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.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.ListeningExecutorService;
  13 import java.util.EnumMap;
  14 import java.util.Map;
  15 import java.util.Map.Entry;
  16 import java.util.concurrent.atomic.AtomicLong;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  19 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  23 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  24 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  25 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  26 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  27 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  28 import org.opendaylight.yangtools.util.DurationStatsTracker;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class DOMDataBrokerImpl extends AbstractDOMForwardedTransactionFactory<DOMStore> implements DOMDataBroker,
  34         AutoCloseable {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(DOMDataBrokerImpl.class);
  37
  38     private final DOMDataCommitCoordinatorImpl coordinator;
  39     private final AtomicLong txNum = new AtomicLong();
  40     private final AtomicLong chainNum = new AtomicLong();
  41     private volatile AutoCloseable closeable;
  42
  43     public DOMDataBrokerImpl(final Map<LogicalDatastoreType, DOMStore> datastores,
  44             final ListeningExecutorService executor) {
  45         super(datastores);
  46         this.coordinator = new DOMDataCommitCoordinatorImpl(executor);
  47     }
  48
  49     public void setCloseable(final AutoCloseable closeable) {
  50         this.closeable = closeable;
  51     }
  52
  53     public DurationStatsTracker getCommitStatsTracker() {
  54         return coordinator.getCommitStatsTracker();
  55     }
  56
  57     @Override
  58     public void close() {
  59         super.close();
  60
  61         if(closeable != null) {
  62             try {
  63                 closeable.close();
  64             } catch(Exception e) {
  65                 LOG.debug("Error closing instance", e);
  66             }
  67         }
  68     }
  69
  70     @Override
  71     protected Object newTransactionIdentifier() {
  72         return "DOM-" + txNum.getAndIncrement();
  73     }
  74
  75     @Override
  76     public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(final LogicalDatastoreType store,
  77             final YangInstanceIdentifier path, final DOMDataChangeListener listener, final DataChangeScope triggeringScope) {
  78
  79         DOMStore potentialStore = getTxFactories().get(store);
  80         checkState(potentialStore != null, "Requested logical data store is not available.");
  81         return potentialStore.registerChangeListener(path, listener, triggeringScope);
  82     }
  83
  84     @Override
  85     public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
  86         checkNotClosed();
  87
  88         final Map<LogicalDatastoreType, DOMStoreTransactionChain> backingChains = new EnumMap<>(LogicalDatastoreType.class);
  89         for (Entry<LogicalDatastoreType, DOMStore> entry : getTxFactories().entrySet()) {
  90             backingChains.put(entry.getKey(), entry.getValue().createTransactionChain());
  91         }
  92
  93         final long chainId = chainNum.getAndIncrement();
  94         LOG.debug("Transactoin chain {} created with listener {}, backing store chains {}", chainId, listener,
  95                 backingChains);
  96         return new DOMDataBrokerTransactionChainImpl(chainId, backingChains, coordinator, listener);
  97
  98     }
  99
 100     @Override
 101     public CheckedFuture<Void,TransactionCommitFailedException> submit(final DOMDataWriteTransaction transaction,
 102             final Iterable<DOMStoreThreePhaseCommitCohort> cohorts) {
 103         LOG.debug("Transaction: {} submitted with cohorts {}.", transaction.getIdentifier(), cohorts);
 104         return coordinator.submit(transaction, cohorts);
 105     }
 106 }