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.openflowplugin.common.wait.SimpleTaskRetryLooper;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  26 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 public final class FlowNodeConnectorInventoryTranslatorImpl
  32         extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector>
  33         implements FlowNodeConnectorInventoryTranslator {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeConnectorInventoryTranslatorImpl.class);
  36
  37     private ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> dataTreeChangeListenerRegistration;
  38
  39     private static final String SEPARATOR = ":";
  40
  41     private static final InstanceIdentifier<FlowCapableNodeConnector> II_TO_FLOW_CAPABLE_NODE_CONNECTOR
  42             = InstanceIdentifier.builder(Nodes.class)
  43             .child(Node.class)
  44             .child(NodeConnector.class)
  45             .augmentation(FlowCapableNodeConnector.class)
  46             .build();
  47
  48     private final Multimap<BigInteger, String> dpnToPortMultiMap = Multimaps
  49             .synchronizedListMultimap(ArrayListMultimap.create());
  50
  51     @SuppressWarnings("IllegalCatch")
  52     public FlowNodeConnectorInventoryTranslatorImpl(final DataBroker dataBroker) {
  53         requireNonNull(dataBroker, "DataBroker can not be null!");
  54
  55         final DataTreeIdentifier<FlowCapableNodeConnector> treeId =
  56                 DataTreeIdentifier.create(LogicalDatastoreType.OPERATIONAL, getWildCardPath());
  57         try {
  58             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  59                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  60             dataTreeChangeListenerRegistration = looper.loopUntilNoException(() -> dataBroker
  61                     .registerDataTreeChangeListener(treeId, FlowNodeConnectorInventoryTranslatorImpl.this));
  62         } catch (final Exception e) {
  63             LOG.warn(" FlowNodeConnectorInventoryTranslatorImpl listener registration fail!");
  64             LOG.debug("FlowNodeConnectorInventoryTranslatorImpl DataTreeChangeListener registration fail ..", e);
  65             throw new
  66             IllegalStateException("FlowNodeConnectorInventoryTranslatorImpl startup fail! System needs restart.", e);
  67         }
  68     }
  69
  70     @Override
  71     protected InstanceIdentifier<FlowCapableNodeConnector> getWildCardPath() {
  72         return InstanceIdentifier.create(Nodes.class)
  73                 .child(Node.class)
  74                 .child(NodeConnector.class)
  75                 .augmentation(FlowCapableNodeConnector.class);
  76     }
  77
  78     @Override
  79     public void close() {
  80         if (dataTreeChangeListenerRegistration != null) {
  81             dataTreeChangeListenerRegistration.close();
  82             dataTreeChangeListenerRegistration = null;
  83         }
  84     }
  85
  86     @Override
  87     public void remove(final InstanceIdentifier<FlowCapableNodeConnector> identifier,
  88             final FlowCapableNodeConnector del, final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  89         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
  90             LOG.debug("Node Connector removed");
  91             String nodeConnectorIdentifier = nodeConnIdent.firstKeyOf(NodeConnector.class)
  92                     .getId().getValue();
  93             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
  94
  95             dpnToPortMultiMap.remove(dpId, nodeConnectorIdentifier);
  96         }
  97     }
  98
  99     @Override
 100     public void update(final InstanceIdentifier<FlowCapableNodeConnector> identifier,
 101             final FlowCapableNodeConnector original, final FlowCapableNodeConnector update,
 102             final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 103         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 104             LOG.debug("Node Connector updated");
 105             // Don't need to do anything as we are not considering updates here
 106         }
 107     }
 108
 109     @Override
 110     public void add(final InstanceIdentifier<FlowCapableNodeConnector> identifier, final FlowCapableNodeConnector add,
 111             final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 112         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 113             LOG.debug("Node Connector added");
 114             String nodeConnectorIdentifier = nodeConnIdent
 115                     .firstKeyOf(NodeConnector.class).getId().getValue();
 116             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
 117
 118             if (!dpnToPortMultiMap.containsEntry(dpId, nodeConnectorIdentifier)) {
 119                 dpnToPortMultiMap.put(dpId, nodeConnectorIdentifier);
 120             } else {
 121                 LOG.error("Duplicate Event.Node Connector already added");
 122             }
 123         }
 124     }
 125
 126     private static boolean compareInstanceIdentifierTail(final InstanceIdentifier<?> identifier1,
 127                                   final InstanceIdentifier<?> identifier2) {
 128         return Iterables.getLast(identifier1.getPathArguments())
 129                 .equals(Iterables.getLast(identifier2.getPathArguments()));
 130     }
 131
 132     @Override
 133     public boolean isNodeConnectorUpdated(final BigInteger dpId, final String portName) {
 134         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 135     }
 136
 137
 138     private static BigInteger getDpIdFromPortName(final String portName) {
 139         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 140         return new BigInteger(dpId);
 141     }
 142 }
 143