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 import com.google.common.base.Optional;
  12 import com.google.common.collect.ImmutableMap;
  13 import com.google.common.util.concurrent.CheckedFuture;
  14 import com.google.common.util.concurrent.ListeningExecutorService;
  15 import java.util.EnumMap;
  16 import java.util.Map;
  17 import java.util.Map.Entry;
  18 import java.util.concurrent.atomic.AtomicLong;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  21 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  23 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  24 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  25 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  26 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  27 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  28 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  29 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  30 import org.opendaylight.yangtools.util.DurationStatsTracker;
  31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  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     private volatile AutoCloseable closeable;
  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     public void setCloseable(final AutoCloseable closeable) {
  52         this.closeable = closeable;
  53     }
  54
  55     public DurationStatsTracker getCommitStatsTracker() {
  56         return coordinator.getCommitStatsTracker();
  57     }
  58
  59     @Override
  60     public void close() {
  61         super.close();
  62
  63         if(closeable != null) {
  64             try {
  65                 closeable.close();
  66             } catch(Exception e) {
  67                 LOG.debug("Error closing instance", e);
  68             }
  69         }
  70     }
  71
  72     @Override
  73     protected Object newTransactionIdentifier() {
  74         return "DOM-" + txNum.getAndIncrement();
  75     }
  76
  77     @Override
  78     public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(final LogicalDatastoreType store,
  79             final YangInstanceIdentifier path, final DOMDataChangeListener listener, final DataChangeScope triggeringScope) {
  80
  81         DOMStore potentialStore = getTxFactories().get(store);
  82         checkState(potentialStore != null, "Requested logical data store is not available.");
  83         return potentialStore.registerChangeListener(path, listener, triggeringScope);
  84     }
  85
  86     @Override
  87     public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
  88         checkNotClosed();
  89
  90         final Map<LogicalDatastoreType, DOMStoreTransactionChain> backingChains = new EnumMap<>(LogicalDatastoreType.class);
  91         for (Entry<LogicalDatastoreType, DOMStore> entry : getTxFactories().entrySet()) {
  92             backingChains.put(entry.getKey(), entry.getValue().createTransactionChain());
  93         }
  94
  95         final long chainId = chainNum.getAndIncrement();
  96         LOG.debug("Transactoin chain {} created with listener {}, backing store chains {}", chainId, listener,
  97                 backingChains);
  98         return new DOMDataBrokerTransactionChainImpl(chainId, backingChains, coordinator, listener);
  99
 100     }
 101
 102     @Override
 103     public CheckedFuture<Void,TransactionCommitFailedException> submit(final DOMDataWriteTransaction transaction,
 104             final Iterable<DOMStoreThreePhaseCommitCohort> cohorts) {
 105         LOG.debug("Transaction: {} submitted with cohorts {}.", transaction.getIdentifier(), cohorts);
 106         return coordinator.submit(transaction, cohorts, Optional.<DOMDataCommitErrorListener> absent());
 107     }
 108 }