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