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