2 * Copyright (c) 2015 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
9 package org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf;
11 import static com.google.common.base.Preconditions.checkNotNull;
13 import java.util.Collection;
15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
16 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
17 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
18 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
19 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
20 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
22 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.OFOverlayRenderer;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.SubjectFeatureDefinitions;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.subject.feature.definitions.ClassifierDefinition;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.Renderers;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.Renderer;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.RendererKey;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.Capabilities;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedClassifierDefinition;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedClassifierDefinitionBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedClassifierDefinitionKey;
32 import org.opendaylight.yangtools.concepts.ListenerRegistration;
33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
37 import com.google.common.util.concurrent.FutureCallback;
38 import com.google.common.util.concurrent.Futures;
40 public class ClassifierDefinitionListener implements DataTreeChangeListener<ClassifierDefinition>, AutoCloseable {
42 private static final Logger LOG = LoggerFactory.getLogger(ClassifierDefinitionListener.class);
43 private static final InstanceIdentifier<Capabilities> RENDERER_CAPABILITIES_IID = InstanceIdentifier.builder(Renderers.class)
44 .child(Renderer.class, new RendererKey(OFOverlayRenderer.RENDERER_NAME))
45 .child(Capabilities.class)
47 private static String PUT = "stored";
48 private static String DELETED = "removed";
50 private final DataBroker dataProvider;
51 private final ListenerRegistration<ClassifierDefinitionListener> registration;
53 public ClassifierDefinitionListener(DataBroker dataProvider) {
54 this.dataProvider = checkNotNull(dataProvider);
57 .registerDataTreeChangeListener(
58 new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, InstanceIdentifier
59 .builder(SubjectFeatureDefinitions.class).child(ClassifierDefinition.class).build()),
64 public void onDataTreeChanged(Collection<DataTreeModification<ClassifierDefinition>> changes) {
65 for (DataTreeModification<ClassifierDefinition> change : changes) {
66 DataObjectModification<ClassifierDefinition> rootNode = change.getRootNode();
68 switch (rootNode.getModificationType()) {
70 case SUBTREE_MODIFIED:
71 ClassifierDefinition classifierDefinitionAfter = checkNotNull(rootNode.getDataAfter());
72 Classifier ourClassifier = SubjectFeatures.getClassifier(classifierDefinitionAfter.getId());
73 if (ourClassifier != null) {
74 SupportedClassifierDefinition supportedClassifierDefinition =
75 createSupportedClassifierDefinition(ourClassifier);
76 WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
77 wTx.put(LogicalDatastoreType.OPERATIONAL, RENDERER_CAPABILITIES_IID
78 .child(SupportedClassifierDefinition.class, supportedClassifierDefinition.getKey()),
79 supportedClassifierDefinition, true);
80 Futures.addCallback(wTx.submit(), logDebugResult(supportedClassifierDefinition.getKey(), PUT));
85 ClassifierDefinition classifierDefinitionBefore = checkNotNull(rootNode.getDataBefore());
86 ourClassifier = SubjectFeatures.getClassifier(classifierDefinitionBefore.getId());
87 if (ourClassifier != null) {
88 SupportedClassifierDefinitionKey supportedClassifierDefinitionKey =
89 new SupportedClassifierDefinitionKey(ourClassifier.getId());
90 WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
91 wTx.delete(LogicalDatastoreType.OPERATIONAL, RENDERER_CAPABILITIES_IID
92 .child(SupportedClassifierDefinition.class, supportedClassifierDefinitionKey));
93 Futures.addCallback(wTx.submit(), logDebugResult(supportedClassifierDefinitionKey, DELETED));
101 private SupportedClassifierDefinition createSupportedClassifierDefinition(Classifier classifier) {
102 SupportedClassifierDefinitionBuilder scdBuilder =
103 new SupportedClassifierDefinitionBuilder().setClassifierDefinitionId(classifier.getId())
104 .setSupportedParameterValues(classifier.getSupportedParameterValues());
105 if (classifier.getParent() != null) {
106 scdBuilder.setParentClassifierDefinitionId(classifier.getParent().getId());
108 return scdBuilder.build();
111 private FutureCallback<Void> logDebugResult(final SupportedClassifierDefinitionKey supportedClassifierDefinitionKey,
112 final String putOrDeleted) {
113 return new FutureCallback<Void>() {
116 public void onSuccess(Void result) {
117 LOG.debug("Capability of renerer {} was {}: {}", OFOverlayRenderer.RENDERER_NAME.getValue(),
118 putOrDeleted, supportedClassifierDefinitionKey);
122 public void onFailure(Throwable t) {
123 LOG.error("Capability of renderer {} was NOT {}: {}", OFOverlayRenderer.RENDERER_NAME.getValue(),
124 putOrDeleted, supportedClassifierDefinitionKey, t);
130 public void close() throws Exception {
131 if (registration != null)
132 registration.close();