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 com.google.common.base.Preconditions;
  11 import com.google.common.collect.ArrayListMultimap;
  12 import com.google.common.collect.Iterables;
  13 import com.google.common.collect.Multimap;
  14 import com.google.common.collect.Multimaps;
  15 import java.math.BigInteger;
  16 import org.opendaylight.mdsal.binding.api.DataBroker;
  17 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  18 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  19 import org.opendaylight.openflowplugin.applications.frm.FlowNodeConnectorInventoryTranslator;
  20 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  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.ListenerRegistration;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class FlowNodeConnectorInventoryTranslatorImpl extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector>
  31         implements FlowNodeConnectorInventoryTranslator {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeConnectorInventoryTranslatorImpl.class);
  34
  35     private ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> dataTreeChangeListenerRegistration;
  36
  37     private static final String SEPARATOR = ":";
  38
  39     private static final InstanceIdentifier<FlowCapableNodeConnector> II_TO_FLOW_CAPABLE_NODE_CONNECTOR
  40             = InstanceIdentifier.builder(Nodes.class)
  41             .child(Node.class)
  42             .child(NodeConnector.class)
  43             .augmentation(FlowCapableNodeConnector.class)
  44             .build();
  45
  46     private final Multimap<BigInteger, String> dpnToPortMultiMap = Multimaps
  47             .synchronizedListMultimap(ArrayListMultimap.<BigInteger, String>create());
  48
  49     @SuppressWarnings("IllegalCatch")
  50     public FlowNodeConnectorInventoryTranslatorImpl(final DataBroker dataBroker) {
  51         Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  52
  53         final DataTreeIdentifier<FlowCapableNodeConnector> treeId =
  54                 DataTreeIdentifier.create(LogicalDatastoreType.OPERATIONAL, getWildCardPath());
  55         try {
  56             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  57                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  58             dataTreeChangeListenerRegistration = looper.loopUntilNoException(() -> dataBroker
  59                     .registerDataTreeChangeListener(treeId, FlowNodeConnectorInventoryTranslatorImpl.this));
  60         } catch (final Exception e) {
  61             LOG.warn(" FlowNodeConnectorInventoryTranslatorImpl listener registration fail!");
  62             LOG.debug("FlowNodeConnectorInventoryTranslatorImpl DataTreeChangeListener registration fail ..", e);
  63             throw new
  64             IllegalStateException("FlowNodeConnectorInventoryTranslatorImpl startup fail! System needs restart.", e);
  65         }
  66     }
  67
  68     @Override
  69     protected InstanceIdentifier<FlowCapableNodeConnector> getWildCardPath() {
  70         return InstanceIdentifier.create(Nodes.class)
  71                 .child(Node.class)
  72                 .child(NodeConnector.class)
  73                 .augmentation(FlowCapableNodeConnector.class);
  74     }
  75
  76     @Override
  77     public void close() {
  78         if (dataTreeChangeListenerRegistration != null) {
  79             dataTreeChangeListenerRegistration.close();
  80             dataTreeChangeListenerRegistration = null;
  81         }
  82     }
  83
  84     @Override
  85     public void remove(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector del,
  86             InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  87         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
  88             LOG.debug("Node Connector removed");
  89             String nodeConnectorIdentifier = nodeConnIdent.firstKeyOf(NodeConnector.class)
  90                     .getId().getValue();
  91             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
  92
  93             dpnToPortMultiMap.remove(dpId, nodeConnectorIdentifier);
  94         }
  95     }
  96
  97     @Override
  98     public void update(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector original,
  99             FlowCapableNodeConnector update, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 100         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 101             LOG.debug("Node Connector updated");
 102             // Don't need to do anything as we are not considering updates here
 103         }
 104     }
 105
 106     @Override
 107     public void add(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector add,
 108             InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 109         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 110             LOG.debug("Node Connector added");
 111             String nodeConnectorIdentifier = nodeConnIdent
 112                     .firstKeyOf(NodeConnector.class).getId().getValue();
 113             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
 114
 115             if (!dpnToPortMultiMap.containsEntry(dpId, nodeConnectorIdentifier)) {
 116                 dpnToPortMultiMap.put(dpId, nodeConnectorIdentifier);
 117             } else {
 118                 LOG.error("Duplicate Event.Node Connector already added");
 119             }
 120         }
 121     }
 122
 123     private boolean compareInstanceIdentifierTail(InstanceIdentifier<?> identifier1,
 124                                   InstanceIdentifier<?> identifier2) {
 125         return Iterables.getLast(identifier1.getPathArguments())
 126                 .equals(Iterables.getLast(identifier2.getPathArguments()));
 127     }
 128
 129     @Override
 130     public boolean isNodeConnectorUpdated(BigInteger dpId, String portName) {
 131         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 132     }
 133
 134
 135     private BigInteger getDpIdFromPortName(String portName) {
 136         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 137         return new BigInteger(dpId);
 138     }
 139 }
 140