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.util.concurrent.Callable;
  29
  30 public class FlowNodeConnectorInventoryTranslatorImpl extends AbstractNodeConnectorCommitter<FlowCapableNodeConnector> implements FlowNodeConnectorInventoryTranslator {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeConnectorInventoryTranslatorImpl.class);
  33
  34     private ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> dataTreeChangeListenerRegistration;
  35
  36     public static final String SEPARATOR = ":";
  37
  38     private static final InstanceIdentifier<FlowCapableNodeConnector> II_TO_FLOW_CAPABLE_NODE_CONNECTOR
  39             = InstanceIdentifier.builder(Nodes.class)
  40             .child(Node.class)
  41             .child(NodeConnector.class)
  42             .augmentation(FlowCapableNodeConnector.class)
  43             .build();
  44
  45     private Multimap<Long,String> dpnToPortMultiMap = Multimaps.synchronizedListMultimap(ArrayListMultimap.<Long,String>create());
  46
  47     public FlowNodeConnectorInventoryTranslatorImpl(final ForwardingRulesManager manager, final DataBroker dataBroker){
  48         super(manager, FlowCapableNodeConnector.class);
  49         Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
  50
  51         final DataTreeIdentifier<FlowCapableNodeConnector> treeId =
  52                 new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL, getWildCardPath());
  53         try {
  54             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  55                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  56             dataTreeChangeListenerRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl>>() {
  57                 @Override
  58                 public ListenerRegistration<FlowNodeConnectorInventoryTranslatorImpl> call() throws Exception {
  59                     return dataBroker.registerDataTreeChangeListener(treeId, FlowNodeConnectorInventoryTranslatorImpl.this);
  60                 }
  61             });
  62         } catch (final Exception e) {
  63             LOG.warn(" FlowNodeConnectorInventoryTranslatorImpl listener registration fail!");
  64             LOG.debug("FlowNodeConnectorInventoryTranslatorImpl DataChange listener registration fail ..", e);
  65             throw new 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             try {
  81                 dataTreeChangeListenerRegistration.close();
  82             } catch (final Exception e) {
  83                 LOG.warn("Error by stop FRM FlowNodeConnectorInventoryTranslatorImpl: {}", e.getMessage());
  84                 LOG.debug("Error by stop FRM FlowNodeConnectorInventoryTranslatorImpl..", e);
  85             }
  86             dataTreeChangeListenerRegistration = null;
  87         }
  88     }
  89     @Override
  90     public void remove(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector del, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
  91         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
  92             LOG.info("Node Connector removed");
  93             String sNodeConnectorIdentifier = nodeConnIdent
  94                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
  95             long nDpId = getDpIdFromPortName(sNodeConnectorIdentifier);
  96             String portName = del.getName();
  97
  98             dpnToPortMultiMap.remove(nDpId, sNodeConnectorIdentifier);
  99         }
 100     }
 101
 102     @Override
 103     public void update(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector original, FlowCapableNodeConnector update, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 104         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
 105             LOG.info("Node Connector updated");
 106             //donot need to do anything as we are not considering updates here
 107         }
 108     }
 109
 110     @Override
 111     public void add(InstanceIdentifier<FlowCapableNodeConnector> identifier, FlowCapableNodeConnector add, InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent) {
 112         if(compareInstanceIdentifierTail(identifier,II_TO_FLOW_CAPABLE_NODE_CONNECTOR)){
 113             LOG.info("Node Connector added");
 114             String sNodeConnectorIdentifier = nodeConnIdent
 115                     .firstKeyOf(NodeConnector.class, NodeConnectorKey.class).getId().getValue();
 116             long nDpId = getDpIdFromPortName(sNodeConnectorIdentifier);
 117
 118             String portName = add.getName();
 119             if(!dpnToPortMultiMap.containsEntry(nDpId,sNodeConnectorIdentifier)) {
 120                 dpnToPortMultiMap.put(nDpId, sNodeConnectorIdentifier);
 121             }else{
 122                 LOG.error("Duplicate Event.Node Connector already added");
 123             }
 124         }
 125     }
 126
 127     private boolean compareInstanceIdentifierTail(InstanceIdentifier<?> identifier1,
 128                                   InstanceIdentifier<?> identifier2) {
 129         return Iterables.getLast(identifier1.getPathArguments()).equals(Iterables.getLast(identifier2.getPathArguments()));
 130     }
 131
 132     @Override
 133     public boolean isNodeConnectorUpdated(long dpId, String portName){
 134         return dpnToPortMultiMap.containsEntry(dpId,portName) ;
 135     }
 136
 137
 138     private long getDpIdFromPortName(String portName) {
 139         String dpId = portName.substring(portName.indexOf(SEPARATOR) + 1, portName.lastIndexOf(SEPARATOR));
 140         return Long.parseLong(dpId);
 141     }
 142 }
 143