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

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. 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 java.util.Collections;
  13 import java.util.concurrent.Callable;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  18 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.UpdateTableInputBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.table.update.OriginalTableBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.table.update.UpdatedTableBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.TableRef;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.features.TableFeatures;
  30 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 public class TableForwarder extends AbstractListeningCommiter<TableFeatures> {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(TableForwarder.class);
  38
  39     private ListenerRegistration<TableForwarder> listenerRegistration;
  40
  41     public TableForwarder (final ForwardingRulesManager manager, final DataBroker db) {
  42         super(manager, TableFeatures.class);
  43         Preconditions.checkNotNull(db, "DataBroker can not be null!");
  44         final DataTreeIdentifier<TableFeatures> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getWildCardPath());
  45
  46         try {
  47             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  48                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  49             listenerRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<TableForwarder>>() {
  50                 @Override
  51                 public ListenerRegistration<TableForwarder> call() throws Exception {
  52                     return db.registerDataTreeChangeListener(treeId, TableForwarder.this);
  53                 }
  54             });
  55         } catch (final Exception e) {
  56             LOG.warn("FRM Table DataChange listener registration fail!");
  57             LOG.debug("FRM Table DataChange listener registration fail ..", e);
  58             throw new IllegalStateException("TableForwarder startup fail! System needs restart.", e);
  59         }
  60     }
  61
  62     @Override
  63     public void close() {
  64         if (listenerRegistration != null) {
  65             try {
  66                 listenerRegistration.close();
  67             } catch (Exception e) {
  68                 LOG.warn("Error by stop FRM TableChangeListener: {}", e.getMessage());
  69                 LOG.debug("Error by stop FRM TableChangeListener..", e);
  70             }
  71             listenerRegistration = null;
  72         }
  73     }
  74
  75     @Override
  76     protected InstanceIdentifier<TableFeatures> getWildCardPath() {
  77         return InstanceIdentifier.create(Nodes.class).child(Node.class)
  78                 .augmentation(FlowCapableNode.class).child(Table.class).child(TableFeatures.class);
  79     }
  80
  81     @Override
  82     public void remove(final InstanceIdentifier<TableFeatures> identifier, final TableFeatures removeDataObj,
  83                        final InstanceIdentifier<FlowCapableNode> nodeIdent) {
  84       // DO Nothing
  85     }
  86
  87     @Override
  88     public void update(final InstanceIdentifier<TableFeatures> identifier,
  89                        final TableFeatures original, final TableFeatures update,
  90                        final InstanceIdentifier<FlowCapableNode> nodeIdent) {
  91         LOG.debug( "Received the Table Update request [Tbl id, node Id, original, upd" +
  92                        " " + identifier + " " + nodeIdent + " " + original + " " + update );
  93
  94         final TableFeatures originalTableFeatures = original;
  95         TableFeatures updatedTableFeatures ;
  96         if( null == update)
  97           updatedTableFeatures = original;
  98         else
  99           updatedTableFeatures = update;
 100
 101         final UpdateTableInputBuilder builder = new UpdateTableInputBuilder();
 102
 103         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
 104
 105         InstanceIdentifier<Table> iiToTable = identifier.firstIdentifierOf(Table.class);
 106         builder.setTableRef(new TableRef(iiToTable));
 107
 108         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
 109
 110         builder.setUpdatedTable(new UpdatedTableBuilder().setTableFeatures(
 111                 Collections.singletonList(updatedTableFeatures)).build());
 112
 113         builder.setOriginalTable(new OriginalTableBuilder().setTableFeatures(
 114                 Collections.singletonList(originalTableFeatures)).build());
 115         LOG.debug( "Invoking SalTableService " ) ;
 116
 117         if( this.provider.getSalTableService() != null )
 118                 LOG.debug( " Handle to SalTableServices" + this.provider.getSalTableService()) ;
 119         this.provider.getSalTableService().updateTable(builder.build());
 120
 121     }
 122
 123     @Override
 124     public void add(final InstanceIdentifier<TableFeatures> identifier, final TableFeatures addDataObj,
 125                     final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 126        //DO NOthing
 127     }
 128
 129
 130 }