Do not use RpcService in TPCE pce module
[transportpce.git] / pce / src / main / java / org / opendaylight / transportpce / pce / service / PathComputationServiceImpl.java
index e93ea094ba9625ecfe8b0054dcdfa34f2a75a2f7..3d34aa1d2d9bd5dabd6af21df692a334b605a19f 100644 (file)
  */
 package org.opendaylight.transportpce.pce.service;
 
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.Executors;
+import java.util.stream.Collectors;
+import org.opendaylight.mdsal.binding.api.NotificationPublishService;
+import org.opendaylight.transportpce.common.mapping.PortMapping;
+import org.opendaylight.transportpce.common.network.NetworkTransactionService;
 import org.opendaylight.transportpce.pce.PceComplianceCheck;
 import org.opendaylight.transportpce.pce.PceComplianceCheckResult;
 import org.opendaylight.transportpce.pce.PceSendingPceRPCs;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.CancelResourceReserveInput;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.CancelResourceReserveOutput;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.CancelResourceReserveOutputBuilder;
-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.PathComputationRequestOutput;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.PathComputationRequestOutputBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.ServicePathRpcResult;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.ServicePathRpcResultBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.service.path.rpc.result.PathDescription;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev171017.service.path.rpc.result.PathDescriptionBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.common.service.types.rev161014.configuration.response.common.ConfigurationResponseCommonBuilder;
-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.service.types.rev171016.RpcStatusEx;
-import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev171016.ServicePathNotificationTypes;
-import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev171016.response.parameters.sp.ResponseParametersBuilder;
+import org.opendaylight.transportpce.pce.gnpy.GnpyResult;
+import org.opendaylight.transportpce.pce.gnpy.consumer.GnpyConsumer;
+import org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.Response;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.CancelResourceReserveInput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.CancelResourceReserveOutput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.CancelResourceReserveOutputBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRequestInput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRequestInputBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRequestOutput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRequestOutputBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRerouteRequestInput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRerouteRequestOutput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRerouteRequestOutputBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.ServicePathRpcResult;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.ServicePathRpcResultBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.gnpy.GnpyResponse;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.gnpy.GnpyResponseBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.gnpy.gnpy.response.response.type.NoPathCaseBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.gnpy.gnpy.response.response.type.PathCaseBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.path.computation.request.input.ServiceAEndBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.path.computation.request.input.ServiceZEndBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.path.performance.PathPropertiesBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.path.performance.path.properties.PathMetric;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.path.performance.path.properties.PathMetricBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.service.path.rpc.result.PathDescription;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.service.path.rpc.result.PathDescriptionBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.common.service.types.rev230526.configuration.response.common.ConfigurationResponseCommonBuilder;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev230501.path.description.AToZDirection;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev230501.path.description.ZToADirection;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.RpcStatusEx;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.ServicePathNotificationTypes;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.response.parameters.sp.ResponseParametersBuilder;
+import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.service.handler.header.ServiceHandlerHeaderBuilder;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+@Component(immediate = true)
 public class PathComputationServiceImpl implements PathComputationService {
 
     private static final Logger LOG = LoggerFactory.getLogger(PathComputationServiceImpl.class);
-
     private final NotificationPublishService notificationPublishService;
-    private final DataBroker dataBroker;
+    private NetworkTransactionService networkTransactionService;
+    private final ListeningExecutorService executor;
+    private ServicePathRpcResult notification = null;
+    private final GnpyConsumer gnpyConsumer;
+    private PortMapping portMapping;
 
-    public PathComputationServiceImpl(DataBroker dataBroker,
-                                      NotificationPublishService notificationPublishService) {
+    @Activate
+    public PathComputationServiceImpl(@Reference NetworkTransactionService networkTransactionService,
+            @Reference NotificationPublishService notificationPublishService,
+            @Reference GnpyConsumer gnpyConsumer,
+            @Reference PortMapping portMapping) {
         this.notificationPublishService = notificationPublishService;
-        this.dataBroker = dataBroker;
-    }
-
-    public void init() {
-        LOG.info("init ...");
+        this.networkTransactionService = networkTransactionService;
+        this.executor = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(5));
+        this.gnpyConsumer = gnpyConsumer;
+        this.portMapping = portMapping;
+        LOG.info("PathComputationServiceImpl instantiated");
     }
 
