import io.netty.buffer.ByteBuf;
-import org.opendaylight.protocol.pcep.PCEPDeserializerException;
+import java.util.List;
+
import org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
import org.opendaylight.protocol.pcep.spi.ObjectHandlerRegistry;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.spi.PCEPErrors;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Pcreq;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.PcreqBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PcrepMessage;
+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.bandwidth.object.Bandwidth;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.BandwidthBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.classtype.object.ClassType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.object.EndpointsObj;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.Xro;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.gc.object.Gc;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.load.balancing.object.LoadBalancing;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
+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.of.object.Of;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.path.key.object.PathKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.PcreqMessage;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.PcreqMessageBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.Requests;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.RequestsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.Svec;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.SvecBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.PathKeyExpansionBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2p;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2pBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRoute;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRouteBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.Rro;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
+
+import com.google.common.collect.Lists;
/**
- * Parser for {@link PcrepMessage}
+ * Parser for {@link Pcreq}
*/
-// FIXME finish
public class PCEPRequestMessageParser extends AbstractMessageParser {
public static final int TYPE = 3;
@Override
public void serializeMessage(final Message message, final ByteBuf buffer) {
- if (!(message instanceof PcrepMessage)) {
+ if (!(message instanceof Pcreq)) {
throw new IllegalArgumentException("Wrong instance of PCEPMessage. Passed instance of " + message.getClass()
+ ". Needed PcrepMessage.");
}
+ final PcreqMessage msg = ((Pcreq) message).getPcreqMessage();
+ if (msg.getRequests() == null || msg.getRequests().isEmpty()) {
+ throw new IllegalArgumentException("Requests cannot be null or empty.");
+ }
+ for (final Requests req : msg.getRequests()) {
+ buffer.writeBytes(serializeObject(req.getRp()));
+ if (req.getPathKeyExpansion() != null) {
+ buffer.writeBytes(serializeObject(req.getPathKeyExpansion().getPathKey()));
+ }
+ if (req.getSegmentComputation() != null) {
+ final SegmentComputation sc = req.getSegmentComputation();
+ if (sc.getP2p() != null) {
+ serializeP2P(buffer, sc.getP2p());
+ }
+ }
+ }
+ if (msg.getSvec() != null) {
+ for (final Svec s : msg.getSvec()) {
+ buffer.writeBytes(serializeObject(s.getSvec()));
+ if (s.getOf() != null) {
+ buffer.writeBytes(serializeObject(s.getOf()));
+ }
+ if (s.getGc() != null) {
+ buffer.writeBytes(serializeObject(s.getGc()));
+ }
+ if (s.getXro() != null) {
+ buffer.writeBytes(serializeObject(s.getXro()));
+ }
+ if (s.getMetric() != null) {
+ for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.svec.Metric m : s.getMetric()) {
+ buffer.writeBytes(serializeObject(m.getMetric()));
+ }
+ }
+ }
+ }
+ }
+
+ protected void serializeP2P(final ByteBuf buffer, final P2p p2p) {
+ if (p2p.getEndpointsObj() != null) {
