package org.opendaylight.transportpce.pce;
-import java.util.List;
-
+import org.opendaylight.transportpce.common.ResponseCodes;
+import org.opendaylight.transportpce.common.mapping.PortMapping;
import org.opendaylight.transportpce.common.network.NetworkTransactionService;
import org.opendaylight.transportpce.pce.constraints.PceConstraints;
import org.opendaylight.transportpce.pce.constraints.PceConstraintsCalc;
-import org.opendaylight.transportpce.pce.gnpy.ConnectToGnpyServer;
-import org.opendaylight.transportpce.pce.gnpy.ExtractTopoDataStoreImpl;
+import org.opendaylight.transportpce.pce.gnpy.GnpyException;
import org.opendaylight.transportpce.pce.gnpy.GnpyResult;
-import org.opendaylight.transportpce.pce.gnpy.ServiceDataStoreOperationsImpl;
+import org.opendaylight.transportpce.pce.gnpy.GnpyUtilitiesImpl;
+import org.opendaylight.transportpce.pce.gnpy.consumer.GnpyConsumer;
import org.opendaylight.transportpce.pce.graph.PceGraph;
import org.opendaylight.transportpce.pce.networkanalyzer.PceCalculation;
import org.opendaylight.transportpce.pce.networkanalyzer.PceResult;
-import org.opendaylight.yang.gen.v1.gnpy.gnpy.api.rev190103.GnpyApi;
-import org.opendaylight.yang.gen.v1.gnpy.gnpy.api.rev190103.GnpyApiBuilder;
-import org.opendaylight.yang.gen.v1.gnpy.gnpy.api.rev190103.gnpy.api.ServiceFileBuilder;
-import org.opendaylight.yang.gen.v1.gnpy.gnpy.api.rev190103.gnpy.api.TopologyFileBuilder;
-import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev181214.topo.Connections;
-import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev181214.topo.Elements;
-import org.opendaylight.yang.gen.v1.gnpy.path.rev190502.service.PathRequest;
-import org.opendaylight.yang.gen.v1.gnpy.path.rev190502.synchronization.info.Synchronization;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.PathComputationRequestInput;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.service.path.rpc.result.PathDescriptionBuilder;
-import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev171017.path.description.AToZDirection;
-import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev171017.path.description.ZToADirection;
-import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.routing.constraints.rev171017.RoutingConstraintsSp.PceMetric;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220118.PathComputationRequestInput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220118.PathComputationRequestInputBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220118.service.path.rpc.result.PathDescriptionBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.routing.constrains.rev190329.routing.constraints.HardConstraints;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.AToZDirection;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.ZToADirection;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.PceMetric;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
private NetworkTransactionService networkTransaction;
private PceConstraints pceHardConstraints = new PceConstraints();
private PceConstraints pceSoftConstraints = new PceConstraints();
- private Long gnpyRequestId = new Long(0);
private GnpyResult gnpyAtoZ;
private GnpyResult gnpyZtoA;
+ private Boolean success;
+ private String message;
+ private String responseCode;
+ private final GnpyConsumer gnpyConsumer;
+ private PortMapping portMapping;
- public PceSendingPceRPCs() {
+ public PceSendingPceRPCs(GnpyConsumer gnpyConsumer) {
setPathDescription(null);
this.input = null;
this.networkTransaction = null;
- this.gnpyAtoZ = null;
- this.gnpyZtoA = null;
+ this.gnpyConsumer = gnpyConsumer;
}
public PceSendingPceRPCs(PathComputationRequestInput input,
- NetworkTransactionService networkTransaction) {
