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 static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedByte;
11 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedInt;
13 import com.google.common.base.Preconditions;
14 import io.netty.buffer.ByteBuf;
15 import io.netty.buffer.Unpooled;
16 import java.util.List;
17 import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
18 import org.opendaylight.protocol.pcep.spi.ObjectUtil;
19 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
20 import org.opendaylight.protocol.pcep.spi.TlvRegistry;
21 import org.opendaylight.protocol.pcep.spi.VendorInformationTlvRegistry;
22 import org.opendaylight.protocol.util.BitArray;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.LspaBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.lspa.Tlvs;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.lspa.TlvsBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.tlvs.VendorInformationTlv;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.AttributeFilter;
33 * Parser for {@link Lspa}
35 public class PCEPLspaObjectParser extends AbstractObjectWithTlvsParser<TlvsBuilder> {
37 public static final int CLASS = 9;
39 public static final int TYPE = 1;
42 * lengths of fields in bytes
44 private static final int FLAGS_SIZE = 8;
47 * offsets of flags inside flags field in bits
49 private static final int L_FLAG_OFFSET = 7;
51 private static final int RESERVED = 1;
53 public PCEPLspaObjectParser(final TlvRegistry tlvReg, final VendorInformationTlvRegistry viTlvReg) {
54 super(tlvReg, viTlvReg);
58 public Lspa parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
59 Preconditions.checkArgument(bytes != null && bytes.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
60 final LspaBuilder builder = new LspaBuilder();
61 builder.setIgnore(header.isIgnore());
62 builder.setProcessingRule(header.isProcessingRule());
64 builder.setExcludeAny(new AttributeFilter(bytes.readUnsignedInt()));
65 builder.setIncludeAll(new AttributeFilter(bytes.readUnsignedInt()));
66 builder.setIncludeAny(new AttributeFilter(bytes.readUnsignedInt()));
67 builder.setSetupPriority(bytes.readUnsignedByte());
68 builder.setHoldPriority(bytes.readUnsignedByte());
70 final BitArray flags = BitArray.valueOf(bytes.readByte());
71 builder.setLocalProtectionDesired(flags.get(L_FLAG_OFFSET));
72 final TlvsBuilder tbuilder = new TlvsBuilder();
73 bytes.skipBytes(RESERVED);
74 parseTlvs(tbuilder, bytes.slice());
75 builder.setTlvs(tbuilder.build());
76 return builder.build();
80 public void serializeObject(final Object object, final ByteBuf buffer) {
81 Preconditions.checkArgument(object instanceof Lspa, "Wrong instance of PCEPObject. Passed %s. Needed LspaObject.", object.getClass());
82 final Lspa lspaObj = (Lspa) object;
83 final ByteBuf body = Unpooled.buffer();
84 writeAttributeFilter(lspaObj.getExcludeAny(), body);
85 writeAttributeFilter(lspaObj.getIncludeAny(), body);
86 writeAttributeFilter(lspaObj.getIncludeAll(), body);
87 writeUnsignedByte(lspaObj.getSetupPriority(), body);
88 writeUnsignedByte(lspaObj.getHoldPriority(), body);
89 final BitArray flags = new BitArray(FLAGS_SIZE);
90 flags.set(L_FLAG_OFFSET, lspaObj.isLocalProtectionDesired());
91 flags.toByteBuf(body);
92 body.writeZero(RESERVED);
93 serializeTlvs(lspaObj.getTlvs(), body);
94 ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
97 public void serializeTlvs(final Tlvs tlvs, final ByteBuf body) {
101 serializeVendorInformationTlvs(tlvs.getVendorInformationTlv(), body);
104 private void writeAttributeFilter(final AttributeFilter attributeFilter, final ByteBuf body) {
105 writeUnsignedInt(attributeFilter != null ? attributeFilter.getValue() : null, body);
109 protected final void addVendorInformationTlvs(final TlvsBuilder builder, final List<VendorInformationTlv> tlvs) {
110 if (!tlvs.isEmpty()) {
111 builder.setVendorInformationTlv(tlvs);