2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.protocol.pcep.parser.object;
10 import static org.opendaylight.protocol.util.ByteBufWriteUtil.INT_BYTES_LENGTH;
12 import com.google.common.base.Preconditions;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import org.opendaylight.protocol.pcep.spi.CommonObjectParser;
16 import org.opendaylight.protocol.pcep.spi.ObjectSerializer;
17 import org.opendaylight.protocol.pcep.spi.ObjectUtil;
18 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
19 import org.opendaylight.protocol.util.BitArray;
20 import org.opendaylight.protocol.util.ByteBufWriteUtil;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.ObjectHeader;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.proc.time.object.ProcTime;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.proc.time.object.ProcTimeBuilder;
27 * Parser for {@link ProcTime}
28 * @see <a href="https://tools.ietf.org/html/rfc5886#section-4.4">PROC-TIME Object</a>
30 public class PCEPProcTimeObjectParser extends CommonObjectParser implements ObjectSerializer {
32 private static final int CLASS = 26;
33 private static final int TYPE = 1;
34 private static final int RESERVED = 2;
35 private static final int FLAGS = 16;
36 private static final int COUNT_FIELDS = 5;
37 private static final int BODY_SIZE = RESERVED + FLAGS + COUNT_FIELDS * INT_BYTES_LENGTH;
38 private static final int E_FLAG_POSITION = 15;
40 public PCEPProcTimeObjectParser() {
45 public void serializeObject(final Object object, final ByteBuf buffer) {
46 Preconditions.checkArgument(object instanceof ProcTime,
47 "Wrong instance of PCEPObject. Passed %s. Needed ProcTimeObject.", object.getClass());
48 final ProcTime procTime = (ProcTime) object;
49 final ByteBuf body = Unpooled.buffer(BODY_SIZE);
50 body.writeZero(RESERVED);
51 final BitArray flagBits = new BitArray(FLAGS);
52 flagBits.set(E_FLAG_POSITION, procTime.isEstimated());
53 flagBits.toByteBuf(body);
54 ByteBufWriteUtil.writeUnsignedInt(procTime.getCurrentProcTime(), body);
55 ByteBufWriteUtil.writeUnsignedInt(procTime.getMinProcTime(), body);
56 ByteBufWriteUtil.writeUnsignedInt(procTime.getMaxProcTime(), body);
57 ByteBufWriteUtil.writeUnsignedInt(procTime.getAverageProcTime(), body);
58 ByteBufWriteUtil.writeUnsignedInt(procTime.getVarianceProcTime(), body);
59 ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
63 public Object parseObject(final ObjectHeader header, final ByteBuf buffer) throws PCEPDeserializerException {
64 Preconditions.checkArgument(buffer != null && buffer.isReadable(),
65 "Array of bytes is mandatory. Can't be null or empty.");
66 final ProcTimeBuilder builder = new ProcTimeBuilder();
67 buffer.skipBytes(RESERVED);
68 final BitArray flagBits = BitArray.valueOf(buffer, FLAGS);
69 builder.setEstimated(flagBits.get(E_FLAG_POSITION));
70 builder.setCurrentProcTime(buffer.readUnsignedInt());
71 builder.setMinProcTime(buffer.readUnsignedInt());
72 builder.setMaxProcTime(buffer.readUnsignedInt());
73 builder.setAverageProcTime(buffer.readUnsignedInt());
74 builder.setVarianceProcTime(buffer.readUnsignedInt());
75 return builder.build();