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

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. 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;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSystem;
  13 import akka.pattern.Patterns;
  14 import akka.util.Timeout;
  15 import com.google.common.base.Preconditions;
  16 import java.util.Collections;
  17 import java.util.Map;
  18 import javax.annotation.Nonnull;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
  23 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  24 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  25 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  26 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  27 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  28 import org.opendaylight.netconf.sal.connect.netconf.sal.tx.ReadWriteTx;
  29 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  30 import org.opendaylight.netconf.topology.singleton.impl.tx.ProxyReadTransaction;
  31 import org.opendaylight.netconf.topology.singleton.impl.tx.ProxyWriteTransaction;
  32 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewReadTransactionReply;
  33 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewReadTransactionRequest;
  34 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewWriteTransactionReply;
  35 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewWriteTransactionRequest;
  36 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  37 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  38 import scala.concurrent.Await;
  39 import scala.concurrent.Future;
  40
  41 public class ProxyDOMDataBroker implements DOMDataBroker {
  42
  43     private final Timeout askTimeout;
  44     private final RemoteDeviceId id;
  45     private final ActorRef masterNode;
  46     private final ActorSystem actorSystem;
  47
  48     /**
  49      * @param actorSystem system
  50      * @param id          id
  51      * @param masterNode  {@link org.opendaylight.netconf.topology.singleton.impl.actors.NetconfNodeActor} ref
  52      * @param askTimeout ask timeout
  53      */
  54     public ProxyDOMDataBroker(final ActorSystem actorSystem, final RemoteDeviceId id,
  55                               final ActorRef masterNode, final Timeout askTimeout) {
  56         this.id = id;
  57         this.masterNode = masterNode;
  58         this.actorSystem = actorSystem;
  59         this.askTimeout = askTimeout;
  60     }
  61
  62     @Override
  63     public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
  64         final Future<Object> txActorFuture = Patterns.ask(masterNode, new NewReadTransactionRequest(), askTimeout);
  65         try {
  66             final Object msg = Await.result(txActorFuture, askTimeout.duration());
  67             if (msg instanceof Throwable) {
  68                 throw (Throwable) msg;
  69             }
  70             Preconditions.checkState(msg instanceof NewReadTransactionReply);
  71             final NewReadTransactionReply reply = (NewReadTransactionReply) msg;
  72             return new ProxyReadTransaction(reply.getTxActor(), id, actorSystem, askTimeout);
  73         } catch (final Throwable t) {
  74             throw new IllegalStateException("Can't create ProxyReadTransaction", t);
  75         }
  76     }
  77
  78     @Override
  79     public DOMDataReadWriteTransaction newReadWriteTransaction() {
  80         return new ReadWriteTx(newReadOnlyTransaction(), newWriteOnlyTransaction());
  81     }
  82
  83     @Override
  84     public DOMDataWriteTransaction newWriteOnlyTransaction() {
  85         final Future<Object> txActorFuture = Patterns.ask(masterNode, new NewWriteTransactionRequest(), askTimeout);
  86         try {
  87             final Object msg = Await.result(txActorFuture, askTimeout.duration());
  88             if (msg instanceof Throwable) {
  89                 throw (Throwable) msg;
  90             }
  91             Preconditions.checkState(msg instanceof NewWriteTransactionReply);
  92             final NewWriteTransactionReply reply = (NewWriteTransactionReply) msg;
  93             return new ProxyWriteTransaction(reply.getTxActor(), id, actorSystem, askTimeout);
  94         } catch (final Throwable t) {
  95             throw new IllegalStateException("Can't create ProxyWriteTransaction", t);
  96         }
  97     }
  98
  99     @Override
 100     public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(
 101             final LogicalDatastoreType store, final YangInstanceIdentifier path, final DOMDataChangeListener listener,
 102             final DataChangeScope triggeringScope) {
 103         throw new UnsupportedOperationException(id + ": Data change listeners not supported for netconf mount point");
 104     }
 105
 106     @Override
 107     public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
 108         throw new UnsupportedOperationException(id + ": Transaction chains not supported for netconf mount point");
 109     }
 110
 111     @Nonnull
 112     @Override
 113     public Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> getSupportedExtensions() {
 114         return Collections.emptyMap();
 115     }
 116 }