*/
package org.opendaylight.protocol.pcep.impl.object;
-import java.util.BitSet;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeBitSet;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeFloat32;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedByte;
-import org.opendaylight.protocol.pcep.PCEPDeserializerException;
-import org.opendaylight.protocol.pcep.PCEPDocumentedException;
-import org.opendaylight.protocol.pcep.spi.AbstractObjectParser;
-import org.opendaylight.protocol.pcep.spi.HandlerRegistry;
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import java.util.BitSet;
+import org.opendaylight.protocol.pcep.spi.ObjectParser;
+import org.opendaylight.protocol.pcep.spi.ObjectSerializer;
+import org.opendaylight.protocol.pcep.spi.ObjectUtil;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
import org.opendaylight.protocol.util.ByteArray;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ieee754.rev130819.Float32;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.MetricObject;
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 org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.svec.Metric;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.svec.MetricBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.MetricBuilder;
/**
- * Parser for {@link org.opendaylight.protocol.pcep.object.PCEPMetricObject PCEPMetricObject}
+ * Parser for {@link Metric}
*/
-public class PCEPMetricObjectParser extends AbstractObjectParser<MetricBuilder> {
-
- public static final int CLASS = 6;
-
- public static final int TYPE = 1;
-
- /*
- * lengths of fields in bytes
- */
- private static final int FLAGS_F_LENGTH = 1;
- private static final int TYPE_F_LENGTH = 1;
- private static final int METRIC_VALUE_F_LENGTH = 4;
-
- /*
- * offsets of fields in bytes
- */
- public static final int FLAGS_F_OFFSET = 2;
- public static final int TYPE_F_OFFSET = FLAGS_F_OFFSET + FLAGS_F_LENGTH;
- public static final int METRIC_VALUE_F_OFFSET = TYPE_F_OFFSET + TYPE_F_LENGTH;
-
- /*
- * flags offsets inside flags field in bits
- */
- private static final int C_FLAG_OFFSET = 6;
- private static final int B_FLAG_OFFSET = 7;
-
- public static final int SIZE = METRIC_VALUE_F_OFFSET + METRIC_VALUE_F_LENGTH;
-
- public PCEPMetricObjectParser(final HandlerRegistry registry) {
- super(registry);
- }
-
- @Override
- public MetricObject parseObject(final ObjectHeader header, final byte[] bytes) 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 != SIZE)
- throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.length + "; Expected: " + SIZE + ".");
- final byte[] flagBytes = { bytes[FLAGS_F_OFFSET] };
- final BitSet flags = ByteArray.bytesToBitSet(flagBytes);
-
- final MetricBuilder builder = new MetricBuilder();
-
- builder.setIgnore(header.isIgnore());
- builder.setProcessingRule(header.isProcessingRule());
-
- builder.setBound(flags.get(B_FLAG_OFFSET));
- builder.setComputed(flags.get(C_FLAG_OFFSET));
- builder.setMetricType((short) (bytes[TYPE_F_OFFSET] & 0xFF));
- builder.setValue(new Float32(ByteArray.subByte(bytes, METRIC_VALUE_F_OFFSET, METRIC_VALUE_F_LENGTH)));
-
- return builder.build();
- }
-
- @Override
- public void addTlv(final MetricBuilder builder, final Tlv tlv) {
- // No tlvs defined
- }
-
- @Override
- public byte[] serializeObject(final Object object) {
- if (!(object instanceof MetricObject))
- throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed MetricObject.");
-
- final MetricObject mObj = (MetricObject) object;
-
- final byte[] retBytes = new byte[SIZE];
- final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
- flags.set(C_FLAG_OFFSET, ((Metric) mObj).isComputed());
- flags.set(B_FLAG_OFFSET, mObj.isBound());
-
- ByteArray.copyWhole(ByteArray.bitSetToBytes(flags, FLAGS_F_LENGTH), retBytes, FLAGS_F_OFFSET);
-
- System.arraycopy(mObj.getValue().getValue(), 0, retBytes, METRIC_VALUE_F_OFFSET, METRIC_VALUE_F_LENGTH);
-
- return retBytes;
- }
-
- @Override
- public int getObjectType() {
- return TYPE;
- }
-
- @Override
- public int getObjectClass() {
- return CLASS;
- }
+public class PCEPMetricObjectParser implements ObjectParser, ObjectSerializer {
+
+ public static final int CLASS = 6;
+
+ public static final int TYPE = 1;
+
+ /*
+ * lengths of fields in bytes
+ */
+ private static final int FLAGS_F_LENGTH = 1;
+ private static final int METRIC_VALUE_F_LENGTH = 4;
+
+ /*
+ * offsets of fields in bytes
+ */
+ private static final int RESERVED = 2;
+
+ /*
+ * flags offsets inside flags field in bits
+ */
+ private static final int C_FLAG_OFFSET = 6;
+ private static final int B_FLAG_OFFSET = 7;
+
+ private static final int SIZE = METRIC_VALUE_F_LENGTH + METRIC_VALUE_F_LENGTH;
+
+ @Override
+ public Metric 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.");
+ if (bytes.readableBytes() != SIZE) {
+ throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.readableBytes() + "; Expected: " + SIZE
+ + ".");
+ }
+ bytes.skipBytes(RESERVED);
+ final byte[] flagBytes = { bytes.readByte() };
+ final BitSet flags = ByteArray.bytesToBitSet(flagBytes);
+ final MetricBuilder builder = new MetricBuilder();
+ builder.setIgnore(header.isIgnore());
+ builder.setProcessingRule(header.isProcessingRule());
+ builder.setBound(flags.get(B_FLAG_OFFSET));
+ builder.setComputed(flags.get(C_FLAG_OFFSET));
+ builder.setMetricType(bytes.readUnsignedByte());
+ builder.setValue(new Float32(ByteArray.readBytes(bytes, METRIC_VALUE_F_LENGTH)));
+ return builder.build();
+ }
+
+ @Override
+ public void serializeObject(final Object object, final ByteBuf buffer) {
+ Preconditions.checkArgument(object instanceof Metric, "Wrong instance of PCEPObject. Passed %s. Needed MetricObject.", object.getClass());
+ final Metric mObj = (Metric) object;
+ final ByteBuf body = Unpooled.buffer(SIZE);
+ body.writeZero(RESERVED);
+ final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
+ if (mObj.isComputed() != null) {
+ flags.set(C_FLAG_OFFSET, mObj.isComputed());
+ }
+ if (mObj.isBound() != null) {
+ flags.set(B_FLAG_OFFSET, mObj.isBound());
+ }
+ writeBitSet(flags, FLAGS_F_LENGTH, body);
+ Preconditions.checkArgument(mObj.getMetricType() != null, "MetricType is mandatory.");
+ writeUnsignedByte(mObj.getMetricType(), body);
+ writeFloat32(mObj.getValue(), body);
+ ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
+ }
}
Code Review / bgpcep.git / blobdiff