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.deserialization.match; import io.netty.buffer.ByteBuf; import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer; import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.MatchField; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OxmClassBase; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.VlanVid; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntry; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.VlanVidCaseBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.vlan.vid._case.VlanVidBuilder; /** * @author michal.polkorab * */ public class OxmVlanVidDeserializer extends AbstractOxmMatchEntryDeserializer implements OFDeserializer<MatchEntry> { @Override public MatchEntry deserialize(ByteBuf input) { MatchEntryBuilder builder = processHeader(getOxmClass(), getOxmField(), input); addVlanVidValue(input, builder); return builder.build(); } private static void addVlanVidValue(ByteBuf input, MatchEntryBuilder builder) { VlanVidCaseBuilder caseBuilder = new VlanVidCaseBuilder(); VlanVidBuilder vlanBuilder = new VlanVidBuilder(); int vidEntryValue = input.readUnsignedShort(); vlanBuilder.setCfiBit((vidEntryValue & (1 << 12)) != 0); // cfi is 13-th bit vlanBuilder.setVlanVid(vidEntryValue & ((1 << 12) - 1)); // value without 13-th bit if (builder.isHasMask()) { vlanBuilder.setMask(OxmDeserializerHelper.convertMask(input, EncodeConstants.SIZE_OF_SHORT_IN_BYTES)); } caseBuilder.setVlanVid(vlanBuilder.build()); builder.setMatchEntryValue(caseBuilder.build()); } @Override protected Class<? extends MatchField> getOxmField() { return VlanVid.class; } @Override protected Class<? extends OxmClassBase> getOxmClass() { return OpenflowBasicClass.class; } }