+ buffer.writeBytes(serializeObject(p2p.getEndpointsObj()));
+ }
+ if (p2p.getReportedRoute() != null) {
+ final ReportedRoute rr = p2p.getReportedRoute();
+ if (rr.getRro() != null) {
+ buffer.writeBytes(serializeObject(rr.getRro()));
+ }
+ if (rr.getBandwidth() != null) {
+ buffer.writeBytes(serializeObject(rr.getBandwidth()));
+ }
+ }
+ if (p2p.getLoadBalancing() != null) {
+ buffer.writeBytes(serializeObject(p2p.getLoadBalancing()));
+ }
+ if (p2p.getLspa() != null) {
+ buffer.writeBytes(serializeObject(p2p.getLspa()));
+ }
+ if (p2p.getBandwidth() != null) {
+ buffer.writeBytes(serializeObject(p2p.getBandwidth()));
+ }
+ if (p2p.getMetrics() != null) {
+ for (final Metrics m : p2p.getMetrics()) {
+ buffer.writeBytes(serializeObject(m.getMetric()));
+ }
+ }
+ if (p2p.getIro() != null) {
+ buffer.writeBytes(serializeObject(p2p.getIro()));
+ }
+ if (p2p.getRro() != null) {
+ buffer.writeBytes(serializeObject(p2p.getRro()));
+ }
+ if (p2p.getXro() != null) {
+ buffer.writeBytes(serializeObject(p2p.getXro()));
+ }
+ if (p2p.getOf() != null) {
+ buffer.writeBytes(serializeObject(p2p.getOf()));
+ }
+ if (p2p.getClassType() != null) {
+ buffer.writeBytes(serializeObject(p2p.getClassType()));
+ }
}
@Override
- public PcrepMessage parseMessage(final byte[] buffer) throws PCEPDeserializerException {
- // TODO Auto-generated method stub
- return null;
+ protected Message validate(
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object> objects,
+ final List<Message> errors) throws PCEPDeserializerException {
+ if (objects == null) {
+ throw new IllegalArgumentException("Passed list can't be null.");
+ }
+
+ final List<Requests> requests = Lists.newArrayList();
+ final List<Svec> svecList = Lists.newArrayList();
+ while (!objects.isEmpty()) {
+ final RequestsBuilder rBuilder = new RequestsBuilder();
+ Rp rpObj = null;
+ if (objects.get(0) instanceof Rp) {
+ rpObj = (Rp) objects.get(0);
+ objects.remove(0);
+ if (!rpObj.isProcessingRule()) {
+ errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET));
+ } else {
+ rBuilder.setRp(rpObj);
+ }
+ } else {
+ // if RP obj is missing return error only
+ errors.add(createErrorMsg(PCEPErrors.RP_MISSING));
+ return null;
+ }
+
+ // expansion
+ if (rpObj.isPathKey()) {
+ if (objects.get(0) instanceof PathKey) {
+ rBuilder.setPathKeyExpansion(new PathKeyExpansionBuilder().setPathKey((PathKey) objects.get(0)).build());
+ }
+ continue;
+ }
+
+ final P2pBuilder p2pBuilder = new P2pBuilder();
+
+ if (objects.get(0) instanceof EndpointsObj) {
+ final EndpointsObj ep = (EndpointsObj) objects.get(0);
+ objects.remove(0);
+ if (!ep.isProcessingRule()) {
+ errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, rpObj));
+ } else {
+ p2pBuilder.setEndpointsObj(ep);
+ }
+ } else {
+ errors.add(createErrorMsg(PCEPErrors.END_POINTS_MISSING, rpObj));
+ return null;
+ }
+ // p2p
+ if (!rpObj.isP2mp()) {
+ final SegmentComputation segm = getSegmentComputation(p2pBuilder, objects, errors, rpObj);
+ if (segm != null) {
+ rBuilder.setSegmentComputation(segm);
+ }
+ }
+ while (!objects.isEmpty()) {
+ final SvecBuilder sBuilder = new SvecBuilder();
+ final Svec svecComp = getValidSvec(sBuilder, objects);
+ if (svecComp == null) {
+ break;
+ }
+ svecList.add(svecComp);
+ }
+ requests.add(rBuilder.build());
+ }
+
+ final PcreqMessageBuilder mBuilder = new PcreqMessageBuilder();
+ mBuilder.setRequests(requests);
+ if (!svecList.isEmpty()) {
+ mBuilder.setSvec(svecList);
+ }
+ return new PcreqBuilder().setPcreqMessage(mBuilder.build()).build();
+ }
+
+ protected SegmentComputation getSegmentComputation(final P2pBuilder builder, final List<Object> objects, final List<Message> errors,
+ final Rp rp) {
+ final List<Metrics> metrics = Lists.newArrayList();
+
+ State state = State.Init;
+ while (!objects.isEmpty() && state != State.End) {
+ Object obj = objects.get(0);
+
+ switch (state) {
