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.*;
  13 import org.opendaylight.controller.md.sal.binding.api.*;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.openflowplugin.applications.frm.FlowNodeConnectorInventoryTranslator;
  16 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  17 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  23 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 import java.math.BigInteger;
  29 import java.util.concurrent.Callable;
  30
  31 public class FlowNodeConnectorInventoryTranslatorImpl extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector> implements FlowNodeConnectorInventoryTranslator {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeConnectorInventoryTranslatorImpl.class);
  34
  35     private ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> dataTreeChangeListenerRegistration;
  36
  37     public static final String SEPARATOR = ":";
  38
  39     private static final InstanceIdentifier<FlowCapableNodeConnector> II_TO_FLOW_CAPABLE_NODE_CONNECTOR
  40             = InstanceIdentifier.builder(Nodes.class)
  41             .child(Node.class)
  42             .child(NodeConnector.class)
  43             .augmentation(FlowCapableNodeConnector.class)
  44             .build();
  45
  46     private Multimap<BigInteger,String> dpnToPortMultiMap = Multimaps.synchronizedListMultimap(ArrayListMultimap.<BigInteger,String>create());
  47
  48     public FlowNodeConnectorInventoryTranslatorImpl(final ForwardingRulesManager manager, final DataBroker dataBroker){
  49         super(manager, FlowCapableNodeConnector.class);
  50         Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  51
  52         final DataTreeIdentifier<FlowCapableNodeConnector> treeId =
  53                 new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL, getWildCardPath());
  54         try {
  55             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  56                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  57             dataTreeChangeListenerRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl>>() {
  58                 @Override
  59                 public ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> call() throws Exception {
  60                     return dataBroker.registerDataTreeChangeListener(treeId, FlowNodeConnectorInventoryTranslatorImpl.this);
  61                 }
  62             });
  63         } catch (final Exception e) {
  64             LOG.warn(" FlowNodeConnectorInventoryTranslatorImpl listener registration fail!");
  65             LOG.debug("FlowNodeConnectorInventoryTranslatorImpl DataChange listener registration fail ..", e);
  66             throw new 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             try {
  82                 dataTreeChangeListenerRegistration.close();
  83             } catch (final Exception e) {
  84                 LOG.warn("Error by stop FRM FlowNodeConnectorInventoryTranslatorImpl: {}", e.getMessage());
  85                 LOG.debug("Error by stop FRM FlowNodeConnectorInventoryTranslatorImpl..", e);
  86             }
  87             dataTreeChangeListenerRegistration = null;
  88         }
  89     }
  90     @Override
  91     public void remove(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector del, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  92         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
  93             LOG.info("Node Connector removed");
  94             String sNodeConnectorIdentifier = nodeConnIdent
  95                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
  96             BigInteger nDpId = getDpIdFromPortName(sNodeConnectorIdentifier);
  97             String portName = del.getName();
  98
  99             dpnToPortMultiMap.remove(nDpId, sNodeConnectorIdentifier);
 100         }
 101     }
 102
 103     @Override
 104     public void update(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector original, FlowCapableNodeConnector update, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 105         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
 106             LOG.info("Node Connector updated");
 107             //donot need to do anything as we are not considering updates here
 108         }
 109     }
 110
 111     @Override
 112     public void add(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector add, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 113         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
 114             LOG.info("Node Connector added");
 115             String sNodeConnectorIdentifier = nodeConnIdent
 116                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
 117             BigInteger nDpId = getDpIdFromPortName(sNodeConnectorIdentifier);
 118
 119             String portName = add.getName();
 120             if(!dpnToPortMultiMap.containsEntry(nDpId,sNodeConnectorIdentifier)) {
 121                 dpnToPortMultiMap.put(nDpId, sNodeConnectorIdentifier);
 122             }else{
 123                 LOG.error("Duplicate Event.Node Connector already added");
 124             }
 125         }
 126     }
 127
 128     private boolean compareInstanceIdentifierTail(InstanceIdentifier<?> identifier1,
 129                                   InstanceIdentifier<?> identifier2) {
 130         return Iterables.getLast(identifier1.getPathArguments()).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