BUG-2138: Create DistributedShardFrontend
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / shardstrategy / ModuleShardStrategy.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
9 package org.opendaylight.controller.cluster.datastore.shardstrategy;
10
11 import org.opendaylight.controller.cluster.datastore.config.Configuration;
12 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
13
14 public class ModuleShardStrategy implements ShardStrategy {
15
16     public static final String NAME = "module";
17
18     private final String moduleName;
19     private final Configuration configuration;
20
21     public ModuleShardStrategy(String moduleName, Configuration configuration) {
22         this.moduleName = moduleName;
23         this.configuration = configuration;
24     }
25
26     @Override
27     public String findShard(YangInstanceIdentifier path) {
28         String shardName = configuration.getShardNameForModule(moduleName);
29         return shardName != null ? shardName : DefaultShardStrategy.DEFAULT_SHARD;
30     }
31
32     @Override
33     public YangInstanceIdentifier getPrefixForPath(YangInstanceIdentifier path) {
34         return YangInstanceIdentifier.EMPTY;
35     }
36
37
38 }

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