2 * Copyright (c) 2016 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.groupbasedpolicy.renderer.ofoverlay.statistics;
10 import static com.google.common.base.Preconditions.checkNotNull;
12 import java.util.Collections;
13 import java.util.HashMap;
14 import java.util.List;
16 import java.util.Map.Entry;
18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
19 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
20 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
22 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.resolved.policy.rev150828.ResolvedPolicies;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.resolved.policy.rev150828.has.classifiers.Classifier;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.resolved.policy.rev150828.has.resolved.rules.ResolvedRule;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.resolved.policy.rev150828.resolved.policies.ResolvedPolicy;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.resolved.policy.rev150828.resolved.policies.resolved.policy.PolicyRuleGroupWithEndpointConstraints;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.resolved.policy.rev150828.resolved.policies.resolved.policy.policy.rule.group.with.endpoint.constraints.PolicyRuleGroup;
29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
33 import com.google.common.collect.MapDifference;
34 import com.google.common.collect.Maps;
36 public class ResolvedPolicyClassifierListener extends DataTreeChangeHandler<ResolvedPolicy> {
38 private static final Logger LOG = LoggerFactory.getLogger(ResolvedPolicyClassifierListener.class);
39 private final OFStatisticsManager ofStatsManager;
41 public ResolvedPolicyClassifierListener(DataBroker dataProvider, OFStatisticsManager ofStatsManager) {
42 super(dataProvider, new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL,
43 InstanceIdentifier.builder(ResolvedPolicies.class).child(ResolvedPolicy.class).build()));
44 this.ofStatsManager = checkNotNull(ofStatsManager);
48 protected void onWrite(DataObjectModification<ResolvedPolicy> rootNode,
49 InstanceIdentifier<ResolvedPolicy> rootIdentifier) {
50 ResolvedPolicy resolvedPolicy = rootNode.getDataAfter();
51 Map<InstanceIdentifier<Classifier>, Classifier> classifierByIid =
52 resolveClassifiers(resolvedPolicy, rootIdentifier);
53 for (Entry<InstanceIdentifier<Classifier>, Classifier> classfierEntry : classifierByIid.entrySet()) {
54 LOG.trace("New classifier created: {}\n{}", classfierEntry.getKey(), classfierEntry.getValue());
55 ofStatsManager.pullStatsForClassifier(classfierEntry.getKey(), classfierEntry.getValue());
60 protected void onDelete(DataObjectModification<ResolvedPolicy> rootNode,
61 InstanceIdentifier<ResolvedPolicy> rootIdentifier) {
62 LOG.debug("Delete is not supported yet.");
66 protected void onSubtreeModified(DataObjectModification<ResolvedPolicy> rootNode,
67 InstanceIdentifier<ResolvedPolicy> rootIdentifier) {
68 ResolvedPolicy resolvedPolicyAfter = rootNode.getDataAfter();
69 ResolvedPolicy resolvedPolicyBefore = rootNode.getDataBefore();
70 Map<InstanceIdentifier<Classifier>, Classifier> classifierByIidAfter =
71 resolveClassifiers(resolvedPolicyAfter, rootIdentifier);
72 Map<InstanceIdentifier<Classifier>, Classifier> classifierByIidBefore =
73 resolveClassifiers(resolvedPolicyBefore, rootIdentifier);
74 MapDifference<InstanceIdentifier<Classifier>, Classifier> difference =
75 Maps.difference(classifierByIidBefore, classifierByIidAfter);
76 Map<InstanceIdentifier<Classifier>, Classifier> createdClassifierByIid = difference.entriesOnlyOnRight();
77 for (Entry<InstanceIdentifier<Classifier>, Classifier> createdClassfierEntry : createdClassifierByIid
79 LOG.trace("New classifier created: {}\n{}", createdClassfierEntry.getKey(),
80 createdClassfierEntry.getValue());
81 ofStatsManager.pullStatsForClassifier(createdClassfierEntry.getKey(), createdClassfierEntry.getValue());
83 // TODO missing impl for case when classifier is changed or removed
86 private Map<InstanceIdentifier<Classifier>, Classifier> resolveClassifiers(ResolvedPolicy resolvedPolicy,
87 InstanceIdentifier<ResolvedPolicy> resolvedPolicyIid) {
88 List<PolicyRuleGroupWithEndpointConstraints> policyRgWithEcs =
89 resolvedPolicy.getPolicyRuleGroupWithEndpointConstraints();
90 if (policyRgWithEcs == null) {
91 return Collections.emptyMap();
93 Map<InstanceIdentifier<Classifier>, Classifier> result = new HashMap<>();
94 for (PolicyRuleGroupWithEndpointConstraints policyRgWithEc : policyRgWithEcs) {
95 List<PolicyRuleGroup> policyRuleGroups = policyRgWithEc.getPolicyRuleGroup();
96 if (policyRuleGroups == null) {
99 for (PolicyRuleGroup policyRuleGroup : policyRuleGroups) {
100 List<ResolvedRule> resolvedRules = policyRuleGroup.getResolvedRule();
101 if (resolvedRules == null) {
104 for (ResolvedRule resolvedRule : resolvedRules) {
105 List<Classifier> classifiers = resolvedRule.getClassifier();
106 if (classifiers == null) {
109 for (Classifier classifier : classifiers) {
110 InstanceIdentifier<Classifier> classifierIid = resolvedPolicyIid.builder()
111 .child(PolicyRuleGroupWithEndpointConstraints.class)
112 .child(PolicyRuleGroup.class, policyRuleGroup.getKey())
113 .child(ResolvedRule.class, resolvedRule.getKey())
114 .child(Classifier.class, classifier.getKey())
116 result.put(classifierIid, classifier);