netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/RemoteOperationTxProcessorImpl.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;
  10
  11 import akka.actor.ActorRef;
  12 import com.google.common.base.Optional;
  13 import com.google.common.util.concurrent.CheckedFuture;
  14 import com.google.common.util.concurrent.FutureCallback;
  15 import com.google.common.util.concurrent.Futures;
  16 import javax.annotation.Nonnull;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  19 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  23 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  24 import org.opendaylight.netconf.topology.singleton.api.RemoteOperationTxProcessor;
  25 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  26 import org.opendaylight.netconf.topology.singleton.messages.SubmitFailedReply;
  27 import org.opendaylight.netconf.topology.singleton.messages.transactions.EmptyReadResponse;
  28 import org.opendaylight.netconf.topology.singleton.messages.transactions.SubmitReply;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 public class RemoteOperationTxProcessorImpl implements RemoteOperationTxProcessor, AutoCloseable {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(RemoteOperationTxProcessorImpl.class);
  37
  38     private final DOMDataBroker dataBroker;
  39     private final RemoteDeviceId id;
  40     private DOMDataWriteTransaction writeTx;
  41     private DOMDataReadOnlyTransaction readTx;
  42
  43     public RemoteOperationTxProcessorImpl(final DOMDataBroker dataBroker, final RemoteDeviceId id) {
  44         this.dataBroker = dataBroker;
  45         this.id = id;
  46         this.readTx = dataBroker.newReadOnlyTransaction();
  47     }
  48
  49     @Override
  50     public void doDelete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  51         if (writeTx == null) {
  52             writeTx = dataBroker.newWriteOnlyTransaction();
  53         }
  54         writeTx.delete(store, path);
  55     }
  56
  57     @Override
  58     public void doSubmit(final ActorRef recipient, final ActorRef sender) {
  59         if (writeTx != null) {
  60             CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTx.submit();
  61             Futures.addCallback(submitFuture, new FutureCallback<Void>() {
  62                 @Override
  63                 public void onSuccess(Void result) {
  64                     recipient.tell(new SubmitReply(), sender);
  65                 }
  66
  67                 @Override
  68                 public void onFailure(@Nonnull Throwable throwable) {
  69                     recipient.tell(throwable, sender);
  70                 }
  71             });
  72         } else {
  73             recipient.tell(new SubmitFailedReply(), sender);
  74             LOG.warn("{}: Couldn't submit transaction because it was already closed.", id);
  75         }
  76     }
  77
  78     @Override
  79     public void doCancel(final ActorRef recipient, final ActorRef sender) {
  80         boolean cancel = false;
  81         if (writeTx != null) {
  82             cancel = writeTx.cancel();
  83         }
  84         recipient.tell(cancel, sender);
  85     }
  86
  87     @Override
  88     public void doPut(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
  89         if (writeTx == null) {
  90             writeTx = dataBroker.newWriteOnlyTransaction();
  91         }
  92         writeTx.put(store, data.getIdentifier(), data.getNode());
  93     }
  94
  95     @Override
  96     public void doMerge(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
  97         if (writeTx == null) {
  98             writeTx = dataBroker.newWriteOnlyTransaction();
  99         }
 100         writeTx.merge(store, data.getIdentifier(), data.getNode());
 101     }
 102
 103     @Override
 104     public void doRead(final LogicalDatastoreType store, final YangInstanceIdentifier path, final ActorRef recipient,
 105                        final ActorRef sender) {
 106         final CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> readFuture =
 107                 readTx.read(store, path);
 108
 109         Futures.addCallback(readFuture, new FutureCallback<Optional<NormalizedNode<?, ?>>>() {
 110
 111             @Override
 112             public void onSuccess(final Optional<NormalizedNode<?, ?>> result) {
 113                 if (!result.isPresent()) {
 114                     recipient.tell(new EmptyReadResponse(), sender);
 115                     return;
 116                 }
 117                 recipient.tell(new NormalizedNodeMessage(path, result.get()), sender);
 118             }
 119
 120             @Override
 121             public void onFailure(@Nonnull final Throwable throwable) {
 122                 recipient.tell(throwable, sender);
 123             }
 124         });
 125     }
 126
 127     @Override
 128     public void doExists(final LogicalDatastoreType store, final YangInstanceIdentifier path, final ActorRef recipient,
 129                          final ActorRef sender) {
 130         final CheckedFuture<Boolean, ReadFailedException> readFuture =
 131                 readTx.exists(store, path);
 132         Futures.addCallback(readFuture, new FutureCallback<Boolean>() {
 133             @Override
 134             public void onSuccess(final Boolean result) {
 135                 if (result == null) {
 136                     recipient.tell(false, sender);
 137                 } else {
 138                     recipient.tell(result, sender);
 139                 }
 140             }
 141
 142             @Override
 143             public void onFailure(@Nonnull final Throwable throwable) {
 144                 recipient.tell(throwable, sender);
 145             }
 146         });
 147     }
 148
 149     @Override
 150     public void close() throws Exception {
 151         if (readTx != null) {
 152             readTx.close();
 153         }
 154     }
 155 }