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