-    public void close() {
-        LOG.info("close.");
-    }
-
-    @Override
-    public CancelResourceReserveOutput cancelResourceReserve(CancelResourceReserveInput input) {
-        LOG.info("cancelResourceReserve");
-        String message = "";
-
-        ServicePathRpcResult notification = new ServicePathRpcResultBuilder()
-                .setNotificationType(ServicePathNotificationTypes.CancelResourceReserve)
-                .setServiceName(input.getServiceName())
-                .setStatus(RpcStatusEx.Pending)
-                .setStatusMessage("Service compliant, submitting cancelResourceReserve Request ...")
-                .build();
+    @SuppressFBWarnings(
+        value = "UPM_UNCALLED_PRIVATE_METHOD",
+        justification = "false positive, this method is used by public method cancelResourceReserve")
+    private void sendNotifications(
+            ServicePathNotificationTypes servicePathNotificationTypes,
+            String serviceName,
+            RpcStatusEx rpcStatusEx,
+            String message,
+            PathDescription pathDescription) {
+        ServicePathRpcResultBuilder servicePathRpcResultBuilder =
+            new ServicePathRpcResultBuilder()
+                .setNotificationType(servicePathNotificationTypes)
+                .setServiceName(serviceName)
+                .setStatus(rpcStatusEx)
+                .setStatusMessage(message);
+        if (pathDescription != null) {
+            servicePathRpcResultBuilder.setPathDescription(pathDescription);
+        }
+        this.notification = servicePathRpcResultBuilder.build();
         try {
-            notificationPublishService.putNotification(notification);
+            notificationPublishService.putNotification(this.notification);
         } catch (InterruptedException e) {
-            LOG.info("notification offer rejected : ", e.getMessage());
+            LOG.info("notification offer rejected: ", e);
         }
-
-        PceSendingPceRPCs sendingPCE = new PceSendingPceRPCs();
-        sendingPCE.cancelResourceReserve();
-        if (sendingPCE.getSuccess()) {
-            message = "ResourceReserve cancelled !";
-        } else {
-            message = "Cancelling ResourceReserve failed !";
-        }
-        LOG.info(message);
-        ConfigurationResponseCommonBuilder configurationResponseCommon = new ConfigurationResponseCommonBuilder();
-        configurationResponseCommon
-                .setAckFinalIndicator("Yes")
-                .setRequestId(input.getServiceHandlerHeader().getRequestId())
-                .setResponseCode("200")
-                .setResponseMessage("")
-                .setResponseMessage(message);
-        CancelResourceReserveOutputBuilder output  = new CancelResourceReserveOutputBuilder();
-        output.setConfigurationResponseCommon(configurationResponseCommon.build());
-        return output.build();
     }
 
     @Override
-    public PathComputationRequestOutput pathComputationRequest(PathComputationRequestInput input) {
-        LOG.info("pathComputationRequest");
-
-        PathComputationRequestOutputBuilder output = new PathComputationRequestOutputBuilder();
-        ConfigurationResponseCommonBuilder configurationResponseCommon = new ConfigurationResponseCommonBuilder();
-
-        PceComplianceCheckResult check = PceComplianceCheck.check(input);
-        if (!check.hasPassed()) {
-            configurationResponseCommon
-                    .setAckFinalIndicator("Yes")
-                    .setRequestId(input.getServiceHandlerHeader().getRequestId())
-                    .setResponseCode("Path not calculated")
-                    .setResponseMessage(check.getMessage());
-
-
-            output.setConfigurationResponseCommon(configurationResponseCommon.build())
-                    .setResponseParameters(null);
+    public ListenableFuture<CancelResourceReserveOutput> cancelResourceReserve(CancelResourceReserveInput input) {
+        LOG.info("cancelResourceReserve");
+        return executor.submit(new Callable<CancelResourceReserveOutput>() {
 
