openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/action/OF13SetFieldActionSerializer.java

   1 /*\r
   2  * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.\r
   3  *\r
   4  * This program and the accompanying materials are made available under the\r
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html\r
   7  */\r
   8 \r
   9 package org.opendaylight.openflowjava.protocol.impl.serialization.action;\r
  10 \r
  11 import io.netty.buffer.ByteBuf;\r
  12 \r
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.HeaderSerializer;\r
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;\r
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;\r
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;\r
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.keys.MatchEntrySerializerKey;\r
  18 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;\r
  19 import org.opendaylight.openflowjava.protocol.impl.util.ActionConstants;\r
  20 import org.opendaylight.openflowjava.util.ByteBufUtils;\r
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.ExperimenterMatchEntry;\r
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.OxmFieldsAction;\r
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.Action;\r
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ExperimenterClass;\r
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntries;\r
  26 \r
  27 /**\r
  28  * @author michal.polkorab\r
  29  *\r
  30  */\r
  31 public class OF13SetFieldActionSerializer implements OFSerializer<Action>,\r
  32         HeaderSerializer<Action>, SerializerRegistryInjector {\r
  33 \r
  34     private SerializerRegistry registry;\r
  35 \r
  36     @Override\r
  37     public void serialize(Action action, ByteBuf outBuffer) {\r
  38         int startIndex = outBuffer.writerIndex();\r
  39         outBuffer.writeShort(ActionConstants.SET_FIELD_CODE);\r
  40         int lengthIndex = outBuffer.writerIndex();\r
  41         outBuffer.writeShort(EncodeConstants.EMPTY_LENGTH);\r
  42         OxmFieldsAction oxmField = action.getAugmentation(OxmFieldsAction.class);\r
  43         MatchEntries entry = oxmField.getMatchEntries().get(0);\r
  44         MatchEntrySerializerKey<?, ?> key = new MatchEntrySerializerKey<>(\r
  45                 EncodeConstants.OF13_VERSION_ID, entry.getOxmClass(), entry.getOxmMatchField());\r
  46         if (entry.getOxmClass().equals(ExperimenterClass.class)) {\r
  47             key.setExperimenterId(entry.getAugmentation(ExperimenterMatchEntry.class).getExperimenter());\r
  48         } else {\r
  49             key.setExperimenterId(null);\r
  50         }\r
  51         OFSerializer<MatchEntries> serializer = registry.getSerializer(key);\r
  52         serializer.serialize(entry, outBuffer);\r
  53         int paddingRemainder = (outBuffer.writerIndex() - startIndex) % EncodeConstants.PADDING;\r
  54         if (paddingRemainder != 0) {\r
  55             ByteBufUtils.padBuffer(EncodeConstants.PADDING - paddingRemainder, outBuffer);\r
  56         }\r
  57         outBuffer.setShort(lengthIndex, outBuffer.writerIndex() - startIndex);\r
  58     }\r
  59 \r
  60     @Override\r
  61     public void serializeHeader(Action input, ByteBuf outBuffer) {\r
  62         outBuffer.writeShort(ActionConstants.SET_FIELD_CODE);\r
  63         outBuffer.writeShort(ActionConstants.ACTION_IDS_LENGTH);\r
  64     }\r
  65 \r
  66     @Override\r
  67     public void injectSerializerRegistry(SerializerRegistry serializerRegistry) {\r
  68         registry = serializerRegistry;\r
  69     }\r
  70 \r
  71 }\r