Java tutorial
/* * Copyright (c) 2005-2014, 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. */ import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.wso2.carbon.context.PrivilegedCarbonContext; import org.wso2.carbon.event.output.adaptor.websocket.local.WebsocketLocalOutputCallbackRegisterService; import java.util.ArrayList; import java.util.HashMap; import javax.websocket.*; import javax.websocket.server.PathParam; import javax.websocket.server.ServerEndpoint; public class TopicSubscriptionEndpoint { protected WebsocketLocalOutputCallbackRegisterService websocketLocalOutputCallbackRegisterService; private static final Log log = LogFactory.getLog(TopicSubscriptionEndpoint.class); public TopicSubscriptionEndpoint() { websocketLocalOutputCallbackRegisterService = (WebsocketLocalOutputCallbackRegisterService) PrivilegedCarbonContext .getThreadLocalCarbonContext().getOSGiService(WebsocketLocalOutputCallbackRegisterService.class); } public void onClose(Session session, CloseReason reason, String topic, String adaptorName, int tenantId) { if (log.isDebugEnabled()) { log.debug("Closing a WebSocket due to " + reason.getReasonPhrase() + ", for session ID:" + session.getId() + ", for request URI - " + session.getRequestURI()); } websocketLocalOutputCallbackRegisterService.unsubscribe(tenantId, adaptorName, topic, session); } public void onError(Session session, Throwable throwable, String topic, String adaptorName, int tenantId) { log.error("Error occurred in session ID: " + session.getId() + ", for request URI - " + session.getRequestURI() + ", " + throwable.getMessage(), throwable); websocketLocalOutputCallbackRegisterService.unsubscribe(tenantId, adaptorName, topic, session); } }