/*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.mobicents.servlet.sip.core.dispatchers;
import javax.sip.ServerTransaction;
import javax.sip.SipProvider;
import javax.sip.message.Request;
import javax.sip.message.Response;
import org.apache.log4j.Logger;
import org.mobicents.servlet.sip.message.SipServletMessageImpl;
import org.mobicents.servlet.sip.message.SipServletRequestImpl;
/**
* Generic class that allows async execution of tasks in one of the executors depending
* on what session isolation you need. Error handling is also done here.
*
* @author Vladimir Ralev
*
*/
public abstract class DispatchTask implements Runnable {
private static transient Logger logger = Logger.getLogger(DispatchTask.class);
protected SipServletMessageImpl sipServletMessage;
protected SipProvider sipProvider;
public DispatchTask(SipServletMessageImpl sipServletMessage, SipProvider sipProvider) {
this.sipProvider = sipProvider;
this.sipServletMessage = sipServletMessage;
}
abstract public void dispatch() throws DispatcherException;
public void run() {
dispatchAndHandleExceptions();
}
public void dispatchAndHandleExceptions () {
try {
dispatch();
} catch (Throwable t) {
logger.error("Unexpected exception while processing message " + sipServletMessage, t);
if(sipServletMessage instanceof SipServletRequestImpl) {
SipServletRequestImpl sipServletRequest = (SipServletRequestImpl) sipServletMessage;
if(!Request.ACK.equalsIgnoreCase(sipServletRequest.getMethod()) ||
!Request.PRACK.equalsIgnoreCase(sipServletRequest.getMethod())) {
MessageDispatcher.sendErrorResponse(Response.SERVER_INTERNAL_ERROR, (ServerTransaction) sipServletRequest.getTransaction(), (Request) sipServletRequest.getMessage(), sipProvider);
}
}
}
}
}