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/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.slee.resource.sip11;
import java.util.concurrent.ConcurrentHashMap;
import javax.sip.TimeoutEvent;
import javax.sip.message.Request;
import javax.sip.message.Response;
import javax.slee.EventTypeID;
import javax.slee.UnrecognizedEventException;
import javax.slee.facilities.EventLookupFacility;
import javax.slee.resource.FireableEventType;
import net.java.slee.resource.sip.DialogForkedEvent;
import net.java.slee.resource.sip.DialogTimeoutEvent;
/**
* Caches event IDs for the SIP RA.
*
* @author martins
*
*/
public class EventIDCache {
private static final String OUT_OF_DIALOG_REQUEST_EVENT_PREFIX = "javax.sip.message.Request.";
private static final String RESPONSE_EVENT_PREFIX = "javax.sip.message.Response.";
private static final String INDIALOG_REQUEST_EVENT_PREFIX = "javax.sip.Dialog.";
private static final String SIP_EXTENSION_REQUEST_EVENT_NAME_SUFIX = "SIP_EXTENSION";
private static final String VENDOR = "net.java.slee";
private static final String VERSION = "1.2";
private static final String TRANSACTION_TIMEOUT_EVENTNAME = "javax.sip.Timeout.TRANSACTION";
private static final String DIALOG_TIMEOUT_EVENTNAME = "javax.sip.Timeout.Dialog";
private static final String DIALOG_FORKED_EVENTNAME = "javax.sip.Dialog.FORKED";
private ConcurrentHashMap eventIds = new ConcurrentHashMap();
public EventIDCache() {
}
/**
* Retrieves the event id for a SIP Request event.
*
* @param eventLookupFacility
* @param request
* @param inDialogActivity
* if the event occurred in a dialog activity or not
* @return
*/
public FireableEventType getEventId(EventLookupFacility eventLookupFacility,
Request request, boolean inDialogActivity) {
final String requestMethod = request.getMethod();
// Cancel is always the same.
if (requestMethod.equals(Request.CANCEL))
inDialogActivity = false;
FireableEventType eventID = null;
if (inDialogActivity) {
eventID = getEventId(eventLookupFacility,
new StringBuilder(INDIALOG_REQUEST_EVENT_PREFIX).append(requestMethod).toString());
if (eventID == null) {
eventID = getEventId(eventLookupFacility,
new StringBuilder(INDIALOG_REQUEST_EVENT_PREFIX).append(SIP_EXTENSION_REQUEST_EVENT_NAME_SUFIX).toString());
}
} else {
eventID = getEventId(eventLookupFacility,
new StringBuilder(OUT_OF_DIALOG_REQUEST_EVENT_PREFIX).append(requestMethod).toString());
if (eventID == null) {
eventID = getEventId(eventLookupFacility,
new StringBuilder(OUT_OF_DIALOG_REQUEST_EVENT_PREFIX).append(SIP_EXTENSION_REQUEST_EVENT_NAME_SUFIX).toString());
}
}
return eventID;
}
/**
* Retrieves the event id for a SIP Response event.
*
* @param eventLookupFacility
* @param response
* @return
*/
public FireableEventType getEventId(EventLookupFacility eventLookupFacility,
Response response) {
String statusCodeName = null;
final int responseStatus = response.getStatusCode();
if (responseStatus == 100) {
statusCodeName = "TRYING";
} else if (100 < responseStatus && responseStatus < 200) {
statusCodeName = "PROVISIONAL";
} else if (responseStatus < 300) {
statusCodeName = "SUCCESS";
} else if (responseStatus < 400) {
statusCodeName = "REDIRECT";
} else if (responseStatus < 500) {
statusCodeName = "CLIENT_ERROR";
} else if (responseStatus < 600) {
statusCodeName = "SERVER_ERROR";
} else {
statusCodeName = "GLOBAL_FAILURE";
}
// in dialog responses use the 1.1 event id prefix
return getEventId(eventLookupFacility, new StringBuilder(RESPONSE_EVENT_PREFIX).append(statusCodeName).toString());
}
/**
* Retrieves the event id for a {@link TimeoutEvent} in a SIP Transaction.
*
* @param eventLookupFacility
* @return
*/
public FireableEventType getTransactionTimeoutEventId(
EventLookupFacility eventLookupFacility, boolean inDialog) {
return getEventId(eventLookupFacility, TRANSACTION_TIMEOUT_EVENTNAME);
}
/**
* Retrieves the event id for a {@link DialogTimeoutEvent}.
*
* @param eventLookupFacility
* @return
*/
public FireableEventType getDialogTimeoutEventId(EventLookupFacility eventLookupFacility) {
return getEventId(eventLookupFacility, DIALOG_TIMEOUT_EVENTNAME);
}
/**
* Retrieves the event id for a {@link DialogForkedEvent}.
*
* @param eventLookupFacility
* @return
*/
public FireableEventType getDialogForkEventId(EventLookupFacility eventLookupFacility) {
return getEventId(eventLookupFacility, DIALOG_FORKED_EVENTNAME);
}
private FireableEventType getEventId(EventLookupFacility eventLookupFacility,
String eventName) {
FireableEventType eventType = eventIds.get(eventName);
if (eventType == null) {
try {
eventType = eventLookupFacility.getFireableEventType(new EventTypeID(eventName,VENDOR,VERSION));
} catch (UnrecognizedEventException uee) {
// simply not found, so return null.
} catch (Throwable e) {
e.printStackTrace();
}
if (eventType != null) {
eventIds.put(eventName, eventType);
}
}
return eventType;
}
}