-            return output.build();
-        }
-        ServicePathRpcResult notification = new ServicePathRpcResultBuilder()
-                .setNotificationType(ServicePathNotificationTypes.PathComputationRequest)
-                .setServiceName(input.getServiceName())
-                .setStatus(RpcStatusEx.Pending)
-                .setStatusMessage("Service compliant, submitting pathComputation Request ...")
-                .build();
-        try {
-            notificationPublishService.putNotification(notification);
-        } catch (InterruptedException e) {
-            LOG.info("notification offer rejected : ", e.getMessage());
-        }
+            @Override
+            public CancelResourceReserveOutput call() throws Exception {
+                sendNotifications(
+                        ServicePathNotificationTypes.CancelResourceReserve,
+                        input.getServiceName(),
+                        RpcStatusEx.Pending,
+                        "Service compliant, submitting cancelResourceReserve Request ...",
+                        null);
+                PceSendingPceRPCs sendingPCE = new PceSendingPceRPCs(gnpyConsumer);
+                sendingPCE.cancelResourceReserve();
+                LOG.info("in PathComputationServiceImpl : {}",
+                        Boolean.TRUE.equals(sendingPCE.getSuccess())
+                            ? "ResourceReserve cancelled !"
+                            : "Cancelling ResourceReserve failed !");
+                sendNotifications(
+                        ServicePathNotificationTypes.CancelResourceReserve,
+                        input.getServiceName(),
+                        RpcStatusEx.Successful,
+                        "cancel Resource Reserve successful!",
+                        null);
+                return new CancelResourceReserveOutputBuilder()
+                    .setConfigurationResponseCommon(
+                        new ConfigurationResponseCommonBuilder()
+                            .setAckFinalIndicator("Yes")
+                            .setRequestId(input.getServiceHandlerHeader().getRequestId())
+                            .setResponseCode("200")
+                            .setResponseMessage("")
+                            .build())
+                    .build();
+            }
+        });
+    }
 
-        String message = "";
-        String responseCode = "";
-        PceSendingPceRPCs sendingPCE = new PceSendingPceRPCs(input, dataBroker);
-        sendingPCE.pathComputation();
-        message = sendingPCE.getMessage();
-        responseCode = sendingPCE.getResponseCode();
-        PathDescriptionBuilder path = null;
-        path = sendingPCE.getPathDescription();
+    @Override
+    public ListenableFuture<PathComputationRequestOutput> pathComputationRequest(PathComputationRequestInput input) {
+        LOG.debug("input parameters are : input = {}", input.toString());
+        return executor.submit(new Callable<PathComputationRequestOutput>() {
 
+            @Override
+            public PathComputationRequestOutput call() throws Exception {
+                PathComputationRequestOutputBuilder output = new PathComputationRequestOutputBuilder();
+                ConfigurationResponseCommonBuilder configurationResponseCommon =
+                        new ConfigurationResponseCommonBuilder();
+                PceComplianceCheckResult check = PceComplianceCheck.check(input);
+                if (!check.hasPassed()) {
+                    LOG.error("Path not calculated, service not compliant : {}", check.getMessage());
+                    sendNotifications(
+                        ServicePathNotificationTypes.PathComputationRequest,
+                        input.getServiceName(),
+                        RpcStatusEx.Failed,
+                        "Path not calculated, service not compliant",
+                        null);
+                    configurationResponseCommon
+                            .setAckFinalIndicator("Yes")
+                            .setRequestId(input.getServiceHandlerHeader().getRequestId())
+                            .setResponseCode("Path not calculated")
+                            .setResponseMessage(check.getMessage());
+                    return output
+                        .setConfigurationResponseCommon(configurationResponseCommon.build())
+                        .setResponseParameters(null)
+                        .build();
+                }
+                sendNotifications(
+                    ServicePathNotificationTypes.PathComputationRequest,
+                    input.getServiceName(),
+                    RpcStatusEx.Pending,
+                    "Service compliant, submitting pathComputation Request ...",
+                    null);
+                PceSendingPceRPCs sendingPCE =
+                    new PceSendingPceRPCs(input, networkTransactionService, gnpyConsumer, portMapping);
+                sendingPCE.pathComputation();
+                String message = sendingPCE.getMessage();
+                String responseCode = sendingPCE.getResponseCode();
+                LOG.info("PCE response: {} {}", message, responseCode);
 
