openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/util/DeviceInitializationUtil.java

   1 /*
   2  * Copyright (c) 2016 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.impl.util;
  10
  11 import java.net.InetSocketAddress;
  12 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  13 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
  14 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
  15 import org.opendaylight.openflowplugin.api.openflow.device.TxFacade;
  16 import org.opendaylight.openflowplugin.openflow.md.core.sal.SwitchFeaturesUtil;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.flow.node.SwitchFeatures;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableKey;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsData;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsDataBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutputBuilder;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class DeviceInitializationUtil {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(DeviceInitializationUtil.class);
  35
  36     private DeviceInitializationUtil() {
  37         // Hiding implicit constructor
  38     }
  39
  40     /**
  41      * Create specified number of empty tables on device
  42      * FIXME: remove after ovs table features fix
  43      * @param txFacade transaction facade
  44      * @param deviceInfo device info
  45      * @param nrOfTables number of tables
  46      */
  47     public static void makeEmptyTables(final TxFacade txFacade, final DeviceInfo deviceInfo, final Short nrOfTables) {
  48         if (LOG.isDebugEnabled()) {
  49             LOG.debug("About to create {} empty tables for node {}.", nrOfTables, deviceInfo.getLOGValue());
  50         }
  51
  52         for (int i = 0; i < nrOfTables; i++) {
  53             try {
  54                 txFacade.writeToTransaction(LogicalDatastoreType.OPERATIONAL,
  55                     deviceInfo
  56                         .getNodeInstanceIdentifier()
  57                         .augmentation(FlowCapableNode.class)
  58                         .child(Table.class, new TableKey((short) i)),
  59                     new TableBuilder()
  60                         .setId((short) i)
  61                         .addAugmentation(
  62                             FlowTableStatisticsData.class,
  63                             new FlowTableStatisticsDataBuilder().build())
  64                         .build());
  65             } catch (final Exception e) {
  66                 LOG.debug("makeEmptyTables: Failed to write node {} to DS ", deviceInfo.getLOGValue(), e);
  67             }
  68         }
  69     }
  70
  71     /**
  72      * Retrieve ip address from connection
  73      * @param connectionContext connection context
  74      * @param instanceIdentifier instance identifier
  75      * @return ip adress
  76      */
  77     public static IpAddress getIpAddress(final ConnectionContext connectionContext,
  78                                          final InstanceIdentifier<Node> instanceIdentifier) {
  79         final InetSocketAddress remoteAddress = connectionContext
  80             .getConnectionAdapter()
  81             .getRemoteAddress();
  82
  83         if (remoteAddress == null) {
  84             LOG.warn("IP address of the node {} cannot be obtained. No connection with switch.", instanceIdentifier);
  85             return null;
  86         }
  87
  88         LOG.info("IP address of the node {} is: {}", instanceIdentifier, remoteAddress);
  89         return IetfInetUtil.INSTANCE.ipAddressFor(remoteAddress.getAddress());
  90     }
  91
  92     /**
  93      * Retrieve switch features from connection
  94      * @param connectionContext connection context
  95      * @return switch features
  96      */
  97     public static SwitchFeatures getSwitchFeatures(final ConnectionContext connectionContext) {
  98         return SwitchFeaturesUtil
  99             .getInstance()
 100             .buildSwitchFeatures(new GetFeaturesOutputBuilder(connectionContext
 101                 .getFeatures())
 102                 .build());
 103     }
 104
 105 }