+++ /dev/null
-/*
- * Copyright (c) 2013 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.impl.message;
-
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.Unpooled;
-import java.util.ArrayList;
-import java.util.List;
-import org.opendaylight.protocol.pcep.impl.spi.Util;
-import org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
-import org.opendaylight.protocol.pcep.spi.MessageUtil;
-import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
-import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
-import org.opendaylight.protocol.pcep.spi.PCEPErrors;
-import org.opendaylight.protocol.pcep.spi.VendorInformationObjectRegistry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Pcrep;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.PcrepBuilder;
-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.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.explicit.route.object.Ero;
-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.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.monitoring.metrics.MetricPce;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.monitoring.object.Monitoring;
-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.pcc.id.req.object.PccIdReq;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pce.id.object.PceId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.PcrepMessageBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.Replies;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.RepliesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.Result;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.FailureCase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.FailureCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.SuccessCase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.SuccessCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.failure._case.NoPath;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.success._case.SuccessBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.success._case.success.Paths;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.success._case.success.PathsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.objects.VendorInformationObject;
-
-/**
- * Parser for {@link Pcrep}
- */
-public class PCEPReplyMessageParser extends AbstractMessageParser {
-
- public static final int TYPE = 4;
-
- public PCEPReplyMessageParser(final ObjectRegistry registry, final VendorInformationObjectRegistry viRegistry) {
- super(registry, viRegistry);
- }
-
- @Override
- public void serializeMessage(final Message message, final ByteBuf out) {
- Preconditions.checkArgument(message instanceof Pcrep, "Wrong instance of Message. Passed instance of %s. Need Pcrep.", message.getClass());
- final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.PcrepMessage repMsg = ((Pcrep) message).getPcrepMessage();
- Preconditions.checkArgument(repMsg.getReplies() != null && !repMsg.getReplies().isEmpty(), "Replies cannot be null or empty.");
- final ByteBuf buffer = Unpooled.buffer();
- for (final Replies reply : repMsg.getReplies()) {
- Preconditions.checkArgument(reply.getRp() != null, "Reply must contain RP object.");
- serializeReply(reply, buffer);
- }
- MessageUtil.formatMessage(TYPE, buffer, out);
- }
-
- protected void serializeReply(final Replies reply, final ByteBuf buffer) {
- serializeObject(reply.getRp(), buffer);
- serializeMonitoring(reply, buffer);
- serializeVendorInformationObjects(reply.getVendorInformationObject(), buffer);
- if (reply.getResult() == null) {
- return;
- }
- if (reply.getResult() instanceof FailureCase) {
- final FailureCase f = ((FailureCase) reply.getResult());
- serializeFailure(f, buffer);
- return;
- }
- final SuccessCase s = (SuccessCase) reply.getResult();
- serializeSuccess(s, buffer);
