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.AbstractObjectParser;
15 import org.opendaylight.protocol.pcep.spi.SubobjectHandlerRegistry;
16 import org.opendaylight.protocol.pcep.spi.TlvHandlerRegistry;
17 import org.opendaylight.protocol.util.ByteArray;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.LspaObject;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.LspaBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.AttributeFilter;
26 * Parser for {@link LspaObject}
28 public class PCEPLspaObjectParser extends AbstractObjectParser<LspaBuilder> {
30 public static final int CLASS = 9;
32 public static final int TYPE = 1;
35 * lengths of fields in bytes
37 public static final int EXC_ANY_F_LENGTH = 4;
38 public static final int INC_ANY_F_LENGTH = 4;
39 public static final int INC_ALL_F_LENGTH = 4;
40 public static final int SET_PRIO_F_LENGTH = 1;
41 public static final int HOLD_PRIO_F_LENGTH = 1;
42 public static final int FLAGS_F_LENGTH = 1;
45 * offsets of flags inside flags field in bits
47 public static final int S_FLAG_OFFSET = 6;
48 public static final int L_FLAG_OFFSET = 7;
51 * offsets of fields in bytes
53 public static final int EXC_ANY_F_OFFSET = 0;
54 public static final int INC_ANY_F_OFFSET = EXC_ANY_F_OFFSET + EXC_ANY_F_LENGTH;
55 public static final int INC_ALL_F_OFFSET = INC_ANY_F_OFFSET + INC_ANY_F_LENGTH;
56 public static final int SET_PRIO_F_OFFSET = INC_ALL_F_OFFSET + INC_ALL_F_LENGTH;
57 public static final int HOLD_PRIO_F_OFFSET = SET_PRIO_F_OFFSET + SET_PRIO_F_LENGTH;
58 public static final int FLAGS_F_OFFSET = HOLD_PRIO_F_OFFSET + HOLD_PRIO_F_LENGTH;
59 public static final int TLVS_F_OFFSET = FLAGS_F_OFFSET + FLAGS_F_LENGTH + 1; // added reserved field of length 1B
61 public PCEPLspaObjectParser(final SubobjectHandlerRegistry subobjReg, final TlvHandlerRegistry tlvReg) {
62 super(subobjReg, tlvReg);
66 public LspaObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
68 throw new IllegalArgumentException("Bytes array is mandatory.");
71 final BitSet flags = ByteArray.bytesToBitSet(ByteArray.subByte(bytes, FLAGS_F_OFFSET, FLAGS_F_LENGTH));
73 final LspaBuilder builder = new LspaBuilder();
75 parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_F_OFFSET));
77 builder.setIgnore(header.isIgnore());
78 builder.setProcessingRule(header.isProcessingRule());
80 builder.setHoldPriority((short) (bytes[HOLD_PRIO_F_OFFSET] & 0xFF));
81 builder.setSetupPriority((short) (bytes[SET_PRIO_F_OFFSET] & 0xFF));
82 builder.setLocalProtectionDesired(flags.get(L_FLAG_OFFSET));
83 builder.setExcludeAny(new AttributeFilter(ByteArray.bytesToLong(ByteArray.subByte(bytes, EXC_ANY_F_OFFSET, EXC_ANY_F_LENGTH))));
84 builder.setIncludeAll(new AttributeFilter(ByteArray.bytesToLong(ByteArray.subByte(bytes, INC_ALL_F_OFFSET, INC_ALL_F_LENGTH))));
85 builder.setIncludeAny(new AttributeFilter(ByteArray.bytesToLong(ByteArray.subByte(bytes, INC_ANY_F_OFFSET, INC_ANY_F_LENGTH))));
87 return builder.build();
91 public void addTlv(final LspaBuilder builder, final Tlv tlv) {
96 public byte[] serializeObject(final Object object) {
97 if (!(object instanceof LspaObject)) {
98 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed LspaObject.");
101 final LspaObject lspaObj = (LspaObject) object;
103 // FIXME, but no Tlvs defined
104 // final byte[] tlvs = PCEPTlvParser.put(lspaObj.getTlvs());
105 // final byte[] retBytes = new byte[TLVS_F_OFFSET + tlvs.length];
106 // ByteArray.copyWhole(tlvs, retBytes, TLVS_F_OFFSET);
108 final byte[] retBytes = new byte[TLVS_F_OFFSET];
110 System.arraycopy(ByteArray.longToBytes(lspaObj.getExcludeAny().getValue()), 4, retBytes, EXC_ANY_F_OFFSET, EXC_ANY_F_LENGTH);
111 System.arraycopy(ByteArray.longToBytes(lspaObj.getIncludeAny().getValue()), 4, retBytes, INC_ANY_F_OFFSET, INC_ANY_F_LENGTH);
112 System.arraycopy(ByteArray.longToBytes(lspaObj.getIncludeAll().getValue()), 4, retBytes, INC_ALL_F_OFFSET, INC_ALL_F_LENGTH);
113 retBytes[SET_PRIO_F_OFFSET] = ByteArray.shortToBytes(lspaObj.getSetupPriority())[Short.SIZE / Byte.SIZE - 1];
114 retBytes[HOLD_PRIO_F_OFFSET] = ByteArray.shortToBytes(lspaObj.getHoldPriority())[Short.SIZE / Byte.SIZE - 1];
116 final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
117 flags.set(L_FLAG_OFFSET, lspaObj.isLocalProtectionDesired());
118 ByteArray.copyWhole(ByteArray.bitSetToBytes(flags, FLAGS_F_LENGTH), retBytes, FLAGS_F_OFFSET);
124 public int getObjectType() {
129 public int getObjectClass() {