mirror of
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856 lines
23 KiB
Java
856 lines
23 KiB
Java
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/**
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* $RCSfile$
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* $Revision$
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* $Date$
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*
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* Copyright (C) 2002-2006 Jive Software. All rights reserved.
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* ====================================================================
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* The Jive Software License (based on Apache Software License, Version 1.1)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by
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* Jive Software (http://www.jivesoftware.com)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Smack" and "Jive Software" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please
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* contact webmaster@jivesoftware.com.
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*
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* 5. Products derived from this software may not be called "Smack",
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* nor may "Smack" appear in their name, without prior written
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* permission of Jive Software.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*/
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package org.jivesoftware.smackx.jingle.nat;
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import org.jivesoftware.smack.XMPPConnection;
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import java.net.InetAddress;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Transport candidate.
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*
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* A candidate represents the possible transport for data interchange between
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* the two endpoints.
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*
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* @author Thiago Camargo
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* @author Alvaro Saurin
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*/
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public abstract class TransportCandidate {
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private String name;
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private String ip; // IP address
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private int port; // Port to use, or 0 for any port
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private String localIp;
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private int generation;
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protected String password;
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private String sessionId;
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private XMPPConnection connection;
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private TransportCandidate symmetric;
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// Listeners for events
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private final List<TransportResolverListener.Checker> listeners = new ArrayList();
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public String getIp() {
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return ip;
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}
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/**
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* Set the IP address.
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*
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* @param ip the IP address
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*/
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public void setIp(String ip) {
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this.ip = ip;
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}
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/**
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* Get local IP to bind to this candidate
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*
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* @return
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*/
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public String getLocalIp() {
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return localIp == null ? ip : localIp;
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}
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/**
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* Set local IP to bind to this candidate
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*
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* @param localIp
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*/
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public void setLocalIp(String localIp) {
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this.localIp = localIp;
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}
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/**
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* Get the symetric candidate for this candidate if it exists.
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*
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* @return
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*/
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public TransportCandidate getSymmetric() {
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return symmetric;
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}
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/**
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* Set the symetric candidate for this candidate.
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*
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* @param symetric
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*/
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public void setSymmetric(TransportCandidate symetric) {
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this.symmetric = symetric;
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}
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/**
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* Get the password used by ICE or relayed candidate
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*
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* @return a password
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*/
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public String getPassword() {
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return password;
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}
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/**
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* Set the password used by ICE or relayed candidate
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*
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* @param password a password
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*/
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public void setPassword(String password) {
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this.password = password;
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}
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/**
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* Get the XMPPConnection use to send or receive this candidate
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*
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* @return
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*/
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public XMPPConnection getConnection() {
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return connection;
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}
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/**
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* Set the XMPPConnection use to send or receive this candidate
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*
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* @param connection
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*/
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public void setConnection(XMPPConnection connection) {
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this.connection = connection;
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}
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/**
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* Get the jingle<EFBFBD>s sessionId that is using this candidate
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*
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* @return
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*/
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public String getSessionId() {
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return sessionId;
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}
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/**
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* Set the jingle<EFBFBD>s sessionId that is using this candidate
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*
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* @param sessionId
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*/
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public void setSessionId(String sessionId) {
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this.sessionId = sessionId;
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}
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/**
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* Empty constructor
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*/
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public TransportCandidate() {
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this(null, 0, 0);
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}
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/**
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* Constructor with IP address and port
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*
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* @param ip The IP address.
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* @param port The port number.
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*/
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public TransportCandidate(String ip, int port) {
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this(ip, port, 0);
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}
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/**
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* Constructor with IP address and port
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*
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* @param ip The IP address.
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* @param port The port number.
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* @param generation The generation
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*/
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public TransportCandidate(String ip, int port, int generation) {
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this.ip = ip;
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this.port = port;
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this.generation = generation;
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}
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/**
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* Return true if the candidate is not valid.
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*
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* @return true if the candidate is null.
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*/
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public boolean isNull() {
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if (ip == null) {
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return true;
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} else if (ip.length() == 0) {
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return true;
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} else if (port < 0) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Get the port, or 0 for any port.
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*
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* @return the port or 0
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*/
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public int getPort() {
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return port;
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}
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/**
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* Set the port, using 0 for any port
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*
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* @param port the port
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*/
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public void setPort(int port) {
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this.port = port;
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}
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/**
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* Get the generation for a transportElement definition
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*
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* @return the generation
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*/
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public int getGeneration() {
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return generation;
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}
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/**
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* Set the generation for a transportElement definition.
