com.bt.aloha.batchtest.ultramonkey.SyncServiceImpl.java Source code

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Here is the source code for com.bt.aloha.batchtest.ultramonkey.SyncServiceImpl.java

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/*
 * Aloha Open Source SIP Application Server- https://trac.osmosoft.com/Aloha
 *
 * Copyright (c) 2008, British Telecommunications plc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 3.0 of the License, or (at your option) any later
 * version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

package com.bt.aloha.batchtest.ultramonkey;

import java.util.Hashtable;
import java.util.Map;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.bt.aloha.call.CallListener;
import com.bt.aloha.call.event.AbstractCallEvent;
import com.bt.aloha.call.event.CallConnectedEvent;
import com.bt.aloha.call.event.CallConnectionFailedEvent;
import com.bt.aloha.call.event.CallDisconnectedEvent;
import com.bt.aloha.call.event.CallTerminatedEvent;
import com.bt.aloha.call.event.CallTerminationFailedEvent;

public class SyncServiceImpl extends ServiceImpl implements CallListener {
    private static int TIMEOUT = 30; // seconds
    private static Log LOG = LogFactory.getLog(SyncServiceImpl.class);
    private Object makeCallLock = new Object();
    private Object terminateCallLock = new Object();
    private Map<String, Semaphore> callConnectedSemaphores = new Hashtable<String, Semaphore>();
    private Map<String, Semaphore> callTerminatedSemaphores = new Hashtable<String, Semaphore>();

    @Override
    public String makeCall(String caller, String callee) {
        String callId = null;
        synchronized (makeCallLock) {
            callId = super.makeCall(caller, callee);
            callConnectedSemaphores.put(callId, new Semaphore(0));
        }
        if (waitForCallConnectedEvent(callId)) {
            return callId;
        }
        throw new ServiceException("No call connected event received for callId " + callId);
    }

    @Override
    public void terminateCall(String callId) {
        synchronized (terminateCallLock) {
            super.terminateCall(callId);
            callTerminatedSemaphores.put(callId, new Semaphore(0));
        }
        if (waitForCallTerminatedEvent(callId)) {
            return;
        }
        throw new ServiceException("No call terminated event received for callId " + callId);
    }

    private boolean waitForCallConnectedEvent(String callId) {
        try {
            if (callConnectedSemaphores.get(callId).tryAcquire(TIMEOUT, TimeUnit.SECONDS)) {
                callConnectedSemaphores.remove(callId);
                return true;
            }
            return false;
        } catch (InterruptedException e) {
            throw new ServiceException("Timeout occurred while waiting for call event on callId " + callId, e);
        }
    }

    private boolean waitForCallTerminatedEvent(String callId) {
        try {
            if (callTerminatedSemaphores.get(callId).tryAcquire(TIMEOUT, TimeUnit.SECONDS)) {
                callTerminatedSemaphores.remove(callId);
                return true;
            }
            return false;
        } catch (InterruptedException e) {
            throw new ServiceException("Timeout occurred while waiting for call event on callId " + callId, e);
        }
    }

    private void onCallEvent(AbstractCallEvent event) {
        LOG.debug(String.format("%s : %s", event.getClass().getSimpleName(), event.getCallId()));
        String callId = event.getCallId();
        if ((event instanceof CallConnectedEvent)) {
            synchronized (makeCallLock) {
                if (callConnectedSemaphores.containsKey(callId)) {
                    callConnectedSemaphores.get(callId).release();
                }
            }
        }
        if ((event instanceof CallTerminatedEvent)) {
            synchronized (terminateCallLock) {
                if (callTerminatedSemaphores.containsKey(callId)) {
                    callTerminatedSemaphores.get(callId).release();
                }
            }
        }
    }

    public void onCallConnected(CallConnectedEvent arg0) {
        onCallEvent(arg0);
    }

    public void onCallConnectionFailed(CallConnectionFailedEvent arg0) {
        onCallEvent(arg0);
    }

    public void onCallDisconnected(CallDisconnectedEvent arg0) {
        onCallEvent(arg0);
    }

    public void onCallTerminated(CallTerminatedEvent arg0) {
        onCallEvent(arg0);
    }

    public void onCallTerminationFailed(CallTerminationFailedEvent arg0) {
        onCallEvent(arg0);
    }
}