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.Arrays;
12 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
13 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
14 import org.opendaylight.protocol.pcep.PCEPErrors;
15 import org.opendaylight.protocol.pcep.spi.TlvHandlerRegistry;
16 import org.opendaylight.protocol.util.ByteArray;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.SrpIdNumber;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.srp.object.Srp;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.srp.object.SrpBuilder;
25 * Parser for {@link Srp}
27 public final class PCEPSrpObjectParser extends AbstractObjectWithTlvsParser<SrpBuilder> {
29 public static final int CLASS = 33;
31 public static final int TYPE = 1;
33 private static final int FLAGS_SIZE = 4;
35 private static final int SRP_ID_SIZE = 4;
37 private static final int MIN_SIZE = FLAGS_SIZE + SRP_ID_SIZE;
39 public PCEPSrpObjectParser(final TlvHandlerRegistry tlvReg) {
44 public Srp parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
45 if (bytes == null || bytes.length == 0) {
46 throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
48 if (bytes.length < MIN_SIZE) {
49 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.length + "; Expected: >=" + MIN_SIZE
52 if (header.isProcessingRule()) {
53 throw new PCEPDeserializerException("Processed flag is set");
55 final SrpBuilder builder = new SrpBuilder();
56 builder.setIgnore(header.isIgnore());
57 builder.setProcessingRule(header.isProcessingRule());
58 final byte[] srpId = ByteArray.subByte(bytes, FLAGS_SIZE, SRP_ID_SIZE);
59 if (Arrays.equals(srpId, new byte[] { 0, 0, 0, 0 })) {
60 // The absence of the SRP object is equivalent to an SRP object with the reserved value of 0x00000000.
61 throw new PCEPDocumentedException("Srp object has 0 value.", PCEPErrors.SRP_MISSING);
63 if (Arrays.equals(srpId, new byte[] { 0xFFFFFFFF })) {
64 throw new PCEPDeserializerException("Max values for SRP ID are reserved.");
66 builder.setOperationId(new SrpIdNumber(ByteArray.bytesToLong(srpId)));
67 return builder.build();
71 public void addTlv(final SrpBuilder builder, final Tlv tlv) {
76 public byte[] serializeObject(final Object object) {
77 if (!(object instanceof Srp)) {
78 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed SrpObject.");
80 final Srp srp = (Srp) object;
81 final Long id = srp.getOperationId().getValue();
82 if (id == 0 || id == 0xFFFFFFFFL) {
83 throw new IllegalArgumentException("Min/Max values for SRP ID are reserved.");
85 final byte[] retBytes = new byte[MIN_SIZE];
86 System.arraycopy(ByteArray.intToBytes(id.intValue()), 0, retBytes, FLAGS_SIZE, SRP_ID_SIZE);
91 public int getObjectType() {
96 public int getObjectClass() {