opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/MeterForwarder.java

   1 /**
   2  * Copyright (c) 2014 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 package org.opendaylight.controller.frm.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import org.opendaylight.controller.frm.ForwardingRulesManager;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.AddMeterInputBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.RemoveMeterInputBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.UpdateMeterInputBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.meter.update.OriginalMeterBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.meter.update.UpdatedMeterBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterRef;
  28 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * MeterForwarder
  35  * It implements {@link org.opendaylight.controller.md.sal.binding.api.DataChangeListener}}
  36  * for WildCardedPath to {@link Meter} and ForwardingRulesCommiter interface for methods:
  37  *  add, update and remove {@link Meter} processing for
  38  *  {@link org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent}.
  39  *
  40  * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
  41  *
  42  */
  43 public class MeterForwarder extends AbstractListeningCommiter<Meter> {
  44
  45     private static final Logger LOG = LoggerFactory.getLogger(MeterForwarder.class);
  46
  47     private ListenerRegistration<DataChangeListener> listenerRegistration;
  48
  49     public MeterForwarder (final ForwardingRulesManager manager, final DataBroker db) {
  50         super(manager, Meter.class);
  51         Preconditions.checkNotNull(db, "DataBroker can not be null!");
  52         this.listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  53                 getWildCardPath(), MeterForwarder.this, DataChangeScope.SUBTREE);
  54     }
  55
  56     @Override
  57     public void close() {
  58         if (listenerRegistration != null) {
  59             try {
  60                 listenerRegistration.close();
  61             } catch (Exception e) {
  62                 LOG.error("Error by stop FRM MeterChangeListener.", e);
  63             }
  64             listenerRegistration = null;
  65         }
  66     }
  67
  68     @Override
  69     protected InstanceIdentifier<Meter> getWildCardPath() {
  70         return InstanceIdentifier.create(Nodes.class).child(Node.class)
  71                 .augmentation(FlowCapableNode.class).child(Meter.class);
  72     }
  73
  74     @Override
  75     public void remove(final InstanceIdentifier<Meter> identifier, final Meter removeDataObj,
  76                        final InstanceIdentifier<FlowCapableNode> nodeIdent) {
  77
  78         final RemoveMeterInputBuilder builder = new RemoveMeterInputBuilder(removeDataObj);
  79
  80         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
  81         builder.setMeterRef(new MeterRef(identifier));
  82         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
  83         this.provider.getSalMeterService().removeMeter(builder.build());
  84     }
  85
  86     @Override
  87     public void update(final InstanceIdentifier<Meter> identifier,
  88                        final Meter original, final Meter update,
  89                        final InstanceIdentifier<FlowCapableNode> nodeIdent) {
  90
  91         final UpdateMeterInputBuilder builder = new UpdateMeterInputBuilder();
  92
  93         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
  94         builder.setMeterRef(new MeterRef(identifier));
  95         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
  96         builder.setUpdatedMeter((new UpdatedMeterBuilder(update)).build());
  97         builder.setOriginalMeter((new OriginalMeterBuilder(original)).build());
  98
  99         this.provider.getSalMeterService().updateMeter(builder.build());
 100     }
 101
 102     @Override
 103     public void add(final InstanceIdentifier<Meter> identifier, final Meter addDataObj,
 104                     final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 105
 106         final AddMeterInputBuilder builder = new AddMeterInputBuilder(addDataObj);
 107
 108         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
 109         builder.setMeterRef(new MeterRef(identifier));
 110         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
 111         this.provider.getSalMeterService().addMeter(builder.build());
 112     }
 113 }
 114