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.yangtools.yang.data.api.YangInstanceIdentifier;
  19 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  20
  21 public class DOMBrokerReadOnlyTransaction<T extends DOMStoreReadTransaction>
  22     extends AbstractDOMBrokerTransaction<LogicalDatastoreType, T>
  23         implements DOMDataReadOnlyTransaction {
  24     /**
  25      * Creates new composite Transactions.
  26      *
  27      * @param identifier Identifier of transaction.
  28      */
  29     protected DOMBrokerReadOnlyTransaction(Object identifier, Map storeTxFactories) {
  30         super(identifier, storeTxFactories);
  31     }
  32
  33     @Override
  34     public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
  35             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  36         return getSubtransaction(store).read(path);
  37     }
  38
  39     @Override
  40     public CheckedFuture<Boolean, ReadFailedException> exists(
  41             final LogicalDatastoreType store,
  42             final YangInstanceIdentifier path) {
  43         return getSubtransaction(store).exists(path);
  44     }
  45
  46     @Override
  47     public void close() {
  48         closeSubtransactions();
  49     }
  50
  51     @Override
  52     protected T createTransaction(LogicalDatastoreType key) {
  53         return (T) getTxFactory(key).newReadOnlyTransaction();
  54     }
  55
  56
  57 }