-        LOG.info("PCE response: {} {}", message, responseCode);
-        if ((sendingPCE.getSuccess() == false) || (path == null)) {
-            configurationResponseCommon
-                    .setAckFinalIndicator("Yes")
-                    .setRequestId(input.getServiceHandlerHeader().getRequestId())
-                    .setResponseCode(responseCode)
-                    .setResponseMessage(message);
+                //add the GNPy result
+                GnpyResult gnpyAtoZ = sendingPCE.getGnpyAtoZ();
+                GnpyResult gnpyZtoA = sendingPCE.getGnpyZtoA();
+                List<GnpyResponse> listResponse = new ArrayList<>();
+                if (gnpyAtoZ != null) {
+                    GnpyResponse respAtoZ = generateGnpyResponse(gnpyAtoZ.getResponse(),"A-to-Z");
+                    listResponse.add(respAtoZ);
+                }
+                if (gnpyZtoA != null) {
+                    GnpyResponse respZtoA = generateGnpyResponse(gnpyZtoA.getResponse(),"Z-to-A");
+                    listResponse.add(respZtoA);
+                }
+                output
+                    .setGnpyResponse(
+                        listResponse.stream()
+                            .collect(Collectors.toMap(GnpyResponse::key, gnpyResponse -> gnpyResponse)));
 
-            output.setConfigurationResponseCommon(configurationResponseCommon.build());
-            return output.build();
-        }
+                PathDescriptionBuilder path = sendingPCE.getPathDescription();
+                if (Boolean.FALSE.equals(sendingPCE.getSuccess()) || (path == null)) {
+                    sendNotifications(
+                        ServicePathNotificationTypes.PathComputationRequest,
+                        input.getServiceName(),
+                        RpcStatusEx.Failed,
+                        "Path not calculated",
+                        null);
+                    return output
+                        .setConfigurationResponseCommon(
+                            configurationResponseCommon
+                                .setAckFinalIndicator("Yes")
+                                .setRequestId(input.getServiceHandlerHeader().getRequestId())
+                                .setResponseCode(responseCode)
+                                .setResponseMessage(message)
+                                .build())
+                        .build();
+                }
+                // Path calculator returned Success
+                PathDescription pathDescription =
+                    new PathDescriptionBuilder()
+                        .setAToZDirection(path.getAToZDirection())
+                        .setZToADirection(path.getZToADirection())
+                        .build();
+                sendNotifications(
+                    ServicePathNotificationTypes.PathComputationRequest,
+                    input.getServiceName(),
+                    RpcStatusEx.Successful,
+                    message,
+                    pathDescription);
+                org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118
+                        .response.parameters.sp.response.parameters.PathDescription pathDescription1 =
+                    new org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118
+                            .response.parameters.sp.response.parameters.PathDescriptionBuilder()
+                        .setAToZDirection(path.getAToZDirection())
+                        .setZToADirection(path.getZToADirection())
+                        .build();
+                output
+                    .setConfigurationResponseCommon(
+                        configurationResponseCommon
+                            .setAckFinalIndicator("Yes")
+                            .setRequestId(input.getServiceHandlerHeader().getRequestId())
+                            .setResponseCode(responseCode)
+                            .setResponseMessage(message)
+                            .build())
+                    .setResponseParameters(
+                        new ResponseParametersBuilder().setPathDescription(pathDescription1).build());
+                //debug prints
+                AToZDirection atoz = pathDescription.getAToZDirection();
+                if ((atoz != null) && (atoz.getAToZ() != null)) {
+                    LOG.debug("Impl AtoZ Notification: [{}] elements in description", atoz.getAToZ().size());
+                    for (org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev230501
+                            .path.description.atoz.direction.AToZKey key : atoz.getAToZ().keySet()) {
+                        LOG.debug("Impl AtoZ Notification: [{}] {}", key, atoz.getAToZ().get(key));
+                    }
+                }
+                ZToADirection ztoa = pathDescription.getZToADirection();
+                if ((ztoa != null) && (ztoa.getZToA() != null)) {
+                    LOG.debug("Impl ZtoA Notification: [{}] elements in description", ztoa.getZToA().size());
+                    for (org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev230501
+                            .path.description.ztoa.direction.ZToAKey key : ztoa.getZToA().keySet()) {
+                        LOG.debug("Impl ZtoA Notification: [{}] {}", key, ztoa.getZToA().get(key));
+                    }
+                }
+                return output.build();
+            }
+        });
+    }
 
