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.Preconditions;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import com.google.common.util.concurrent.ListeningExecutorService;
  14 import java.util.EnumMap;
  15 import java.util.Map;
  16 import java.util.Map.Entry;
  17 import java.util.concurrent.atomic.AtomicLong;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  20 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  23 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  24 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  25 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  26 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  27 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  28 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  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 DOMDataCommitExecutor 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         this(datastores, new DOMDataCommitCoordinatorImpl(executor));
  46     }
  47
  48     public DOMDataBrokerImpl(final Map<LogicalDatastoreType, DOMStore> datastores,
  49             final DOMDataCommitExecutor coordinator) {
  50         super(datastores);
  51         this.coordinator = Preconditions.checkNotNull(coordinator);
  52     }
  53
  54     public void setCloseable(final AutoCloseable closeable) {
  55         this.closeable = closeable;
  56     }
  57
  58     @Override
  59     public void close() {
  60         super.close();
  61
  62         if(closeable != null) {
  63             try {
  64                 closeable.close();
  65             } catch(Exception e) {
  66                 LOG.debug("Error closing instance", e);
  67             }
  68         }
  69     }
  70
  71     @Override
  72     protected Object newTransactionIdentifier() {
  73         return "DOM-" + txNum.getAndIncrement();
  74     }
  75
  76     @Override
  77     public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(final LogicalDatastoreType store,
  78             final YangInstanceIdentifier path, final DOMDataChangeListener listener, final DataChangeScope triggeringScope) {
  79
  80         DOMStore potentialStore = getTxFactories().get(store);
  81         checkState(potentialStore != null, "Requested logical data store is not available.");
  82         return potentialStore.registerChangeListener(path, listener, triggeringScope);
  83     }
  84
  85     @Override
  86     public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
  87         checkNotClosed();
  88
  89         final Map<LogicalDatastoreType, DOMStoreTransactionChain> backingChains = new EnumMap<>(LogicalDatastoreType.class);
  90         for (Entry<LogicalDatastoreType, DOMStore> entry : getTxFactories().entrySet()) {
  91             backingChains.put(entry.getKey(), entry.getValue().createTransactionChain());
  92         }
  93
  94         final long chainId = chainNum.getAndIncrement();
  95         LOG.debug("Transactoin chain {} created with listener {}, backing store chains {}", chainId, listener,
  96                 backingChains);
  97         return new DOMDataBrokerTransactionChainImpl(chainId, backingChains, coordinator, listener);
  98
  99     }
 100
 101     @Override
 102     public CheckedFuture<Void,TransactionCommitFailedException> submit(final DOMDataWriteTransaction transaction,
 103             final Iterable<DOMStoreThreePhaseCommitCohort> cohorts) {
 104         LOG.debug("Transaction: {} submitted with cohorts {}.", transaction.getIdentifier(), cohorts);
 105         return coordinator.submit(transaction, cohorts);
 106     }
 107 }