opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/DOMBrokerReadOnlyTransaction.java

   1 /*
   2  * Copyright (c) 2015 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.controller.cluster.databroker;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import java.util.Map;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  17 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  18 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionFactory;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  21
  22 public class DOMBrokerReadOnlyTransaction
  23     extends AbstractDOMBrokerTransaction<DOMStoreReadTransaction>
  24         implements DOMDataReadOnlyTransaction {
  25     /**
  26      * Creates new composite Transactions.
  27      *
  28      * @param identifier Identifier of transaction.
  29      */
  30     protected DOMBrokerReadOnlyTransaction(Object identifier, Map<LogicalDatastoreType, ? extends DOMStoreTransactionFactory> storeTxFactories) {
  31         super(identifier, storeTxFactories);
  32     }
  33
  34     @Override
  35     public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
  36             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  37         return getSubtransaction(store).read(path);
  38     }
  39
  40     @Override
  41     public CheckedFuture<Boolean, ReadFailedException> exists(
  42             final LogicalDatastoreType store,
  43             final YangInstanceIdentifier path) {
  44         return getSubtransaction(store).exists(path);
  45     }
  46
  47     @Override
  48     public void close() {
  49         closeSubtransactions();
  50     }
  51
  52     @Override
  53     protected DOMStoreReadTransaction createTransaction(LogicalDatastoreType key) {
  54         return getTxFactory(key).newReadOnlyTransaction();
  55     }
  56
  57
  58 }