Java HTTP Port Find getPort(int port)

Description

This method checks whether supplied port is free.

License

Open Source License

Declaration

private static int getPort(int port) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   w w  w  .  j av a 2  s.  c o  m*/
 * Copyright 2005 Sun Microsystems, Inc.
 * Copyright 2005 GigaSpaces, Inc.
 *
 * Licensed 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 java.io.IOException;

import java.net.ServerSocket;

public class Main {
    /**
     * This method checks whether supplied port is free.
     *
     * If port 0 returns an anonymous port.
     */
    private static int getPort(int port) throws IOException {
        ServerSocket socket = null;

        try {
            socket = new ServerSocket(port);
            return socket.getLocalPort();
        } finally {
            if (socket != null) {
                try {
                    socket.close();
                } catch (IOException ex) {
                    /* don't care */ }
            }
        }
    }
}

Related

1. getNextAvailablePort(int port)
2. getNodeName(final String managementServerHostName, final int managementPort)
3. getNonPrivilegedPort()
4. getOpenPort()
5. getPort(final int suggestedPort)
6. getPort(Proxy proxy)
7. getPort(String endpoint)
8. getPort(String hostAndPort)
9. getPortInRange(int minPort, int maxPort)