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*
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* @param generation the generation number
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*/
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public void setGeneration(int generation) {
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this.generation = generation;
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}
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/**
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* Get the name used for identifying this transportElement method (optional)
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*
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* @return a name used for identifying this transportElement (ie,
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* "myrtpvoice1")
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*/
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public String getName() {
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return name;
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}
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/**
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* Set a name for identifying this transportElement.
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*
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* @param name the name used for the transportElement
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*/
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public void setName(String name) {
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this.name = name;
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}
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/*
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* (non-Javadoc)
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*
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* @see java.lang.Object#equals(java.lang.Object)
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*/
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj == null) {
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return false;
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}
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if (getClass() != obj.getClass()) {
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return false;
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}
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final TransportCandidate other = (TransportCandidate) obj;
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if (generation != other.generation) {
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return false;
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}
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if (getIp() == null) {
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if (other.getIp() != null) {
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return false;
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}
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} else if (!getIp().equals(other.getIp())) {
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return false;
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}
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if (getName() == null) {
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if (other.getName() != null) {
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return false;
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}
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} else if (!getName().equals(other.getName())) {
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return false;
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}
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if (getPort() != other.getPort()) {
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return false;
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}
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return true;
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}
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/**
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* Check if a transport candidate is usable. The transport resolver should
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* check if the transport candidate the other endpoint has provided is
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* usable.
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* <p/>
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* This method provides a basic check where it sends a "ping" to the remote
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* address provided in the candidate. If the "ping" succedess, the candidate
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* is accepted. Subclasses should provide better methods if they can...
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*/
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public void check() {
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//TODO candidate is being checked trigger
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//candidatesChecking.add(cand);
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Thread checkThread = new Thread(new Runnable() {
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public void run() {
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boolean isUsable;
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InetAddress candAddress;
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try {
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candAddress = InetAddress.getByName(getIp());
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isUsable = true;//candAddress.isReachable(CHECK_TIMEOUT);
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} catch (Exception e) {
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isUsable = false;
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}
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triggerCandidateChecked(isUsable);
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//TODO candidate is being checked trigger
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//candidatesChecking.remove(cand);
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}
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}, "Transport candidate check");
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checkThread.setName("Transport candidate test");
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checkThread.start();
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}
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/**
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* Trigger a new candidate checked event.
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*
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* @param result The result.
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*/
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private void triggerCandidateChecked(boolean result) {
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for (TransportResolverListener.Checker trl : getListenersList()) {
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trl.candidateChecked(this, result);
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}
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}
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/**
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* Get the list of listeners
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*
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* @return the list of listeners
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*/
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public List<TransportResolverListener.Checker> getListenersList() {
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synchronized (listeners) {
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return new ArrayList(listeners);
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}
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}
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/**
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* Add a transport resolver listener.
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*
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* @param li The transport resolver listener to be added.
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*/
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public void addListener(TransportResolverListener.Checker li) {
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synchronized (listeners) {
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listeners.add(li);
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}
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}
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/**
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* Fixed transport candidate
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*/
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public static class Fixed extends TransportCandidate {
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public Fixed() {
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super();
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}
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/**
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* Constructor with IP address and port
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*
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* @param ip The IP address.
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* @param port The port number.
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*/
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public Fixed(String ip, int port) {
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super(ip, port);
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}
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/**
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* Constructor with IP address and port
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*
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* @param ip The IP address.
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* @param port The port number.
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* @param generation The generation
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*/
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public Fixed(String ip, int port, int generation) {
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super(ip, port, generation);
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}
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}
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/**
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* Ice candidate.
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*/
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public static class Ice extends TransportCandidate implements Comparable {
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private String id; // An identification
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private String username;
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private int preference;
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private Protocol proto;
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private Channel channel;
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private int network;
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public Ice() {
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super();
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}
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/**
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* Constructor with the basic elements of a transport definition.
