netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/tx/NetconfMasterDOMTransaction.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 com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import com.google.common.util.concurrent.Futures;
  15 import javax.annotation.Nonnull;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  18 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  23 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  24 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceDataBroker;
  25 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  26 import org.opendaylight.netconf.topology.singleton.api.NetconfDOMTransaction;
  27 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  30 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33 import scala.concurrent.Future;
  34 import scala.concurrent.impl.Promise.DefaultPromise;
  35
  36 public class NetconfMasterDOMTransaction implements NetconfDOMTransaction {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(NetconfMasterDOMTransaction.class);
  39
  40     private final RemoteDeviceId id;
  41     private final DOMDataBroker delegateBroker;
  42
  43     private DOMDataReadOnlyTransaction readTx;
  44     private DOMDataWriteTransaction writeTx;
  45
  46     public NetconfMasterDOMTransaction(final RemoteDeviceId id,
  47                                        final SchemaContext schemaContext,
  48                                        final DOMRpcService rpc,
  49                                        final NetconfSessionPreferences netconfSessionPreferences) {
  50         this(id, new NetconfDeviceDataBroker(id, schemaContext, rpc, netconfSessionPreferences));
  51     }
  52
  53     public NetconfMasterDOMTransaction(final RemoteDeviceId id, final DOMDataBroker delegateBroker) {
  54         this.id = id;
  55         this.delegateBroker = delegateBroker;
  56
  57         // only ever need 1 readTx since it doesnt need to be closed
  58         readTx = delegateBroker.newReadOnlyTransaction();
  59     }
  60
  61     @Override
  62     public Future<Optional<NormalizedNodeMessage>> read(final LogicalDatastoreType store,
  63                                                         final YangInstanceIdentifier path) {
  64         LOG.trace("{}: Read[{}] {} via NETCONF: {}", id, readTx.getIdentifier(), store, path);
  65
  66         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> readFuture = readTx.read(store, path);
  67
  68         final DefaultPromise<Optional<NormalizedNodeMessage>> promise = new DefaultPromise<>();
  69         Futures.addCallback(readFuture, new FutureCallback<Optional<NormalizedNode<?, ?>>>() {
  70             @Override
  71             public void onSuccess(final Optional<NormalizedNode<?, ?>> result) {
  72                 if (!result.isPresent()) {
  73                     promise.success(Optional.absent());
  74                 } else {
  75                     promise.success(Optional.of(new NormalizedNodeMessage(path, result.get())));
  76                 }
  77             }
  78
  79             @Override
  80             public void onFailure(@Nonnull final Throwable throwable) {
  81                 promise.failure(throwable);
  82             }
  83         });
  84         return promise.future();
  85     }
  86
  87     @Override
  88     public Future<Boolean> exists(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  89         LOG.trace("{}: Exists[{}] {} via NETCONF: {}", id, readTx.getIdentifier(), store, path);
  90
  91         final CheckedFuture<Boolean, ReadFailedException> existsFuture = readTx.exists(store, path);
  92
  93         final DefaultPromise<Boolean> promise = new DefaultPromise<>();
  94         Futures.addCallback(existsFuture, new FutureCallback<Boolean>() {
  95             @Override
  96             public void onSuccess(final Boolean result) {
  97                 promise.success(result);
  98             }
  99
 100             @Override
 101             public void onFailure(@Nonnull final Throwable throwable) {
 102                 promise.failure(throwable);
 103             }
 104         });
 105         return promise.future();
 106     }
 107
 108     @Override
 109     public void put(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
 110         if (writeTx == null) {
 111             writeTx = delegateBroker.newWriteOnlyTransaction();
 112         }
 113
 114         LOG.trace("{}: Write[{}] {} via NETCONF: {} with payload {}", id, writeTx.getIdentifier(), store,
 115                 data.getIdentifier(), data.getNode());
 116
 117         writeTx.put(store, data.getIdentifier(), data.getNode());
 118     }
 119
 120     @Override
 121     public void merge(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
 122         if (writeTx == null) {
 123             writeTx = delegateBroker.newWriteOnlyTransaction();
 124         }
 125
 126         LOG.trace("{}: Merge[{}] {} via NETCONF: {} with payload {}", id, writeTx.getIdentifier(),store,
 127                 data.getIdentifier(), data.getNode());
 128
 129         writeTx.merge(store, data.getIdentifier(), data.getNode());
 130     }
 131
 132     @Override
 133     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
 134         if (writeTx == null) {
 135             writeTx = delegateBroker.newWriteOnlyTransaction();
 136         }
 137
 138         LOG.trace("{}: Delete[{}} {} via NETCONF: {}", id, writeTx.getIdentifier(), store, path);
 139
 140         writeTx.delete(store, path);
 141     }
 142
 143     @Override
 144     public boolean cancel() {
 145         LOG.trace("{}: Cancel[{}} via NETCONF", id, writeTx.getIdentifier());
 146
 147         return writeTx.cancel();
 148     }
 149
 150     @Override
 151     public Future<Void> submit() {
 152         LOG.trace("{}: Submit[{}} via NETCONF", id, writeTx.getIdentifier());
 153
 154         final CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTx.submit();
 155         final DefaultPromise<Void> promise = new DefaultPromise<>();
 156         Futures.addCallback(submitFuture, new FutureCallback<Void>() {
 157             @Override
 158             public void onSuccess(final Void result) {
 159                 promise.success(result);
 160                 writeTx = null;
 161             }
 162
 163             @Override
 164             public void onFailure(@Nonnull final Throwable throwable) {
 165                 promise.failure(throwable);
 166                 writeTx = null;
 167             }
 168         });
 169         return promise.future();
 170     }
 171
 172 }