southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/SouthboundProvider.java

   1 /*
   2  * Copyright (c) 2014 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 package org.opendaylight.ovsdb.southbound;
   9
  10 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  11 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  12 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  13 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  14 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
  15 import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
  16 import org.opendaylight.ovsdb.lib.OvsdbConnection;
  17 import org.opendaylight.ovsdb.lib.impl.OvsdbConnectionService;
  18 import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvoker;
  19 import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvokerImpl;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopologyBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 import com.google.common.base.Optional;
  30 import com.google.common.util.concurrent.CheckedFuture;
  31
  32 public class SouthboundProvider implements BindingAwareProvider, AutoCloseable {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(SouthboundProvider.class);
  35     private DataBroker db;
  36     private OvsdbConnectionManager cm;
  37 //    private OvsdbNodeDataChangeListener ovsdbNodeListener;
  38 //    private OvsdbManagedNodeDataChangeListener ovsdbManagedNodeListener;
  39 //    private OvsdbTerminationPointDataChangeListener ovsdbTerminationPointListener;
  40     private TransactionInvoker txInvoker;
  41     private OvsdbDataChangeListener ovsdbDataChangeListener;
  42
  43
  44     @Override
  45     public void onSessionInitiated(ProviderContext session) {
  46         LOG.info("SouthboundProvider Session Initiated");
  47         db = session.getSALService(DataBroker.class);
  48         this.txInvoker = new TransactionInvokerImpl(db);
  49         cm = new OvsdbConnectionManager(db,txInvoker);
  50         ovsdbDataChangeListener = new OvsdbDataChangeListener(db,cm);
  51 //        ovsdbNodeListener = new OvsdbNodeDataChangeListener(db, cm);
  52 //        ovsdbManagedNodeListener = new OvsdbManagedNodeDataChangeListener(db, cm);
  53 //        ovsdbTerminationPointListener = new OvsdbTerminationPointDataChangeListener(db, cm);
  54         initializeOvsdbTopology(LogicalDatastoreType.OPERATIONAL);
  55         initializeOvsdbTopology(LogicalDatastoreType.CONFIGURATION);
  56         OvsdbConnection ovsdbConnection = new OvsdbConnectionService();
  57         ovsdbConnection.registerConnectionListener(cm);
  58         ovsdbConnection.startOvsdbManager(SouthboundConstants.DEFAULT_OVSDB_PORT);
  59     }
  60
  61     @Override
  62     public void close() throws Exception {
  63         LOG.info("SouthboundProvider Closed");
  64         cm.close();
  65         ovsdbDataChangeListener.close();
  66 //        ovsdbNodeListener.close();
  67 //        ovsdbManagedNodeListener.close();
  68 //        ovsdbTerminationPointListener.close();
  69     }
  70
  71     private void initializeOvsdbTopology(LogicalDatastoreType type) {
  72         InstanceIdentifier<Topology> path = InstanceIdentifier
  73                 .create(NetworkTopology.class)
  74                 .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
  75         ReadWriteTransaction transaction = db.newReadWriteTransaction();
  76         initializeTopology(transaction,type);
  77         CheckedFuture<Optional<Topology>, ReadFailedException> ovsdbTp = transaction.read(type, path);
  78         try {
  79             if (!ovsdbTp.get().isPresent()) {
  80                 TopologyBuilder tpb = new TopologyBuilder();
  81                 tpb.setTopologyId(SouthboundConstants.OVSDB_TOPOLOGY_ID);
  82                 transaction.put(type, path, tpb.build());
  83                 transaction.submit();
  84             } else {
  85                 transaction.cancel();
  86             }
  87         } catch (Exception e) {
  88             LOG.error("Error initializing ovsdb topology {}",e);
  89         }
  90     }
  91
  92     private void initializeTopology(ReadWriteTransaction transaction, LogicalDatastoreType type) {
  93         InstanceIdentifier<NetworkTopology> path = InstanceIdentifier.create(NetworkTopology.class);
  94         CheckedFuture<Optional<NetworkTopology>, ReadFailedException> topology = transaction.read(type,path);
  95         try {
  96             if (!topology.get().isPresent()) {
  97                 NetworkTopologyBuilder ntb = new NetworkTopologyBuilder();
  98                 transaction.put(type,path,ntb.build());
  99             }
 100         } catch (Exception e) {
 101             LOG.error("Error initializing ovsdb topology {}",e);
 102         }
 103     }
 104 }