- serializeMonitoringMetrics(reply, buffer);
- }
-
- private void serializeFailure(final FailureCase f, final ByteBuf buffer) {
- if (f == null) {
- return;
- }
- serializeObject(f.getNoPath(), buffer);
- serializeObject(f.getLspa(), buffer);
- serializeObject(f.getBandwidth(), buffer);
- if (f.getMetrics() != null) {
- for (final Metrics m : f.getMetrics()) {
- serializeObject(m.getMetric(), buffer);
- }
- }
- serializeObject(f.getIro(), buffer);
- }
-
- private void serializeSuccess(final SuccessCase s, final ByteBuf buffer) {
- if (s == null || s.getSuccess() == null) {
- return;
- }
- for (final Paths p : s.getSuccess().getPaths()) {
- serializeObject(p.getEro(), buffer);
- serializeObject(p.getLspa(), buffer);
- serializeObject(p.getOf(), buffer);
- serializeObject(p.getBandwidth(), buffer);
- if (p.getMetrics() != null) {
- for (final Metrics m : p.getMetrics()) {
- serializeObject(m.getMetric(), buffer);
- }
- }
- serializeObject(p.getIro(), buffer);
- }
- serializeVendorInformationObjects(s.getSuccess().getVendorInformationObject(), buffer);
- }
-
- private void serializeMonitoring(final Replies reply, final ByteBuf buffer) {
- serializeObject(reply.getMonitoring(), buffer);
- serializeObject(reply.getPccIdReq(), buffer);
- }
-
- private void serializeMonitoringMetrics(final Replies reply, final ByteBuf buffer) {
- if (reply.getMetricPce() != null) {
- for (final MetricPce metricPce : reply.getMetricPce()) {
- serializeMetricPce(metricPce, buffer);
- }
- }
- }
-
- protected void serializeMetricPce(final MetricPce metricPce, final ByteBuf buffer) {
- Preconditions.checkArgument(metricPce.getPceId() != null, "PCE-ID must be present.");
- serializeObject(metricPce.getPceId(), buffer);
- serializeObject(metricPce.getProcTime(), buffer);
- serializeObject(metricPce.getOverload(), buffer);
- }
-
- @Override
- protected Pcrep validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
- Preconditions.checkArgument(objects != null, "Passed list can't be null.");
- if (objects.isEmpty()) {
- throw new PCEPDeserializerException("Pcrep message cannot be empty.");
- }
- final List<Replies> replies = new ArrayList<>();
- while (!objects.isEmpty()) {
- final Replies r = this.getValidReply(objects, errors);
- if (r != null) {
- replies.add(r);
- }
- }
- if (!objects.isEmpty()) {
- throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
- }
- return new PcrepBuilder().setPcrepMessage(new PcrepMessageBuilder().setReplies(replies).build()).build();
- }
-
- protected Replies getValidReply(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
- if (!(objects.get(0) instanceof Rp)) {
- errors.add(createErrorMsg(PCEPErrors.RP_MISSING, Optional.<Rp>absent()));
- return null;
- }
- final Rp rp = (Rp) objects.get(0);
- objects.remove(0);
- final RepliesBuilder repliesBuilder = new RepliesBuilder();
- if (!objects.isEmpty() && objects.get(0) instanceof Monitoring) {
- repliesBuilder.setMonitoring((Monitoring) objects.get(0));
- objects.remove(0);
- }
- if (!objects.isEmpty() && objects.get(0) instanceof PccIdReq) {
- repliesBuilder.setPccIdReq((PccIdReq) objects.get(0));
- objects.remove(0);
- }
- final List<VendorInformationObject> vendorInfo = addVendorInformationObjects(objects);
- Result res = null;
- if (!objects.isEmpty()) {
- if (objects.get(0) instanceof NoPath) {
- res = handleNoPath((NoPath) objects.get(0), objects);
- } else if (objects.get(0) instanceof Ero) {
- res = handleEro((Ero) objects.get(0), objects);
- }
- }
- final List<MetricPce> metricPceList = new ArrayList<>();
- if (!objects.isEmpty() && objects.get(0) instanceof PceId) {
- while (!objects.isEmpty()) {
- metricPceList.add(Util.validateMonitoringMetrics(objects));
- }
- }
- if (!vendorInfo.isEmpty()) {
- repliesBuilder.setVendorInformationObject(vendorInfo);
- }
