BUG8607 Fix checkstyle issues
[openflowplugin.git] / applications / forwardingrules-manager / src / main / java / org / opendaylight / openflowplugin / applications / frm / impl / GroupForwarder.java
index 96bb0628c239b927b5ae8a2391162f1bba27cd19..f9ee0feafde1f7fe745629a41ffd5ebebffc4d59 100644 (file)
@@ -11,6 +11,7 @@ import com.google.common.base.Preconditions;
 import com.google.common.util.concurrent.CheckedFuture;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
+import java.util.concurrent.Future;
 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
@@ -18,9 +19,10 @@ import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.AddGroupInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.AddGroupOutput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.RemoveGroupInputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.RemoveGroupOutput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.UpdateGroupInputBuilder;
@@ -41,41 +43,31 @@ import org.opendaylight.yangtools.yang.common.RpcResult;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.concurrent.Callable;
-import java.util.concurrent.Future;
-
 /**
- * GroupForwarder
- * It implements {@link org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener}}
- * for WildCardedPath to {@link Group} and ForwardingRulesCommiter interface for methods:
- *  add, update and remove {@link Group} processing for
- *  {@link org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent}.
- *
- * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
- *
+ * GroupForwarder It implements
+ * {@link org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener}
+ * for WildCardedPath to {@link Group} and ForwardingRulesCommiter interface for
+ * methods: add, update and remove {@link Group} processing for
+ * {@link org.opendaylight.controller.md.sal.binding.api.DataTreeModification}.
  */
 public class GroupForwarder extends AbstractListeningCommiter<Group> {
 
     private static final Logger LOG = LoggerFactory.getLogger(GroupForwarder.class);
-
     private final DataBroker dataBroker;
-
     private ListenerRegistration<GroupForwarder> listenerRegistration;
 
-    public GroupForwarder (final ForwardingRulesManager manager, final DataBroker db) {
+    @SuppressWarnings("IllegalCatch")
+    public GroupForwarder(final ForwardingRulesManager manager, final DataBroker db) {
         super(manager, Group.class);
         dataBroker = Preconditions.checkNotNull(db, "DataBroker can not be null!");
-        final DataTreeIdentifier<Group> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getWildCardPath());
+        final DataTreeIdentifier<Group> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
+                getWildCardPath());
 
         try {
             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
-            listenerRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<GroupForwarder>>() {
-                @Override
-                public ListenerRegistration<GroupForwarder> call() throws Exception {
-                    return db.registerDataTreeChangeListener(treeId, GroupForwarder.this);
-                }
-            });
+            listenerRegistration = looper
+                    .loopUntilNoException(() -> db.registerDataTreeChangeListener(treeId, GroupForwarder.this));
         } catch (final Exception e) {
             LOG.warn("FRM Group DataTreeChange listener registration fail!");
             LOG.debug("FRM Group DataTreeChange listener registration fail ..", e);
@@ -86,27 +78,22 @@ public class GroupForwarder extends AbstractListeningCommiter<Group> {
     @Override
     public void close() {
         if (listenerRegistration != null) {
-            try {
-                listenerRegistration.close();
-            } catch (Exception e) {
-                LOG.warn("Error by stop FRM GroupChangeListener: {}", e.getMessage());
-                LOG.debug("Error by stop FRM GroupChangeListener..", e);
-            }
+            listenerRegistration.close();
             listenerRegistration = null;
         }
     }
 
     @Override
     protected InstanceIdentifier<Group> getWildCardPath() {
-        return InstanceIdentifier.create(Nodes.class).child(Node.class)
-                .augmentation(FlowCapableNode.class).child(Group.class);
+        return InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class)
+                .child(Group.class);
     }
 
     @Override
     public void remove(final InstanceIdentifier<Group> identifier, final Group removeDataObj,
-                       final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+            final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 
-        final Group group = (removeDataObj);
+        final Group group = removeDataObj;
         final RemoveGroupInputBuilder builder = new RemoveGroupInputBuilder(group);
 
         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
@@ -115,12 +102,12 @@ public class GroupForwarder extends AbstractListeningCommiter<Group> {
         this.provider.getSalGroupService().removeGroup(builder.build());
     }
 
-    //TODO: Pull this into ForwardingRulesCommiter and override it here
+    // TODO: Pull this into ForwardingRulesCommiter and override it here
     @Override
-    public Future<RpcResult<RemoveGroupOutput>> removeWithResult(final InstanceIdentifier<Group> identifier, final Group removeDataObj,
-                       final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+    public Future<RpcResult<RemoveGroupOutput>> removeWithResult(final InstanceIdentifier<Group> identifier,
+            final Group removeDataObj, final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 
-        final Group group = (removeDataObj);
+        final Group group = removeDataObj;
         final RemoveGroupInputBuilder builder = new RemoveGroupInputBuilder(group);
 
