package org.opendaylight.transportpce.pce;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.transportpce.pce.PceResult.LocalCause;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.PathComputationRequestInput;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.service.path.rpc.result.PathDescriptionBuilder;
+import org.opendaylight.transportpce.common.ResponseCodes;
+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.GnpyResult;
+import org.opendaylight.transportpce.pce.gnpy.GnpyUtilitiesImpl;
+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.http.org.opendaylight.transportpce.pce.rev190624.PathComputationRequestInput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.PathComputationRequestInputBuilder;
+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.yang.gen.v1.http.org.transportpce.b.c._interface.routing.constraints.rev171017.routing.constraints.sp.HardConstraints;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
* <code>false</code> cancelresourcereserve .
*/
private PathDescriptionBuilder pathDescription;
-
private PathComputationRequestInput input;
- private DataBroker dataBroker;
-
+ private NetworkTransactionService networkTransaction;
private PceConstraints pceHardConstraints = new PceConstraints();
private PceConstraints pceSoftConstraints = new PceConstraints();
+ private GnpyResult gnpyAtoZ;
+ private GnpyResult gnpyZtoA;
+ private Boolean success;
+ private String message;
+ private String responseCode;
public PceSendingPceRPCs() {
setPathDescription(null);
-
this.input = null;
- this.dataBroker = null;
+ this.networkTransaction = null;
}
- public PceSendingPceRPCs(PathComputationRequestInput input, DataBroker dataBroker) {
+ public PceSendingPceRPCs(PathComputationRequestInput input,
+ NetworkTransactionService networkTransaction) {
setPathDescription(null);
// TODO compliance check to check that input is not empty
this.input = input;
- this.dataBroker = dataBroker;
+ this.networkTransaction = networkTransaction;
}
public void cancelResourceReserve() {
+ success = false;
LOG.info("Wait for 10s til beginning the PCE cancelResourceReserve request");
try {
- Thread.sleep(10000); // sleep for 10s
+ // sleep for 10s
+ Thread.sleep(10000);
} catch (InterruptedException e) {
LOG.error(e.toString());
}
+ success = true;
LOG.info("cancelResourceReserve ...");
}
- public void pathComputation() {
- LOG.info("PathComputation ...");
-
- PceConstraintsCalc constraints = new PceConstraintsCalc(input, dataBroker);
- pceHardConstraints = constraints.getPceHardConstraints();
- pceSoftConstraints = constraints.getPceSoftConstraints();
+ public void pathComputationWithConstraints(PceConstraints hardConstraints, PceConstraints softConstraints)
+ throws Exception {
-
- LOG.info("nwAnalizer ...");
- PceCalculation nwAnalizer = new PceCalculation(input, dataBroker,
- pceHardConstraints, pceSoftConstraints, rc);
+ PceCalculation nwAnalizer =
+ new PceCalculation(input, networkTransaction, hardConstraints, softConstraints, rc);
nwAnalizer.calcPath();
rc = nwAnalizer.getReturnStructure();
if (!rc.getStatus()) {
- LOG.error("In pathComputation nwAnalizer: result = {}", rc.toString());
+ LOG.error("In pathComputationWithConstraints, nwAnalizer: result = {}", rc.toString());
return;
}
-
LOG.info("PceGraph ...");
- LOG.warn("PathComputation: aPceNode '{}' - zPceNode '{}'", nwAnalizer.getaPceNode(), nwAnalizer.getzPceNode());
- PceGraph graph = new PceGraph(
- nwAnalizer.getaPceNode(),
- nwAnalizer.getzPceNode(),
- nwAnalizer.getAllPceNodes(),
- pceHardConstraints, pceSoftConstraints, rc);
+ PceGraph graph = new PceGraph(nwAnalizer.getaendPceNode(),
+ nwAnalizer.getzendPceNode(), nwAnalizer.getAllPceNodes(),
+ hardConstraints, softConstraints, rc);
graph.calcPath();
rc = graph.getReturnStructure();
if (!rc.getStatus()) {
-
LOG.warn("In pathComputation : Graph return without Path ");
-
// TODO fix. This is quick workaround for algorithm problem
- if ((rc.getLocalCause() == LocalCause.TOO_HIGH_LATENCY)
- && (pceHardConstraints.getPceMetrics() == PceMetric.HopCount)
- && (pceHardConstraints.getMaxLatency() != -1)) {
-
- pceHardConstraints.setPceMetrics(PceMetric.PropagationDelay);
