renderers/iovisor/src/main/java/org/opendaylight/groupbasedpolicy/renderer/iovisor/sf/ActionDefinitionListener.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   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
   7  */
   8
   9 package org.opendaylight.groupbasedpolicy.renderer.iovisor.sf;
  10
  11 import static com.google.common.base.Preconditions.checkNotNull;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.groupbasedpolicy.renderer.iovisor.IovisorRenderer;
  19 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.SubjectFeatureDefinitions;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.subject.feature.definitions.ActionDefinition;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.Renderers;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.Renderer;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.RendererKey;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.Capabilities;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedActionDefinition;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedActionDefinitionBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedActionDefinitionKey;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 import com.google.common.util.concurrent.FutureCallback;
  34 import com.google.common.util.concurrent.Futures;
  35
  36 public class ActionDefinitionListener extends DataTreeChangeHandler<ActionDefinition> {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(ActionDefinitionListener.class);
  39     private static final InstanceIdentifier<Capabilities> CAPABILITIES_IID = InstanceIdentifier.builder(Renderers.class)
  40         .child(Renderer.class, new RendererKey(IovisorRenderer.RENDERER_NAME))
  41         .child(Capabilities.class)
  42         .build();
  43     private static String PUT = "stored";
  44     private static String DELETED = "removed";
  45
  46     public ActionDefinitionListener(DataBroker dataBroker) {
  47         super(dataBroker);
  48         registerDataTreeChangeListener(new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
  49                 InstanceIdentifier.builder(SubjectFeatureDefinitions.class).child(ActionDefinition.class).build()));
  50     }
  51
  52     private SupportedActionDefinition createSupportedActionDefinition(Action action) {
  53         return new SupportedActionDefinitionBuilder().setActionDefinitionId(action.getId())
  54             .setSupportedParameterValues(action.getSupportedParameterValues())
  55             .build();
  56     }
  57
  58     private FutureCallback<Void> logDebugResult(final SupportedActionDefinitionKey supportedActionDefinitionKey,
  59             final String putOrDeleted) {
  60         return new FutureCallback<Void>() {
  61
  62             @Override
  63             public void onSuccess(Void result) {
  64                 LOG.debug("Capability of renerer {} was {}: {}", IovisorRenderer.RENDERER_NAME.getValue(), putOrDeleted,
  65                         supportedActionDefinitionKey.getActionDefinitionId().getValue());
  66             }
  67
  68             @Override
  69             public void onFailure(Throwable t) {
  70                 LOG.error("Capability of renderer {} was NOT {}: {}", IovisorRenderer.RENDERER_NAME.getValue(),
  71                         putOrDeleted, supportedActionDefinitionKey.getActionDefinitionId().getValue(), t);
  72             }
  73         };
  74     }
  75
  76     @Override
  77     protected void onWrite(DataObjectModification<ActionDefinition> rootNode,
  78             InstanceIdentifier<ActionDefinition> rootIdentifier) {
  79         onSubtreeModified(rootNode, rootIdentifier);
  80     }
  81
  82     @Override
  83     protected void onDelete(DataObjectModification<ActionDefinition> rootNode,
  84             InstanceIdentifier<ActionDefinition> rootIdentifier) {
  85         ActionDefinition actionDefinitionBefore = checkNotNull(rootNode.getDataBefore());
  86         Action ourAction = SubjectFeatures.getAction(actionDefinitionBefore.getId());
  87         if (ourAction != null) {
  88             SupportedActionDefinitionKey supportedActionDefinitionKey =
  89                     new SupportedActionDefinitionKey(ourAction.getId());
  90             WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  91             wTx.delete(LogicalDatastoreType.OPERATIONAL,
  92                     CAPABILITIES_IID.child(SupportedActionDefinition.class, supportedActionDefinitionKey));
  93             Futures.addCallback(wTx.submit(), logDebugResult(supportedActionDefinitionKey, DELETED));
  94         }
  95     }
  96
  97     @Override
  98     protected void onSubtreeModified(DataObjectModification<ActionDefinition> rootNode,
  99             InstanceIdentifier<ActionDefinition> rootIdentifier) {
 100         ActionDefinition actionDefinitionAfter = checkNotNull(rootNode.getDataAfter());
 101         Action ourAction = SubjectFeatures.getAction(actionDefinitionAfter.getId());
 102         if (ourAction != null) {
 103             SupportedActionDefinition supportedActionDefinition = createSupportedActionDefinition(ourAction);
 104             WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
 105             wTx.put(LogicalDatastoreType.OPERATIONAL,
 106                     CAPABILITIES_IID.child(SupportedActionDefinition.class, supportedActionDefinition.getKey()),
 107                     supportedActionDefinition, true);
 108             Futures.addCallback(wTx.submit(), logDebugResult(supportedActionDefinition.getKey(), PUT));
 109         }
 110     }
 111 }