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 static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.annotations.VisibleForTesting;
  13 import com.google.common.collect.ImmutableMap;
  14 import java.util.Map;
  15 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  16 import org.opendaylight.mdsal.dom.spi.shard.DOMDataTreeShardProducer;
  17 import org.opendaylight.mdsal.dom.spi.shard.ForeignShardModificationContext;
  18 import org.opendaylight.mdsal.dom.spi.shard.WriteableModificationNode;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  20 import org.opendaylight.yangtools.yang.data.api.schema.tree.CursorAwareDataTreeSnapshot;
  21
  22 final class InMemoryShardDataModificationFactory {
  23     private final Map<DOMDataTreeIdentifier, ForeignShardModificationContext> childShards;
  24     private final Map<PathArgument, WriteableModificationNode> children;
  25     private final DOMDataTreeIdentifier root;
  26
  27     InMemoryShardDataModificationFactory(
  28             final DOMDataTreeIdentifier root,
  29             final Map<PathArgument, WriteableModificationNode> children,
  30             final Map<DOMDataTreeIdentifier, ForeignShardModificationContext> childShards) {
  31         this.root = requireNonNull(root);
  32         this.children = ImmutableMap.copyOf(children);
  33         this.childShards = ImmutableMap.copyOf(childShards);
  34     }
  35
  36     @VisibleForTesting
  37     Map<PathArgument, WriteableModificationNode> getChildren() {
  38         return children;
  39     }
  40
  41     @VisibleForTesting
  42     Map<DOMDataTreeIdentifier, ForeignShardModificationContext> getChildShards() {
  43         return childShards;
  44     }
  45
  46     ShardDataModification createModification(final CursorAwareDataTreeSnapshot snapshot) {
  47         return new ShardDataModification(new ShardRootModificationContext(root, snapshot), children, childShards);
  48     }
  49
  50     void close() {
  51         childShards.values().stream().map(ForeignShardModificationContext::getProducer)
  52                 .forEach(DOMDataTreeShardProducer::close);
  53     }
  54 }