--- /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.group;
+
+import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
+import org.opendaylight.controller.sal.binding.api.data.DataModificationTransaction;
+import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
+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.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class GroupProvider implements AutoCloseable {
+
+ private final static Logger LOG = LoggerFactory.getLogger(GroupProvider.class);
+
+ private SalGroupService salGroupService;
+ private DataProviderService dataService;
+
+ /* DataChangeListener */
+ private GroupChangeListener groupDataChangeListener;
+ ListenerRegistration<DataChangeListener> groupDataChangeListenerRegistration;
+
+ public void start() {
+ /* Build Path */
+ InstanceIdentifierBuilder<Nodes> nodesBuilder = InstanceIdentifier.<Nodes> builder(Nodes.class);
+ InstanceIdentifierBuilder<Node> nodeChild = nodesBuilder.<Node> child(Node.class);
+ InstanceIdentifierBuilder<FlowCapableNode> augmentFlowCapNode = nodeChild.<FlowCapableNode> augmentation(FlowCapableNode.class);
+ InstanceIdentifierBuilder<Group> groupChild = augmentFlowCapNode.<Group> child(Group.class);
+ final InstanceIdentifier<? extends DataObject> groupDataObjectPath = groupChild.toInstance();
+
+ /* DataChangeListener registration */
+ this.groupDataChangeListener = new GroupChangeListener(this.salGroupService);
+ this.groupDataChangeListenerRegistration = this.dataService.registerDataChangeListener(groupDataObjectPath, groupDataChangeListener);
+ LOG.info("Group Config Provider started.");
+ }
+
+ protected DataModificationTransaction startChange() {
+ return this.dataService.beginTransaction();
+ }
+
+ public void close() throws Exception {
+ if(groupDataChangeListenerRegistration != null){
+ groupDataChangeListenerRegistration.close();
+ }
+ }
+
+ public void setDataService(final DataProviderService dataService) {
+ this.dataService = dataService;
+ }
+
+ public void setSalGroupService(final SalGroupService salGroupService) {
+ this.salGroupService = salGroupService;
+ }
+}