+ NetworkTransactionService networkTransaction, GnpyConsumer gnpyConsumer, PortMapping portMapping) {
+ this.gnpyConsumer = gnpyConsumer;
setPathDescription(null);
// TODO compliance check to check that input is not empty
this.input = input;
this.networkTransaction = networkTransaction;
+ this.portMapping = portMapping;
}
public void cancelResourceReserve() {
+ success = false;
LOG.info("Wait for 10s til beginning the PCE cancelResourceReserve request");
try {
// sleep for 10s
Thread.sleep(10000);
} catch (InterruptedException e) {
- LOG.error(e.toString());
+ LOG.error("in PCESendingPceRPC: ",e);
}
+ success = true;
LOG.info("cancelResourceReserve ...");
}
- public void pathComputation() throws Exception {
- LOG.info("PathComputation ...");
+ public void pathComputationWithConstraints(PceConstraints hardConstraints, PceConstraints softConstraints) {
- PceConstraintsCalc constraints = new PceConstraintsCalc(input,networkTransaction);
- pceHardConstraints = constraints.getPceHardConstraints();
- pceSoftConstraints = constraints.getPceSoftConstraints();
- LOG.info("nwAnalizer ...");
PceCalculation nwAnalizer =
- new PceCalculation(input,networkTransaction, pceHardConstraints, pceSoftConstraints, rc);
- nwAnalizer.calcPath();
+ new PceCalculation(input, networkTransaction, hardConstraints, softConstraints, rc, portMapping);
+ nwAnalizer.retrievePceNetwork();
rc = nwAnalizer.getReturnStructure();
+ String serviceType = nwAnalizer.getServiceType();
if (!rc.getStatus()) {
- LOG.error("In pathComputation nwAnalizer: result = {}", rc.toString());
+ LOG.error("In pathComputationWithConstraints, nwAnalizer: result = {}", rc);
return;
}
-
LOG.info("PceGraph ...");
- PceGraph graph = new PceGraph(nwAnalizer.getaendPceNode(),
- nwAnalizer.getzendPceNode(), nwAnalizer.getAllPceNodes(),
- pceHardConstraints, pceSoftConstraints, rc);
+ PceGraph graph = new PceGraph(nwAnalizer.getaendPceNode(), nwAnalizer.getzendPceNode(),
+ nwAnalizer.getAllPceNodes(), hardConstraints, softConstraints, rc, serviceType);
graph.calcPath();
rc = graph.getReturnStructure();
if (!rc.getStatus()) {
- LOG.warn("In pathComputation : Graph return without Path ");
+ LOG.warn("In pathComputationWithConstraints : Graph return without Path ");
// TODO fix. This is quick workaround for algorithm problem
if ((rc.getLocalCause() == PceResult.LocalCause.TOO_HIGH_LATENCY)
- && (pceHardConstraints.getPceMetrics() == PceMetric.HopCount)
- && (pceHardConstraints.getMaxLatency() != -1)) {
- pceHardConstraints.setPceMetrics(PceMetric.PropagationDelay);
+ && (hardConstraints.getPceMetrics() == PceMetric.HopCount)
+ && (hardConstraints.getMaxLatency() != -1)) {
+ hardConstraints.setPceMetrics(PceMetric.PropagationDelay);
+ graph = patchRerunGraph(graph);
+ }
+
+ if (rc.getLocalCause() == PceResult.LocalCause.HD_NODE_INCLUDE) {
+ graph.setKpathsToBring(graph.getKpathsToBring() * 10);
graph = patchRerunGraph(graph);
}
if (!rc.getStatus()) {
- LOG.error("In pathComputation graph.calcPath: result = {}", rc.toString());
+ LOG.error("In pathComputationWithConstraints, graph.calcPath: result = {}", rc);
return;
}
}
-
LOG.info("PcePathDescription ...");
PcePathDescription description = new PcePathDescription(graph.getPathAtoZ(), nwAnalizer.getAllPceLinks(), rc);
description.buildDescriptions();
rc = description.getReturnStructure();
if (!rc.getStatus()) {
- LOG.error("In pathComputation description: result = {}", rc.toString());
- return;
+ LOG.error("In pathComputationWithConstraints, description: result = {}", rc);
}
+ }
- LOG.info("setPathDescription ...");
- AToZDirection atoz = rc.getAtoZDirection();
- ZToADirection ztoa = rc.getZtoADirection();
- ConnectToGnpyServer connectToGnpy = new ConnectToGnpyServer();
