openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/device/SwitchFeaturesUtil.java

   1 /*
   2  * Copyright (c) 2013 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.openflowplugin.impl.device;
   9
  10 import static org.opendaylight.openflowplugin.api.OFConstants.OFP_VERSION_1_0;
  11 import static org.opendaylight.openflowplugin.api.OFConstants.OFP_VERSION_1_3;
  12
  13 import java.util.Map;
  14 import org.opendaylight.openflowplugin.api.openflow.md.core.sal.BuildSwitchFeatures;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.flow.node.SwitchFeatures;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;
  17 import org.opendaylight.yangtools.yang.common.Uint8;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public final class SwitchFeaturesUtil {
  22     private static final Logger LOG = LoggerFactory.getLogger(SwitchFeaturesUtil.class);
  23
  24     private static final Map<Uint8, BuildSwitchFeatures> SWITCH_FEATURES_BUILDERS = Map.of(
  25         OFP_VERSION_1_0, BuildSwitchCapabilitiesOF10.getInstance(),
  26         OFP_VERSION_1_3, BuildSwitchCapabilitiesOF13.getInstance());
  27
  28     private SwitchFeaturesUtil() {
  29         // Hidden on purpose
  30     }
  31
  32     /**
  33      * Returns the features of the switch.
  34      *
  35      * @param features
  36      *        {@link org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput}
  37      * @return switch features
  38      */
  39     public static SwitchFeatures buildSwitchFeatures(final GetFeaturesOutput features) {
  40         final var version = features.getVersion();
  41         final var builder = SWITCH_FEATURES_BUILDERS.get(version);
  42         if (builder != null) {
  43             LOG.debug("map contains version {}", version);
  44             return builder.build(features);
  45         }
  46         LOG.warn("unknown version: {}", version);
  47         return null;
  48     }
  49 }