*/
package org.opendaylight.protocol.pcep.impl.subobject;
+import io.netty.buffer.ByteBuf;
+
+import java.util.ArrayList;
import java.util.List;
-import org.opendaylight.protocol.pcep.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.impl.object.EROSubobjectUtil;
import org.opendaylight.protocol.pcep.spi.EROSubobjectParser;
import org.opendaylight.protocol.pcep.spi.EROSubobjectSerializer;
-import org.opendaylight.protocol.pcep.spi.XROSubobjectHandlerRegistry;
-import org.opendaylight.protocol.pcep.spi.XROSubobjectParser;
-import org.opendaylight.protocol.pcep.spi.XROSubobjectSerializer;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.spi.XROSubobjectRegistry;
import org.opendaylight.protocol.util.ByteArray;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.Subobjects;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.SubobjectsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.Exrs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs.ExrsBuilder;
-
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.Subobject;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.SubobjectBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.ExrsCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.ExrsCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs._case.Exrs;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs._case.ExrsBuilder;
+
+import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
import com.google.common.primitives.UnsignedBytes;
public static final int TYPE = 33;
- private static final int SUB_TYPE_FLAG_F_LENGTH = 1;
- private static final int SUB_LENGTH_F_LENGTH = 1;
- private static final int SUB_HEADER_LENGTH = SUB_TYPE_FLAG_F_LENGTH + SUB_LENGTH_F_LENGTH;
-
- private static final int TYPE_FLAG_F_OFFSET = 0;
- private static final int LENGTH_F_OFFSET = TYPE_FLAG_F_OFFSET + SUB_TYPE_FLAG_F_LENGTH;
- private static final int SO_CONTENTS_OFFSET = LENGTH_F_OFFSET + SUB_LENGTH_F_LENGTH;
+ private static final int HEADER_LENGTH = 2;
- private final XROSubobjectHandlerRegistry registry;
+ private final XROSubobjectRegistry registry;
- public EROExplicitExclusionRouteSubobjectParser(final XROSubobjectHandlerRegistry registry) {
+ public EROExplicitExclusionRouteSubobjectParser(final XROSubobjectRegistry registry) {
this.registry = registry;
}
@Override
- public Subobjects parseSubobject(final byte[] buffer, final boolean loose) throws PCEPDeserializerException {
- if (buffer == null || buffer.length == 0) {
- throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
- }
- final SubobjectsBuilder builder = new SubobjectsBuilder();
+ public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
+ Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
+ final SubobjectBuilder builder = new SubobjectBuilder();
builder.setLoose(loose);
- final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects> list = parseSubobjects(buffer);
- final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs.Exrs> exrss = Lists.newArrayList();
- for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects s : list) {
- final ExrsBuilder b = new ExrsBuilder();
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> list = parseSubobject(buffer);
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs._case.exrs.Exrs> exrss = Lists.newArrayList();
+ for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject s : list) {
+ final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs._case.exrs.ExrsBuilder b = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs._case.exrs.ExrsBuilder();
b.setAttribute(s.getAttribute());
b.setMandatory(s.isMandatory());
b.setSubobjectType(s.getSubobjectType());
exrss.add(b.build());
}
- builder.setSubobjectType(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.ExrsBuilder().setExrs(
- exrss).build());
+ builder.setSubobjectType(new ExrsCaseBuilder().setExrs(new ExrsBuilder().setExrs(exrss).build()).build());
return builder.build();
}
@Override
- public byte[] serializeSubobject(final Subobjects subobject) {
- if (!(subobject.getSubobjectType() instanceof Exrs)) {
+ public byte[] serializeSubobject(final Subobject subobject) {
+ if (!(subobject.getSubobjectType() instanceof ExrsCase)) {
throw new IllegalArgumentException("Unknown subobject instance. Passed " + subobject.getSubobjectType().getClass()
