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.object;
10 import java.util.BitSet;
12 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
13 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
14 import org.opendaylight.protocol.pcep.impl.Util;
15 import org.opendaylight.protocol.pcep.spi.AbstractObjectParser;
16 import org.opendaylight.protocol.pcep.spi.HandlerRegistry;
17 import org.opendaylight.protocol.util.ByteArray;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.pcrep.pcrep.message.replies.result.failure.NoPath;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.pcrep.pcrep.message.replies.result.failure.no.path.Tlvs;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.NoPathObject;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.failure.NoPathBuilder;
27 * Parser for {@link NoPathObject}
29 public class PCEPNoPathObjectParser extends AbstractObjectParser<NoPathBuilder> {
31 public static final int CLASS = 3;
33 public static final int TYPE = 1;
36 * lengths of fields in bytes
38 public static final int NI_F_LENGTH = 1; // multi-field
39 public static final int FLAGS_F_LENGTH = 2;
40 public static final int RESERVED_F_LENGTH = 1;
43 * offsets of field in bytes
46 public static final int NI_F_OFFSET = 0;
47 public static final int FLAGS_F_OFFSET = NI_F_OFFSET + NI_F_LENGTH;
48 public static final int RESERVED_F_OFFSET = FLAGS_F_OFFSET + FLAGS_F_LENGTH;
49 public static final int TLVS_OFFSET = RESERVED_F_OFFSET + RESERVED_F_LENGTH;
55 public static final int C_FLAG_OFFSET = 0;
57 public PCEPNoPathObjectParser(final HandlerRegistry registry) {
62 public NoPathObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException,
63 PCEPDocumentedException {
64 if (bytes == null || bytes.length == 0)
65 throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
67 final BitSet flags = ByteArray.bytesToBitSet(ByteArray.subByte(bytes, FLAGS_F_OFFSET, FLAGS_F_LENGTH));
69 final NoPathBuilder builder = new NoPathBuilder();
71 parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
73 builder.setIgnore(header.isIgnore());
74 builder.setProcessingRule(header.isProcessingRule());
76 builder.setNatureOfIssue((short) (bytes[NI_F_OFFSET] & 0xFF));
77 builder.setUnsatisfiedConstraints(flags.get(C_FLAG_OFFSET));
79 return builder.build();
83 public void addTlv(final NoPathBuilder builder, final Tlv tlv) {
84 // FIXME : add no-path-vector-tlv
88 public byte[] serializeObject(final Object object) {
89 if (!(object instanceof NoPathObject))
90 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed NoPathObject.");
92 final NoPathObject nPObj = (NoPathObject) object;
94 final byte[] tlvs = serializeTlvs(((NoPath) nPObj).getTlvs());
97 tlvsLength = tlvs.length;
98 final byte[] retBytes = new byte[TLVS_OFFSET + tlvsLength + Util.getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
101 ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
102 final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
103 flags.set(C_FLAG_OFFSET, nPObj.isUnsatisfiedConstraints());
104 retBytes[NI_F_OFFSET] = ByteArray.shortToBytes(nPObj.getNatureOfIssue())[1];
105 ByteArray.copyWhole(ByteArray.bitSetToBytes(flags, FLAGS_F_LENGTH), retBytes, FLAGS_F_OFFSET);
106 ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
111 public byte[] serializeTlvs(final Tlvs tlvs) {
112 if (tlvs.getNoPathVector() != null) {
113 // FIXME : add NoPath
114 // return serializeTlv(new NoPathVectorBuilder().setFlags(tlvs.getNoPathVector()).build());
120 public int getObjectType() {
125 public int getObjectClass() {