-        // Path calculator returned Success
-        configurationResponseCommon
-                .setAckFinalIndicator("Yes")
-                .setRequestId(input.getServiceHandlerHeader().getRequestId())
-                .setResponseCode(responseCode)
-                .setResponseMessage(message);
+    @Override
+    public ListenableFuture<PathComputationRerouteRequestOutput> pathComputationRerouteRequest(
+            PathComputationRerouteRequestInput input) {
+        return executor.submit(() -> {
+            PathComputationRerouteRequestOutputBuilder output = new PathComputationRerouteRequestOutputBuilder();
+            ConfigurationResponseCommonBuilder configurationResponseCommon = new ConfigurationResponseCommonBuilder()
+                    .setRequestId("none");
+            PceComplianceCheckResult check = PceComplianceCheck.check(input);
+            if (!check.hasPassed()) {
+                LOG.error("Path not calculated, path computation reroute request not compliant : {}",
+                        check.getMessage());
+                configurationResponseCommon
+                        .setAckFinalIndicator("Yes")
+                        .setResponseCode("Path not calculated")
+                        .setResponseMessage(check.getMessage());
+                return output
+                        .setConfigurationResponseCommon(configurationResponseCommon.build())
+                        .build();
+            }
+            PathComputationRequestInput pathComputationInput = new PathComputationRequestInputBuilder()
+                    .setServiceName("no_name")
+                    .setServiceHandlerHeader(new ServiceHandlerHeaderBuilder().setRequestId("none").build())
+                    .setServiceAEnd(new ServiceAEndBuilder(input.getServiceAEnd()).build())
+                    .setServiceZEnd(new ServiceZEndBuilder(input.getServiceZEnd()).build())
+                    .setHardConstraints(input.getHardConstraints())
+                    .setPceRoutingMetric(input.getPceRoutingMetric())
+                    .setResourceReserve(false)
+                    .setSoftConstraints(input.getSoftConstraints())
+                    .setRoutingMetric(input.getRoutingMetric())
+                    .build();
+            PceSendingPceRPCs sendingPCE = new PceSendingPceRPCs(pathComputationInput, networkTransactionService,
+                    gnpyConsumer, portMapping, input.getEndpoints());
+            sendingPCE.pathComputation();
+            String message = sendingPCE.getMessage();
+            String responseCode = sendingPCE.getResponseCode();
+            LOG.info("PCE response: {} {}", message, responseCode);
+            return output.setConfigurationResponseCommon(
+                    configurationResponseCommon
+                            .setAckFinalIndicator("Yes")
+                            .setResponseCode(responseCode)
+                            .setResponseMessage(message)
+                            .build())
+                    .build();
+        });
+    }
 
