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

   1 package org.opendaylight.openflowplugin.applications.frm.impl;
   2
   3 import java.util.Collections;
   4
   5 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.table.update.OriginalTableBuilder;
   6 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.table.update.UpdatedTableBuilder;
   7 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
   8 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.TableRef;
   9 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.UpdateTableInputBuilder;
  11 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.features.TableFeatures;
  12 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  13 import java.util.concurrent.Callable;
  14 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26 import com.google.common.base.Preconditions;
  27
  28 public class TableForwarder extends AbstractListeningCommiter<TableFeatures> {
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(TableForwarder.class);
  31
  32     private ListenerRegistration<TableForwarder> listenerRegistration;
  33
  34     public TableForwarder (final ForwardingRulesManager manager, final DataBroker db) {
  35         super(manager, TableFeatures.class);
  36         Preconditions.checkNotNull(db, "DataBroker can not be null!");
  37         final DataTreeIdentifier<TableFeatures> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getWildCardPath());
  38
  39         try {
  40             SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
  41                     ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
  42             listenerRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<TableForwarder>>() {
  43                 @Override
  44                 public ListenerRegistration<TableForwarder> call() throws Exception {
  45                     return db.registerDataTreeChangeListener(treeId, TableForwarder.this);
  46                 }
  47             });
  48         } catch (final Exception e) {
  49             LOG.warn("FRM Table DataChange listener registration fail!");
  50             LOG.debug("FRM Table DataChange listener registration fail ..", e);
  51             throw new IllegalStateException("TableForwarder startup fail! System needs restart.", e);
  52         }
  53     }
  54
  55     @Override
  56     public void close() {
  57         if (listenerRegistration != null) {
  58             try {
  59                 listenerRegistration.close();
  60             } catch (Exception e) {
  61                 LOG.error("Error by stop FRM TableChangeListener.", e);
  62             }
  63             listenerRegistration = null;
  64         }
  65     }
  66
  67     @Override
  68     protected InstanceIdentifier<TableFeatures> getWildCardPath() {
  69         return InstanceIdentifier.create(Nodes.class).child(Node.class)
  70                 .augmentation(FlowCapableNode.class).child(Table.class).child(TableFeatures.class);
  71     }
  72
  73     @Override
  74     public void remove(final InstanceIdentifier<TableFeatures> identifier, final TableFeatures removeDataObj,
  75                        final InstanceIdentifier<FlowCapableNode> nodeIdent) {
  76       // DO Nothing
  77     }
  78
  79     @Override
  80     public void update(final InstanceIdentifier<TableFeatures> identifier,
  81                        final TableFeatures original, final TableFeatures update,
  82                        final InstanceIdentifier<FlowCapableNode> nodeIdent) {
  83         LOG.debug( "Received the Table Update request [Tbl id, node Id, original, upd" +
  84                        " " + identifier + " " + nodeIdent + " " + original + " " + update );
  85
  86         final TableFeatures originalTableFeatures = original;
  87         TableFeatures updatedTableFeatures ;
  88         if( null == update)
  89           updatedTableFeatures = original;
  90         else
  91           updatedTableFeatures = update;
  92
  93         final UpdateTableInputBuilder builder = new UpdateTableInputBuilder();
  94
  95         builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
  96
  97         InstanceIdentifier<Table> iiToTable = identifier.firstIdentifierOf(Table.class);
  98         builder.setTableRef(new TableRef(iiToTable));
  99
 100         builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
 101
 102         builder.setUpdatedTable(new UpdatedTableBuilder().setTableFeatures(
 103                 Collections.singletonList(updatedTableFeatures)).build());
 104
 105         builder.setOriginalTable(new OriginalTableBuilder().setTableFeatures(
 106                 Collections.singletonList(originalTableFeatures)).build());
 107         LOG.debug( "Invoking SalTableService " ) ;
 108
 109         if( this.provider.getSalTableService() != null )
 110                 LOG.debug( " Handle to SalTableServices" + this.provider.getSalTableService()) ;
 111         this.provider.getSalTableService().updateTable(builder.build());
 112
 113     }
 114
 115     @Override
 116     public void add(final InstanceIdentifier<TableFeatures> identifier, final TableFeatures addDataObj,
 117                     final InstanceIdentifier<FlowCapableNode> nodeIdent) {
 118        //DO NOthing
 119     }
 120
 121
 122 }