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
   9 package org.opendaylight.openflowplugin.applications.frm.impl;
  10
  11 import com.google.common.base.Preconditions;
  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.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.openflowplugin.applications.frm.FlowNodeConnectorInventoryTranslator;
  21 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  22 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  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 public class FlowNodeConnectorInventoryTranslatorImpl extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector>
  34         implements FlowNodeConnectorInventoryTranslator {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeConnectorInventoryTranslatorImpl.class);
  37
  38     private ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> dataTreeChangeListenerRegistration;
  39
  40     private static final String SEPARATOR = ":";
  41
  42     private static final InstanceIdentifier<FlowCapableNodeConnector> II_TO_FLOW_CAPABLE_NODE_CONNECTOR
  43             = InstanceIdentifier.builder(Nodes.class)
  44             .child(Node.class)
  45             .child(NodeConnector.class)
  46             .augmentation(FlowCapableNodeConnector.class)
  47             .build();
  48
  49     private final Multimap<BigInteger, String> dpnToPortMultiMap = Multimaps
  50             .synchronizedListMultimap(ArrayListMultimap.<BigInteger, String>create());
  51
  52     @SuppressWarnings("IllegalCatch")
  53     public FlowNodeConnectorInventoryTranslatorImpl(final ForwardingRulesManager manager, final DataBroker dataBroker) {
  54         super(manager);
  55         Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  56
  57         final DataTreeIdentifier<FlowCapableNodeConnector> treeId =
  58                 new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL, getWildCardPath());
  59         try {
  60             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  61                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  62             dataTreeChangeListenerRegistration = looper.loopUntilNoException(() -> dataBroker
  63                     .registerDataTreeChangeListener(treeId, FlowNodeConnectorInventoryTranslatorImpl.this));
  64         } catch (final Exception e) {
  65             LOG.warn(" FlowNodeConnectorInventoryTranslatorImpl listener registration fail!");
  66             LOG.debug("FlowNodeConnectorInventoryTranslatorImpl DataTreeChangeListener registration fail ..", e);
  67             throw new
  68             IllegalStateException("FlowNodeConnectorInventoryTranslatorImpl startup fail! System needs restart.", e);
  69         }
  70     }
  71
  72     @Override
  73     protected InstanceIdentifier<FlowCapableNodeConnector> getWildCardPath() {
  74         return InstanceIdentifier.create(Nodes.class)
  75                 .child(Node.class)
  76                 .child(NodeConnector.class)
  77                 .augmentation(FlowCapableNodeConnector.class);
  78     }
  79
  80     @Override
  81     public void close() {
  82         if (dataTreeChangeListenerRegistration != null) {
  83             dataTreeChangeListenerRegistration.close();
  84             dataTreeChangeListenerRegistration = null;
  85         }
  86     }
  87
  88     @Override
  89     public void remove(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector del,
  90             InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  91         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
  92             LOG.debug("Node Connector removed");
  93             String nodeConnectorIdentifier = nodeConnIdent.firstKeyOf(NodeConnector.class, NodeConnectorKey.class)
  94                     .getId().getValue();
  95             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
  96
  97             dpnToPortMultiMap.remove(dpId, nodeConnectorIdentifier);
  98         }
  99     }
 100
 101     @Override
 102     public void update(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector original,
 103             FlowCapableNodeConnector update, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 104         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 105             LOG.debug("Node Connector updated");
 106             // Don't need to do anything as we are not considering updates here
 107         }
 108     }
 109
 110     @Override
 111     public void add(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector add,
 112             InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 113         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 114             LOG.debug("Node Connector added");
 115             String nodeConnectorIdentifier = nodeConnIdent
 116                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
 117             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
 118
 119             if (!dpnToPortMultiMap.containsEntry(dpId, nodeConnectorIdentifier)) {
 120                 dpnToPortMultiMap.put(dpId, nodeConnectorIdentifier);
 121             } else {
 122                 LOG.error("Duplicate Event.Node Connector already added");
 123             }
 124         }
 125     }
 126
 127     private boolean compareInstanceIdentifierTail(InstanceIdentifier<?> identifier1,
 128                                   InstanceIdentifier<?> identifier2) {
 129         return Iterables.getLast(identifier1.getPathArguments())
 130                 .equals(Iterables.getLast(identifier2.getPathArguments()));
 131     }
 132
 133     @Override
 134     public boolean isNodeConnectorUpdated(BigInteger dpId, String portName) {
 135         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 136     }
 137
 138
 139     private BigInteger getDpIdFromPortName(String portName) {
 140         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 141         return new BigInteger(dpId);
 142     }
 143 }
 144