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*
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* @param ip the IP address to use as a local address
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* @param generation used to keep track of the candidates
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* @param network used for diagnostics (used when the machine has
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* several NICs)
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* @param password user name, as it is used in ICE
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* @param port the port at the candidate IP address
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* @param username user name, as it is used in ICE
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* @param preference preference for this transportElement, as it is used
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* in ICE
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*/
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public Ice(String ip, int generation, int network,
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String password, int port, String username,
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int preference) {
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super(ip, port, generation);
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proto = Protocol.UDP;
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channel = Channel.MYRTPVOICE;
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this.network = network;
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this.password = password;
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this.username = username;
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this.preference = preference;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Get the ID
|
|||
|
*
|
|||
|
* @return the id
|
|||
|
*/
|
|||
|
public String getId() {
|
|||
|
return id;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the ID
|
|||
|
*
|
|||
|
* @param id the id to set
|
|||
|
*/
|
|||
|
public void setId(String id) {
|
|||
|
this.id = id;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Get the protocol used for the transmission
|
|||
|
*
|
|||
|
* @return the protocol used for transmission
|
|||
|
*/
|
|||
|
public Protocol getProto() {
|
|||
|
return proto;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the protocol for the transmission
|
|||
|
*
|
|||
|
* @param proto the protocol to use
|
|||
|
*/
|
|||
|
public void setProto(Protocol proto) {
|
|||
|
this.proto = proto;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Get the network interface used for this connection
|
|||
|
*
|
|||
|
* @return the interface number
|
|||
|
*/
|
|||
|
public int getNetwork() {
|
|||
|
return network;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the interface for this connection
|
|||
|
*
|
|||
|
* @param network the interface number
|
|||
|
*/
|
|||
|
public void setNetwork(int network) {
|
|||
|
this.network = network;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Get the username for this transportElement in ICE
|
|||
|
*
|
|||
|
* @return a username string
|
|||
|
*/
|
|||
|
public String getUsername() {
|
|||
|
return username;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Get the channel
|
|||
|
*
|
|||
|
* @return the channel associated
|
|||
|
*/
|
|||
|
public Channel getChannel() {
|
|||
|
return channel;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the channel for this transportElement
|
|||
|
*
|
|||
|
* @param channel the new channel
|
|||
|
*/
|
|||
|
public void setChannel(Channel channel) {
|
|||
|
this.channel = channel;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the username for this transportElement in ICE
|
|||
|
*
|
|||
|
* @param username the username used in ICE
|
|||
|
*/
|
|||
|
public void setUsername(String username) {
|
|||
|
this.username = username;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Get the preference number for this transportElement
|
|||
|
*
|
|||
|
* @return the preference for this transportElement
|
|||
|
*/
|
|||
|
public int getPreference() {
|
|||
|
return preference;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Set the preference order for this transportElement
|
|||
|
*
|
|||
|
* @param preference a number identifying the preference (as defined in
|
|||
|
* ICE)
|
|||
|
*/
|
|||
|
public void setPreference(int preference) {
|
|||
|
this.preference = preference;
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* (non-Javadoc)
|
|||
|
*
|
|||
|
* @see java.lang.Object#equals(java.lang.Object)
|
|||
|
*/
|
|||
|
public boolean equals(Object obj) {
|
|||
|
if (this == obj) {
|
|||
|
return true;
|
|||
|
}
|
|||
|
if (!super.equals(obj)) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getClass() != obj.getClass()) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
|
|||
|
final Ice other = (Ice) obj;
|
|||
|
if (getChannel() == null) {
|
|||
|
if (other.getChannel() != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!getChannel().equals(other.getChannel())) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getId() == null) {
|
|||
|
if (other.getId() != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!getId().equals(other.getId())) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getNetwork() != other.getNetwork()) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getPassword() == null) {
|
|||
|
if (other.getPassword() != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!getPassword().equals(other.password)) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getPreference() != other.getPreference()) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getProto() == null) {
|
|||
|
if (other.getProto() != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!getProto().equals(other.getProto())) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getUsername() == null) {
|
|||
|
if (other.getUsername() != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!getUsername().equals(other.getUsername())) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
return true;
|
|||
|
}
|
|||
|
|
|||
|
public boolean isNull() {
|
|||
|
if (super.isNull()) {
|
|||
|
return true;
|
|||
|
} else if (getProto().isNull()) {
|
|||
|
return true;
|
|||
|
} else if (getChannel().isNull()) {
|
|||
|
return true;
|
|||
|
}
|
|||
|
return false;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Compare the to other Transport candidate.
|
|||
|
*
|
|||
|
* @param arg another Transport candidate
|
|||
|
* @return a negative integer, zero, or a positive integer as this
|
|||
|
* object is less than, equal to, or greater than the specified
|
|||
|
* object
|
|||
|
*/
|
|||
|
public int compareTo(Object arg) {
|
|||
|
if (arg instanceof TransportCandidate.Ice) {
|
|||
|
TransportCandidate.Ice tc = (TransportCandidate.Ice) arg;
|
|||
|
if (getPreference() < tc.getPreference()) {
|
|||
|
return -1;
|
|||
|
} else if (getPreference() > tc.getPreference()) {
|
|||
|
return 1;
|
|||
|
}
|
|||
|
}
|
|||
|
return 0;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Type-safe enum for the transportElement protocol
|
|||
|
*/
|
|||
|
public static class Protocol {
|
|||
|
|
|||
|
public static final Protocol UDP = new Protocol("udp");
|
|||
|
|
|||
|
public static final Protocol TCP = new Protocol("tcp");
|
|||
|
|
|||
|
public static final Protocol TCPACT = new Protocol("tcp-act");
|
|||
|
|
|||
|
public static final Protocol TCPPASS = new Protocol("tcp-pass");
|
|||
|
|
|||
|
public static final Protocol SSLTCP = new Protocol("ssltcp");
|
|||
|
|
|||
|
private String value;
|
|||
|
|
|||
|
public Protocol(String value) {
|
|||
|
this.value = value;
|
|||
|
}
|
|||
|
|
|||
|
public String toString() {
|
|||
|
return value;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Returns the Protocol constant associated with the String value.
