001/**
002 *
003 * Copyright the original author or authors
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.jingle;
018
019import org.jivesoftware.smack.packet.IQ;
020import org.jivesoftware.smackx.jingle.packet.Jingle;
021import org.jivesoftware.smackx.jingle.packet.JingleError;
022
023/**
024 *  @author Jeff Williams
025 *  @see JingleSessionState
026 */
027public class JingleSessionStateActive extends JingleSessionState {
028    private static JingleSessionStateActive INSTANCE = null;
029
030    protected JingleSessionStateActive() {
031        // Prevent instantiation of the class.
032    }
033
034    /**
035     *  A thread-safe means of getting the one instance of this class.
036     *  @return The singleton instance of this class.
037     */
038    public synchronized static JingleSessionState getInstance() {
039        if (INSTANCE == null) {
040            INSTANCE = new JingleSessionStateActive();
041        }
042        return INSTANCE;
043    }
044
045    public void enter() {
046        // TODO Auto-generated method stub
047
048    }
049
050    public void exit() {
051        // TODO Auto-generated method stub
052
053    }
054
055    public IQ processJingle(JingleSession session, Jingle jingle, JingleActionEnum action) {
056        IQ response = null;
057
058        switch (action) {
059
060            case CONTENT_ACCEPT:
061                break;
062
063            case CONTENT_ADD:
064                break;
065
066            case CONTENT_MODIFY:
067                break;
068
069            case CONTENT_REMOVE:
070                break;
071
072            case SESSION_INFO:
073                break;
074
075            case SESSION_TERMINATE:
076                receiveSessionTerminateAction(session, jingle);
077                break;
078
079            case TRANSPORT_INFO:
080                break;
081
082            default:
083                // Anything other action is an error.
084                response = session.createJingleError(jingle, JingleError.OUT_OF_ORDER);
085                break;
086        }
087        return response;
088    }
089    
090    /**
091     * Receive and process the <session-terminate> action.
092     */
093    private IQ receiveSessionTerminateAction(JingleSession session, Jingle jingle) {
094
095        // According to XEP-166 the only thing we can do is ack.
096        IQ response = session.createAck(jingle);
097
098        try {
099            session.terminate("Closed remotely");
100        } catch (Exception e) {
101            e.printStackTrace();
102        }
103
104        return response;
105    }
106    
107}