2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.frm.group;
10 import org.opendaylight.controller.frm.AbstractChangeListener;
11 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
12 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
13 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.AddGroupInputBuilder;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.RemoveGroupInputBuilder;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.UpdateGroupInputBuilder;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.OriginalGroupBuilder;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.group.update.UpdatedGroupBuilder;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupRef;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
22 import org.opendaylight.yangtools.yang.binding.DataObject;
23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import com.google.common.base.Preconditions;
30 * Group Change Listener
31 * add, update and remove {@link Group} processing from {@link org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent}.
33 * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
36 public class GroupChangeListener extends AbstractChangeListener {
38 private static final Logger LOG = LoggerFactory.getLogger(GroupChangeListener.class);
40 private final GroupProvider provider;
42 public GroupChangeListener(final GroupProvider provider) {
43 this.provider = Preconditions.checkNotNull(provider, "GroupProvider can not be null !");
47 protected void remove(final InstanceIdentifier<? extends DataObject> identifier,
48 final DataObject removeDataObj) {
50 final Group group = ((Group) removeDataObj);
51 final InstanceIdentifier<Node> nodeInstanceId = identifier.<Node> firstIdentifierOf(Node.class);
52 final RemoveGroupInputBuilder builder = new RemoveGroupInputBuilder(group);
54 builder.setNode(new NodeRef(nodeInstanceId));
55 builder.setGroupRef(new GroupRef(identifier));
57 Uri uri = new Uri(this.getTransactionId());
58 builder.setTransactionUri(uri);
59 this.provider.getSalGroupService().removeGroup(builder.build());
60 LOG.debug("Transaction {} - Remove Group has removed group: {}", new Object[]{uri, removeDataObj});
64 protected void update(final InstanceIdentifier<? extends DataObject> identifier,
65 final DataObject original, final DataObject update) {
67 final Group originalGroup = ((Group) original);
68 final Group updatedGroup = ((Group) update);
69 final InstanceIdentifier<Node> nodeInstanceId = identifier.<Node> firstIdentifierOf(Node.class);
70 final UpdateGroupInputBuilder builder = new UpdateGroupInputBuilder();
72 builder.setNode(new NodeRef(nodeInstanceId));
73 builder.setGroupRef(new GroupRef(identifier));
75 Uri uri = new Uri(this.getTransactionId());
76 builder.setTransactionUri(uri);
78 builder.setUpdatedGroup((new UpdatedGroupBuilder(updatedGroup)).build());
79 builder.setOriginalGroup((new OriginalGroupBuilder(originalGroup)).build());
81 this.provider.getSalGroupService().updateGroup(builder.build());
82 LOG.debug("Transaction {} - Update Group has updated group {} with group {}", new Object[]{uri, original, update});
86 protected void add(final InstanceIdentifier<? extends DataObject> identifier,
87 final DataObject addDataObj) {
89 final Group group = ((Group) addDataObj);
90 final InstanceIdentifier<Node> nodeInstanceId = identifier.<Node> firstIdentifierOf(Node.class);
91 final AddGroupInputBuilder builder = new AddGroupInputBuilder(group);
93 builder.setNode(new NodeRef(nodeInstanceId));
94 builder.setGroupRef(new GroupRef(identifier));
96 Uri uri = new Uri(this.getTransactionId());
97 builder.setTransactionUri(uri);
98 this.provider.getSalGroupService().addGroup(builder.build());
99 LOG.debug("Transaction {} - Add Group has added group: {}", new Object[]{uri, addDataObj});
103 protected boolean preconditionForChange(final InstanceIdentifier<? extends DataObject> identifier,
104 final DataObject dataObj, final DataObject update) {
106 final ReadOnlyTransaction trans = this.provider.getDataService().newReadOnlyTransaction();
107 return update != null
108 ? (dataObj instanceof Group && update instanceof Group && isNodeAvailable(identifier, trans))
109 : (dataObj instanceof Group && isNodeAvailable(identifier, trans));