create API method to get current configuration of the service

modules/api/src/main/java/org/eclipse/xpanse/api/controllers/ServiceConfigurationApi.java

@@ -17,6 +17,7 @@
 import java.util.List;
 import lombok.extern.slf4j.Slf4j;
 import org.eclipse.xpanse.api.config.AuditApiRequest;
+import org.eclipse.xpanse.modules.database.serviceconfiguration.ServiceConfigurationEntity;
 import org.eclipse.xpanse.modules.database.serviceconfiguration.update.ServiceConfigurationUpdateRequest;
 import org.eclipse.xpanse.modules.deployment.ServiceConfigurationManager;
 import org.eclipse.xpanse.modules.models.service.order.ServiceOrder;
@@ -51,6 +52,33 @@ public class ServiceConfigurationApi {
     @Resource
     private ServiceConfigurationManager serviceConfigurationManager;
 
+    /**
+     * Query the service's current configuration by id of the deployed service.
+     *
+     * @param serviceId id of the deployed service.
+     * @return ServiceConfigurationEntity.
+     */
+    @Tag(name = "ServiceConfiguration",
+            description = "APIs for managing service's configuration.")
+    @GetMapping(value = "/service/current/config/{serviceId}",
+            produces = MediaType.APPLICATION_JSON_VALUE)
+    @ResponseStatus(HttpStatus.OK)
+    @Operation(description = "Query the service's current configuration by"
+            + " id of the deployed service.")
+    @AuditApiRequest(methodName = "getCspFromServiceId")
+    public ServiceConfigurationEntity getCurrentConfigurationOfService(
+            @Parameter(name = "serviceId", description = "The id of the deployed service")
+            @PathVariable("serviceId") String serviceId) {
+        return serviceConfigurationManager.getCurrentConfigurationOfService(serviceId);
+    }
+
+    /**
+     * Update the service's configuration to the registered service template.
+     *
+     * @param serviceId                  id of the deployed service
+     * @param serviceConfigurationUpdate serviceConfigurationUpdate.
+     * @return serviceOrder.
+     */
     @Tag(name = "ServiceConfiguration",
             description = "APIs for managing service's configuration.")
     @PutMapping(value = "/services/config/{serviceId}",

modules/api/src/main/java/org/eclipse/xpanse/api/exceptions/handler/ServiceConfigurationExceptionHandler.java

@@ -14,6 +14,7 @@
 import org.eclipse.xpanse.modules.models.response.Response;
 import org.eclipse.xpanse.modules.models.response.ResultType;
 import org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions.ServiceConfigurationInvalidException;
+import org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions.ServiceConfigurationNotFoundException;
 import org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions.ServiceConfigurationUpdateRequestNotFoundException;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
@@ -54,4 +55,16 @@ public Response handleServiceConfigurationUpdateRequestNotFoundException(
         return getErrorResponse(ResultType.SERVICE_CONFIG_UPDATE_REQUEST_NOT_FOUND,
                 Collections.singletonList(ex.getMessage()));
     }
+
+    /**
+     * Exception handler for ServiceConfigurationNotFoundException.
+     */
+    @ExceptionHandler({ServiceConfigurationNotFoundException.class})
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ResponseBody
+    public Response handleServiceConfigurationNotFoundException(
+            ServiceConfigurationNotFoundException ex) {
+        return getErrorResponse(ResultType.SERVICE_CONFIGURATION_NOT_FOUND,
+                Collections.singletonList(ex.getMessage()));
+    }
 }

modules/database/src/main/java/org/eclipse/xpanse/modules/database/serviceconfiguration/ServiceConfigurationEntity.java

@@ -40,7 +40,7 @@ public class ServiceConfigurationEntity {
     @MapsId
     @OneToOne
     @JoinColumn(name = "service_id")
-    @JsonIgnoreProperties({"serviceConfigurationEntity"})
+    @JsonIgnoreProperties({"deployResourceList", "serviceConfigurationEntity"})
     private DeployServiceEntity deployServiceEntity;
 
     @Column(columnDefinition = "json")

modules/deployment/src/main/java/org/eclipse/xpanse/modules/deployment/ServiceConfigurationManager.java

