package org.opendaylight.protocol.pcep.impl.object;
+import java.util.List;
+
import org.opendaylight.protocol.pcep.PCEPDeserializerException;
import org.opendaylight.protocol.pcep.PCEPDocumentedException;
import org.opendaylight.protocol.pcep.PCEPErrors;
+import org.opendaylight.protocol.pcep.PCEPObject;
+import org.opendaylight.protocol.pcep.PCEPTlv;
+import org.opendaylight.protocol.pcep.impl.PCEPObjectParser;
+import org.opendaylight.protocol.pcep.impl.PCEPTlvParser;
import org.opendaylight.protocol.pcep.impl.Util;
-import org.opendaylight.protocol.pcep.spi.AbstractObjectParser;
-import org.opendaylight.protocol.pcep.spi.HandlerRegistry;
+import org.opendaylight.protocol.pcep.object.PCEPOpenObject;
+import org.opendaylight.protocol.pcep.tlv.OFListTlv;
import org.opendaylight.protocol.util.ByteArray;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.LspDbVersionTlv;
-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.OfListTlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OpenObject;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PredundancyGroupIdTlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ProtocolVersion;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.StatefulCapabilityTlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.message.open.message.OpenBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Tlvs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.TlvsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.LspDbVersionBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.OfListBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.PredundancyGroupIdBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.tlvs.StatefulBuilder;
-
import com.google.common.primitives.UnsignedBytes;
/**
- * Parser for {@link OpenObject}
+ * Parser for {@link org.opendaylight.protocol.pcep.object.PCEPOpenObject PCEPOpenObject}
*/
-public class PCEPOpenObjectParser extends AbstractObjectParser<OpenBuilder> {
-
- public static final int CLASS = 1;
-
- public static final int TYPE = 1;
+public class PCEPOpenObjectParser implements PCEPObjectParser {
/*
* lengths of fields in bytes
public static final int VERSION_SF_OFFSET = 0;
public static final int FLAGS_SF_OFFSET = VERSION_SF_LENGTH + VERSION_SF_OFFSET;
- private static final int PCEP_VERSION = 1;
-
- public PCEPOpenObjectParser(final HandlerRegistry registry) {
- super(registry);
- }
+ public static final int PADDED_TO = 4;
@Override
- public OpenObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
+ public PCEPOpenObject parse(byte[] bytes, boolean processed, boolean ignored) throws PCEPDeserializerException, PCEPDocumentedException {
if (bytes == null || bytes.length == 0)
throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
+ if (bytes.length < TLVS_OFFSET)
+ throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.length + "; Expected: >=" + TLVS_OFFSET + ".");
+
+ // parse version
final int versionValue = ByteArray.copyBitsRange(bytes[VER_FLAGS_MF_OFFSET], VERSION_SF_OFFSET, VERSION_SF_LENGTH);
- if (versionValue != PCEP_VERSION)
+ if (versionValue != PCEPOpenObject.PCEP_VERSION)
throw new PCEPDocumentedException("Unsupported PCEP version " + versionValue, PCEPErrors.PCEP_VERSION_NOT_SUPPORTED);
- final OpenBuilder builder = new OpenBuilder();
+ final List<PCEPTlv> tlvs = PCEPTlvParser.parse(ByteArray.cutBytes(bytes, TLVS_OFFSET));
+ boolean ofListOccure = false;
- parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
+ for (final PCEPTlv tlv : tlvs) {
+ if (tlv instanceof OFListTlv) {
+ if (ofListOccure)
+ throw new PCEPDocumentedException("Invalid or unexpected message", PCEPErrors.NON_OR_INVALID_OPEN_MSG);
