import java.util.BitSet;
import org.opendaylight.protocol.pcep.PCEPDeserializerException;
-import org.opendaylight.protocol.pcep.impl.Util.BiParsersMap;
-import org.opendaylight.protocol.pcep.subobject.RROGeneralizedLabelSubobject;
-import org.opendaylight.protocol.pcep.subobject.RROLabelSubobject;
-import org.opendaylight.protocol.pcep.subobject.RROType1LabelSubobject;
-import org.opendaylight.protocol.pcep.subobject.RROWavebandSwitchingLabelSubobject;
+import org.opendaylight.protocol.pcep.spi.LabelHandlerRegistry;
+import org.opendaylight.protocol.pcep.spi.LabelParser;
+import org.opendaylight.protocol.pcep.spi.LabelSerializer;
+import org.opendaylight.protocol.pcep.spi.RROSubobjectParser;
+import org.opendaylight.protocol.pcep.spi.RROSubobjectSerializer;
import org.opendaylight.protocol.util.ByteArray;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.Subobjects;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.SubobjectsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.CLabel;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.LabelSubobject;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.record.route.subobjects.subobject.type.LabelBuilder;
-public class RROLabelSubobjectParser {
+import com.google.common.base.Preconditions;
- public static final int RES_F_LENGTH = 1;
+public class RROLabelSubobjectParser implements RROSubobjectParser, RROSubobjectSerializer {
- public static final int C_TYPE_F_LENGTH = 1;
+ public static final int TYPE = 3;
- public static final int RES_F_OFFSET = 0;
+ public static final int RES_F_LENGTH = 1;
- public static final int C_TYPE_F_OFFSET = RES_F_OFFSET + RES_F_LENGTH;
+ public static final int C_TYPE_F_LENGTH = 1;
- public static final int HEADER_LENGTH = C_TYPE_F_OFFSET + C_TYPE_F_LENGTH;
+ public static final int RES_F_OFFSET = 0;
- public static final int U_FLAG_OFFSET = 0;
+ public static final int C_TYPE_F_OFFSET = RES_F_OFFSET + RES_F_LENGTH;
- private static class MapOfParsers extends BiParsersMap<Class<? extends RROLabelSubobject>, Integer, RROLabelParser> {
- private final static MapOfParsers instance = new MapOfParsers();
+ public static final int HEADER_LENGTH = C_TYPE_F_OFFSET + C_TYPE_F_LENGTH;
- private MapOfParsers() {
- this.fillInMap();
- }
+ public static final int U_FLAG_OFFSET = 0;
- private void fillInMap() {
- this.put(RROType1LabelSubobject.class, 1, new RROType1LabelSubobjectParser());
- this.put(RROGeneralizedLabelSubobject.class, 2, new RROGeneralizedLabelSubobjectParser());
- this.put(RROWavebandSwitchingLabelSubobject.class, 3, new RROWavebandSwitchingLabelSubobjectParser());
- }
+ private final LabelHandlerRegistry registry;
- public static MapOfParsers getInstance() {
- return instance;
+ public RROLabelSubobjectParser(final LabelHandlerRegistry labelReg) {
+ this.registry = Preconditions.checkNotNull(labelReg);
}
- }
- public static RROLabelSubobject parse(byte[] soContentsBytes) throws PCEPDeserializerException {
- if (soContentsBytes == null || soContentsBytes.length == 0)
- throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
- if (soContentsBytes.length < HEADER_LENGTH)
- throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + soContentsBytes.length + "; Expected: >" + HEADER_LENGTH + ".");
+ @Override
+ public Subobjects parseSubobject(final byte[] buffer) throws PCEPDeserializerException {
+ if (buffer == null || buffer.length == 0)
+ throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
+ if (buffer.length < HEADER_LENGTH)
+ throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.length + "; Expected: >"
+ + HEADER_LENGTH + ".");
+
+ final BitSet reserved = ByteArray.bytesToBitSet(Arrays.copyOfRange(buffer, RES_F_OFFSET, RES_F_LENGTH));
- final BitSet reserved = ByteArray.bytesToBitSet(Arrays.copyOfRange(soContentsBytes, RES_F_OFFSET, RES_F_LENGTH));
+ final short c_type = (short) (buffer[C_TYPE_F_OFFSET] & 0xFF);
- final int c_type = soContentsBytes[C_TYPE_F_OFFSET] & 0xFF;
+ final LabelParser parser = this.registry.getLabelParser(c_type);
- final RROLabelParser parser = MapOfParsers.getInstance().getValueFromKeyValue(c_type);
+ if (parser == null) {
+ throw new PCEPDeserializerException("Unknown C-TYPE for ero label subobject. Passed: " + c_type);
+ }
- if (parser == null) {
- throw new PCEPDeserializerException("Unknown C-TYPE for ero label subobject. Passed: " + c_type);
+ final LabelBuilder builder = new LabelBuilder();
+ builder.setUniDirectional(reserved.get(U_FLAG_OFFSET));
+ builder.setLabelType(parser.parseLabel(ByteArray.cutBytes(buffer, HEADER_LENGTH)));
+ return new SubobjectsBuilder().setSubobjectType(builder.build()).build();
}
- return parser.parse(ByteArray.cutBytes(soContentsBytes, HEADER_LENGTH), reserved.get(U_FLAG_OFFSET));
- }
+ @Override
+ public byte[] serializeSubobject(final Subobjects subobject) {
+ final LabelSubobject label = (LabelSubobject) subobject.getSubobjectType();
+ final LabelSerializer parser = this.registry.getLabelSerializer((CLabel) label);
- public static byte[] put(RROLabelSubobject objToSerialize) {
- final Integer c_type = MapOfParsers.getInstance().getKeyValueFromKey(objToSerialize.getClass());
- final RROLabelParser parser = MapOfParsers.getInstance().getValueFromKeyValue(c_type);
+ if (parser == null)
+ throw new IllegalArgumentException("Unknown RROLabelSubobject instance. Passed " + subobject.getSubobjectType().getClass());
- if (c_type == null || parser == null)
- throw new IllegalArgumentException("Unknown RROLabelSubobject instance. Passed " + objToSerialize.getClass());
+ final byte[] labelbytes = parser.serializeSubobject((CLabel) label);
- final byte[] labelbytes = parser.put(objToSerialize);
+ final byte[] retBytes = new byte[labelbytes.length + HEADER_LENGTH];
- final byte[] retBytes = new byte[labelbytes.length + HEADER_LENGTH];
+ System.arraycopy(labelbytes, 0, retBytes, HEADER_LENGTH, labelbytes.length);
- System.arraycopy(labelbytes, 0, retBytes, HEADER_LENGTH, labelbytes.length);
+ final BitSet reserved = new BitSet();
+ reserved.set(U_FLAG_OFFSET, label.isUniDirectional());
+ System.arraycopy(ByteArray.bitSetToBytes(reserved, RES_F_LENGTH), 0, retBytes, RES_F_OFFSET, RES_F_LENGTH);
- final BitSet reserved = new BitSet();
- reserved.set(U_FLAG_OFFSET, objToSerialize.isUpStream());
- System.arraycopy(ByteArray.bitSetToBytes(reserved, RES_F_LENGTH), 0, retBytes, RES_F_OFFSET, RES_F_LENGTH);
+ retBytes[C_TYPE_F_OFFSET] = (byte) parser.getType();
- retBytes[C_TYPE_F_OFFSET] = (byte) c_type.intValue();
+ return retBytes;
+ }
- return retBytes;
- }
+ @Override
+ public int getType() {
+ return TYPE;
+ }
}
Code Review / bgpcep.git / blobdiff