- if (atoz == null || atoz.getAToZ() == null) {
- rc.setRC("400");
- LOG.error("In pathComputation empty atoz path after description: result = {}", rc.toString());
- return;
- } else {
- // Send the computed path A-to-Z to GNPY tool
- if (connectToGnpy.isGnpyURLExist()) {
- ExtractTopoDataStoreImpl xtrTopo = new ExtractTopoDataStoreImpl(networkTransaction, input, atoz,
- gnpyRequestId);
- gnpyRequestId++;
- List<Elements> elementsList1 = xtrTopo.getElements();
- List<Connections> connectionsList1 = xtrTopo.getConnections();
- List<PathRequest> pathRequestList1 = xtrTopo.getPathRequest();
- List<Synchronization> synchronizationList1 = xtrTopo.getSynchronization();
- String gnpyResponse1 = getGnpyResponse(elementsList1, connectionsList1, pathRequestList1,
- synchronizationList1);
- // Analyze the response
- if (gnpyResponse1 != null) {
- GnpyResult result = new GnpyResult(gnpyResponse1);
- LOG.debug("GNPy result created");
- result.analyzeResult();
- this.gnpyAtoZ = result;
- } else {
- LOG.error("No response from the GNPy server");
- }
- }
+ public void pathComputation() throws Exception {
+
+ PceConstraintsCalc constraints = new PceConstraintsCalc(input, networkTransaction);
+ pceHardConstraints = constraints.getPceHardConstraints();
+ pceSoftConstraints = constraints.getPceSoftConstraints();
+ pathComputationWithConstraints(pceHardConstraints, pceSoftConstraints);
+ this.success = rc.getStatus();
+ this.message = rc.getMessage();
+ this.responseCode = rc.getResponseCode();
+
+ AToZDirection atoz = null;
+ ZToADirection ztoa = null;
+ if (rc.getStatus()) {
+ atoz = rc.getAtoZDirection();
+ ztoa = rc.getZtoADirection();
}
- if (ztoa == null || ztoa.getZToA() == null) {
- rc.setRC("400");
- LOG.error("In pathComputation empty ztoa path after description: result = {}", rc.toString());
- return;
- } else {
- // Send the computed path Z-to-A to GNPY tool
- if (connectToGnpy.isGnpyURLExist()) {
- ExtractTopoDataStoreImpl xtrTopo = new ExtractTopoDataStoreImpl(networkTransaction, input, ztoa,
- gnpyRequestId);
- gnpyRequestId++;
- List<Elements> elementsList2 = xtrTopo.getElements();
- List<Connections> connectionsList2 = xtrTopo.getConnections();
- List<PathRequest> pathRequestList2 = xtrTopo.getPathRequest();
- List<Synchronization> synchronizationList2 = xtrTopo.getSynchronization();
- String gnpyResponse2 = getGnpyResponse(elementsList2, connectionsList2, pathRequestList2,
- synchronizationList2);
- // Analyze the response
- if (gnpyResponse2 != null) {
- GnpyResult result = new GnpyResult(gnpyResponse2);
- LOG.debug("GNPy result created");
- result.analyzeResult();
- this.gnpyZtoA = result;
- } else {
- LOG.info("No response from the GNPy server");
+ //Connect to Gnpy to check path feasibility and recompute another path in case of path non-feasibility
+ try {
+ if (gnpyConsumer.isAvailable()) {
+ GnpyUtilitiesImpl gnpy = new GnpyUtilitiesImpl(networkTransaction, input,
+ gnpyConsumer);
+ if (rc.getStatus() && gnpyToCheckFeasiblity(atoz,ztoa,gnpy)) {
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ return;
}
+ callGnpyToComputeNewPath(gnpy);
+ } else {
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
}
}
+ catch (GnpyException e) {
+ LOG.error("Exception raised by GNPy {}",e.getMessage());
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ }
+ }
+
+ private boolean gnpyToCheckFeasiblity(AToZDirection atoz, ZToADirection ztoa, GnpyUtilitiesImpl gnpy)
+ throws GnpyException {
- setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
- LOG.info("In pathComputation Graph is Found");
+ //Call GNPy for path verification
+ if (gnpy.verifyComputationByGnpy(atoz, ztoa, pceHardConstraints)) {
