opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardModificationFactory.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.controller.cluster.sharding;
  10
  11 import com.google.common.annotations.VisibleForTesting;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.collect.ImmutableMap;
  14 import java.util.Map;
  15 import org.opendaylight.controller.cluster.databroker.actors.dds.ClientTransaction;
  16 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  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
  21 /**
  22  * Factory for {@link DistributedShardModification}.
  23  */
  24 public final class DistributedShardModificationFactory {
  25     private final Map<DOMDataTreeIdentifier, ForeignShardModificationContext> childShards;
  26     private final Map<PathArgument, WriteableModificationNode> children;
  27     private final DOMDataTreeIdentifier root;
  28
  29     DistributedShardModificationFactory(final DOMDataTreeIdentifier root,
  30                                         final Map<PathArgument, WriteableModificationNode> children,
  31                                         final Map<DOMDataTreeIdentifier, ForeignShardModificationContext> childShards) {
  32         this.root = Preconditions.checkNotNull(root);
  33         this.children = ImmutableMap.copyOf(children);
  34         this.childShards = ImmutableMap.copyOf(childShards);
  35     }
  36
  37     @VisibleForTesting
  38     Map<PathArgument, WriteableModificationNode> getChildren() {
  39         return children;
  40     }
  41
  42     @VisibleForTesting
  43     Map<DOMDataTreeIdentifier, ForeignShardModificationContext> getChildShards() {
  44         return childShards;
  45     }
  46
  47     DistributedShardModification createModification(final ClientTransaction transaction) {
  48         return new DistributedShardModification(
  49                 new DistributedShardModificationContext(transaction, root), children, childShards);
  50     }
  51 }