applications/forwardingrules-manager/src/main/java/org/opendaylight/openflowplugin/applications/frm/impl/FlowNodeConnectorInventoryTranslatorImpl.java

   1 /**
   2  * Copyright (c) 2015 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 java.util.concurrent.Callable;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.openflowplugin.applications.frm.FlowNodeConnectorInventoryTranslator;
  22 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  23 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  29 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 public class FlowNodeConnectorInventoryTranslatorImpl extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector> 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 Multimap<BigInteger,String> dpnToPortMultiMap = Multimaps.synchronizedListMultimap(ArrayListMultimap.<BigInteger,String>create());
  50
  51     public FlowNodeConnectorInventoryTranslatorImpl(final ForwardingRulesManager manager, final DataBroker dataBroker){
  52         super(manager, FlowCapableNodeConnector.class);
  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(new Callable<ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl>>() {
  61                 @Override
  62                 public ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> call() throws Exception {
  63                     return dataBroker.registerDataTreeChangeListener(treeId, FlowNodeConnectorInventoryTranslatorImpl.this);
  64                 }
  65             });
  66         } catch (final Exception e) {
  67             LOG.warn(" FlowNodeConnectorInventoryTranslatorImpl listener registration fail!");
  68             LOG.debug("FlowNodeConnectorInventoryTranslatorImpl DataTreeChangeListener registration fail ..", e);
  69             throw new IllegalStateException("FlowNodeConnectorInventoryTranslatorImpl startup fail! System needs restart.", e);
  70         }
  71     }
  72
  73     @Override
  74     protected InstanceIdentifier<FlowCapableNodeConnector> getWildCardPath(){
  75         return InstanceIdentifier.create(Nodes.class)
  76                 .child(Node.class)
  77                 .child(NodeConnector.class)
  78                 .augmentation(FlowCapableNodeConnector.class);
  79     }
  80
  81     @Override
  82     public void close() {
  83         if (dataTreeChangeListenerRegistration != null) {
  84             try {
  85                 dataTreeChangeListenerRegistration.close();
  86             } catch (final Exception e) {
  87                 LOG.warn("Error by stop FRM FlowNodeConnectorInventoryTranslatorImpl: {}", e.getMessage());
  88                 LOG.debug("Error by stop FRM FlowNodeConnectorInventoryTranslatorImpl..", e);
  89             }
  90             dataTreeChangeListenerRegistration = null;
  91         }
  92     }
  93     @Override
  94     public void remove(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector del, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  95         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
  96             LOG.debug("Node Connector removed");
  97             String sNodeConnectorIdentifier = nodeConnIdent
  98                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
  99             BigInteger nDpId = getDpIdFromPortName(sNodeConnectorIdentifier);
 100
 101             dpnToPortMultiMap.remove(nDpId, sNodeConnectorIdentifier);
 102         }
 103     }
 104
 105     @Override
 106     public void update(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector original, FlowCapableNodeConnector update, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 107         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
 108             LOG.debug("Node Connector updated");
 109             //Don't need to do anything as we are not considering updates here
 110         }
 111     }
 112
 113     @Override
 114     public void add(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector add, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 115         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
 116             LOG.debug("Node Connector added");
 117             String sNodeConnectorIdentifier = nodeConnIdent
 118                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
 119             BigInteger nDpId = getDpIdFromPortName(sNodeConnectorIdentifier);
 120
 121             if(!dpnToPortMultiMap.containsEntry(nDpId,sNodeConnectorIdentifier)) {
 122                 dpnToPortMultiMap.put(nDpId, sNodeConnectorIdentifier);
 123             }else{
 124                 LOG.error("Duplicate Event.Node Connector already added");
 125             }
 126         }
 127     }
 128
 129     private boolean compareInstanceIdentifierTail(InstanceIdentifier<?> identifier1,
 130                                   InstanceIdentifier<?> identifier2) {
 131         return Iterables.getLast(identifier1.getPathArguments()).equals(Iterables.getLast(identifier2.getPathArguments()));
 132     }
 133
 134     @Override
 135     public boolean isNodeConnectorUpdated(BigInteger dpId, String portName){
 136         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 137     }
 138
 139
 140     private BigInteger getDpIdFromPortName(String portName) {
 141         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 142         return new BigInteger(dpId);
 143     }
 144 }
 145