--- /dev/null
+/**
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.frm.impl;
+
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.frm.ForwardingRulesManager;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.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.RemoveGroupInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.UpdateGroupInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.OriginalGroupBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.UpdatedGroupBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupRef;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * GroupForwarder
+ * It implements {@link org.opendaylight.controller.md.sal.binding.api.DataChangeListener}}
+ * 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>
+ *
+ */
+public class GroupForwarder extends AbstractListeningCommiter<Group> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(GroupForwarder.class);
+
+ private ListenerRegistration<DataChangeListener> listenerRegistration;
+
+ public GroupForwarder (final ForwardingRulesManager manager, final DataBroker db) {
+ super(manager, Group.class);
+ Preconditions.checkNotNull(db, "DataBroker can not be null!");
+ this.listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
+ getWildCardPath(), GroupForwarder.this, DataChangeScope.BASE);
+ }
+
+ @Override
+ public void close() {
+ if (listenerRegistration != null) {
+ try {
+ listenerRegistration.close();
+ } catch (Exception e) {
+ LOG.error("Error by stop FRM GroupChangeListener.", e);
+ }
+ listenerRegistration = null;
+ }
+ }
+
+ @Override
+ protected InstanceIdentifier<Group> getWildCardPath() {
+ 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 Group group = (removeDataObj);
+ final RemoveGroupInputBuilder builder = new RemoveGroupInputBuilder(group);
+
+ builder.setNode(new NodeRef(nodeIdent));
+ builder.setGroupRef(new GroupRef(identifier));
+ builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+ this.provider.getSalGroupService().removeGroup(builder.build());
+ }
+
+ @Override
+ 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 UpdateGroupInputBuilder builder = new UpdateGroupInputBuilder();
+
+ builder.setNode(new NodeRef(nodeIdent));
+ builder.setGroupRef(new GroupRef(identifier));
+ builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+ 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) {
+
+ final Group group = (addDataObj);
+ final AddGroupInputBuilder builder = new AddGroupInputBuilder(group);
+
+ builder.setNode(new NodeRef(nodeIdent));
+ builder.setGroupRef(new GroupRef(identifier));
+ builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+ this.provider.getSalGroupService().addGroup(builder.build());
+ }
+}
+