Java HTTP Port Find isBound(int port)

Description

is Bound

License

Apache License

Declaration

public static boolean isBound(int port) 

Method Source Code

//package com.java2s;
/*/*from w  ww.j  a va2 s.c  om*/
 * Copyright 2009-2012 Michael Tamm
 *
 * 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.ConnectException;

import java.net.Socket;
import java.net.UnknownHostException;

public class Main {
    public static boolean isBound(int port) {
        Socket socket = null;
        try {
            socket = new Socket("localhost", port);
            socket.setReuseAddress(true);
            return true;
        } catch (UnknownHostException e) {
            throw new RuntimeException(e);
        } catch (ConnectException ignored) {
            return false;
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            if (socket != null) {
                try {
                    socket.close();
                } catch (IOException ignored) {
                }
            }
        }
    }
}

Related

1. isAlive(String hostname, int port, int retries)
2. isAvailablePort(int port)
3. isBindable(int port)
4. isBindedPort(String host, int port)
5. isBound(int port)
6. isConnectionAlive(String protocol, String host, int port)
7. isFreePort(int portNumber)
8. isFreeTCPPort(final int port)
9. isHostAvailable(final String host, final int port)