openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/sal/convertor/flow/FlowFlagsInjector.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.openflow.md.core.sal.convertor.flow;
   9
  10 import java.util.HashMap;
  11 import java.util.Map;
  12 import java.util.Optional;
  13 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  14 import org.opendaylight.openflowplugin.api.OFConstants;
  15 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.ConvertorKey;
  16 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.ResultInjector;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModFlags;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModFlagsV10;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInputBuilder;
  20 import org.opendaylight.yangtools.yang.common.Uint8;
  21
  22 public final class FlowFlagsInjector {
  23     private FlowFlagsInjector() {
  24     }
  25
  26     @SuppressWarnings("unchecked")
  27     public static <F, T> void inject(final Optional<F> source, final T target, final Uint8 version) {
  28         F sourceResult;
  29         if (source.isPresent()) {
  30             sourceResult = source.orElseThrow();
  31         } else if (version.equals(EncodeConstants.OF_VERSION_1_0)) {
  32             sourceResult = (F) FlowFlagsV10Convertor.defaultResult();
  33         } else {
  34             sourceResult = (F) FlowFlagsConvertor.defaultResult();
  35         }
  36
  37         final Map<ConvertorKey, ResultInjector<?, ?>> injectorMap = new HashMap<>();
  38         addInjectors(injectorMap);
  39
  40         final ResultInjector<F, T> injection = (ResultInjector<F, T>) injectorMap
  41                 .get(new ConvertorKey(version, target.getClass()));
  42
  43         injection.inject(sourceResult, target);
  44     }
  45
  46     private static void addInjectors(final Map<ConvertorKey, ResultInjector<?, ?>> injectionMapping) {
  47         // OF-1.3|FlowModFlags --> FlowModInputBuilder
  48         injectionMapping.put(new ConvertorKey(OFConstants.OFP_VERSION_1_3, FlowModInputBuilder.class),
  49             (ResultInjector<FlowModFlags, FlowModInputBuilder>)(value, target) -> target.setFlags(value));
  50
  51         // OF-1.3|FlowModFlagsV10 --> FlowModInputBuilder
  52         injectionMapping.put(new ConvertorKey(OFConstants.OFP_VERSION_1_0, FlowModInputBuilder.class),
  53             (ResultInjector<FlowModFlagsV10, FlowModInputBuilder>)(value, target) -> target.setFlagsV10(value));
  54     }
  55 }