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.node.NodeConnectorKey;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  27 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class FlowNodeConnectorInventoryTranslatorImpl 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.<BigInteger, String>create());
  50
  51     @SuppressWarnings("IllegalCatch")
  52     public FlowNodeConnectorInventoryTranslatorImpl(final DataBroker dataBroker) {
  53         Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  54
  55         final DataTreeIdentifier<FlowCapableNodeConnector> treeId =
  56                 new DataTreeIdentifier<>(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(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector del,
  88             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, NodeConnectorKey.class)
  92                     .getId().getValue();
  93             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
  94
  95             dpnToPortMultiMap.remove(dpId, nodeConnectorIdentifier);
  96         }
  97     }
  98
  99     @Override
 100     public void update(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector original,
 101             FlowCapableNodeConnector update, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 102         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 103             LOG.debug("Node Connector updated");
 104             // Don't need to do anything as we are not considering updates here
 105         }
 106     }
 107
 108     @Override
 109     public void add(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector add,
 110             InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 111         if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE_CONNECTOR)) {
 112             LOG.debug("Node Connector added");
 113             String nodeConnectorIdentifier = nodeConnIdent
 114                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
 115             BigInteger dpId = getDpIdFromPortName(nodeConnectorIdentifier);
 116
 117             if (!dpnToPortMultiMap.containsEntry(dpId, nodeConnectorIdentifier)) {
 118                 dpnToPortMultiMap.put(dpId, nodeConnectorIdentifier);
 119             } else {
 120                 LOG.error("Duplicate Event.Node Connector already added");
 121             }
 122         }
 123     }
 124
 125     private boolean compareInstanceIdentifierTail(InstanceIdentifier<?> identifier1,
 126                                   InstanceIdentifier<?> identifier2) {
 127         return Iterables.getLast(identifier1.getPathArguments())
 128                 .equals(Iterables.getLast(identifier2.getPathArguments()));
 129     }
 130
 131     @Override
 132     public boolean isNodeConnectorUpdated(BigInteger dpId, String portName) {
 133         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 134     }
 135
 136
 137     private BigInteger getDpIdFromPortName(String portName) {
 138         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 139         return new BigInteger(dpId);
 140     }
 141 }
 142