/*
* Copyright (c) 2005-2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except
* in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.wso2.carbon.event.output.adapter.websocket.local.internal;
import org.wso2.carbon.context.PrivilegedCarbonContext;
import org.wso2.carbon.event.output.adapter.websocket.local.WebsocketLocalOutputCallbackRegisterService;
import javax.websocket.Session;
import java.util.Iterator;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
public class WebsocketLocalOutputCallbackRegisterServiceImpl implements WebsocketLocalOutputCallbackRegisterService {
private ConcurrentHashMap<Integer, ConcurrentHashMap<String, CopyOnWriteArrayList<Session>>> outputEventAdaptorSessionMap;
public WebsocketLocalOutputCallbackRegisterServiceImpl(){
outputEventAdaptorSessionMap =
new ConcurrentHashMap<Integer, ConcurrentHashMap<String, CopyOnWriteArrayList<Session>>>();
}
public void subscribe(String adaptorName, Session session) {
int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
ConcurrentHashMap<String, CopyOnWriteArrayList<Session>> tenantSpecificAdaptorMap = outputEventAdaptorSessionMap.get(tenantId);
if (tenantSpecificAdaptorMap == null) {
tenantSpecificAdaptorMap = new ConcurrentHashMap<String, CopyOnWriteArrayList<Session>>();
if (null != outputEventAdaptorSessionMap.putIfAbsent(tenantId, tenantSpecificAdaptorMap)){
tenantSpecificAdaptorMap = outputEventAdaptorSessionMap.get(tenantId);
}
}
CopyOnWriteArrayList<Session> adapterSpecificSessions = tenantSpecificAdaptorMap.get(adaptorName);
if (adapterSpecificSessions == null){
adapterSpecificSessions = new CopyOnWriteArrayList<Session>();
if (null != tenantSpecificAdaptorMap.putIfAbsent(adaptorName,adapterSpecificSessions)){
adapterSpecificSessions = tenantSpecificAdaptorMap.get(adaptorName);
}
}
adapterSpecificSessions.add(session);
}
public CopyOnWriteArrayList<Session> getSessions(int tenantId, String adaptorName){
ConcurrentHashMap<String, CopyOnWriteArrayList<Session>> tenantSpecificAdaptorMap = outputEventAdaptorSessionMap.get(tenantId);
if (tenantSpecificAdaptorMap != null) {
CopyOnWriteArrayList<Session> adapterSpecificSessions = tenantSpecificAdaptorMap.get(adaptorName);
return adapterSpecificSessions;
}
return null;
}
public void unsubscribe(String adaptorName, Session session) {
int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
ConcurrentHashMap<String, CopyOnWriteArrayList<Session>> tenantSpecificAdaptorMap = outputEventAdaptorSessionMap.get(tenantId);
if (tenantSpecificAdaptorMap != null) {
CopyOnWriteArrayList<Session> adapterSpecificSessions = tenantSpecificAdaptorMap.get(adaptorName);
if (adapterSpecificSessions != null) {
Session sessionToRemove = null;
for (Iterator<Session> iterator = adapterSpecificSessions.iterator(); iterator.hasNext(); ) {
Session thisSession = iterator.next();
if (session.getId().equals(thisSession.getId())) {
sessionToRemove = session;
break;
}
}
if (sessionToRemove != null) {
adapterSpecificSessions.remove(sessionToRemove);
}
}
}
}
}