BEEM-newservice: src/com/beem/project/beem/utils/FreePort.java@896533b277d5 (annotated)

567 896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	1	/**
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	2	BEEM is a videoconference application on the Android Platform.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	3
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	4	Copyright (C) 2009 by Frederic-Charles Barthelery,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	5	Jean-Manuel Da Silva,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	6	Nikita Kozlov,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	7	Philippe Lago,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	8	Jean Baptiste Vergely,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	9	Vincent Véronis.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	10
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	11	This file is part of BEEM.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	12
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	13	BEEM is free software: you can redistribute it and/or modify
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	14	it under the terms of the GNU General Public License as published by
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	15	the Free Software Foundation, either version 3 of the License, or
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	16	(at your option) any later version.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	17
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	18	BEEM is distributed in the hope that it will be useful,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	19	but WITHOUT ANY WARRANTY; without even the implied warranty of
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	21	GNU General Public License for more details.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	22
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	23	You should have received a copy of the GNU General Public License
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	24	along with BEEM. If not, see <http://www.gnu.org/licenses/>.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	25
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	26	Please send bug reports with examples or suggestions to
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	27	contact@beem-project.com or http://dev.beem-project.com/
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	28
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	29	Epitech, hereby disclaims all copyright interest in the program “Beem”
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	30	written by Frederic-Charles Barthelery,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	31	Jean-Manuel Da Silva,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	32	Nikita Kozlov,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	33	Philippe Lago,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	34	Jean Baptiste Vergely,
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	35	Vincent Veronis.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	36
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	37	Nicolas Sadirac, November 26, 2009
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	38	President of Epitech.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	39
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	40	Flavien Astraud, November 26, 2009
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	41	Head of the EIP Laboratory.
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	42
896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	43	*/
358 6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	44	package com.beem.project.beem.utils;
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	45
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	46	import java.io.IOException;
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	47	import java.net.ServerSocket;
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	48
567 896533b277d5 ajout des headers Nikita Kozlov <nikita@beem-project.com> parents: 503 diff changeset	49	// TODO: Auto-generated Javadoc
358 6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	50	/**
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	51	* Utility class to get a free port.
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	52	* @author nikita
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	53	*/
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	54	public final class FreePort {
6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	55
503 93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	56	private static final int MAGIC_10 = 10;
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	57	private static final int MAGIC_10000 = 10000;
450 fe0ba62ee3ff Correction de l'ensemble des erreurs de CheckStyle. dasilvj parents: 358 diff changeset	58
503 93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	59	/**
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	60	* Private default constructor.
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	61	*/
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	62	private FreePort() {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	63	}
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	64
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	65	/**
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	66	* return a free port.
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	67	* @return free socket port.
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	68	*/
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	69	public static int getFreePort() {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	70	ServerSocket ss;
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	71	int freePort = 0;
358 6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	72
503 93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	73	for (int i = 0; i < MAGIC_10; i++) {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	74	freePort = (int) (MAGIC_10000 + Math.round(Math.random() * MAGIC_10000));
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	75	try {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	76	ss = new ServerSocket(freePort);
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	77	freePort = ss.getLocalPort();
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	78	ss.close();
358 6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	79	return freePort;
503 93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	80	} catch (IOException e) {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	81	e.printStackTrace();
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	82	}
358 6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	83	}
503 93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	84	try {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	85	ss = new ServerSocket(0);
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	86	freePort = ss.getLocalPort();
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	87	ss.close();
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	88	} catch (IOException e) {
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	89	e.printStackTrace();
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	90	}
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	91	return freePort;
93e5d2d9953f Le formatter a encore frappé. Jean-Manuel ¨dasilvj¨ Da Silva parents: 502 diff changeset	92	}
358 6b9900c70fa1 suppression de quelques warnings de checkstyle nikita@localhost.localdomain parents: diff changeset	93	}

author	Nikita Kozlov <nikita@beem-project.com>
	Fri, 04 Dec 2009 17:30:17 +0100
changeset 567	896533b277d5
parent 503	93e5d2d9953f
child 577	29ac85113420
permissions	-rw-r--r--