netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/tx/NetconfProxyDOMTransaction.java

   1 /*
   2  * Copyright (c) 2016 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
   9 package org.opendaylight.netconf.topology.singleton.impl.tx;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSystem;
  13 import akka.dispatch.OnComplete;
  14 import akka.pattern.Patterns;
  15 import com.google.common.base.Optional;
  16 import org.opendaylight.controller.config.util.xml.DocumentedException;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.netconf.topology.singleton.api.NetconfDOMTransaction;
  19 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologyUtils;
  20 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  21 import org.opendaylight.netconf.topology.singleton.messages.SubmitFailedReply;
  22 import org.opendaylight.netconf.topology.singleton.messages.transactions.CancelRequest;
  23 import org.opendaylight.netconf.topology.singleton.messages.transactions.DeleteRequest;
  24 import org.opendaylight.netconf.topology.singleton.messages.transactions.EmptyReadResponse;
  25 import org.opendaylight.netconf.topology.singleton.messages.transactions.ExistsRequest;
  26 import org.opendaylight.netconf.topology.singleton.messages.transactions.MergeRequest;
  27 import org.opendaylight.netconf.topology.singleton.messages.transactions.PutRequest;
  28 import org.opendaylight.netconf.topology.singleton.messages.transactions.ReadRequest;
  29 import org.opendaylight.netconf.topology.singleton.messages.transactions.SubmitRequest;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33 import scala.concurrent.Await;
  34 import scala.concurrent.Future;
  35 import scala.concurrent.impl.Promise.DefaultPromise;
  36
  37
  38 public class NetconfProxyDOMTransaction implements NetconfDOMTransaction {
  39
  40     private static final Logger LOG = LoggerFactory.getLogger(NetconfProxyDOMTransaction.class);
  41
  42     private final ActorSystem actorSystem;
  43     private final ActorRef masterContextRef;
  44
  45     public NetconfProxyDOMTransaction(final ActorSystem actorSystem, final ActorRef masterContextRef) {
  46         this.actorSystem = actorSystem;
  47         this.masterContextRef = masterContextRef;
  48     }
  49
  50     @Override
  51     public Future<Optional<NormalizedNodeMessage>> read(final LogicalDatastoreType store,
  52                                                         final YangInstanceIdentifier path) {
  53
  54         final Future<Object> readScalaFuture =
  55                 Patterns.ask(masterContextRef, new ReadRequest(store, path), NetconfTopologyUtils.TIMEOUT);
  56
  57         final DefaultPromise<Optional<NormalizedNodeMessage>> promise = new DefaultPromise<>();
  58
  59         readScalaFuture.onComplete(new OnComplete<Object>() {
  60             @Override
  61             public void onComplete(final Throwable failure, final Object success) throws Throwable {
  62                 if (failure != null) { // ask timeout
  63                     Exception exception = new DocumentedException("Master is down. Please try again.",
  64                             DocumentedException.ErrorType.application, DocumentedException.ErrorTag.operation_failed,
  65                             DocumentedException.ErrorSeverity.warning);
  66                     promise.failure(exception);
  67                     return;
  68                 }
  69                 if (success instanceof Throwable) { // Error sended by master
  70                     promise.failure((Throwable) success);
  71                     return;
  72                 }
  73                 if (success instanceof EmptyReadResponse) {
  74                     promise.success(Optional.absent());
  75                     return;
  76                 }
  77
  78                 promise.success(Optional.of((NormalizedNodeMessage) success));
  79             }
  80         }, actorSystem.dispatcher());
  81
  82         return promise.future();
  83     }
  84
  85     @Override
  86     public Future<Boolean> exists(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  87         final Future<Object> existsScalaFuture =
  88                 Patterns.ask(masterContextRef, new ExistsRequest(store, path), NetconfTopologyUtils.TIMEOUT);
  89
  90         final DefaultPromise<Boolean> promise = new DefaultPromise<>();
  91         existsScalaFuture.onComplete(new OnComplete<Object>() {
  92             @Override
  93             public void onComplete(final Throwable failure, final Object success) throws Throwable {
  94                 if (failure != null) { // ask timeout
  95                     Exception exception = new DocumentedException("Master is down. Please try again.",
  96                             DocumentedException.ErrorType.application, DocumentedException.ErrorTag.operation_failed,
  97                             DocumentedException.ErrorSeverity.warning);
  98                     promise.failure(exception);
  99                     return;
 100                 }
 101                 if (success instanceof Throwable) {
 102                     promise.failure((Throwable) success);
 103                     return;
 104                 }
 105                 promise.success((Boolean) success);
 106             }
 107         }, actorSystem.dispatcher());
 108         return promise.future();
 109     }
 110
 111     @Override
 112     public void put(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
 113         masterContextRef.tell(new PutRequest(store, data), ActorRef.noSender());
 114
 115     }
 116
 117     @Override
 118     public void merge(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
 119         masterContextRef.tell(new MergeRequest(store, data), ActorRef.noSender());
 120     }
 121
 122     @Override
 123     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
 124         masterContextRef.tell(new DeleteRequest(store, path), ActorRef.noSender());
 125     }
 126
 127     @Override
 128     public boolean cancel() {
 129         final Future<Object> cancelScalaFuture =
 130                 Patterns.ask(masterContextRef, new CancelRequest(), NetconfTopologyUtils.TIMEOUT);
 131         try {
 132             // here must be Await because AsyncWriteTransaction do not return future
 133             return (boolean) Await.result(cancelScalaFuture, NetconfTopologyUtils.TIMEOUT.duration());
 134         } catch (Exception e) {
 135             return false;
 136         }
 137     }
 138
 139     @Override
 140     public Future<Void> submit() {
 141         final Future<Object> submitScalaFuture =
 142                 Patterns.ask(masterContextRef, new SubmitRequest(), NetconfTopologyUtils.TIMEOUT);
 143
 144         final DefaultPromise<Void> promise = new DefaultPromise<>();
 145
 146         submitScalaFuture.onComplete(new OnComplete<Object>() {
 147             @Override
 148             public void onComplete(final Throwable failure, final Object success) throws Throwable {
 149                 if (failure != null) { // ask timeout
 150                     Exception exception = new DocumentedException("Master is down. Please try again.",
 151                             DocumentedException.ErrorType.application, DocumentedException.ErrorTag.operation_failed,
 152                             DocumentedException.ErrorSeverity.warning);
 153                     promise.failure(exception);
 154                     return;
 155                 }
 156                 if (success instanceof Throwable) {
 157                     promise.failure((Throwable) success);
 158                 } else {
 159                     if (success instanceof SubmitFailedReply) {
 160                         LOG.error("Transaction was not submitted.");
 161                     }
 162                     promise.success(null);
 163                 }
 164             }
 165         }, actorSystem.dispatcher());
 166
 167         return promise.future();
 168     }
 169
 170 }