/*
* Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.protocol.pcep.parser.object;
import static com.google.common.base.Preconditions.checkArgument;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import java.util.List;
import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
import org.opendaylight.protocol.pcep.spi.ObjectUtil;
import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
import org.opendaylight.protocol.pcep.spi.TlvRegistry;
import org.opendaylight.protocol.pcep.spi.VendorInformationTlvRegistry;
import org.opendaylight.protocol.util.BitArray;
import org.opendaylight.protocol.util.ByteBufWriteUtil;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.ObjectHeader;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.monitoring.object.Monitoring;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.monitoring.object.Monitoring.Flags;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.monitoring.object.MonitoringBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.monitoring.object.monitoring.Tlvs;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.monitoring.object.monitoring.TlvsBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.vendor.information.tlvs.VendorInformationTlv;
import org.opendaylight.yangtools.yang.common.Uint32;
import org.opendaylight.yangtools.yang.common.netty.ByteBufUtils;
/**
* Parser for {@link Monitoring}.
* @see Monitoring Object
*
*/
public class PCEPMonitoringObjectParser extends AbstractObjectWithTlvsParser {
private static final int CLASS = 19;
private static final int TYPE = 1;
private static final int FLAGS_SIZE = 24;
private static final int RESERVED = 1;
private static final int L_FLAG_POS = 23;
private static final int G_FLAG_POS = 22;
private static final int P_FLAG_POS = 21;
private static final int C_FLAG_POS = 20;
private static final int I_FLAG_POS = 19;
public PCEPMonitoringObjectParser(final TlvRegistry tlvReg, final VendorInformationTlvRegistry viTlvReg) {
super(tlvReg, viTlvReg, CLASS, TYPE);
}
@Override
public Object parseObject(final ObjectHeader header, final ByteBuf buffer) throws PCEPDeserializerException {
checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Cannot be null or empty.");
buffer.readBytes(RESERVED);
final BitArray flagBits = BitArray.valueOf(buffer, FLAGS_SIZE);
final Flags flags = new Flags(flagBits.get(G_FLAG_POS), flagBits.get(I_FLAG_POS), flagBits.get(L_FLAG_POS),
flagBits.get(C_FLAG_POS), flagBits.get(P_FLAG_POS));
final Uint32 monitoring = ByteBufUtils.readUint32(buffer);
final TlvsBuilder tbuilder = new TlvsBuilder();
parseTlvs(tbuilder, buffer.slice());
final MonitoringBuilder builder = new MonitoringBuilder()
.setFlags(flags)
.setMonitoringId(monitoring)
.setTlvs(tbuilder.build());
return builder.build();
}
@Override
public void serializeObject(final Object object, final ByteBuf buffer) {
checkArgument(object instanceof Monitoring, "Wrong instance of PCEPObject. Passed %s. Needed MonitoringObject.",
object.getClass());
final Monitoring monitoring = (Monitoring) object;
final ByteBuf body = Unpooled.buffer();
body.writeZero(RESERVED);
final Flags flags = monitoring.getFlags();
final BitArray flagBits = new BitArray(FLAGS_SIZE);
flagBits.set(I_FLAG_POS, flags.isIncomplete());
flagBits.set(C_FLAG_POS, flags.isOverload());
flagBits.set(P_FLAG_POS, flags.isProcessingTime());
flagBits.set(G_FLAG_POS, flags.isGeneral());
flagBits.set(L_FLAG_POS, flags.isLiveness());
flagBits.toByteBuf(body);
ByteBufWriteUtil.writeUnsignedInt(monitoring.getMonitoringId(), body);
serializeTlvs(monitoring.getTlvs(), body);
ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
}
@Override
protected void addVendorInformationTlvs(final TlvsBuilder builder, final List tlvs) {
if (!tlvs.isEmpty()) {
builder.setVendorInformationTlv(tlvs);
}
}
public void serializeTlvs(final Tlvs tlvs, final ByteBuf body) {
if (tlvs == null) {
return;
}
serializeVendorInformationTlvs(tlvs.getVendorInformationTlv(), body);
}
}