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
9 package org.opendaylight.protocol.pcep.impl.object;
11 import java.util.Arrays;
12 import java.util.BitSet;
14 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
15 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
16 import org.opendaylight.protocol.pcep.impl.Util;
17 import org.opendaylight.protocol.pcep.impl.message.AbstractObjectWithTlvsParser;
18 import org.opendaylight.protocol.pcep.spi.TlvHandlerRegistry;
19 import org.opendaylight.protocol.util.ByteArray;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OrderTlv;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.RequestId;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.RpObject;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.RpBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Tlvs;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.TlvsBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.tlvs.OrderBuilder;
32 * Parser for {@link RpObject}
35 public class PCEPRequestParameterObjectParser extends AbstractObjectWithTlvsParser<RpBuilder> {
37 public static final int CLASS = 2;
39 public static final int TYPE = 1;
42 * lengths of fields in bytes
44 public static final int FLAGS_PRI_MF_LENGTH = 4; // multi-field
45 public static final int RID_F_LENGTH = 4;
48 * lengths of subfields inside multi-field in bits
50 public static final int FLAGS_SF_LENGTH = 29;
51 public static final int PRI_SF_LENGTH = 3;
54 * offsets of field in bytes
57 public static final int FLAGS_PRI_MF_OFFSET = 0;
58 public static final int RID_F_OFFSET = FLAGS_PRI_MF_OFFSET + FLAGS_PRI_MF_LENGTH;
59 public static final int TLVS_OFFSET = RID_F_OFFSET + RID_F_LENGTH;
62 * offsets of subfields inside multi-field in bits
65 public static final int FLAGS_SF_OFFSET = 0;
66 public static final int PRI_SF_OFFSET = FLAGS_SF_OFFSET + FLAGS_SF_LENGTH;
69 * flags offsets inside flags sub-field in bits
72 private static final int O_FLAG_OFFSET = 26;
73 private static final int B_FLAG_OFFSET = 27;
74 private static final int R_FLAG_OFFSET = 28;
77 * GCO extension flags offsets inside flags sub-field in bits
79 private static final int M_FLAG_OFFSET = 21;
80 private static final int D_FLAG_OFFSET = 22;
83 * OF extension flags offsets inside flags sub.field in bits
86 private static int S_FLAG_OFFSET = 24; // Supply OF on response
91 private static int F_FLAG_OFFSET = 18;
93 private static int N_FLAG_OFFSET = 19;
95 private static int E_FLAG_OFFSET = 20;
97 public PCEPRequestParameterObjectParser(final TlvHandlerRegistry tlvReg) {
102 public RpObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
103 if (bytes == null || bytes.length == 0) {
104 throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
107 final BitSet flags = ByteArray.bytesToBitSet(Arrays.copyOfRange(bytes, FLAGS_PRI_MF_OFFSET, FLAGS_PRI_MF_OFFSET
108 + FLAGS_PRI_MF_LENGTH));
110 priority |= flags.get(PRI_SF_OFFSET + 2) ? 1 : 0;
111 priority |= (flags.get(PRI_SF_OFFSET + 1) ? 1 : 0) << 1;
112 priority |= (flags.get(PRI_SF_OFFSET) ? 1 : 0) << 2;
114 final RpBuilder builder = new RpBuilder();
116 parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
118 builder.setIgnore(header.isIgnore());
119 builder.setProcessingRule(header.isProcessingRule());
121 builder.setBiDirectional(flags.get(B_FLAG_OFFSET));
122 builder.setEroCompression(flags.get(E_FLAG_OFFSET));
123 builder.setFragmentation(flags.get(F_FLAG_OFFSET));
124 builder.setLoose(flags.get(O_FLAG_OFFSET));
125 builder.setMakeBeforeBreak(flags.get(M_FLAG_OFFSET));
126 builder.setOrder(flags.get(D_FLAG_OFFSET));
127 builder.setP2mp(flags.get(N_FLAG_OFFSET));
128 builder.setReoptimization(flags.get(R_FLAG_OFFSET));
129 builder.setSupplyOf(flags.get(S_FLAG_OFFSET));
130 builder.setPriority(priority);
131 builder.setRequestId(new RequestId(ByteArray.bytesToLong(Arrays.copyOfRange(bytes, RID_F_OFFSET, RID_F_OFFSET + RID_F_LENGTH))));
133 return builder.build();
137 public void addTlv(final RpBuilder builder, final Tlv tlv) {
138 final TlvsBuilder tbuilder = new TlvsBuilder();
139 if (tlv instanceof OrderTlv) {
140 final OrderBuilder b = new OrderBuilder();
141 b.setDelete(((OrderTlv) tlv).getDelete());
142 b.setSetup(((OrderTlv) tlv).getSetup());
143 tbuilder.setOrder(b.build());
145 builder.setTlvs(tbuilder.build());
149 public byte[] serializeObject(final Object object) {
150 if (!(object instanceof RpObject)) {
151 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed RpObject.");
154 final RpObject rPObj = (RpObject) object;
156 final BitSet flags_priority = new BitSet(FLAGS_PRI_MF_LENGTH * Byte.SIZE);
158 flags_priority.set(R_FLAG_OFFSET, rPObj.isReoptimization());
159 flags_priority.set(B_FLAG_OFFSET, rPObj.isBiDirectional());
160 flags_priority.set(O_FLAG_OFFSET, rPObj.isLoose());
161 flags_priority.set(M_FLAG_OFFSET, rPObj.isMakeBeforeBreak());
162 flags_priority.set(D_FLAG_OFFSET, rPObj.isOrder());
163 flags_priority.set(S_FLAG_OFFSET, rPObj.isSupplyOf());
164 flags_priority.set(F_FLAG_OFFSET, rPObj.isFragmentation());
165 flags_priority.set(N_FLAG_OFFSET, rPObj.isP2mp());
166 flags_priority.set(E_FLAG_OFFSET, rPObj.isEroCompression());
168 flags_priority.set(PRI_SF_OFFSET, (rPObj.getPriority() & 1 << 2) != 0);
169 flags_priority.set(PRI_SF_OFFSET + 1, (rPObj.getPriority() & 1 << 1) != 0);
170 flags_priority.set(PRI_SF_OFFSET + 2, (rPObj.getPriority() & 1) != 0);
172 final byte[] tlvs = serializeTlvs(rPObj.getTlvs());
175 tlvsLength = tlvs.length;
177 final byte[] retBytes = new byte[TLVS_OFFSET + tlvsLength + Util.getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
180 ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
183 ByteArray.copyWhole(ByteArray.bitSetToBytes(flags_priority, FLAGS_PRI_MF_LENGTH), retBytes, FLAGS_PRI_MF_OFFSET);
184 ByteArray.copyWhole(ByteArray.subByte(ByteArray.longToBytes(rPObj.getRequestId().getValue()), (Long.SIZE / Byte.SIZE)
185 - RID_F_LENGTH, RID_F_LENGTH), retBytes, RID_F_OFFSET);
190 public byte[] serializeTlvs(final Tlvs tlvs) {
191 if (tlvs.getOrder() != null) {
192 return serializeTlv(new OrderBuilder().setDelete(tlvs.getOrder().getDelete()).setSetup(tlvs.getOrder().getSetup()).build());
198 public int getObjectType() {
203 public int getObjectClass() {