+ ". Needed Exrs.");
}
- final Exrs e = (Exrs) subobject.getSubobjectType();
- final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects> list = Lists.newArrayList();
- for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs.Exrs ex : e.getExrs()) {
- final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.SubobjectsBuilder b = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.SubobjectsBuilder();
+ final Exrs e = ((ExrsCase) subobject.getSubobjectType()).getExrs();
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> list = new ArrayList<>();
+ for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.explicit.route.subobjects.subobject.type.exrs._case.exrs.Exrs ex : e.getExrs()) {
+ final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.SubobjectBuilder b = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.SubobjectBuilder();
b.setAttribute(ex.getAttribute());
b.setMandatory(ex.isMandatory());
b.setSubobjectType(ex.getSubobjectType());
list.add(b.build());
}
- return serializeSubobject(list);
+ return EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), serializeSubobject(list));
}
- private List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects> parseSubobjects(
- final byte[] bytes) throws PCEPDeserializerException {
- if (bytes == null) {
- throw new IllegalArgumentException("Byte array is mandatory.");
- }
-
- int type;
-
- byte[] soContentsBytes;
- int length;
- int offset = 0;
-
- final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects> subs = Lists.newArrayList();
-
- while (offset < bytes.length) {
-
- length = ByteArray.bytesToInt(ByteArray.subByte(bytes, offset + LENGTH_F_OFFSET, SUB_LENGTH_F_LENGTH));
-
- final boolean mandatory = ((bytes[offset + TYPE_FLAG_F_OFFSET] & (1 << 7)) != 0) ? true : false;
- type = (bytes[offset + TYPE_FLAG_F_OFFSET] & 0xff) & ~(1 << 7);
- if (length > bytes.length - offset) {
+ private List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> parseSubobject(
+ final ByteBuf buffer) throws PCEPDeserializerException {
+ Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> subs = new ArrayList<>();
+ while (buffer.isReadable()) {
+ final boolean mandatory = ((buffer.getByte(buffer.readerIndex()) & (1 << 7)) != 0) ? true : false;
+ int type = (buffer.readByte() & 0xff) & ~(1 << 7);
+ int length = UnsignedBytes.toInt(buffer.readByte()) - HEADER_LENGTH;
+ if (length > buffer.readableBytes()) {
throw new PCEPDeserializerException("Wrong length specified. Passed: " + length + "; Expected: <= "
- + (bytes.length - offset));
+ + buffer.readableBytes());
}
-
- soContentsBytes = new byte[length - SO_CONTENTS_OFFSET];
- System.arraycopy(bytes, offset + SO_CONTENTS_OFFSET, soContentsBytes, 0, length - SO_CONTENTS_OFFSET);
-
- final XROSubobjectParser parser = this.registry.getSubobjectParser(type);
-
- subs.add(parser.parseSubobject(soContentsBytes, mandatory));
-
- offset += length;
+ //FIXME: switch to ByteBuf
+ subs.add(this.registry.parseSubobject(type, ByteArray.readBytes(buffer, length), mandatory));
}
return subs;
}
private byte[] serializeSubobject(
- final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects> subobjects) {
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> subobjects) {
final List<byte[]> result = Lists.newArrayList();
int finalLength = 0;
- for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobjects subobject : subobjects) {
-
- final XROSubobjectSerializer serializer = this.registry.getSubobjectSerializer(subobject.getSubobjectType());
-
- final byte[] valueBytes = serializer.serializeSubobject(subobject);
-
- final byte[] bytes = new byte[SUB_HEADER_LENGTH + valueBytes.length];
-
- final byte typeBytes = (byte) (UnsignedBytes.checkedCast(serializer.getType()) | (subobject.isMandatory() ? 1 << 7 : 0));
-
- final byte lengthBytes = UnsignedBytes.checkedCast(valueBytes.length);
-
- bytes[0] = typeBytes;
- bytes[1] = lengthBytes;
- System.arraycopy(valueBytes, 0, bytes, SUB_HEADER_LENGTH, valueBytes.length);
+ for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject subobject : subobjects) {
+ final byte[] bytes = this.registry.serializeSubobject(subobject);
finalLength += bytes.length;
result.add(bytes);
}
}
return resultBytes;
}
-
- @Override
- public int getType() {
- return TYPE;
- }
}
Code Review / bgpcep.git / blobdiff