netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/tx/ProxyWriteAdapter.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.tx;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSystem;
  13 import akka.dispatch.OnComplete;
  14 import akka.pattern.Patterns;
  15 import akka.util.Timeout;
  16 import com.google.common.base.Function;
  17 import com.google.common.base.Preconditions;
  18 import com.google.common.util.concurrent.CheckedFuture;
  19 import com.google.common.util.concurrent.Futures;
  20 import com.google.common.util.concurrent.ListenableFuture;
  21 import com.google.common.util.concurrent.SettableFuture;
  22 import java.util.concurrent.atomic.AtomicBoolean;
  23 import javax.annotation.Nullable;
  24 import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
  25 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  26 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  27 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  28 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologyUtils;
  29 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  30 import org.opendaylight.netconf.topology.singleton.messages.transactions.CancelRequest;
  31 import org.opendaylight.netconf.topology.singleton.messages.transactions.DeleteRequest;
  32 import org.opendaylight.netconf.topology.singleton.messages.transactions.MergeRequest;
  33 import org.opendaylight.netconf.topology.singleton.messages.transactions.PutRequest;
  34 import org.opendaylight.netconf.topology.singleton.messages.transactions.SubmitFailedReply;
  35 import org.opendaylight.netconf.topology.singleton.messages.transactions.SubmitRequest;
  36 import org.opendaylight.yangtools.yang.common.RpcResult;
  37 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  39 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42 import scala.concurrent.Await;
  43 import scala.concurrent.Future;
  44
  45 public class ProxyWriteAdapter {
  46
  47     private static final Logger LOG = LoggerFactory.getLogger(ProxyWriteAdapter.class);
  48
  49     private final ActorRef masterTxActor;
  50     private final RemoteDeviceId id;
  51     private final ActorSystem actorSystem;
  52     private final AtomicBoolean opened = new AtomicBoolean(true);
  53     private final Timeout askTimeout;
  54
  55     public ProxyWriteAdapter(final ActorRef masterTxActor, final RemoteDeviceId id, final ActorSystem actorSystem,
  56                              final Timeout askTimeout) {
  57         this.masterTxActor = masterTxActor;
  58         this.id = id;
  59         this.actorSystem = actorSystem;
  60         this.askTimeout = askTimeout;
  61     }
  62
  63     public boolean cancel() {
  64         if (!opened.compareAndSet(true, false)) {
  65             return false;
  66         }
  67         final Future<Object> cancelScalaFuture =
  68                 Patterns.ask(masterTxActor, new CancelRequest(), askTimeout);
  69
  70         LOG.trace("{}: Cancel {} via NETCONF", id);
  71
  72         try {
  73             // here must be Await because AsyncWriteTransaction do not return future
  74             return (boolean) Await.result(cancelScalaFuture, askTimeout.duration());
  75         } catch (final Exception e) {
  76             return false;
  77         }
  78     }
  79
  80     public CheckedFuture<Void, TransactionCommitFailedException> submit(final Object identifier) {
  81         if (!opened.compareAndSet(true, false)) {
  82             throw new IllegalStateException(id + ": Transaction" + identifier + " is closed");
  83         }
  84         final Future<Object> submitScalaFuture =
  85                 Patterns.ask(masterTxActor, new SubmitRequest(), askTimeout);
  86
  87         LOG.trace("{}: Submit {} via NETCONF", id);
  88
  89         final SettableFuture<Void> settableFuture = SettableFuture.create();
  90         submitScalaFuture.onComplete(new OnComplete<Object>() {
  91             @Override
  92             public void onComplete(final Throwable failure, final Object success) throws Throwable {
  93                 if (failure != null) { // ask timeout
  94                     final Exception exception = NetconfTopologyUtils.createMasterIsDownException(id);
  95                     settableFuture.setException(exception);
  96                     return;
  97                 }
  98                 if (success instanceof Throwable) {
  99                     settableFuture.setException((Throwable) success);
 100                 } else {
 101                     if (success instanceof SubmitFailedReply) {
 102                         LOG.error("{}: Transaction was not submitted because already closed.", id);
 103                     }
 104                     settableFuture.set(null);
 105                 }
 106             }
 107         }, actorSystem.dispatcher());
 108
 109         return Futures.makeChecked(settableFuture, new Function<Exception, TransactionCommitFailedException>() {
 110             @Nullable
 111             @Override
 112             public TransactionCommitFailedException apply(@Nullable final Exception input) {
 113                 final String message = "Submit of transaction " + identifier + " failed";
 114                 return new TransactionCommitFailedException(message, input);
 115             }
 116         });
 117     }
 118
 119     public ListenableFuture<RpcResult<TransactionStatus>> commit(final Object identifier) {
 120         LOG.trace("{}: Commit", id);
 121
 122         final CheckedFuture<Void, TransactionCommitFailedException> submit = submit(identifier);
 123         return Futures.transform(submit, new Function<Void, RpcResult<TransactionStatus>>() {
 124             @Nullable
 125             @Override
 126             public RpcResult<TransactionStatus> apply(@Nullable final Void input) {
 127                 return RpcResultBuilder.success(TransactionStatus.SUBMITED).build();
 128             }
 129         });
 130     }
 131
 132     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier identifier) {
 133         Preconditions.checkState(opened.get(), "%s: Transaction was closed %s", id, identifier);
 134         LOG.trace("{}: Delete {} via NETCONF: {}", id, store, identifier);
 135         masterTxActor.tell(new DeleteRequest(store, identifier), ActorRef.noSender());
 136     }
 137
 138     public void put(final LogicalDatastoreType store, final YangInstanceIdentifier path,
 139                     final NormalizedNode<?, ?> data, final Object identifier) {
 140         Preconditions.checkState(opened.get(), "%s: Transaction was closed %s", id, identifier);
 141         final NormalizedNodeMessage msg = new NormalizedNodeMessage(path, data);
 142         LOG.trace("{}: Put {} via NETCONF: {} with payload {}", id, store, path, data);
 143         masterTxActor.tell(new PutRequest(store, msg), ActorRef.noSender());
 144     }
 145
 146     public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path,
 147                       final NormalizedNode<?, ?> data, final Object identifier) {
 148         Preconditions.checkState(opened.get(), "%s: Transaction was closed %s", id, identifier);
 149         final NormalizedNodeMessage msg = new NormalizedNodeMessage(path, data);
 150         LOG.trace("{}: Merge {} via NETCONF: {} with payload {}", id, store, path, data);
 151         masterTxActor.tell(new MergeRequest(store, msg), ActorRef.noSender());
 152     }
 153
 154 }