*/
package org.opendaylight.protocol.pcep.impl.subobject;
-import org.opendaylight.protocol.pcep.PCEPDeserializerException;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeBitSet;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedInt;
+
+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.PCEPDeserializerException;
import org.opendaylight.protocol.pcep.spi.RROSubobjectParser;
import org.opendaylight.protocol.pcep.spi.RROSubobjectSerializer;
+import org.opendaylight.protocol.pcep.spi.RROSubobjectUtil;
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.pcep.types.rev131005.reported.route.object.rro.Subobject;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.rro.SubobjectBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.UnnumberedSubobject;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.record.route.subobjects.subobject.type.UnnumberedBuilder;
-
-import com.google.common.primitives.UnsignedInts;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.record.route.subobjects.subobject.type.UnnumberedCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.record.route.subobjects.subobject.type.UnnumberedCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.record.route.subobjects.subobject.type.unnumbered._case.UnnumberedBuilder;
/**
- * Parser for {@link org.opendaylight.protocol.pcep.subobject.RROUnnumberedInterfaceSubobject
- * RROUnnumberedInterfaceSubobject}
+ * Parser for {@link UnnumberedCase}
*/
public class RROUnnumberedInterfaceSubobjectParser implements RROSubobjectParser, RROSubobjectSerializer {
- public static final int TYPE = 4;
-
- public static final int ROUTER_ID_NUMBER_LENGTH = 4;
- public static final int INTERFACE_ID_NUMBER_LENGTH = 4;
-
- public static final int ROUTER_ID_NUMBER_OFFSET = 2; // added reserved field of size 2
- public static final int INTERFACE_ID_NUMBER_OFFSET = ROUTER_ID_NUMBER_OFFSET + ROUTER_ID_NUMBER_LENGTH;
-
- public static final int CONTENT_LENGTH = INTERFACE_ID_NUMBER_OFFSET + INTERFACE_ID_NUMBER_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 != CONTENT_LENGTH)
- throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.length + "; Expected: "
- + CONTENT_LENGTH + ".");
-
- final SubobjectsBuilder builder = new SubobjectsBuilder();
- final UnnumberedBuilder ubuilder = new UnnumberedBuilder();
- ubuilder.setRouterId(ByteArray.bytesToLong(ByteArray.subByte(buffer, ROUTER_ID_NUMBER_OFFSET, ROUTER_ID_NUMBER_LENGTH)));
- ubuilder.setInterfaceId(UnsignedInts.toLong(ByteArray.bytesToInt(ByteArray.subByte(buffer, INTERFACE_ID_NUMBER_OFFSET,
- INTERFACE_ID_NUMBER_LENGTH))));
- builder.setSubobjectType(ubuilder.build());
- return builder.build();
- }
+ public static final int TYPE = 4;
- @Override
- public byte[] serializeSubobject(final Subobjects subobject) {
- if (!(subobject.getSubobjectType() instanceof UnnumberedSubobject))
- throw new IllegalArgumentException("Unknown ReportedRouteSubobject instance. Passed " + subobject.getSubobjectType().getClass()
- + ". Needed UnnumberedSubobject.");
+ private static final int FLAGS_F_LENGTH = 1;
+ private static final int RESERVED = 1;
- byte[] retBytes;
- retBytes = new byte[CONTENT_LENGTH];
- final UnnumberedSubobject specObj = (UnnumberedSubobject) subobject.getSubobjectType();
+ private static final int CONTENT_LENGTH = 10;
- ByteArray.copyWhole(ByteArray.longToBytes(specObj.getRouterId()), retBytes, ROUTER_ID_NUMBER_OFFSET);
- System.arraycopy(ByteArray.longToBytes(specObj.getInterfaceId()), Long.SIZE / Byte.SIZE - INTERFACE_ID_NUMBER_LENGTH, retBytes,
- INTERFACE_ID_NUMBER_OFFSET, INTERFACE_ID_NUMBER_LENGTH);
+ private static final int LPA_F_OFFSET = 7;
+ private static final int LPIU_F_OFFSET = 6;
- return retBytes;
- }
+ @Override
+ public Subobject parseSubobject(final ByteBuf buffer) throws PCEPDeserializerException {
+ Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
+ if (buffer.readableBytes() != CONTENT_LENGTH) {
+ throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + "; Expected: "
+ + CONTENT_LENGTH + ".");
+ }
+ final SubobjectBuilder builder = new SubobjectBuilder();
+ final BitSet flags = ByteArray.bytesToBitSet(ByteArray.readBytes(buffer, FLAGS_F_LENGTH));
+ builder.setProtectionAvailable(flags.get(LPA_F_OFFSET));
+ builder.setProtectionInUse(flags.get(LPIU_F_OFFSET));
+ final UnnumberedBuilder ubuilder = new UnnumberedBuilder();
+ buffer.skipBytes(RESERVED);
+ ubuilder.setRouterId(buffer.readUnsignedInt());
+ ubuilder.setInterfaceId(buffer.readUnsignedInt());
+ builder.setSubobjectType(new UnnumberedCaseBuilder().setUnnumbered(ubuilder.build()).build());
+ return builder.build();
+ }
- @Override
- public int getType() {
- return TYPE;
- }
+ @Override
+ public void serializeSubobject(final Subobject subobject, final ByteBuf buffer) {
+ Preconditions.checkArgument(subobject.getSubobjectType() instanceof UnnumberedCase, "Unknown subobject instance. Passed %s. Needed UnnumberedCase.", subobject.getSubobjectType().getClass());
+ final UnnumberedSubobject specObj = ((UnnumberedCase) subobject.getSubobjectType()).getUnnumbered();
+ final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
+ if (subobject.isProtectionAvailable() != null) {
+ flags.set(LPA_F_OFFSET, subobject.isProtectionAvailable());
+ }
+ if (subobject.isProtectionInUse() != null) {
+ flags.set(LPIU_F_OFFSET, subobject.isProtectionInUse());
+ }
+ final ByteBuf body = Unpooled.buffer(CONTENT_LENGTH);
+ writeBitSet(flags, FLAGS_F_LENGTH, body);
+ body.writeZero(RESERVED);
+ Preconditions.checkArgument(specObj.getRouterId() != null, "RouterId is mandatory.");
+ writeUnsignedInt(specObj.getRouterId(), body);
+ Preconditions.checkArgument(specObj.getInterfaceId() != null, "InterfaceId is mandatory.");
+ writeUnsignedInt(specObj.getInterfaceId(), body);
+ RROSubobjectUtil.formatSubobject(TYPE, body, buffer);
+ }
}
Code Review / bgpcep.git / blobdiff