net.sourceforge.peers.sip.transport.SipTransportConnection Maven / Gradle / Ivy

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/*
    This file is part of Peers, a java SIP softphone.

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see .
    
    Copyright 2007-2013 Yohann Martineau 
 */

package net.sourceforge.peers.sip.transport;

import java.net.InetAddress;

import net.sourceforge.peers.sip.RFC3261;

public class SipTransportConnection {

	public static final int EMPTY_PORT = -1;

	private InetAddress localInetAddress;
	private int localPort = EMPTY_PORT;

	private InetAddress remoteInetAddress;
	private int remotePort = EMPTY_PORT;

	private String transport;// UDP, TCP or SCTP

	public SipTransportConnection(InetAddress localInetAddress, int localPort,
			InetAddress remoteInetAddress, int remotePort, String transport) {
		this.localInetAddress = localInetAddress;
		this.localPort = localPort;
		this.remoteInetAddress = remoteInetAddress;
		this.remotePort = remotePort;
		this.transport = transport;
	}

	@Override
	public boolean equals(Object obj) {
		if (obj.getClass() != SipTransportConnection.class) {
			return false;
		}
		SipTransportConnection other = (SipTransportConnection) obj;
		if (!transport.equalsIgnoreCase(other.transport)) {
			return false;
		}
		boolean equals = false;
		if (RFC3261.TRANSPORT_UDP.equalsIgnoreCase(transport)) {
			equals = localInetAddress.equals(other.localInetAddress)
					&& localPort == other.localPort;		
		}
		if(equals){
			if(null != remoteInetAddress){
				equals = remoteInetAddress.equals(other.remoteInetAddress)
						&& remotePort == other.remotePort;
			}
		}

		return equals;
	}

	@Override
	public String toString() {
		StringBuffer buf = new StringBuffer();
		appendInetAddress(buf, localInetAddress);
		buf.append(':');
		appendPort(buf, localPort);
		buf.append('/');
		if (!RFC3261.TRANSPORT_UDP.equalsIgnoreCase(transport)) {
			appendInetAddress(buf, remoteInetAddress);
			buf.append(':');
			appendPort(buf, remotePort);
			buf.append('/');
		}
		buf.append(transport.toUpperCase());
		return buf.toString();
	}

	private void appendInetAddress(StringBuffer buf, InetAddress inetAddress) {
		if (inetAddress != null) {
			buf.append(inetAddress.getHostAddress());
		} else {
			buf.append("-");
		}
	}

	private void appendPort(StringBuffer buf, int port) {
		if (port != EMPTY_PORT) {
			buf.append(port);
		} else {
			buf.append("-");
		}
	}

	@Override
	public int hashCode() {
		return toString().hashCode();
	}

	public InetAddress getLocalInetAddress() {
		return localInetAddress;
	}

	public int getLocalPort() {
		return localPort;
	}

	public InetAddress getRemoteInetAddress() {
		return remoteInetAddress;
	}

	public int getRemotePort() {
		return remotePort;
	}

	public String getTransport() {
		return transport;
	}

}