*/
package org.opendaylight.protocol.pcep.ietf.stateful07;
-import java.util.BitSet;
-
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeMedium;
+import com.google.common.base.Preconditions;
+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.util.ByteArray;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.OperationalStatus;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PlspId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.error.code.tlv.LspErrorCode;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.LspIdentifiers;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.LspBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.lsp.Tlvs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.lsp.TlvsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.rsvp.error.spec.tlv.RsvpErrorSpec;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.symbolic.path.name.tlv.SymbolicPathName;
+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.rev171025.OperationalStatus;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.PlspId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.lsp.error.code.tlv.LspErrorCode;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.lsp.identifiers.tlv.LspIdentifiers;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.lsp.object.Lsp;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.lsp.object.LspBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.lsp.object.lsp.Tlvs;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.lsp.object.lsp.TlvsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.path.binding.tlv.PathBinding;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.rsvp.error.spec.tlv.RsvpErrorSpec;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev171025.symbolic.path.name.tlv.SymbolicPathName;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
-
-import com.google.common.base.Preconditions;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.tlvs.VendorInformationTlv;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vs.tlv.VsTlv;
/**
* Parser for {@link Lsp}
*/
public class Stateful07LspObjectParser extends AbstractObjectWithTlvsParser<TlvsBuilder> {
- public static final int CLASS = 32;
-
- public static final int TYPE = 1;
-
- /*
- * offset of TLVs offset of other fields are not defined as constants
- * because of non-standard mapping of bits
- */
- protected static final int TLVS_OFFSET = 4;
-
- /*
- * 12b extended to 16b so first 4b are restricted (belongs to LSP ID)
- */
- protected static final int DELEGATE_FLAG_OFFSET = 15;
- protected static final int SYNC_FLAG_OFFSET = 14;
- protected static final int REMOVE_FLAG_OFFSET = 13;
- protected static final int ADMINISTRATIVE_FLAG_OFFSET = 12;
- protected static final int OPERATIONAL_OFFSET = 9;
-
- public Stateful07LspObjectParser(final TlvRegistry tlvReg) {
- super(tlvReg);
- }
-
- @Override
- public Lsp parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException {
- if (bytes == null || bytes.length == 0) {
- throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
- }
- final BitSet flags = ByteArray.bytesToBitSet(ByteArray.subByte(bytes, 2, 2));
-
- final LspBuilder builder = new LspBuilder();
- builder.setIgnore(header.isIgnore());
- builder.setProcessingRule(header.isProcessingRule());
-
- builder.setPlspId(new PlspId((ByteArray.bytesToLong(ByteArray.subByte(bytes, 0, 2)) & 0xFFFF) << 4 | (bytes[2] & 0xFF) >> 4));
- builder.setDelegate(flags.get(DELEGATE_FLAG_OFFSET));
- builder.setSync(flags.get(SYNC_FLAG_OFFSET));
- builder.setRemove(flags.get(REMOVE_FLAG_OFFSET));
- builder.setAdministrative(flags.get(ADMINISTRATIVE_FLAG_OFFSET));
- short s = 0;
- s |= flags.get(OPERATIONAL_OFFSET + 2) ? 1 : 0;
- s |= (flags.get(OPERATIONAL_OFFSET + 1) ? 1 : 0) << 1;
- s |= (flags.get(OPERATIONAL_OFFSET) ? 1 : 0) << 2;
- builder.setOperational(OperationalStatus.forValue(s));
- final TlvsBuilder b = new TlvsBuilder();
- parseTlvs(b, ByteArray.cutBytes(bytes, TLVS_OFFSET));
