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.parser.object;
10 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedByte;
12 import com.google.common.base.Preconditions;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import java.util.List;
16 import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
17 import org.opendaylight.protocol.pcep.spi.ObjectUtil;
18 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
19 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
20 import org.opendaylight.protocol.pcep.spi.TlvRegistry;
21 import org.opendaylight.protocol.pcep.spi.VendorInformationTlvRegistry;
22 import org.opendaylight.protocol.util.ByteBufUtils;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.ObjectHeader;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Tlv;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcep.error.object.ErrorObject;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcep.error.object.ErrorObjectBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcep.error.object.error.object.Tlvs;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcep.error.object.error.object.TlvsBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.req.missing.tlv.ReqMissing;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.vendor.information.tlvs.VendorInformationTlv;
34 * Parser for {@link ErrorObject}.
36 public final class PCEPErrorObjectParser extends AbstractObjectWithTlvsParser<ErrorObjectBuilder> {
38 private static final int CLASS = 13;
39 private static final int TYPE = 1;
40 private static final int FLAGS_F_LENGTH = 1;
41 private static final int RESERVED = 1;
43 public PCEPErrorObjectParser(final TlvRegistry tlvReg, final VendorInformationTlvRegistry viTlvReg) {
44 super(tlvReg, viTlvReg, CLASS, TYPE);
48 public ErrorObject parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
49 Preconditions.checkArgument(bytes != null && bytes.isReadable(),
50 "Array of bytes is mandatory. Can't be null or empty.");
51 bytes.skipBytes(FLAGS_F_LENGTH + RESERVED);
52 final ErrorObjectBuilder builder = new ErrorObjectBuilder()
53 .setIgnore(header.isIgnore())
54 .setProcessingRule(header.isProcessingRule())
55 .setType(ByteBufUtils.readUint8(bytes))
56 .setValue(ByteBufUtils.readUint8(bytes));
57 parseTlvs(builder, bytes.slice());
58 return builder.build();
62 public void addTlv(final ErrorObjectBuilder builder, final Tlv tlv) {
63 if (tlv instanceof ReqMissing
64 && PCEPErrors.SYNC_PATH_COMP_REQ_MISSING.getErrorType().equals(builder.getType())) {
65 builder.setTlvs(new TlvsBuilder().setReqMissing((ReqMissing) tlv).build());
70 public void serializeObject(final Object object, final ByteBuf buffer) {
71 Preconditions.checkArgument(object instanceof ErrorObject,
72 "Wrong instance of PCEPObject. Passed %s. Needed ErrorObject.", object.getClass());
73 final ErrorObject errObj = (ErrorObject) object;
74 final ByteBuf body = Unpooled.buffer();
75 body.writeZero(FLAGS_F_LENGTH + RESERVED);
76 Preconditions.checkArgument(errObj.getType() != null, "Type is mandatory.");
77 writeUnsignedByte(errObj.getType(), body);
78 Preconditions.checkArgument(errObj.getValue() != null, "Value is mandatory.");
79 writeUnsignedByte(errObj.getValue(), body);
80 serializeTlvs(errObj.getTlvs(), body);
81 ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
84 public void serializeTlvs(final Tlvs tlvs, final ByteBuf body) {
88 if (tlvs.getReqMissing() != null) {
89 serializeTlv(tlvs.getReqMissing(), body);
91 serializeVendorInformationTlvs(tlvs.getVendorInformationTlv(), body);
95 protected void addVendorInformationTlvs(
96 final ErrorObjectBuilder builder,
97 final List<VendorInformationTlv> tlvs) {
98 if (!tlvs.isEmpty()) {
99 builder.setTlvs(new TlvsBuilder(builder.getTlvs()).setVendorInformationTlv(tlvs).build());