dom/mdsal-dom-inmemory-datastore/src/main/java/org/opendaylight/mdsal/dom/store/inmemory/InMemoryDOMDataTreeShardProducer.java

   1 /*
   2  * Copyright (c) 2016 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
   9 package org.opendaylight.mdsal.dom.store.inmemory;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.collect.ImmutableSet;
  13 import java.util.Collection;
  14 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  15
  16 final class InMemoryDOMDataTreeShardProducer implements DOMDataTreeShardProducer {
  17
  18     private final InMemoryDOMDataTreeShard parentShard;
  19     private final Collection<DOMDataTreeIdentifier> prefixes;
  20
  21     private InmemoryDOMDataTreeShardWriteTransaction currentTx;
  22     private InmemoryDOMDataTreeShardWriteTransaction lastSubmittedTx;
  23
  24     InMemoryDOMDataTreeShardProducer(final InMemoryDOMDataTreeShard parentShard,
  25             final Collection<DOMDataTreeIdentifier> prefixes) {
  26         this.parentShard = Preconditions.checkNotNull(parentShard);
  27         this.prefixes = ImmutableSet.copyOf(prefixes);
  28     }
  29
  30     @Override
  31     public InmemoryDOMDataTreeShardWriteTransaction createTransaction() {
  32 //      Preconditions.checkState(currentTx == null || currentTx.isFinished(), "Previous transaction not finished yet.");
  33         if (lastSubmittedTx != null) {
  34             currentTx = parentShard.createTransaction(lastSubmittedTx);
  35         } else {
  36             currentTx = parentShard.createTransaction(prefixes);
  37         }
  38         return currentTx;
  39     }
  40
  41     @Override
  42     public Collection<DOMDataTreeIdentifier> getPrefixes() {
  43         return prefixes;
  44     }
  45 }