-        ServicePathRpcResultBuilder tmp = new ServicePathRpcResultBuilder()
-                .setNotificationType(ServicePathNotificationTypes.PathComputationRequest)
-                .setServiceName(input.getServiceName())
-                .setStatus(RpcStatusEx.Successful)
-                .setStatusMessage(message);
-        PathDescription pathDescription = new org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce
-                .pce.rev171017.service.path.rpc.result.PathDescriptionBuilder()
-                .setAToZDirection(path.getAToZDirection())
-                .setZToADirection(path.getZToADirection())
+    public GnpyResponse generateGnpyResponse(Response responseGnpy, String pathDir) {
+        if (responseGnpy == null) {
+            return new GnpyResponseBuilder()
+                .setPathDir(pathDir)
+                .setResponseType(null)
+                .setFeasibility(true)
                 .build();
-        tmp.setPathDescription(pathDescription);
-
-        notification = tmp.build();
-        try {
-            notificationPublishService.putNotification(notification);
-        } catch (InterruptedException e) {
-            LOG.error("notification offer rejected : {}", e.getMessage());
         }
-
-        org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types
-                .rev171016.response.parameters.sp.response.parameters.PathDescription pathDescription1
-                = new org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types
-                .rev171016.response.parameters.sp.response.parameters.PathDescriptionBuilder()
-                .setAToZDirection(path.getAToZDirection())
-                .setZToADirection(path.getZToADirection())
+        if (responseGnpy.getResponseType()
+                instanceof org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.response.response.type.NoPathCase) {
+            LOG.info("GNPy : path is not feasible");
+            org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.response.response.type.NoPathCase
+                    noPathGnpy =
+                (org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.response.response.type.NoPathCase)
+                    responseGnpy.getResponseType();
+            return new GnpyResponseBuilder()
+                .setPathDir(pathDir)
+                .setResponseType(
+                    new NoPathCaseBuilder()
+                        .setNoPath(noPathGnpy.getNoPath())
+                        .build())
+                .setFeasibility(false)
                 .build();
-        ResponseParametersBuilder rpb  = new ResponseParametersBuilder()
-                .setPathDescription(pathDescription1);
-
-        output.setConfigurationResponseCommon(configurationResponseCommon.build())
-              .setResponseParameters(rpb.build());
-
-        //debug prints
-        AToZDirection atoz = pathDescription.getAToZDirection();
-        if ((atoz != null) && (atoz.getAToZ() != null)) {
-            LOG.info("Impl AtoZ Notification: [{}] elements in description", atoz.getAToZ().size());
-            for (int i = 0; i < atoz.getAToZ().size(); i++) {
-                LOG.info("Impl AtoZ Notification: [{}] {}", i, atoz.getAToZ().get(i));
-            }
         }
-        ZToADirection ztoa = pathDescription.getZToADirection();
-        if ((ztoa != null) && (ztoa.getZToA() != null)) {
-            LOG.info("Impl ZtoA Notification: [{}] elements in description", ztoa.getZToA().size());
-            for (int i = 0; i < ztoa.getZToA().size(); i++) {
-                LOG.info("Impl ZtoA Notification: [{}] {}", i, ztoa.getZToA().get(i));
+        if (responseGnpy.getResponseType()
+                instanceof org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.response.response.type.PathCase) {
+            LOG.info("GNPy : path is feasible");
+            org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.response.response.type.PathCase
+                    pathCase =
+                (org.opendaylight.yang.gen.v1.gnpy.path.rev220615.result.response.response.type.PathCase)
+                    responseGnpy.getResponseType();
+            List<org.opendaylight.yang.gen.v1.gnpy.path.rev220615.generic.path.properties.path.properties.PathMetric>
+                    pathMetricList =
+                new ArrayList<>(pathCase.getPathProperties().getPathMetric().values());
+            List<PathMetric> gnpyPathMetricList = new ArrayList<>();
+            for (org.opendaylight.yang.gen.v1.gnpy.path.rev220615.generic.path.properties.path.properties.PathMetric
+                    pathMetricGnpy : pathMetricList) {
+                gnpyPathMetricList.add(
+                    new PathMetricBuilder()
+                        .setMetricType(pathMetricGnpy.getMetricType())
+                        .setAccumulativeValue(pathMetricGnpy.getAccumulativeValue())
+                        .build());
             }
+            return new GnpyResponseBuilder()
+                .setPathDir(pathDir)
+                .setResponseType(
+                    new PathCaseBuilder()
+                        .setPathProperties(
+                            new PathPropertiesBuilder()
+                                .setPathMetric(gnpyPathMetricList.stream()
+                                    .collect(Collectors.toMap(PathMetric::key, pathMetric -> pathMetric)))
+                                .build())
+                        .build())
+                .setFeasibility(true)
+                .build();
         }
-        //debug prints
-        return output.build();
+        return new GnpyResponseBuilder()
+            .setPathDir(pathDir)
+            .setResponseType(null)
+            .setFeasibility(true)
+            .build();
     }
 
 }