- builder.setTlvs(b.build());
- return builder.build();
- }
-
- @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);
- }
- }
-
- @Override
- public byte[] serializeObject(final Object object) {
- if (!(object instanceof Lsp)) {
- throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed LspObject.");
- }
- final Lsp specObj = (Lsp) object;
-
- final byte[] tlvs = serializeTlvs(specObj.getTlvs());
- final byte[] retBytes = new byte[TLVS_OFFSET + tlvs.length + getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
-
- Preconditions.checkArgument(specObj.getPlspId() != null, "PLSP-ID not present");
- final int lspID = specObj.getPlspId().getValue().intValue();
- retBytes[0] = (byte) (lspID >> 12);
- retBytes[1] = (byte) (lspID >> 4);
- retBytes[2] = (byte) (lspID << 4);
- if (specObj.isDelegate() != null && specObj.isDelegate()) {
- retBytes[3] |= 1 << (Byte.SIZE - (DELEGATE_FLAG_OFFSET - Byte.SIZE) - 1);
- }
- if (specObj.isRemove() != null && specObj.isRemove()) {
- retBytes[3] |= 1 << (Byte.SIZE - (REMOVE_FLAG_OFFSET - Byte.SIZE) - 1);
- }
- if (specObj.isSync() != null && specObj.isSync()) {
- retBytes[3] |= 1 << (Byte.SIZE - (SYNC_FLAG_OFFSET - Byte.SIZE) - 1);
- }
- if (specObj.isAdministrative() != null && specObj.isAdministrative()) {
- retBytes[3] |= 1 << (Byte.SIZE - (ADMINISTRATIVE_FLAG_OFFSET - Byte.SIZE) - 1);
- }
- if (specObj.getOperational() != null) {
- final int op = specObj.getOperational().getIntValue();
- retBytes[3] |= (op & 7) << 4;
- }
- ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
- return ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), retBytes);
- }
-
- public byte[] serializeTlvs(final Tlvs tlvs) {
- if (tlvs == null) {
- return new byte[0];
- }
- int finalLength = 0;
- byte[] lspErrBytes = null;
- byte[] lspIdBytes = null;
- byte[] rsvpErrBytes = null;
- byte[] symbBytes = null;
- if (tlvs.getLspErrorCode() != null) {
- lspErrBytes = serializeTlv(tlvs.getLspErrorCode());
- finalLength += lspErrBytes.length;
- }
- if (tlvs.getLspIdentifiers() != null) {
- lspIdBytes = serializeTlv(tlvs.getLspIdentifiers());
- finalLength += lspIdBytes.length;
- }
- if (tlvs.getRsvpErrorSpec() != null) {
- rsvpErrBytes = serializeTlv(tlvs.getRsvpErrorSpec());
- finalLength += rsvpErrBytes.length;
- }
- if (tlvs.getSymbolicPathName() != null) {
- symbBytes = serializeTlv(tlvs.getSymbolicPathName());
- finalLength += symbBytes.length;
- }
- int offset = 0;
- final byte[] result = new byte[finalLength];
- if (lspErrBytes != null) {
- ByteArray.copyWhole(lspErrBytes, result, offset);
- offset += lspErrBytes.length;
- }
- if (lspIdBytes != null) {
- ByteArray.copyWhole(lspIdBytes, result, offset);
- offset += lspIdBytes.length;
- }
- if (rsvpErrBytes != null) {
- ByteArray.copyWhole(rsvpErrBytes, result, offset);
- offset += rsvpErrBytes.length;
- }
- if (symbBytes != null) {
- ByteArray.copyWhole(symbBytes, result, offset);
- offset += symbBytes.length;
- }
- return result;
- }
-
- @Override
- public int getObjectType() {
- return TYPE;
- }
-
- @Override
- public int getObjectClass() {
- return CLASS;
- }
+ 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 {
+ Preconditions.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((long) ((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 s = 0;
+ s |= flags.get(OPERATIONAL + 2) ? 1 : 0;
+ s |= (flags.get(OPERATIONAL + 1) ? 1 : 0) << 1;
+ s |= (flags.get(OPERATIONAL) ? 1 : 0) << 2;
+ builder.setOperational(OperationalStatus.forValue(s));
+ }
+
+ @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) {
+ Preconditions.checkArgument(object instanceof Lsp, "Wrong instance of PCEPObject. Passed %s . Needed LspObject.", object.getClass());
+ final Lsp specObj = (Lsp) object;
+ final ByteBuf body = Unpooled.buffer();
+ Preconditions.checkArgument(specObj.getPlspId() != null, "PLSP-ID not present");
+ writeMedium(specObj.getPlspId().getValue().intValue() << FOUR_BITS_SHIFT, body);
+ 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