BUG 2138: Introduce prefix based shards into ShardManager

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / shardstrategy / ShardStrategyFactory.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardstrategy/ShardStrategyFactory.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardstrategy/ShardStrategyFactory.java
index a26dc56a750067c026d6cacff45f2663525b72f4..a97adc27308fdbc265d06e925a50a982f2fd22b7 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardstrategy/ShardStrategyFactory.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardstrategy/ShardStrategyFactory.java
@@ -25,10 +25,16 @@ public class ShardStrategyFactory {
     public ShardStrategy getStrategy(final YangInstanceIdentifier path) {
         Preconditions.checkNotNull(path, "path should not be null");
 
-        String moduleName = getModuleName(path);
-        ShardStrategy shardStrategy = configuration.getStrategyForModule(moduleName);
+        // try with the legacy module based shard mapping
+        final String moduleName = getModuleName(path);
+        final ShardStrategy shardStrategy = configuration.getStrategyForModule(moduleName);
         if (shardStrategy == null) {
-            return DefaultShardStrategy.getInstance();
+            // retry with prefix based sharding
+            final ShardStrategy strategyForPrefix = configuration.getStrategyForPrefix(path);
+            if (strategyForPrefix == null) {
+                return DefaultShardStrategy.getInstance();
+            }
+            return strategyForPrefix;
         }
 
         return shardStrategy;