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.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.Object;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OrderTlv;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.RequestId;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.RpObject;
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.pcreq.message.pcreq.message.requests.RpBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Tlvs;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.TlvsBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.tlvs.OrderBuilder;
30 * Parser for {@link RpObject}
33 public class PCEPRequestParameterObjectParser extends AbstractObjectWithTlvsParser<RpBuilder> {
35 public static final int CLASS = 2;
37 public static final int TYPE = 1;
40 * lengths of fields in bytes
42 public static final int FLAGS_PRI_MF_LENGTH = 4; // multi-field
43 public static final int RID_F_LENGTH = 4;
46 * lengths of subfields inside multi-field in bits
48 public static final int FLAGS_SF_LENGTH = 29;
49 public static final int PRI_SF_LENGTH = 3;
52 * offsets of field in bytes
55 public static final int FLAGS_PRI_MF_OFFSET = 0;
56 public static final int RID_F_OFFSET = FLAGS_PRI_MF_OFFSET + FLAGS_PRI_MF_LENGTH;
57 public static final int TLVS_OFFSET = RID_F_OFFSET + RID_F_LENGTH;
60 * offsets of subfields inside multi-field in bits
63 public static final int FLAGS_SF_OFFSET = 0;
64 public static final int PRI_SF_OFFSET = FLAGS_SF_OFFSET + FLAGS_SF_LENGTH;
67 * flags offsets inside flags sub-field in bits
70 private static final int O_FLAG_OFFSET = 26;
71 private static final int B_FLAG_OFFSET = 27;
72 private static final int R_FLAG_OFFSET = 28;
75 * GCO extension flags offsets inside flags sub-field in bits
77 private static final int M_FLAG_OFFSET = 21;
78 private static final int D_FLAG_OFFSET = 22;
81 * OF extension flags offsets inside flags sub.field in bits
84 private static int S_FLAG_OFFSET = 24; // Supply OF on response
89 private static int F_FLAG_OFFSET = 18;
91 private static int N_FLAG_OFFSET = 19;
93 private static int E_FLAG_OFFSET = 20;
95 public PCEPRequestParameterObjectParser(final TlvHandlerRegistry tlvReg) {
100 public RpObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
101 if (bytes == null || bytes.length == 0) {
102 throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
105 final BitSet flags = ByteArray.bytesToBitSet(Arrays.copyOfRange(bytes, FLAGS_PRI_MF_OFFSET, FLAGS_PRI_MF_OFFSET
106 + FLAGS_PRI_MF_LENGTH));
108 priority |= flags.get(PRI_SF_OFFSET + 2) ? 1 : 0;
109 priority |= (flags.get(PRI_SF_OFFSET + 1) ? 1 : 0) << 1;
110 priority |= (flags.get(PRI_SF_OFFSET) ? 1 : 0) << 2;
112 final RpBuilder builder = new RpBuilder();
114 parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
116 builder.setIgnore(header.isIgnore());
117 builder.setProcessingRule(header.isProcessingRule());
119 builder.setBiDirectional(flags.get(B_FLAG_OFFSET));
120 builder.setEroCompression(flags.get(E_FLAG_OFFSET));
121 builder.setFragmentation(flags.get(F_FLAG_OFFSET));
122 builder.setLoose(flags.get(O_FLAG_OFFSET));
123 builder.setMakeBeforeBreak(flags.get(M_FLAG_OFFSET));
124 builder.setOrder(flags.get(D_FLAG_OFFSET));
125 builder.setP2mp(flags.get(N_FLAG_OFFSET));
126 builder.setReoptimization(flags.get(R_FLAG_OFFSET));
127 builder.setSupplyOf(flags.get(S_FLAG_OFFSET));
128 builder.setPriority(priority);
129 builder.setRequestId(new RequestId(ByteArray.bytesToLong(Arrays.copyOfRange(bytes, RID_F_OFFSET, RID_F_OFFSET + RID_F_LENGTH))));
131 return builder.build();
135 public void addTlv(final RpBuilder builder, final Tlv tlv) {
136 final TlvsBuilder tbuilder = new TlvsBuilder();
137 if (tlv instanceof OrderTlv) {
138 final OrderBuilder b = new OrderBuilder();
139 b.setDelete(((OrderTlv) tlv).getDelete());
140 b.setSetup(((OrderTlv) tlv).getSetup());
141 tbuilder.setOrder(b.build());
143 builder.setTlvs(tbuilder.build());
147 public byte[] serializeObject(final Object object) {
148 if (!(object instanceof RpObject)) {
149 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed RpObject.");
152 final RpObject rPObj = (RpObject) object;
154 final BitSet flags_priority = new BitSet(FLAGS_PRI_MF_LENGTH * Byte.SIZE);
156 flags_priority.set(R_FLAG_OFFSET, rPObj.isReoptimization());
157 flags_priority.set(B_FLAG_OFFSET, rPObj.isBiDirectional());
158 flags_priority.set(O_FLAG_OFFSET, rPObj.isLoose());
159 flags_priority.set(M_FLAG_OFFSET, rPObj.isMakeBeforeBreak());
160 flags_priority.set(D_FLAG_OFFSET, rPObj.isOrder());
161 flags_priority.set(S_FLAG_OFFSET, rPObj.isSupplyOf());
162 flags_priority.set(F_FLAG_OFFSET, rPObj.isFragmentation());
163 flags_priority.set(N_FLAG_OFFSET, rPObj.isP2mp());
164 flags_priority.set(E_FLAG_OFFSET, rPObj.isEroCompression());
166 flags_priority.set(PRI_SF_OFFSET, (rPObj.getPriority() & 1 << 2) != 0);
167 flags_priority.set(PRI_SF_OFFSET + 1, (rPObj.getPriority() & 1 << 1) != 0);
168 flags_priority.set(PRI_SF_OFFSET + 2, (rPObj.getPriority() & 1) != 0);
170 final byte[] tlvs = serializeTlvs(rPObj.getTlvs());
173 tlvsLength = tlvs.length;
175 final byte[] retBytes = new byte[TLVS_OFFSET + tlvsLength + getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
178 ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
181 ByteArray.copyWhole(ByteArray.bitSetToBytes(flags_priority, FLAGS_PRI_MF_LENGTH), retBytes, FLAGS_PRI_MF_OFFSET);
182 ByteArray.copyWhole(ByteArray.subByte(ByteArray.longToBytes(rPObj.getRequestId().getValue()), (Long.SIZE / Byte.SIZE)
183 - RID_F_LENGTH, RID_F_LENGTH), retBytes, RID_F_OFFSET);
188 public byte[] serializeTlvs(final Tlvs tlvs) {
189 if (tlvs.getOrder() != null) {
190 return serializeTlv(new OrderBuilder().setDelete(tlvs.getOrder().getDelete()).setSetup(tlvs.getOrder().getSetup()).build());
196 public int getObjectType() {
201 public int getObjectClass() {