+ if ((rc.getLocalCause() == PceResult.LocalCause.TOO_HIGH_LATENCY)
+ && (hardConstraints.getPceMetrics() == PceMetric.HopCount)
+ && (hardConstraints.getMaxLatency() != -1)) {
+ hardConstraints.setPceMetrics(PceMetric.PropagationDelay);
graph = patchRerunGraph(graph);
}
-
if (!rc.getStatus()) {
- LOG.error("In pathComputation graph.calcPath: result = {}", rc.toString());
+ LOG.error("In pathComputationWithConstraints, graph.calcPath: result = {}", rc.toString());
return;
}
}
-
LOG.info("PcePathDescription ...");
- PcePathDescription description = new PcePathDescription(
- graph.getPathAtoZ(),
- nwAnalizer.getAllPceLinks(), rc);
+ 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());
+ LOG.error("In pathComputationWithConstraints, description: result = {}", rc.toString());
return;
}
+ }
- LOG.info("setPathDescription ...");
- AToZDirection atoz = rc.getAtoZDirection();
- ZToADirection ztoa = rc.getZtoADirection();
- if ((atoz == null) || (atoz.getAToZ() == null)) {
- rc.setRC("400");
- LOG.error("In pathComputation empty atoz path after description: result = {}", rc.toString());
+ 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();
+
+ if (!rc.getStatus()) {
+ LOG.error("In pathComputation, pathComputationWithConstraints: result = {}", rc.toString());
return;
}
- if ((ztoa == null) || (ztoa.getZToA() == null)) {
- rc.setRC("400");
- LOG.error("In pathComputation empty ztoa path after description: result = {}", rc.toString());
- return;
+
+ // Verify the path with GNPy
+ AToZDirection atoz = rc.getAtoZDirection();
+ ZToADirection ztoa = rc.getZtoADirection();
+ ConnectToGnpyServer connectToGnpy = new ConnectToGnpyServer();
+
+ // Verify that the GNPy server exists
+ if (connectToGnpy.isGnpyURLExist()) {
+ LOG.info("Gnpy instance is connected T-PCE");
+ GnpyUtilitiesImpl gnpy = new GnpyUtilitiesImpl(networkTransaction, input);
+ if (gnpy.verifyComputationByGnpy(atoz, ztoa, pceHardConstraints)) {
+ LOG.info("The path is feasible according to Gnpy");
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ }
+ else {
+ LOG.info("The path is not feasible according to Gnpy");
+ HardConstraints gnpyPathAsHC = null;
+ gnpyPathAsHC = gnpy.askNewPathFromGnpy(atoz, ztoa, gnpyPathAsHC, pceHardConstraints);
+ if (gnpyPathAsHC != null) {
+ LOG.info("GNPy succeed to find another path");
+ // Compute the path
+ PathComputationRequestInput inputFromGnpy = new PathComputationRequestInputBuilder()
+ .setServiceName(input.getServiceName())
+ .setHardConstraints(gnpyPathAsHC)
+ .setSoftConstraints(input.getSoftConstraints())
+ .setPceMetric(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);
+ atoz = rc.getAtoZDirection();
+ ztoa = rc.getZtoADirection();
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ if (gnpy.verifyComputationByGnpy(atoz, ztoa, pceHardConstraints)) {
+ LOG.info("In pathComputation: the new path computed by GNPy is valid");
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ this.success = true;
+ this.message = "Path is calculated by GNPy ";
+ this.responseCode = ResponseCodes.RESPONSE_OK;
+ } else {
+ LOG.info("In pathComputation: the new path computed by GNPy is not valid");
+ this.success = false;
+ this.message = "No path available ";
+ this.responseCode = ResponseCodes.RESPONSE_FAILED;
+ }
+ } else {
+ LOG.info("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();
+ } else {
+ LOG.info("in PCESendingPceRPCs: Cannot connect to GNPy!!");
+ setPathDescription(new PathDescriptionBuilder().setAToZDirection(atoz).setZToADirection(ztoa));
+ LOG.info("In pathComputation Graph is Found");
}
- setPathDescription(new PathDescriptionBuilder()
- .setAToZDirection(atoz)
- .setZToADirection(ztoa));
- LOG.info("In pathComputation Graph is Found");
}
private PceGraph patchRerunGraph(PceGraph graph) {
graph.setConstrains(pceHardConstraints, pceSoftConstraints);
graph.calcPath();
return graph;
-
}
public PathDescriptionBuilder getPathDescription() {
}
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() {
+ return gnpyAtoZ;
+ }
+
+ public GnpyResult getGnpyZtoA() {
+ return gnpyZtoA;
+ }
}
Code Review / transportpce.git / blobdiff