- builder.setVersion(new ProtocolVersion((short) versionValue));
- builder.setProcessingRule(header.isProcessingRule());
- builder.setIgnore(header.isIgnore());
- builder.setDeadTimer((short) UnsignedBytes.toInt(bytes[DEAD_TIMER_OFFSET]));
- builder.setKeepalive((short) UnsignedBytes.toInt(bytes[KEEPALIVE_F_OFFSET]));
- builder.setSessionId((short) UnsignedBytes.toInt(bytes[SID_F_OFFSET]));
- return builder.build();
- }
+ ofListOccure = true;
+ }
+ }
- @Override
- public void addTlv(final OpenBuilder builder, final Tlv tlv) {
- final TlvsBuilder tbuilder = new TlvsBuilder();
- if (tlv instanceof OfListTlv)
- tbuilder.setOfList(new OfListBuilder().setCodes(((OfListTlv) tlv).getCodes()).build());
- else if (tlv instanceof StatefulCapabilityTlv)
- tbuilder.setStateful(new StatefulBuilder().setFlags(((StatefulCapabilityTlv) tlv).getFlags()).build());
- else if (tlv instanceof PredundancyGroupIdTlv)
- tbuilder.setPredundancyGroupId(new PredundancyGroupIdBuilder().setIdentifier(((PredundancyGroupIdTlv) tlv).getIdentifier()).build());
- else if (tlv instanceof LspDbVersionTlv)
- tbuilder.setLspDbVersion(new LspDbVersionBuilder().build());
- builder.setTlvs(tbuilder.build());
+ return new PCEPOpenObject(UnsignedBytes.toInt(bytes[KEEPALIVE_F_OFFSET]), UnsignedBytes.toInt(bytes[DEAD_TIMER_OFFSET]),
+ UnsignedBytes.toInt(bytes[SID_F_OFFSET]), tlvs);
}
@Override
- public byte[] serializeObject(final Object object) {
- if (!(object instanceof OpenObject))
- throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed OpenObject.");
- final OpenObject open = (OpenObject) object;
+ public byte[] put(PCEPObject obj) {
+ if (!(obj instanceof PCEPOpenObject))
+ throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + obj.getClass() + ". Needed PCEPOpenObject.");
- final byte versionFlagMF = (byte) (PCEP_VERSION << (Byte.SIZE - VERSION_SF_LENGTH));
+ final PCEPOpenObject openObj = (PCEPOpenObject) obj;
- final byte[] tlvs = serializeTlvs(open.getTlvs());
+ final byte versionFlagMF = (byte) (PCEPOpenObject.PCEP_VERSION << (Byte.SIZE - VERSION_SF_LENGTH));
+ final byte[] tlvs = PCEPTlvParser.put(openObj.getTlvs());
final byte[] bytes = new byte[TLVS_OFFSET + tlvs.length + Util.getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
+ // serialize version_flags multi-field
bytes[VER_FLAGS_MF_OFFSET] = versionFlagMF;
- bytes[KEEPALIVE_F_OFFSET] = ByteArray.shortToBytes(open.getKeepalive())[1];
- bytes[DEAD_TIMER_OFFSET] = ByteArray.shortToBytes(open.getDeadTimer())[1];
- bytes[SID_F_OFFSET] = ByteArray.shortToBytes(open.getSessionId())[1];
- ByteArray.copyWhole(tlvs, bytes, TLVS_OFFSET);
- return bytes;
- }
+ // serialize keepalive
+ bytes[KEEPALIVE_F_OFFSET] = (byte) openObj.getKeepAliveTimerValue();
- public byte[] serializeTlvs(final Tlvs tlvs) {
- int finalLength = 0;
- if (tlvs.getLspDbVersion() != null) {
- final byte[] lspDbBytes = serializeTlv(new LspDbVersionBuilder().setVersion(tlvs.getLspDbVersion().getVersion()).build());
- finalLength = lspDbBytes.length;
- }
- if (tlvs.getOfList() != null) {
- final byte[] ofListBytes = serializeTlv(new OfListBuilder().setCodes(tlvs.getOfList().getCodes()).build());
- finalLength = ofListBytes.length;
- }
+ // serialize dead timer
+ bytes[DEAD_TIMER_OFFSET] = (byte) openObj.getDeadTimerValue();
- // FIXME: finish
+ // serialize SID
+ bytes[SID_F_OFFSET] = (byte) openObj.getSessionId();
- final byte[] bytes = new byte[finalLength];
+ // serialize tlvs
+ ByteArray.copyWhole(tlvs, bytes, TLVS_OFFSET);
- // FIXME copy result bytes
return bytes;
}
-
- @Override
- public int getObjectType() {
- return TYPE;
- }
-
- @Override
- public int getObjectClass() {
- return CLASS;
- }
}
Code Review / bgpcep.git / blobdiff