dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/DOMForwardedReadOnlyTransaction.java

   1 /*
   2  * Copyright (c) 2014 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 package org.opendaylight.mdsal.dom.broker;
   9
  10 import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadTransaction;
  11
  12 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  13 import org.opendaylight.mdsal.common.api.ReadFailedException;
  14 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
  15 import com.google.common.base.Optional;
  16 import com.google.common.util.concurrent.CheckedFuture;
  17 import java.util.Map;
  18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  19 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  20
  21 /**
  22  * Read Only Transaction, which is composed of several
  23  * {@link DOMStoreReadTransaction} transactions. Subtransaction is selected by
  24  * {@link LogicalDatastoreType} type parameter in
  25  * {@link #read(LogicalDatastoreType, YangInstanceIdentifier)}.
  26  */
  27 class DOMForwardedReadOnlyTransaction extends
  28         AbstractDOMForwardedCompositeTransaction<LogicalDatastoreType, DOMStoreReadTransaction> implements
  29         DOMDataTreeReadTransaction {
  30
  31     protected DOMForwardedReadOnlyTransaction(final Object identifier,
  32             final Map<LogicalDatastoreType, DOMStoreReadTransaction> backingTxs) {
  33         super(identifier, backingTxs);
  34     }
  35
  36     @Override
  37     public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
  38             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  39         return getSubtransaction(store).read(path);
  40     }
  41
  42     @Override
  43     public CheckedFuture<Boolean, ReadFailedException> exists(
  44         final LogicalDatastoreType store,
  45         final YangInstanceIdentifier path) {
  46         return getSubtransaction(store).exists(path);
  47     }
  48
  49     @Override
  50     public void close() {
  51         closeSubtransactions();
  52     }
  53 }