dom/mdsal-dom-inmemory-datastore/src/main/java/org/opendaylight/mdsal/dom/store/inmemory/InMemoryShardDataModificationFactory.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 package org.opendaylight.mdsal.dom.store.inmemory;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.collect.ImmutableMap;
  13 import java.util.Map;
  14 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  15 import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardProducer;
  16 import org.opendaylight.mdsal.dom.spi.shard.ForeignShardModificationContext;
  17 import org.opendaylight.mdsal.dom.spi.shard.WriteableModificationNode;
  18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  19 import org.opendaylight.yangtools.yang.data.api.schema.tree.CursorAwareDataTreeSnapshot;
  20
  21 final class InMemoryShardDataModificationFactory {
  22     private final Map<DOMDataTreeIdentifier, ForeignShardModificationContext> childShards;
  23     private final Map<PathArgument, WriteableModificationNode> children;
  24     private final DOMDataTreeIdentifier root;
  25
  26     InMemoryShardDataModificationFactory(
  27             final DOMDataTreeIdentifier root,
  28             final Map<PathArgument, WriteableModificationNode> children,
  29             final Map<DOMDataTreeIdentifier, ForeignShardModificationContext> childShards) {
  30         this.root = Preconditions.checkNotNull(root);
  31         this.children = ImmutableMap.copyOf(children);
  32         this.childShards = ImmutableMap.copyOf(childShards);
  33     }
  34
  35     @VisibleForTesting
  36     Map<PathArgument, WriteableModificationNode> getChildren() {
  37         return children;
  38     }
  39
  40     @VisibleForTesting
  41     Map<DOMDataTreeIdentifier, ForeignShardModificationContext> getChildShards() {
  42         return childShards;
  43     }
  44
  45     ShardDataModification createModification(final CursorAwareDataTreeSnapshot snapshot) {
  46         return new ShardDataModification(new ShardRootModificationContext(root, snapshot), children, childShards);
  47     }
  48
  49     void close() {
  50         childShards.values().stream().map(ForeignShardModificationContext::getProducer)
  51                 .forEach(DOMDataTreeShardProducer::close);
  52     }
  53 }