gerrit.onap Code Review - ccsdk/features.git/blob

   1 /*******************************************************************************
   2  * ============LICENSE_START========================================================================
   3  * ONAP : ccsdk feature sdnr wt
   4  * =================================================================================================
   5  * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
   6  * =================================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   8  * in compliance with the License. You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software distributed under the License
  13  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  14  * or implied. See the License for the specific language governing permissions and limitations under
  15  * the License.
  16  * ============LICENSE_END==========================================================================
  17  ******************************************************************************/
  18 package org.onap.ccsdk.features.sdnr.wt.websocketmanager2;
  19
  20 import javax.servlet.ServletException;
  21
  22 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.RpcRegistration;
  23 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.websocketmanager.rev150105.WebsocketmanagerService;
  25 import org.osgi.service.http.HttpService;
  26 import org.osgi.service.http.NamespaceException;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class WebSocketManagerProvider extends Blueprint {
  31
  32         private static final Logger LOG = LoggerFactory.getLogger(WebSocketManagerProvider.class);
  33         private static final String APPLICATION_NAME = WebSocketManagerProvider.class.getName();
  34         private static final String ALIAS = "/websocket";
  35
  36         private WebSocketManager wsServlet = null;
  37         private RpcRegistration<WebsocketmanagerService> websocketService = null;
  38
  39         public WebSocketManagerProvider() {
  40                 LOG.info("Creating provider for {}", APPLICATION_NAME);
  41         }
  42
  43         @Override
  44         public void init() {
  45                 LOG.info("Init provider for {}", APPLICATION_NAME);
  46                 RpcProviderRegistry rpcProviderRegistry = this.getRpcProviderRegistry();
  47                 if (rpcProviderRegistry != null) {
  48                         if (wsServlet != null) {
  49                                 this.websocketService = rpcProviderRegistry.addRpcImplementation(WebsocketmanagerService.class,
  50                                                 wsServlet);
  51                         } else {
  52                                 LOG.error("wsServlet not provided");
  53                         }
  54                 } else {
  55                         LOG.error("rpcProviderRegistry not provided");
  56                 }
  57         }
  58
  59         @Override
  60         public void close() throws Exception {
  61                 LOG.info("Close provider for {}", APPLICATION_NAME);
  62                 if (websocketService != null) {
  63                         websocketService.close();
  64                 }
  65         }
  66
  67         public void onUnbindService(HttpService httpService) {
  68                 httpService.unregister(ALIAS);
  69                 wsServlet = null;
  70         }
  71
  72         public void onBindService(HttpService httpService) throws ServletException, NamespaceException {
  73                 if (httpService == null) {
  74                         LOG.warn("Unable to inject HttpService into DluxLoader. dlux modules won't work without httpService");
  75                 } else {
  76
  77                         wsServlet = new WebSocketManager();
  78                         httpService.registerServlet(ALIAS, wsServlet, null, null);
  79                         LOG.info("websocket servlet registered.");
  80                         if(this.websocketService==null)
  81                                 this.init();
  82                         else
  83                                 LOG.info("websocketservice already initialized");
  84                 }
  85
  86         }
  87
  88         public WebSocketManager getWsServlet() {
  89                 return wsServlet;
  90         }
  91
  92         public void setWsServlet(WebSocketManager wsServlet) {
  93                 this.wsServlet = wsServlet;
  94         }
  95 }