- if (!metricPceList.isEmpty()) {
- repliesBuilder.setMetricPce(metricPceList);
- }
- return repliesBuilder.setRp(rp).setResult(res).build();
- }
-
- private Result handleNoPath(final NoPath noPath, final List<Object> objects) {
- objects.remove(0);
- final FailureCaseBuilder builder = new FailureCaseBuilder();
- builder.setNoPath(noPath);
- while (!objects.isEmpty() && !(objects.get(0) instanceof PceId)) {
- this.parseAttributes(builder, objects);
- }
- return builder.build();
- }
-
- private Result handleEro(final Ero ero, final List<Object> objects) {
- objects.remove(0);
- final SuccessBuilder builder = new SuccessBuilder();
- final List<Paths> paths = new ArrayList<>();
- final PathsBuilder pBuilder = new PathsBuilder();
- pBuilder.setEro(ero);
- while (!objects.isEmpty() && !(objects.get(0) instanceof PceId)) {
- final List<VendorInformationObject> vendorInfoObjects = addVendorInformationObjects(objects);
- if (!vendorInfoObjects.isEmpty()) {
- builder.setVendorInformationObject(vendorInfoObjects);
- }
- this.parsePath(pBuilder, objects);
- paths.add(pBuilder.build());
- }
- builder.setPaths(paths);
- return new SuccessCaseBuilder().setSuccess(builder.build()).build();
- }
-
- protected void parseAttributes(final FailureCaseBuilder builder, final List<Object> objects) {
- final List<Metrics> pathMetrics = new ArrayList<>();
-
- Object obj;
- State state = State.INIT;
- while (!objects.isEmpty() && !state.equals(State.END)) {
- obj = objects.get(0);
- state = insertObject(state, obj, builder, pathMetrics);
- if (!state.equals(State.END)) {
- objects.remove(0);
- }
- }
- if (!pathMetrics.isEmpty()) {
- builder.setMetrics(pathMetrics);
- }
- }
-
- private State insertObject(final State state, final Object obj, final FailureCaseBuilder builder, final List<Metrics> pathMetrics) {
- switch (state) {
- case INIT:
- if (obj instanceof Lspa) {
- builder.setLspa((Lspa) obj);
- return State.LSPA_IN;
- }
- case LSPA_IN:
- if (obj instanceof Bandwidth) {
- builder.setBandwidth((Bandwidth) obj);
- return State.BANDWIDTH_IN;
- }
- case BANDWIDTH_IN:
- if (obj instanceof Metric) {
- pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
- return State.BANDWIDTH_IN;
- }
- case METRIC_IN:
- if (obj instanceof Iro) {
- builder.setIro((Iro) obj);
- return State.IRO_IN;
- }
- case IRO_IN:
- case END:
- return State.END;
- default:
- return state;
- }
- }
-
- protected void parsePath(final PathsBuilder builder, final List<Object> objects) {
- final List<Metrics> pathMetrics = new ArrayList<>();
-
- Object obj;
- State state = State.INIT;
- while (!objects.isEmpty() && !state.equals(State.END)) {
- obj = objects.get(0);
- state = insertObject(state, obj, builder, pathMetrics);
- if (!state.equals(State.END)) {
- objects.remove(0);
- }
- }
- if (!pathMetrics.isEmpty()) {
- builder.setMetrics(pathMetrics);
- }
- }
-
- private State insertObject(final State state, final Object obj, final PathsBuilder builder, final List<Metrics> pathMetrics) {
- switch (state) {
- case INIT:
- if (obj instanceof Lspa) {
- builder.setLspa((Lspa) obj);
- return State.LSPA_IN;
- }
- case LSPA_IN:
- if (obj instanceof Of) {
- builder.setOf((Of) obj);
- return State.OF_IN;
- }
- case OF_IN:
- if (obj instanceof Bandwidth) {
- builder.setBandwidth((Bandwidth) obj);
- return State.BANDWIDTH_IN;
- }
- case BANDWIDTH_IN:
- if (obj instanceof Metric) {
- pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
- return State.BANDWIDTH_IN;
- }
- case METRIC_IN:
- if (obj instanceof Iro) {
- builder.setIro((Iro) obj);
- return State.IRO_IN;
- }
- case IRO_IN:
- case END:
- return State.END;
- default:
- return state;
- }
- }
-
- private enum State {
- INIT, LSPA_IN, OF_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, END
- }
-}
Code Review / bgpcep.git / blobdiff