrace();
        }
    }
}