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.meter;
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.inventory.rev130819.NodeRef;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.AddMeterInputBuilder;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.RemoveMeterInputBuilder;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.UpdateMeterInputBuilder;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.meter.update.OriginalMeterBuilder;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.meter.update.UpdatedMeterBuilder;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.Meter;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterRef;
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 * Meter Change Listener
31 * add, update and remove {@link Meter} 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 MeterChangeListener extends AbstractChangeListener {
38 private static final Logger LOG = LoggerFactory.getLogger(MeterChangeListener.class);
40 private final MeterProvider provider;
42 public MeterChangeListener (final MeterProvider provider) {
43 this.provider = Preconditions.checkNotNull(provider, "MeterProvider can not be null !");
47 protected void remove(final InstanceIdentifier<? extends DataObject> identifier,
48 final DataObject removeDataObj) {
50 final Meter meter = ((Meter) removeDataObj);
51 final InstanceIdentifier<Node> nodeIdent = identifier.firstIdentifierOf(Node.class);
52 final RemoveMeterInputBuilder builder = new RemoveMeterInputBuilder(meter);
54 builder.setNode(new NodeRef(nodeIdent));
55 builder.setMeterRef(new MeterRef(identifier));
57 Uri uri = new Uri(this.getTransactionId());
58 builder.setTransactionUri(uri);
59 this.provider.getSalMeterService().removeMeter(builder.build());
60 LOG.debug("Transaction {} - Remove Meter has removed meter: {}", new Object[]{uri, removeDataObj});
64 protected void update(final InstanceIdentifier<? extends DataObject> identifier,
65 final DataObject original, final DataObject update) {
67 final Meter originalMeter = ((Meter) original);
68 final Meter updatedMeter = ((Meter) update);
69 final InstanceIdentifier<Node> nodeInstanceId = identifier.firstIdentifierOf(Node.class);
70 final UpdateMeterInputBuilder builder = new UpdateMeterInputBuilder();
72 builder.setNode(new NodeRef(nodeInstanceId));
73 builder.setMeterRef(new MeterRef(identifier));
75 Uri uri = new Uri(this.getTransactionId());
76 builder.setTransactionUri(uri);
78 builder.setUpdatedMeter((new UpdatedMeterBuilder(updatedMeter)).build());
79 builder.setOriginalMeter((new OriginalMeterBuilder(originalMeter)).build());
81 this.provider.getSalMeterService().updateMeter(builder.build());
82 LOG.debug("Transaction {} - Update Meter has updated meter {} with {}", new Object[]{uri, original, update});
87 protected void add(final InstanceIdentifier<? extends DataObject> identifier,
88 final DataObject addDataObj) {
90 final Meter meter = ((Meter) addDataObj);
91 final InstanceIdentifier<Node> nodeInstanceId = identifier.firstIdentifierOf(Node.class);
92 final AddMeterInputBuilder builder = new AddMeterInputBuilder(meter);
94 builder.setNode(new NodeRef(nodeInstanceId));
95 builder.setMeterRef(new MeterRef(identifier));
97 Uri uri = new Uri(this.getTransactionId());
98 builder.setTransactionUri(uri);
99 this.provider.getSalMeterService().addMeter(builder.build());
100 LOG.debug("Transaction {} - Add Meter has added meter: {}", new Object[]{uri, addDataObj});
104 protected boolean preconditionForChange(final InstanceIdentifier<? extends DataObject> identifier,
105 final DataObject dataObj, final DataObject update) {
107 final ReadOnlyTransaction trans = this.provider.getDataService().newReadOnlyTransaction();
108 return update != null
109 ? (dataObj instanceof Meter && update instanceof Meter && isNodeAvailable(identifier, trans))
110 : (dataObj instanceof Meter && isNodeAvailable(identifier, trans));