         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
@@ -130,53 +117,54 @@ public class GroupForwarder extends AbstractListeningCommiter<Group> {
     }
 
     @Override
-    public void update(final InstanceIdentifier<Group> identifier,
-                       final Group original, final Group update,
-                       final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+    public void update(final InstanceIdentifier<Group> identifier, final Group original, final Group update,
+            final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 
-        final Group originalGroup = (original);
-        final Group updatedGroup = (update);
+        final Group originalGroup = original;
+        final Group updatedGroup = update;
         final UpdateGroupInputBuilder builder = new UpdateGroupInputBuilder();
 
         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
         builder.setGroupRef(new GroupRef(identifier));
         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
-        builder.setUpdatedGroup((new UpdatedGroupBuilder(updatedGroup)).build());
-        builder.setOriginalGroup((new OriginalGroupBuilder(originalGroup)).build());
+        builder.setUpdatedGroup(new UpdatedGroupBuilder(updatedGroup).build());
+        builder.setOriginalGroup(new OriginalGroupBuilder(originalGroup).build());
 
         this.provider.getSalGroupService().updateGroup(builder.build());
     }
 
     @Override
-    public void add(final InstanceIdentifier<Group> identifier, final Group addDataObj,
-                    final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+    public Future<RpcResult<AddGroupOutput>> add(final InstanceIdentifier<Group> identifier, final Group addDataObj,
+            final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 
-        final Group group = (addDataObj);
+        final Group group = addDataObj;
         final AddGroupInputBuilder builder = new AddGroupInputBuilder(group);
 
         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
         builder.setGroupRef(new GroupRef(identifier));
         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
-        this.provider.getSalGroupService().addGroup(builder.build());
+        return this.provider.getSalGroupService().addGroup(builder.build());
     }
 
     @Override
-    public void createStaleMarkEntity(InstanceIdentifier<Group> identifier, Group del, InstanceIdentifier<FlowCapableNode> nodeIdent) {
+    public void createStaleMarkEntity(InstanceIdentifier<Group> identifier, Group del,
+            InstanceIdentifier<FlowCapableNode> nodeIdent) {
         LOG.debug("Creating Stale-Mark entry for the switch {} for Group {} ", nodeIdent.toString(), del.toString());
         StaleGroup staleGroup = makeStaleGroup(identifier, del, nodeIdent);
         persistStaleGroup(staleGroup, nodeIdent);
 
     }
 
-
-    private StaleGroup makeStaleGroup(InstanceIdentifier<Group> identifier, Group del, InstanceIdentifier<FlowCapableNode> nodeIdent){
+    private StaleGroup makeStaleGroup(InstanceIdentifier<Group> identifier, Group del,
+            InstanceIdentifier<FlowCapableNode> nodeIdent) {
         StaleGroupBuilder staleGroupBuilder = new StaleGroupBuilder(del);
         return staleGroupBuilder.setGroupId(del.getGroupId()).build();
     }
 
-    private void persistStaleGroup(StaleGroup staleGroup, InstanceIdentifier<FlowCapableNode> nodeIdent){
+    private void persistStaleGroup(StaleGroup staleGroup, InstanceIdentifier<FlowCapableNode> nodeIdent) {
         WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
-        writeTransaction.put(LogicalDatastoreType.CONFIGURATION, getStaleGroupInstanceIdentifier(staleGroup, nodeIdent), staleGroup, false);
+        writeTransaction.put(LogicalDatastoreType.CONFIGURATION, getStaleGroupInstanceIdentifier(staleGroup, nodeIdent),
+                staleGroup, false);
 
         CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTransaction.submit();
         handleStaleGroupResultFuture(submitFuture);
@@ -190,17 +178,17 @@ public class GroupForwarder extends AbstractListeningCommiter<Group> {
             }
 
             @Override
-            public void onFailure(Throwable t) {
-                LOG.error("Stale Group creation failed {}", t);
+            public void onFailure(Throwable throwable) {
+                LOG.error("Stale Group creation failed {}", throwable);
             }
         });
 
     }
 
-    private InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.StaleGroup> getStaleGroupInstanceIdentifier(StaleGroup staleGroup, InstanceIdentifier<FlowCapableNode> nodeIdent) {
-            return nodeIdent
-                .child(StaleGroup.class, new StaleGroupKey(new GroupId(staleGroup.getGroupId())));
+    private InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.group
+        .types.rev131018.groups.StaleGroup> getStaleGroupInstanceIdentifier(
+            StaleGroup staleGroup, InstanceIdentifier<FlowCapableNode> nodeIdent) {
+        return nodeIdent.child(StaleGroup.class, new StaleGroupKey(new GroupId(staleGroup.getGroupId())));
     }
 
 }
-