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 javax.annotation.Nonnull;
  14
  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.DataTreeIdentifier;
  18 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.groupbasedpolicy.renderer.iovisor.IovisorRenderer;
  21 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.SubjectFeatureDefinitions;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.subject.feature.definitions.ActionDefinition;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.Renderers;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.Renderer;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.RendererKey;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.Capabilities;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedActionDefinition;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedActionDefinitionBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.capabilities.SupportedActionDefinitionKey;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 import com.google.common.util.concurrent.FutureCallback;
  36 import com.google.common.util.concurrent.Futures;
  37 import com.google.common.util.concurrent.MoreExecutors;
  38
  39 public class ActionDefinitionListener extends DataTreeChangeHandler<ActionDefinition> {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(ActionDefinitionListener.class);
  42     private static final InstanceIdentifier<Capabilities> CAPABILITIES_IID = InstanceIdentifier.builder(Renderers.class)
  43         .child(Renderer.class, new RendererKey(IovisorRenderer.RENDERER_NAME))
  44         .child(Capabilities.class)
  45         .build();
  46     private static final String PUT = "stored";
  47     private static final String DELETED = "removed";
  48
  49     public ActionDefinitionListener(DataBroker dataBroker) {
  50         super(dataBroker);
  51         registerDataTreeChangeListener(new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
  52                 InstanceIdentifier.builder(SubjectFeatureDefinitions.class).child(ActionDefinition.class).build()));
  53     }
  54
  55     private SupportedActionDefinition createSupportedActionDefinition(Action action) {
  56         return new SupportedActionDefinitionBuilder().setActionDefinitionId(action.getId())
  57             .setSupportedParameterValues(action.getSupportedParameterValues())
  58             .build();
  59     }
  60
  61     private FutureCallback<Void> logDebugResult(final SupportedActionDefinitionKey supportedActionDefinitionKey,
  62             final String putOrDeleted) {
  63         return new FutureCallback<Void>() {
  64
  65             @Override
  66             public void onSuccess(Void result) {
  67                 LOG.debug("Capability of renerer {} was {}: {}", IovisorRenderer.RENDERER_NAME.getValue(), putOrDeleted,
  68                         supportedActionDefinitionKey.getActionDefinitionId().getValue());
  69             }
  70
  71             @Override
  72             public void onFailure(@Nonnull Throwable t) {
  73                 LOG.error("Capability of renderer {} was NOT {}: {}", IovisorRenderer.RENDERER_NAME.getValue(),
  74                         putOrDeleted, supportedActionDefinitionKey.getActionDefinitionId().getValue(), t);
  75             }
  76         };
  77     }
  78
  79     @Override
  80     protected void onWrite(DataObjectModification<ActionDefinition> rootNode,
  81             InstanceIdentifier<ActionDefinition> rootIdentifier) {
  82         onSubtreeModified(rootNode, rootIdentifier);
  83     }
  84
  85     @Override
  86     protected void onDelete(DataObjectModification<ActionDefinition> rootNode,
  87             InstanceIdentifier<ActionDefinition> rootIdentifier) {
  88         ActionDefinition actionDefinitionBefore = checkNotNull(rootNode.getDataBefore());
  89         Action ourAction = SubjectFeatures.getAction(actionDefinitionBefore.getId());
  90         if (ourAction != null) {
  91             SupportedActionDefinitionKey supportedActionDefinitionKey =
  92                     new SupportedActionDefinitionKey(ourAction.getId());
  93             WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  94             wTx.delete(LogicalDatastoreType.OPERATIONAL,
  95                     CAPABILITIES_IID.child(SupportedActionDefinition.class, supportedActionDefinitionKey));
  96             Futures.addCallback(wTx.submit(), logDebugResult(supportedActionDefinitionKey, DELETED), MoreExecutors.directExecutor());
  97         }
  98     }
  99
 100     @Override
 101     protected void onSubtreeModified(DataObjectModification<ActionDefinition> rootNode,
 102             InstanceIdentifier<ActionDefinition> rootIdentifier) {
 103         ActionDefinition actionDefinitionAfter = checkNotNull(rootNode.getDataAfter());
 104         Action ourAction = SubjectFeatures.getAction(actionDefinitionAfter.getId());
 105         if (ourAction != null) {
 106             SupportedActionDefinition supportedActionDefinition = createSupportedActionDefinition(ourAction);
 107             WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
 108             wTx.put(LogicalDatastoreType.OPERATIONAL,
 109                     CAPABILITIES_IID.child(SupportedActionDefinition.class, supportedActionDefinition.getKey()),
 110                     supportedActionDefinition, true);
 111             Futures.addCallback(wTx.submit(), logDebugResult(supportedActionDefinition.getKey(), PUT), MoreExecutors.directExecutor());
 112         }
 113     }
 114 }