2 * Copyright (c) 2013 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.impl.subobject;
10 import io.netty.buffer.ByteBuf;
12 import org.opendaylight.protocol.pcep.impl.object.XROSubobjectUtil;
13 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
14 import org.opendaylight.protocol.pcep.spi.XROSubobjectParser;
15 import org.opendaylight.protocol.pcep.spi.XROSubobjectSerializer;
16 import org.opendaylight.protocol.util.ByteArray;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.SubobjectBuilder;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.ExcludeRouteSubobjects.Attribute;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.SrlgId;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.SrlgSubobject;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.basic.explicit.route.subobjects.subobject.type.SrlgCase;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.basic.explicit.route.subobjects.subobject.type.SrlgCaseBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.basic.explicit.route.subobjects.subobject.type.srlg._case.SrlgBuilder;
26 import com.google.common.base.Preconditions;
27 import com.google.common.primitives.UnsignedBytes;
30 * Parser for {@link SrlgCase}
32 public class XROSRLGSubobjectParser implements XROSubobjectParser, XROSubobjectSerializer {
34 public static final int TYPE = 34;
36 private static final int SRLG_ID_NUMBER_LENGTH = 4;
37 private static final int ATTRIBUTE_LENGTH = 1;
39 private static final int SRLG_ID_NUMBER_OFFSET = 0;
40 private static final int ATTRIBUTE_OFFSET = SRLG_ID_NUMBER_OFFSET + SRLG_ID_NUMBER_LENGTH;
42 private static final int CONTENT_LENGTH = SRLG_ID_NUMBER_LENGTH + ATTRIBUTE_LENGTH;
45 public Subobject parseSubobject(final ByteBuf buffer, final boolean mandatory) throws PCEPDeserializerException {
46 Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
47 if (buffer.readableBytes() != CONTENT_LENGTH) {
48 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + "; Expected: "
49 + CONTENT_LENGTH + ".");
52 final SubobjectBuilder builder = new SubobjectBuilder();
53 builder.setMandatory(mandatory);
54 builder.setAttribute(Attribute.Srlg);
55 builder.setSubobjectType(new SrlgCaseBuilder().setSrlg(
56 new SrlgBuilder().setSrlgId(
57 new SrlgId(buffer.readUnsignedInt())).build()).build());
58 return builder.build();
62 public byte[] serializeSubobject(final Subobject subobject) {
63 if (!(subobject.getSubobjectType() instanceof SrlgCase)) {
64 throw new IllegalArgumentException("Unknown PCEPXROSubobject instance. Passed " + subobject.getSubobjectType().getClass()
65 + ". Needed SrlgCase.");
69 retBytes = new byte[CONTENT_LENGTH];
70 final SrlgSubobject specObj = ((SrlgCase) subobject.getSubobjectType()).getSrlg();
72 ByteArray.copyWhole(ByteArray.longToBytes(specObj.getSrlgId().getValue(), SRLG_ID_NUMBER_LENGTH), retBytes, SRLG_ID_NUMBER_OFFSET);
73 retBytes[ATTRIBUTE_OFFSET] = UnsignedBytes.checkedCast(subobject.getAttribute().getIntValue());
75 return XROSubobjectUtil.formatSubobject(TYPE, subobject.isMandatory(), retBytes);