Java tutorial
/* * Copyright (c) 2013 Cisco Systems, Inc. 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.protocol.pcep.impl.object; import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeBoolean; import com.google.common.base.Preconditions; import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import org.opendaylight.protocol.pcep.spi.ObjectUtil; import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException; import org.opendaylight.protocol.pcep.spi.XROSubobjectRegistry; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.Xro; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.Xro.Flags; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.XroBuilder; /** * Parser for {@link Xro} */ public final class PCEPExcludeRouteObjectParser extends AbstractXROWithSubobjectsParser { public static final int CLASS = 17; public static final int TYPE = 1; private static final int FLAGS_OFFSET = 3; public PCEPExcludeRouteObjectParser(final XROSubobjectRegistry registry) { super(registry); } @Override public Xro parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException { Preconditions.checkArgument(bytes != null && bytes.isReadable(), "Array of bytes is mandatory. Can't be null or empty."); final XroBuilder builder = new XroBuilder(); builder.setIgnore(header.isIgnore()); builder.setProcessingRule(header.isProcessingRule()); bytes.skipBytes(FLAGS_OFFSET); builder.setFlags(new Flags(bytes.readBoolean())); builder.setSubobject(parseSubobjects(bytes.slice())); return builder.build(); } @Override public void serializeObject(final Object object, final ByteBuf buffer) { Preconditions.checkArgument(object instanceof Xro, "Wrong instance of PCEPObject. Passed %s. Needed XroObject.", object.getClass()); final Xro obj = (Xro) object; final ByteBuf body = Unpooled.buffer(); body.writeZero(FLAGS_OFFSET); writeBoolean(obj.getFlags() != null ? obj.getFlags().isFail() : null, body); serializeSubobject(obj.getSubobject(), body); ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer); } }