applications/forwardingrules-manager/src/main/java/org/opendaylight/openflowplugin/applications/frm/impl/FlowNodeConnectorInventoryTranslatorImpl.java

   1 /*
   2  * Copyright (c) 2015, 2017 Ericsson India Global Services Pvt Ltd. 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.openflowplugin.applications.frm.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.ArrayListMultimap;
  13 import com.google.common.collect.Iterables;
  14 import com.google.common.collect.Multimap;
  15 import com.google.common.collect.Multimaps;
  16 import java.math.BigInteger;
  17 import org.opendaylight.mdsal.binding.api.DataBroker;
  18 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  19 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  20 import org.opendaylight.openflowplugin.applications.frm.FlowNodeConnectorInventoryTranslator;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  25 import org.opendaylight.yangtools.concepts.Registration;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public final class FlowNodeConnectorInventoryTranslatorImpl
  31         extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector>
  32         implements FlowNodeConnectorInventoryTranslator {
  33     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeConnectorInventoryTranslatorImpl.class);
  34     private static final String SEPARATOR = ":";
  35     private static final InstanceIdentifier<FlowCapableNodeConnector> II_TO_FLOW_CAPABLE_NODE_CONNECTOR =
  36         InstanceIdentifier.builder(Nodes.class)
  37             .child(Node.class)
  38             .child(NodeConnector.class)
  39             .augmentation(FlowCapableNodeConnector.class)
  40             .build();
  41
  42     private Registration listenerRegistration;
  43
  44     private final Multimap<BigInteger, String> dpnToPortMultiMap = Multimaps.synchronizedListMultimap(
  45         ArrayListMultimap.create());
  46
  47     public FlowNodeConnectorInventoryTranslatorImpl(final DataBroker dataBroker) {
  48         requireNonNull(dataBroker, "DataBroker can not be null!");
  49         listenerRegistration = dataBroker.registerDataTreeChangeListener(
  50             DataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, getWildCardPath()), this);
  51     }
  52
  53     @Override
  54     protected InstanceIdentifier<FlowCapableNodeConnector> getWildCardPath() {
  55         return InstanceIdentifier.create(Nodes.class)
  56                 .child(Node.class)
  57                 .child(NodeConnector.class)
  58                 .augmentation(FlowCapableNodeConnector.class);
  59     }
  60
  61     @Override
  62     public void close() {
  63         if (listenerRegistration != null) {
  64             listenerRegistration.close();
  65             listenerRegistration = null;
  66         }
  67     }
  68
  69     @Override
  70     public void remove(final InstanceIdentifier<FlowCapableNodeConnector> identifier,
  71             final FlowCapableNodeConnector del, final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  72         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
  73             LOG.debug("Node Connector removed");
  74             String nodeConnectorIdentifier = nodeConnIdent.firstKeyOf(NodeConnector.class)
  75                     .getId().getValue();
  76             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
  77
  78             dpnToPortMultiMap.remove(dpId, nodeConnectorIdentifier);
  79         }
  80     }
  81
  82     @Override
  83     public void update(final InstanceIdentifier<FlowCapableNodeConnector> identifier,
  84             final FlowCapableNodeConnector original, final FlowCapableNodeConnector update,
  85             final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  86         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
  87             LOG.debug("Node Connector updated");
  88             // Don't need to do anything as we are not considering updates here
  89         }
  90     }
  91
  92     @Override
  93     public void add(final InstanceIdentifier<FlowCapableNodeConnector> identifier, final FlowCapableNodeConnector add,
  94             final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  95         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
  96             LOG.debug("Node Connector added");
  97             String nodeConnectorIdentifier = nodeConnIdent
  98                     .firstKeyOf(NodeConnector.class).getId().getValue();
  99             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
 100
 101             if (!dpnToPortMultiMap.containsEntry(dpId, nodeConnectorIdentifier)) {
 102                 dpnToPortMultiMap.put(dpId, nodeConnectorIdentifier);
 103             } else {
 104                 LOG.error("Duplicate Event.Node Connector already added");
 105             }
 106         }
 107     }
 108
 109     private static boolean compareInstanceIdentifierTail(final InstanceIdentifier<?> identifier1,
 110                                   final InstanceIdentifier<?> identifier2) {
 111         return Iterables.getLast(identifier1.getPathArguments())
 112                 .equals(Iterables.getLast(identifier2.getPathArguments()));
 113     }
 114
 115     @Override
 116     public boolean isNodeConnectorUpdated(final BigInteger dpId, final String portName) {
 117         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 118     }
 119
 120
 121     private static BigInteger getDpIdFromPortName(final String portName) {
 122         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 123         return new BigInteger(dpId);
 124     }
 125 }
 126