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 scala.concurrent.Future;
  32 import scala.concurrent.impl.Promise.DefaultPromise;
  33
  34 public class NetconfMasterDOMTransaction implements NetconfDOMTransaction {
  35
  36     private final DOMDataBroker delegateBroker;
  37
  38     private DOMDataReadOnlyTransaction readTx;
  39     private DOMDataWriteTransaction writeTx;
  40
  41     public NetconfMasterDOMTransaction(final RemoteDeviceId id,
  42                                        final SchemaContext schemaContext, final DOMRpcService rpc,
  43                                        final NetconfSessionPreferences netconfSessionPreferences) {
  44
  45         delegateBroker = new NetconfDeviceDataBroker(id, schemaContext, rpc, netconfSessionPreferences);
  46
  47         // only ever need 1 readTx since it doesnt need to be closed
  48         readTx = delegateBroker.newReadOnlyTransaction();
  49     }
  50
  51     public NetconfMasterDOMTransaction(final DOMDataBroker delegateBroker) {
  52         this.delegateBroker = delegateBroker;
  53
  54         // only ever need 1 readTx since it doesnt need to be closed
  55         readTx = delegateBroker.newReadOnlyTransaction();
  56     }
  57
  58     @Override
  59     public Future<Optional<NormalizedNodeMessage>> read(final LogicalDatastoreType store,
  60                                                         final YangInstanceIdentifier path) {
  61         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> readFuture = readTx.read(store, path);
  62
  63         final DefaultPromise<Optional<NormalizedNodeMessage>> promise = new DefaultPromise<>();
  64         Futures.addCallback(readFuture, new FutureCallback<Optional<NormalizedNode<?, ?>>>() {
  65             @Override
  66             public void onSuccess(final Optional<NormalizedNode<?, ?>> result) {
  67                 if (!result.isPresent()) {
  68                     promise.success(Optional.absent());
  69                 } else {
  70                     promise.success(Optional.of(new NormalizedNodeMessage(path, result.get())));
  71                 }
  72             }
  73
  74             @Override
  75             public void onFailure(@Nonnull final Throwable throwable) {
  76                 promise.failure(throwable);
  77             }
  78         });
  79         return promise.future();
  80     }
  81
  82     @Override
  83     public Future<Boolean> exists(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  84         final CheckedFuture<Boolean, ReadFailedException> existsFuture = readTx.exists(store, path);
  85
  86         final DefaultPromise<Boolean> promise = new DefaultPromise<>();
  87         Futures.addCallback(existsFuture, new FutureCallback<Boolean>() {
  88             @Override
  89             public void onSuccess(final Boolean result) {
  90                 promise.success(result);
  91             }
  92
  93             @Override
  94             public void onFailure(@Nonnull final Throwable throwable) {
  95                 promise.failure(throwable);
  96             }
  97         });
  98         return promise.future();
  99     }
 100
 101     @Override
 102     public void put(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
 103         if (writeTx == null) {
 104             writeTx = delegateBroker.newWriteOnlyTransaction();
 105         }
 106         writeTx.put(store, data.getIdentifier(), data.getNode());
 107     }
 108
 109     @Override
 110     public void merge(final LogicalDatastoreType store, final NormalizedNodeMessage data) {
 111         if (writeTx == null) {
 112             writeTx = delegateBroker.newWriteOnlyTransaction();
 113         }
 114         writeTx.merge(store, data.getIdentifier(), data.getNode());
 115     }
 116
 117     @Override
 118     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
 119         if (writeTx == null) {
 120             writeTx = delegateBroker.newWriteOnlyTransaction();
 121         }
 122         writeTx.delete(store, path);
 123     }
 124
 125     @Override
 126     public boolean cancel() {
 127         return writeTx.cancel();
 128     }
 129
 130     @Override
 131     public Future<Void> submit() {
 132         final CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTx.submit();
 133         final DefaultPromise<Void> promise = new DefaultPromise<>();
 134         Futures.addCallback(submitFuture, new FutureCallback<Void>() {
 135             @Override
 136             public void onSuccess(final Void result) {
 137                 promise.success(result);
 138                 writeTx = null;
 139             }
 140
 141             @Override
 142             public void onFailure(@Nonnull final Throwable throwable) {
 143                 promise.failure(throwable);
 144                 writeTx = null;
 145             }
 146         });
 147         return promise.future();
 148     }
 149
 150 }