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.spi.TlvHandlerRegistry;
15 import org.opendaylight.protocol.util.ByteArray;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.LspaObject;
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.Tlv;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.LspaBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.AttributeFilter;
23 import com.google.common.primitives.UnsignedBytes;
26 * Parser for {@link LspaObject}
28 public class PCEPLspaObjectParser extends AbstractObjectWithTlvsParser<LspaBuilder> {
30 public static final int CLASS = 9;
32 public static final int TYPE = 1;
35 * lengths of fields in bytes
37 private static final int EXC_ANY_F_LENGTH = 4;
38 private static final int INC_ANY_F_LENGTH = 4;
39 private static final int INC_ALL_F_LENGTH = 4;
40 private static final int SET_PRIO_F_LENGTH = 1;
41 private static final int HOLD_PRIO_F_LENGTH = 1;
42 private static final int FLAGS_F_LENGTH = 1;
45 * offsets of flags inside flags field in bits
47 private static final int L_FLAG_OFFSET = 7;
50 * offsets of fields in bytes
52 private static final int EXC_ANY_F_OFFSET = 0;
53 private static final int INC_ANY_F_OFFSET = EXC_ANY_F_OFFSET + EXC_ANY_F_LENGTH;
54 private static final int INC_ALL_F_OFFSET = INC_ANY_F_OFFSET + INC_ANY_F_LENGTH;
55 private static final int SET_PRIO_F_OFFSET = INC_ALL_F_OFFSET + INC_ALL_F_LENGTH;
56 private static final int HOLD_PRIO_F_OFFSET = SET_PRIO_F_OFFSET + SET_PRIO_F_LENGTH;
57 private static final int FLAGS_F_OFFSET = HOLD_PRIO_F_OFFSET + HOLD_PRIO_F_LENGTH;
58 private static final int TLVS_F_OFFSET = FLAGS_F_OFFSET + FLAGS_F_LENGTH + 1; // added reserved field of length 1B
60 public PCEPLspaObjectParser(final TlvHandlerRegistry tlvReg) {
65 public LspaObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
67 throw new IllegalArgumentException("Bytes array is mandatory.");
69 final BitSet flags = ByteArray.bytesToBitSet(ByteArray.subByte(bytes, FLAGS_F_OFFSET, FLAGS_F_LENGTH));
71 final LspaBuilder builder = new LspaBuilder();
72 parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_F_OFFSET));
74 builder.setIgnore(header.isIgnore());
75 builder.setProcessingRule(header.isProcessingRule());
77 builder.setHoldPriority((short) UnsignedBytes.toInt(bytes[HOLD_PRIO_F_OFFSET]));
78 builder.setSetupPriority((short) UnsignedBytes.toInt(bytes[SET_PRIO_F_OFFSET]));
79 builder.setLocalProtectionDesired(flags.get(L_FLAG_OFFSET));
80 builder.setExcludeAny(new AttributeFilter(ByteArray.bytesToLong(ByteArray.subByte(bytes, EXC_ANY_F_OFFSET, EXC_ANY_F_LENGTH))));
81 builder.setIncludeAll(new AttributeFilter(ByteArray.bytesToLong(ByteArray.subByte(bytes, INC_ALL_F_OFFSET, INC_ALL_F_LENGTH))));
82 builder.setIncludeAny(new AttributeFilter(ByteArray.bytesToLong(ByteArray.subByte(bytes, INC_ANY_F_OFFSET, INC_ANY_F_LENGTH))));
83 return builder.build();
87 public void addTlv(final LspaBuilder builder, final Tlv tlv) {
92 public byte[] serializeObject(final Object object) {
93 if (!(object instanceof LspaObject)) {
94 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed LspaObject.");
96 final LspaObject lspaObj = (LspaObject) object;
98 final byte[] retBytes = new byte[TLVS_F_OFFSET];
100 System.arraycopy(ByteArray.longToBytes(lspaObj.getExcludeAny().getValue()), 4, retBytes, EXC_ANY_F_OFFSET, EXC_ANY_F_LENGTH);
101 System.arraycopy(ByteArray.longToBytes(lspaObj.getIncludeAny().getValue()), 4, retBytes, INC_ANY_F_OFFSET, INC_ANY_F_LENGTH);
102 System.arraycopy(ByteArray.longToBytes(lspaObj.getIncludeAll().getValue()), 4, retBytes, INC_ALL_F_OFFSET, INC_ALL_F_LENGTH);
103 retBytes[SET_PRIO_F_OFFSET] = UnsignedBytes.checkedCast(lspaObj.getSetupPriority());
104 retBytes[HOLD_PRIO_F_OFFSET] = UnsignedBytes.checkedCast(lspaObj.getHoldPriority());
106 final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
107 flags.set(L_FLAG_OFFSET, lspaObj.isLocalProtectionDesired());
108 ByteArray.copyWhole(ByteArray.bitSetToBytes(flags, FLAGS_F_LENGTH), retBytes, FLAGS_F_OFFSET);
113 public int getObjectType() {
118 public int getObjectClass() {