+ LOG.info("In pceSendingPceRPC: the path is feasible according to Gnpy");
+ gnpyAtoZ = gnpy.getGnpyAtoZ();
+ gnpyZtoA = gnpy.getGnpyZtoA();
+ return true;
+ }
+ return false;
}
- private String getGnpyResponse(List<Elements> elementsList, List<Connections> connectionsList,
- List<PathRequest> pathRequestList, List<Synchronization> synchronizationList) throws Exception {
- GnpyApi gnpyApi = new GnpyApiBuilder()
- .setTopologyFile(
- new TopologyFileBuilder().setElements(elementsList).setConnections(connectionsList).build())
- .setServiceFile(new ServiceFileBuilder().setPathRequest(pathRequestList).build()).build();
- InstanceIdentifier<GnpyApi> idGnpyApi = InstanceIdentifier.builder(GnpyApi.class).build();
- String gnpyJson;
- ServiceDataStoreOperationsImpl sd = new ServiceDataStoreOperationsImpl(networkTransaction);
- gnpyJson = sd.createJsonStringFromDataObject(idGnpyApi, gnpyApi);
- LOG.debug("GNPy Id: {} / json created : {}", idGnpyApi, gnpyJson);
- ConnectToGnpyServer connect = new ConnectToGnpyServer();
- String gnpyJsonModified = gnpyJson.replace("gnpy-eqpt-config:", "")
- .replace("gnpy-path-computation-simplified:", "").replace("gnpy-network-topology:", "");
- String gnpyResponse = connect.gnpyCnx(gnpyJsonModified);
- return gnpyResponse;
+ private void callGnpyToComputeNewPath(GnpyUtilitiesImpl gnpy) throws GnpyException {
+
+ //Call GNPy in the case of non feasibility
+ LOG.info("In pceSendingPceRPC: the path is not feasible according to Gnpy");
+ HardConstraints gnpyPathAsHC = null;
+ gnpyPathAsHC = gnpy.askNewPathFromGnpy(pceHardConstraints);
+ if (gnpyPathAsHC == null) {
+ LOG.info("In pceSendingPceRPC: GNPy failed to find another path");
+ this.success = false;
+ this.message = "No path available by PCE and GNPy ";
+ this.responseCode = ResponseCodes.RESPONSE_FAILED;
+ gnpyAtoZ = gnpy.getGnpyAtoZ();
+ gnpyZtoA = gnpy.getGnpyZtoA();
+ return;
+ }
+
+ LOG.info("In pceSendingPceRPC: GNPy succeed to find another path");
+ // Compute the path
+ PathComputationRequestInput inputFromGnpy = new PathComputationRequestInputBuilder()
+ .setServiceName(input.getServiceName())
+ .setHardConstraints(gnpyPathAsHC)
+ .setSoftConstraints(input.getSoftConstraints())
+ .setPceRoutingMetric(PceMetric.HopCount)
+ .setServiceAEnd(input.getServiceAEnd())
+ .setServiceZEnd(input.getServiceZEnd())
+ .build();
+ PceConstraintsCalc constraintsGnpy = new PceConstraintsCalc(inputFromGnpy, networkTransaction);
+ PceConstraints gnpyHardConstraints = constraintsGnpy.getPceHardConstraints();
+ PceConstraints gnpySoftConstraints = constraintsGnpy.getPceSoftConstraints();
+ pathComputationWithConstraints(gnpyHardConstraints, gnpySoftConstraints);
+ AToZDirection atoz = rc.getAtoZDirection();
+ ZToADirection ztoa = rc.getZtoADirection();
+ if (gnpyToCheckFeasiblity(atoz, ztoa,gnpy)) {
+ LOG.info("In pceSendingPceRPC: the new path computed by GNPy is valid");
+ this.success = true;
+ this.message = "Path is calculated by GNPy";
+ this.responseCode = ResponseCodes.RESPONSE_OK;
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ } else {
+ LOG.info("In pceSendingPceRPC: the new path computed by GNPy is not valid");
+ this.success = false;
+ this.message = "No path available";
+ this.responseCode = ResponseCodes.RESPONSE_FAILED;
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(null).setZToADirection(null));
+ }
}
private PceGraph patchRerunGraph(PceGraph graph) {
}
public Boolean getSuccess() {
- return rc.getStatus();
+ return this.success;
}
public String getMessage() {
- return rc.getMessage();
+ return this.message;
}
public String getResponseCode() {
- return rc.getResponseCode();
+ return this.responseCode;
}
public GnpyResult getGnpyAtoZ() {
Code Review / transportpce.git / blobdiff