opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/DOMDataBrokerImpl.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 static com.google.common.base.Preconditions.checkState;
  11
  12 import java.util.Map.Entry;
  13 import java.util.concurrent.atomic.AtomicLong;
  14
  15 import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  22 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  23 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  24 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  26 import org.opendaylight.yangtools.yang.common.RpcResult;
  27 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 import com.google.common.base.Optional;
  32 import com.google.common.collect.ImmutableMap;
  33 import com.google.common.util.concurrent.ListenableFuture;
  34 import com.google.common.util.concurrent.ListeningExecutorService;
  35
  36 public class DOMDataBrokerImpl extends AbstractDOMForwardedTransactionFactory<DOMStore> implements DOMDataBroker,
  37         AutoCloseable {
  38
  39     private static final Logger LOG = LoggerFactory.getLogger(DOMDataBrokerImpl.class);
  40
  41     private final DOMDataCommitCoordinatorImpl coordinator;
  42     private final AtomicLong txNum = new AtomicLong();
  43     private final AtomicLong chainNum = new AtomicLong();
  44
  45     public DOMDataBrokerImpl(final ImmutableMap<LogicalDatastoreType, DOMStore> datastores,
  46             final ListeningExecutorService executor) {
  47         super(datastores);
  48         this.coordinator = new DOMDataCommitCoordinatorImpl(executor);
  49     }
  50
  51     @Override
  52     protected Object newTransactionIdentifier() {
  53         return "DOM-" + txNum.getAndIncrement();
  54     }
  55
  56     @Override
  57     public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(final LogicalDatastoreType store,
  58             final InstanceIdentifier path, final DOMDataChangeListener listener, final DataChangeScope triggeringScope) {
  59
  60         DOMStore potentialStore = getTxFactories().get(store);
  61         checkState(potentialStore != null, "Requested logical data store is not available.");
  62         return potentialStore.registerChangeListener(path, listener, triggeringScope);
  63     }
  64
  65     @Override
  66     public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
  67         ImmutableMap.Builder<LogicalDatastoreType, DOMStoreTransactionChain> backingChainsBuilder = ImmutableMap
  68                 .builder();
  69         for (Entry<LogicalDatastoreType, DOMStore> entry : getTxFactories().entrySet()) {
  70             backingChainsBuilder.put(entry.getKey(), entry.getValue().createTransactionChain());
  71         }
  72         long chainId = chainNum.getAndIncrement();
  73         ImmutableMap<LogicalDatastoreType, DOMStoreTransactionChain> backingChains = backingChainsBuilder.build();
  74         LOG.debug("Transactoin chain {} created with listener {}, backing store chains {}", chainId, listener,
  75                 backingChains);
  76         return new DOMDataBrokerTransactionChainImpl(chainId, backingChains, coordinator, listener);
  77
  78     }
  79
  80     @Override
  81     public ListenableFuture<RpcResult<TransactionStatus>> commit(final DOMDataWriteTransaction transaction,
  82             final Iterable<DOMStoreThreePhaseCommitCohort> cohorts) {
  83         LOG.debug("Transaction: {} submitted with cohorts {}.", transaction.getIdentifier(), cohorts);
  84         return coordinator.submit(transaction, cohorts, Optional.<DOMDataCommitErrorListener> absent());
  85     }
  86
  87 }