|
|||
|
*/
|
|||
|
public static Protocol fromString(String value) {
|
|||
|
if (value == null) {
|
|||
|
return UDP;
|
|||
|
}
|
|||
|
value = value.toLowerCase();
|
|||
|
if (value.equals("udp")) {
|
|||
|
return UDP;
|
|||
|
} else if (value.equals("tcp")) {
|
|||
|
return TCP;
|
|||
|
} else if (value.equals("tcp-act")) {
|
|||
|
return TCPACT;
|
|||
|
} else if (value.equals("tcp-pass")) {
|
|||
|
return TCPPASS;
|
|||
|
} else if (value.equals("ssltcp")) {
|
|||
|
return SSLTCP;
|
|||
|
} else {
|
|||
|
return UDP;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* (non-Javadoc)
|
|||
|
*
|
|||
|
* @see java.lang.Object#equals(java.lang.Object)
|
|||
|
*/
|
|||
|
public boolean equals(Object obj) {
|
|||
|
if (this == obj) {
|
|||
|
return true;
|
|||
|
}
|
|||
|
if (obj == null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getClass() != obj.getClass()) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
final Protocol other = (Protocol) obj;
|
|||
|
if (value == null) {
|
|||
|
if (other.value != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!value.equals(other.value)) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
return true;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Return true if the protocol is not valid.
|
|||
|
*
|
|||
|
* @return true if the protocol is null
|
|||
|
*/
|
|||
|
public boolean isNull() {
|
|||
|
if (value == null) {
|
|||
|
return true;
|
|||
|
} else if (value.length() == 0) {
|
|||
|
return true;
|
|||
|
} else {
|
|||
|
return false;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Type-safe enum for the transportElement channel
|
|||
|
*/
|
|||
|
public static class Channel {
|
|||
|
|
|||
|
public static final Channel MYRTPVOICE = new Channel("myrtpvoice");
|
|||
|
|
|||
|
public static final Channel MYRTCPVOICE = new Channel("myrtcpvoice");
|
|||
|
|
|||
|
private String value;
|
|||
|
|
|||
|
public Channel(String value) {
|
|||
|
this.value = value;
|
|||
|
}
|
|||
|
|
|||
|
public String toString() {
|
|||
|
return value;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Returns the MediaChannel constant associated with the String value.
|
|||
|
*/
|
|||
|
public static Channel fromString(String value) {
|
|||
|
if (value == null) {
|
|||
|
return MYRTPVOICE;
|
|||
|
}
|
|||
|
value = value.toLowerCase();
|
|||
|
if (value.equals("myrtpvoice")) {
|
|||
|
return MYRTPVOICE;
|
|||
|
} else if (value.equals("tcp")) {
|
|||
|
return MYRTCPVOICE;
|
|||
|
} else {
|
|||
|
return MYRTPVOICE;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* (non-Javadoc)
|
|||
|
*
|
|||
|
* @see java.lang.Object#equals(java.lang.Object)
|
|||
|
*/
|
|||
|
public boolean equals(Object obj) {
|
|||
|
if (this == obj) {
|
|||
|
return true;
|
|||
|
}
|
|||
|
if (obj == null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
if (getClass() != obj.getClass()) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
final Channel other = (Channel) obj;
|
|||
|
if (value == null) {
|
|||
|
if (other.value != null) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
} else if (!value.equals(other.value)) {
|
|||
|
return false;
|
|||
|
}
|
|||
|
return true;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Return true if the channel is not valid.
|
|||
|
*
|
|||
|
* @return true if the channel is null
|
|||
|
*/
|
|||
|
public boolean isNull() {
|
|||
|
if (value == null) {
|
|||
|
return true;
|
|||
|
} else if (value.length() == 0) {
|
|||
|
return true;
|
|||
|
} else {
|
|||
|
return false;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|