+++ /dev/null
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.protocol.pcep.ietf.stateful07;
-
-import static com.google.common.base.Preconditions.checkArgument;
-
-import com.google.common.primitives.UnsignedBytes;
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.Unpooled;
-import java.util.List;
-import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
-import org.opendaylight.protocol.pcep.spi.ObjectUtil;
-import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
-import org.opendaylight.protocol.pcep.spi.TlvRegistry;
-import org.opendaylight.protocol.pcep.spi.VendorInformationTlvRegistry;
-import org.opendaylight.protocol.util.BitArray;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.OperationalStatus;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.PlspId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.error.code.tlv.LspErrorCode;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiers;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.Lsp;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.LspBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.lsp.Tlvs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.lsp.TlvsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.path.binding.tlv.PathBinding;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.rsvp.error.spec.tlv.RsvpErrorSpec;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.symbolic.path.name.tlv.SymbolicPathName;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.ObjectHeader;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Tlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.vendor.information.tlvs.VendorInformationTlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.vs.tlv.VsTlv;
-import org.opendaylight.yangtools.yang.common.Uint32;
-
-/**
- * Parser for {@link Lsp}.
- */
-public class Stateful07LspObjectParser extends AbstractObjectWithTlvsParser<TlvsBuilder> {
-
- private static final int CLASS = 32;
-
- private static final int TYPE = 1;
-
- /*
- * 12b extended to 16b so first 4b are restricted (belongs to LSP ID)
- */
- protected static final int DELEGATE = 11;
- protected static final int SYNC = 10;
- protected static final int REMOVE = 9;
- protected static final int ADMINISTRATIVE = 8;
- protected static final int OPERATIONAL = 5;
-
- protected static final int FOUR_BITS_SHIFT = 4;
- protected static final int FLAGS_SIZE = 12;
-
- public Stateful07LspObjectParser(final TlvRegistry tlvReg, final VendorInformationTlvRegistry viTlvReg) {
- super(tlvReg, viTlvReg, CLASS, TYPE);
- }
-
- @Override
- public Lsp parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
- checkArgument(bytes != null && bytes.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
- final LspBuilder builder = new LspBuilder();
- builder.setIgnore(header.isIgnore());
- builder.setProcessingRule(header.isProcessingRule());
- final int[] plspIdRaw
- = new int[] { bytes.readUnsignedByte(), bytes.readUnsignedByte(), bytes.getUnsignedByte(2), };
- builder.setPlspId(new PlspId(Uint32.valueOf(plspIdRaw[0] << FLAGS_SIZE | plspIdRaw[1] << FOUR_BITS_SHIFT
- | plspIdRaw[2] >> FOUR_BITS_SHIFT)));
- parseFlags(builder, bytes);
- final TlvsBuilder b = new TlvsBuilder();
- parseTlvs(b, bytes.slice());
- builder.setTlvs(b.build());
- return builder.build();
- }
-
- protected void parseFlags(final LspBuilder builder, final ByteBuf bytes) {
- final BitArray flags = BitArray.valueOf(bytes, FLAGS_SIZE);
- builder.setDelegate(flags.get(DELEGATE));
- builder.setSync(flags.get(SYNC));
- builder.setRemove(flags.get(REMOVE));
- builder.setAdministrative(flags.get(ADMINISTRATIVE));
- short oper = 0;
- oper |= flags.get(OPERATIONAL + 2) ? 1 : 0;
- oper |= (flags.get(OPERATIONAL + 1) ? 1 : 0) << 1;
- oper |= (flags.get(OPERATIONAL) ? 1 : 0) << 2;
- builder.setOperational(OperationalStatus.forValue(oper));
- }
-
- @Override
- public void addTlv(final TlvsBuilder builder, final Tlv tlv) {
- if (tlv instanceof LspErrorCode) {
- builder.setLspErrorCode((LspErrorCode) tlv);
- } else if (tlv instanceof LspIdentifiers) {
- builder.setLspIdentifiers((LspIdentifiers) tlv);
- } else if (tlv instanceof RsvpErrorSpec) {
- builder.setRsvpErrorSpec((RsvpErrorSpec) tlv);
- } else if (tlv instanceof SymbolicPathName) {
- builder.setSymbolicPathName((SymbolicPathName) tlv);
- } else if (tlv instanceof VsTlv) {
- builder.setVsTlv((VsTlv) tlv);
- } else if (tlv instanceof PathBinding) {
- builder.setPathBinding((PathBinding) tlv);
- }
- }
-
- @Override
- public void serializeObject(final Object object, final ByteBuf buffer) {
- checkArgument(object instanceof Lsp, "Wrong instance of PCEPObject. Passed %s . Needed LspObject.",
- object.getClass());
- final Lsp specObj = (Lsp) object;
- final ByteBuf body = Unpooled.buffer();
- final PlspId plspId = specObj.getPlspId();
- checkArgument(plspId != null, "PLSP-ID not present");
- body.writeMedium(plspId.getValue().intValue() << FOUR_BITS_SHIFT);
- final BitArray flags = serializeFlags(specObj);
- byte op = 0;
- if (specObj.getOperational() != null) {
- op = UnsignedBytes.checkedCast(specObj.getOperational().getIntValue());
- op = (byte) (op << FOUR_BITS_SHIFT);
- }
- final byte[] res = flags.array();
- res[res.length - 1] = (byte) (res[res.length - 1] | op);
- body.writeByte(res[res.length - 1]);
- serializeTlvs(specObj.getTlvs(), body);
- ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
- }
-
- protected BitArray serializeFlags(final Lsp specObj) {
- final BitArray flags = new BitArray(FLAGS_SIZE);
- flags.set(DELEGATE, specObj.isDelegate());
- flags.set(REMOVE, specObj.isRemove());
- flags.set(SYNC, specObj.isSync());
- flags.set(ADMINISTRATIVE, specObj.isAdministrative());
- return flags;
- }
-
- public void serializeTlvs(final Tlvs tlvs, final ByteBuf body) {
- if (tlvs == null) {
- return;
- }
- if (tlvs.getLspErrorCode() != null) {
- serializeTlv(tlvs.getLspErrorCode(), body);
- }
- if (tlvs.getLspIdentifiers() != null) {
- serializeTlv(tlvs.getLspIdentifiers(), body);
- }
- if (tlvs.getRsvpErrorSpec() != null) {
- serializeTlv(tlvs.getRsvpErrorSpec(), body);
- }
- if (tlvs.getSymbolicPathName() != null) {
- serializeTlv(tlvs.getSymbolicPathName(), body);
- }
- if (tlvs.getVsTlv() != null) {
- serializeTlv(tlvs.getVsTlv(), body);
- }
- serializeVendorInformationTlvs(tlvs.getVendorInformationTlv(), body);
- if (tlvs.getPathBinding() != null) {
- serializeTlv(tlvs.getPathBinding(), body);
- }
- }
-
- @Override
- protected final void addVendorInformationTlvs(final TlvsBuilder builder, final List<VendorInformationTlv> tlvs) {
- if (!tlvs.isEmpty()) {
- builder.setVendorInformationTlv(tlvs);
- }
- }
-}
Code Review / bgpcep.git / blobdiff