@@ -22,6 +22,8 @@
 import lombok.extern.slf4j.Slf4j;
 import org.eclipse.xpanse.modules.database.resource.DeployResourceEntity;
 import org.eclipse.xpanse.modules.database.service.DeployServiceEntity;
+import org.eclipse.xpanse.modules.database.serviceconfiguration.ServiceConfigurationEntity;
+import org.eclipse.xpanse.modules.database.serviceconfiguration.ServiceConfigurationStorage;
 import org.eclipse.xpanse.modules.database.serviceconfiguration.update.ServiceConfigurationUpdateRequest;
 import org.eclipse.xpanse.modules.database.serviceconfiguration.update.ServiceConfigurationUpdateRequestQueryModel;
 import org.eclipse.xpanse.modules.database.serviceconfiguration.update.ServiceConfigurationUpdateStorage;
@@ -44,6 +46,7 @@
 import org.eclipse.xpanse.modules.models.serviceconfiguration.ServiceConfigurationUpdate;
 import org.eclipse.xpanse.modules.models.serviceconfiguration.enums.ServiceConfigurationStatus;
 import org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions.ServiceConfigurationInvalidException;
+import org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions.ServiceConfigurationNotFoundException;
 import org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions.ServiceConfigurationUpdateRequestNotFoundException;
 import org.eclipse.xpanse.modules.models.servicetemplate.ConfigManageScript;
 import org.eclipse.xpanse.modules.models.servicetemplate.Ocl;
@@ -74,6 +77,9 @@ public class ServiceConfigurationManager {
     @Resource
     private ServiceConfigurationUpdateStorage serviceConfigurationUpdateStorage;
 
+    @Resource
+    private ServiceConfigurationStorage serviceConfigurationStorage;
+
     @Resource
     private ServiceTemplateStorage serviceTemplateStorage;
 
@@ -94,6 +100,24 @@ public class ServiceConfigurationManager {
     private ServiceConfigurationVariablesJsonSchemaGenerator
             serviceConfigurationVariablesJsonSchemaGenerator;
 
+    /**
+     * Query the service's current configuration by id of the deployed service.
+     *
+     * @param serviceId id of the deployed service
+     * @return ServiceConfigurationEntity.
+     */
+    public ServiceConfigurationEntity getCurrentConfigurationOfService(String serviceId) {
+        ServiceConfigurationEntity entity = serviceConfigurationStorage
+                .findServiceConfigurationById(UUID.fromString(serviceId));
+        if (Objects.isNull(entity)) {
+            String errorMsg = String.format("Service Configuration with service id %s not found.",
+                    serviceId);
+            log.error(errorMsg);
+            throw new ServiceConfigurationNotFoundException(errorMsg);
+        }
+        return entity;
+    }
+
     /**
      * update ServiceConfiguration.
      *

modules/models/src/main/java/org/eclipse/xpanse/modules/models/response/ResultType.java

@@ -75,7 +75,8 @@ public enum ResultType {
     INVALID_GIT_REPO_DETAILS("Invalid Git Repo Details"),
     FILE_LOCKED("File Locked"),
     INVALID_SERVICE_CONFIGURATION("Service Configuration Invalid"),
-    SERVICE_CONFIG_UPDATE_REQUEST_NOT_FOUND("Service Configuration Update Request Not Found");
+    SERVICE_CONFIG_UPDATE_REQUEST_NOT_FOUND("Service Configuration Update Request Not Found"),
+    SERVICE_CONFIGURATION_NOT_FOUND("Service Configuration Not Found");
 
     private final String value;
 

modules/models/src/main/java/org/eclipse/xpanse/modules/models/serviceconfiguration/exceptions/ServiceConfigurationNotFoundException.java

@@ -0,0 +1,15 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ * SPDX-FileCopyrightText: Huawei Inc.
+ */
+
+package org.eclipse.xpanse.modules.models.serviceconfiguration.exceptions;
+
+/**
+ * Exception thrown when service configuration not found.
+ */
+public class ServiceConfigurationNotFoundException extends RuntimeException {
+    public ServiceConfigurationNotFoundException(String message) {
+        super(message);
+    }
+}

modules/models/src/main/java/org/eclipse/xpanse/modules/models/serviceconfiguration/exceptions/ServiceConfigurationUpdateRequestNotFoundException.java

@@ -8,9 +8,7 @@
 /**
  * Exception thrown when service configuration update request not found.
  */
-
-public class ServiceConfigurationUpdateRequestNotFoundException  extends RuntimeException {
-
+public class ServiceConfigurationUpdateRequestNotFoundException extends RuntimeException {
     public ServiceConfigurationUpdateRequestNotFoundException(String message) {
         super(message);
     }