opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMForwardedReadWriteTransaction.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  */package org.opendaylight.controller.md.sal.dom.broker.impl;
   8
   9 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  10 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  11 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  12 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  14 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  15
  16 import com.google.common.base.Optional;
  17 import com.google.common.collect.ImmutableMap;
  18 import com.google.common.util.concurrent.CheckedFuture;
  19
  20 /**
  21  *
  22  * Read-Write Transaction, which is composed of several
  23  * {@link DOMStoreReadWriteTransaction} transactions. Subtransaction is selected by
  24  * {@link LogicalDatastoreType} type parameter in:
  25  *
  26  * <ul>
  27  * <li>{@link #read(LogicalDatastoreType, YangInstanceIdentifier)}
  28  * <li>{@link #put(LogicalDatastoreType, YangInstanceIdentifier, NormalizedNode)}
  29  * <li>{@link #delete(LogicalDatastoreType, YangInstanceIdentifier)}
  30  * <li>{@link #merge(LogicalDatastoreType, YangInstanceIdentifier, NormalizedNode)}
  31  * </ul>
  32  * {@link #commit()} will result in invocation of
  33  * {@link DOMDataCommitImplementation#submit(org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction, Iterable)}
  34  * invocation with all {@link org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort} for underlying
  35  * transactions.
  36  *
  37  */
  38
  39 class DOMForwardedReadWriteTransaction extends DOMForwardedWriteTransaction<DOMStoreReadWriteTransaction> implements
  40         DOMDataReadWriteTransaction {
  41
  42     protected DOMForwardedReadWriteTransaction(final Object identifier,
  43             final ImmutableMap<LogicalDatastoreType, DOMStoreReadWriteTransaction> backingTxs,
  44             final DOMDataCommitImplementation commitImpl) {
  45         super(identifier, backingTxs, commitImpl);
  46     }
  47
  48     @Override
  49     public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
  50             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  51         return getSubtransaction(store).read(path);
  52     }
  53
  54     @Override public CheckedFuture<Boolean, ReadFailedException> exists(
  55         LogicalDatastoreType store,
  56         YangInstanceIdentifier path) {
  57         return getSubtransaction(store).exists(path);
  58     }
  59 }