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