+ case Init:
+ state = State.ReportedIn;
+ if (obj instanceof Rro) {
+ final ReportedRouteBuilder rrBuilder = new ReportedRouteBuilder();
+ rrBuilder.setRro((Rro) obj);
+ objects.remove(0);
+ obj = objects.get(0);
+ if (obj instanceof Bandwidth) {
+ rrBuilder.setBandwidth((Bandwidth) obj);
+ }
+ break;
+ }
+ case ReportedIn:
+ state = State.LoadBIn;
+ if (obj instanceof LoadBalancing) {
+ builder.setLoadBalancing((LoadBalancing) obj);
+ break;
+ }
+ case LoadBIn:
+ state = State.LspaIn;
+ if (obj instanceof Lspa) {
+ builder.setLspa((Lspa) obj);
+ break;
+ }
+ case LspaIn:
+ state = State.BandwidthIn;
+ if (obj instanceof Bandwidth) {
+ builder.setBandwidth((Bandwidth) obj);
+ break;
+ }
+ case BandwidthIn:
+ state = State.MetricIn;
+ if (obj instanceof Metric) {
+ metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
+ state = State.BandwidthIn;
+ break;
+ }
+ case MetricIn:
+ state = State.IroIn;
+ if (obj instanceof Iro) {
+ builder.setIro((Iro) obj);
+ break;
+ }
+ case IroIn:
+ state = State.RroIn;
+ if (obj instanceof Rro) {
+ builder.setRro((Rro) obj);
+ break;
+ }
+ case RroIn:
+ state = State.XroIn;
+ if (obj instanceof Xro) {
+ builder.setXro((Xro) obj);
+ break;
+ }
+ case XroIn:
+ state = State.OfIn;
+ if (obj instanceof Of) {
+ builder.setOf((Of) obj);
+ break;
+ }
+ case OfIn:
+ state = State.CtIn;
+ if (obj instanceof ClassType) {
+ final ClassType classType = (ClassType) obj;
+ if (!classType.isProcessingRule()) {
+ errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, rp));
+ } else {
+ builder.setClassType(classType);
+ }
+ break;
+ }
+ case CtIn:
+ state = State.End;
+ break;
+ case End:
+ break;
+ }
+ if (!state.equals(State.End)) {
+ objects.remove(0);
+ }
+ }
+ if (!metrics.isEmpty()) {
+ builder.setMetrics(metrics);
+ }
+
+ if (rp.isReoptimization()
+ && builder.getBandwidth() != null
+ && builder.getReportedRoute().getBandwidth().getBandwidth() != new BandwidthBuilder().setBandwidth(
+ new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth(new byte[] { 0 })).build()
+ && builder.getReportedRoute().getRro() == null) {
+ errors.add(createErrorMsg(PCEPErrors.RRO_MISSING, rp));
+ return null;
+ }
+ return new SegmentComputationBuilder().setP2p(builder.build()).build();
+ }
+
+ private enum State {
+ Init, ReportedIn, LoadBIn, LspaIn, BandwidthIn, MetricIn, IroIn, RroIn, XroIn, OfIn, CtIn, End
+ }
+
+ private Svec getValidSvec(final SvecBuilder builder, final List<Object> objects) {
+ if (objects == null || objects.isEmpty()) {
+ throw new IllegalArgumentException("List cannot be null or empty.");
+ }
+
+ if (objects.get(0) instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.svec.object.Svec) {
+ builder.setSvec((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.svec.object.Svec) objects.get(0));
+ objects.remove(0);
+ } else {
+ return null;
+ }
+
+ final List<Metrics> metrics = Lists.newArrayList();
+
+ Object obj = null;
+ SvecState state = SvecState.Init;
+ while (!objects.isEmpty() && !state.equals(SvecState.End)) {
+ obj = objects.get(0);
+
+ switch (state) {
+ case Init:
+ state = SvecState.OfIn;
+ if (obj instanceof Of) {
+ builder.setOf((Of) obj);
+ break;
+ }
+ case OfIn:
+ state = SvecState.GcIn;
+ if (obj instanceof Gc) {
+ builder.setGc((Gc) obj);
+ break;
+ }
+ case GcIn:
+ state = SvecState.XroIn;
+ if (obj instanceof Xro) {
+ builder.setXro((Xro) obj);
+ break;
+ }
+ case XroIn:
+ state = SvecState.MetricIn;
+ if (obj instanceof Metric) {
+ metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
+ state = SvecState.XroIn;
+ break;
+ }
+ case MetricIn:
+ state = SvecState.End;
+ break;
+ case End:
+ break;
+ }
+ if (!state.equals(SvecState.End)) {
+ objects.remove(0);
+ }
+ }
+ return builder.build();
+ }
+
+ private enum SvecState {
+ Init, OfIn, GcIn, XroIn, MetricIn, End
}
@Override
Code Review / bgpcep.git / blobdiff