opendaylight/md-sal/sal-restconf-broker/src/main/java/org/opendaylight/controller/sal/restconf/broker/tools/RemoteStreamTools.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.sal.restconf.broker.tools;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import java.util.HashMap;
  12 import java.util.Iterator;
  13 import java.util.List;
  14 import java.util.Map;
  15 import java.util.Set;
  16 import java.util.concurrent.ExecutionException;
  17 import java.util.concurrent.Future;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.remote.rev140114.CreateNotificationStreamInputBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.remote.rev140114.CreateNotificationStreamOutput;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.remote.rev140114.QName;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.remote.rev140114.SalRemoteService;
  22 import org.opendaylight.yangtools.restconf.client.api.RestconfClientContext;
  23 import org.opendaylight.yangtools.restconf.client.api.event.EventStreamInfo;
  24 import org.opendaylight.yangtools.yang.common.RpcResult;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 public class RemoteStreamTools {
  29     private static final Logger logger = LoggerFactory.getLogger(RemoteStreamTools.class.toString());
  30
  31     public static String createNotificationStream(SalRemoteService salRemoteService,List<QName> notifications){
  32         CreateNotificationStreamInputBuilder notificationStreamInputBuilder = new CreateNotificationStreamInputBuilder();
  33
  34         if (null == notifications){
  35             notificationStreamInputBuilder.setNotifications(notifications);
  36         }
  37
  38         Future<RpcResult<CreateNotificationStreamOutput>> notificationStream = salRemoteService.createNotificationStream(notificationStreamInputBuilder.build());
  39
  40         String nofiticationStreamIdentifier = "";
  41         try {
  42             if (notificationStream.get().isSuccessful()){
  43                 nofiticationStreamIdentifier  = notificationStream.get().getResult().getNotificationStreamIdentifier();
  44             }
  45         } catch (InterruptedException e) {
  46             logger.trace("Interrupted while resolving notification stream identifier due to {}",e);
  47         } catch (ExecutionException e) {
  48             logger.trace("Execution exception while resolving notification stream identifier due to {}",e);
  49         }
  50         return nofiticationStreamIdentifier;
  51     }
  52
  53     public static Map<String,EventStreamInfo> createEventStream(RestconfClientContext restconfClientContext, String desiredStreamName){
  54         ListenableFuture<Set<EventStreamInfo>> availableEventStreams = restconfClientContext.getAvailableEventStreams();
  55         final Map<String,EventStreamInfo> desiredEventStream = new HashMap<String,EventStreamInfo>();
  56
  57         try {
  58             Iterator<EventStreamInfo> it = availableEventStreams.get().iterator();
  59             while (it.hasNext()){
  60                 if (it.next().getIdentifier().equals(desiredStreamName)){
  61                     desiredEventStream.put(desiredStreamName,it.next());
  62                 }
  63             }
  64         } catch (InterruptedException e) {
  65             logger.trace("Resolving of event stream interrupted due to  {}",e);
  66         } catch (ExecutionException e) {
  67             logger.trace("Resolving of event stream failed due to {}",e);
  68         }
  69         return desiredEventStream;
  70     }
  71 }