X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FFrontendMetadata.java;h=d5ecbf6ea416c6c283f0e06b5537293bbdef99e8;hb=178ebab612c3ddd338e759ca7e929c25c623b0b3;hp=efb0fdc04beb351845e6a4465298a705f5ba8156;hpb=7011afc1380ca25ad3de4cc8865f12fe3f5e09cf;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendMetadata.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendMetadata.java
index efb0fdc04b..d5ecbf6ea4 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendMetadata.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendMetadata.java
@@ -8,9 +8,10 @@
 package org.opendaylight.controller.cluster.datastore;
 
 import static com.google.common.base.Verify.verify;
+import static java.util.Objects.requireNonNull;
 
-import com.google.common.base.Preconditions;
 import com.google.common.collect.Collections2;
+import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import java.util.HashMap;
 import java.util.Map;
@@ -38,7 +39,7 @@ final class FrontendMetadata extends ShardDataTreeMetadata<FrontendShardDataTree
     private final String shardName;
 
     FrontendMetadata(final String shardName) {
-        this.shardName = Preconditions.checkNotNull(shardName);
+        this.shardName = requireNonNull(shardName);
     }
 
     @Override
@@ -149,4 +150,10 @@ final class FrontendMetadata extends ShardDataTreeMetadata<FrontendShardDataTree
 
         verify(clients.replace(frontendId, client, new FrontendClientMetadataBuilder.Disabled(shardName, clientId)));
     }
+
+    ImmutableSet<ClientIdentifier> getClients() {
+        return clients.values().stream()
+                .map(FrontendClientMetadataBuilder::getIdentifier)
+                .collect(ImmutableSet.toImmutableSet());
+    }
 }