Java tutorial
/* * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html */ package org.opendaylight.openflowjava.protocol.impl.util; import io.netty.buffer.ByteBuf; import java.util.ArrayList; import java.util.List; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ArpOp; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ArpSha; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ArpSpa; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ArpTha; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ArpTpa; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.EthDst; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.EthSrc; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.EthType; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.ExperimenterClass; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Icmpv4Code; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Icmpv4Type; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Icmpv6Code; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Icmpv6Type; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.InPhyPort; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.InPort; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.IpDscp; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.IpEcn; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.IpProto; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv4Dst; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv4Src; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6Dst; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6Exthdr; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6Flabel; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6NdSll; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6NdTarget; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6NdTll; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv6Src; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Metadata; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.MplsBos; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.MplsLabel; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.MplsTc; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Nxm0Class; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Nxm1Class; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OpenflowBasicClass; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.PbbIsid; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.SctpDst; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.SctpSrc; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.TcpDst; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.TcpSrc; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.TunnelId; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.UdpDst; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.UdpSrc; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.VlanPcp; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.VlanVid; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntries; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntriesBuilder; /** * Encodes match ids (oxm_ids) needed in Multipart-TableFeatures messages * @author michal.polkorab */ public abstract class MatchIdsDeserializer { /** Decodes oxm ids * @param in input ByteBuf * @param matchLength match entries length * @return list of match ids */ public static List<MatchEntries> createOxmIds(ByteBuf in, int matchLength) { List<MatchEntries> matchEntriesList = new ArrayList<>(); int currLength = 0; while (currLength < matchLength) { MatchEntriesBuilder matchEntriesBuilder = new MatchEntriesBuilder(); switch (in.readUnsignedShort()) { case 0x0000: matchEntriesBuilder.setOxmClass(Nxm0Class.class); break; case 0x0001: matchEntriesBuilder.setOxmClass(Nxm1Class.class); break; case 0x8000: matchEntriesBuilder.setOxmClass(OpenflowBasicClass.class); break; case 0xFFFF: matchEntriesBuilder.setOxmClass(ExperimenterClass.class); break; default: break; } int fieldAndMask = in.readUnsignedByte(); boolean hasMask = (fieldAndMask & 1) != 0; matchEntriesBuilder.setHasMask(hasMask); int matchField = fieldAndMask >> 1; in.skipBytes(EncodeConstants.SIZE_OF_BYTE_IN_BYTES); currLength += EncodeConstants.SIZE_OF_SHORT_IN_BYTES + (2 * EncodeConstants.SIZE_OF_BYTE_IN_BYTES); switch (matchField) { case 0: matchEntriesBuilder.setOxmMatchField(InPort.class); break; case 1: matchEntriesBuilder.setOxmMatchField(InPhyPort.class); break; case 2: matchEntriesBuilder.setOxmMatchField(Metadata.class); break; case 3: matchEntriesBuilder.setOxmMatchField(EthDst.class); break; case 4: matchEntriesBuilder.setOxmMatchField(EthSrc.class); break; case 5: matchEntriesBuilder.setOxmMatchField(EthType.class); break; case 6: matchEntriesBuilder.setOxmMatchField(VlanVid.class); break; case 7: matchEntriesBuilder.setOxmMatchField(VlanPcp.class); break; case 8: matchEntriesBuilder.setOxmMatchField(IpDscp.class); break; case 9: matchEntriesBuilder.setOxmMatchField(IpEcn.class); break; case 10: matchEntriesBuilder.setOxmMatchField(IpProto.class); break; case 11: matchEntriesBuilder.setOxmMatchField(Ipv4Src.class); break; case 12: matchEntriesBuilder.setOxmMatchField(Ipv4Dst.class); break; case 13: matchEntriesBuilder.setOxmMatchField(TcpSrc.class); break; case 14: matchEntriesBuilder.setOxmMatchField(TcpDst.class); break; case 15: matchEntriesBuilder.setOxmMatchField(UdpSrc.class); break; case 16: matchEntriesBuilder.setOxmMatchField(UdpDst.class); break; case 17: matchEntriesBuilder.setOxmMatchField(SctpSrc.class); break; case 18: matchEntriesBuilder.setOxmMatchField(SctpDst.class); break; case 19: matchEntriesBuilder.setOxmMatchField(Icmpv4Type.class); break; case 20: matchEntriesBuilder.setOxmMatchField(Icmpv4Code.class); break; case 21: matchEntriesBuilder.setOxmMatchField(ArpOp.class); break; case 22: matchEntriesBuilder.setOxmMatchField(ArpSpa.class); break; case 23: matchEntriesBuilder.setOxmMatchField(ArpTpa.class); break; case 24: matchEntriesBuilder.setOxmMatchField(ArpSha.class); break; case 25: matchEntriesBuilder.setOxmMatchField(ArpTha.class); break; case 26: matchEntriesBuilder.setOxmMatchField(Ipv6Src.class); break; case 27: matchEntriesBuilder.setOxmMatchField(Ipv6Dst.class); break; case 28: matchEntriesBuilder.setOxmMatchField(Ipv6Flabel.class); break; case 29: matchEntriesBuilder.setOxmMatchField(Icmpv6Type.class); break; case 30: matchEntriesBuilder.setOxmMatchField(Icmpv6Code.class); break; case 31: matchEntriesBuilder.setOxmMatchField(Ipv6NdTarget.class); break; case 32: matchEntriesBuilder.setOxmMatchField(Ipv6NdSll.class); break; case 33: matchEntriesBuilder.setOxmMatchField(Ipv6NdTll.class); break; case 34: matchEntriesBuilder.setOxmMatchField(MplsLabel.class); break; case 35: matchEntriesBuilder.setOxmMatchField(MplsTc.class); break; case 36: matchEntriesBuilder.setOxmMatchField(MplsBos.class); break; case 37: matchEntriesBuilder.setOxmMatchField(PbbIsid.class); break; case 38: matchEntriesBuilder.setOxmMatchField(TunnelId.class); break; case 39: matchEntriesBuilder.setOxmMatchField(Ipv6Exthdr.class); break; default: break; } matchEntriesList.add(matchEntriesBuilder.build()); } return matchEntriesList; } }