Use singleton for api statistics
[policy/api.git] / main / src / main / java / org / onap / policy / api / main / rest / ApiRestController.java
index 9b4d75d..eb60c5e 100644 (file)
-/*-
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * SPDX-License-Identifier: Apache-2.0
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.policy.api.main.rest;
-
-import io.swagger.annotations.Api;
-import io.swagger.annotations.ApiOperation;
-import io.swagger.annotations.Info;
-import io.swagger.annotations.SwaggerDefinition;
-import io.swagger.annotations.Tag;
-import javax.ws.rs.GET;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-import org.onap.policy.common.endpoints.report.HealthCheckReport;
-
-/**
- * Class to provide api REST services.
- *
- */
-@Path("/")
-@Api
-@Produces(MediaType.APPLICATION_JSON)
-@SwaggerDefinition(
-        info = @Info(description = "Policy Api Service", version = "v1.0", title = "Policy Api"),
-        consumes = { MediaType.APPLICATION_JSON }, produces = { MediaType.APPLICATION_JSON },
-        schemes = { SwaggerDefinition.Scheme.HTTP },
-        tags = { @Tag(name = "policy-api", description = "Policy Api Service Operations") })
-public class ApiRestController {
-
-    @GET
-    @Path("healthcheck")
-    @Produces(MediaType.APPLICATION_JSON)
-    @ApiOperation(value = "Perform a system healthcheck",
-            notes = "Provides healthy status of the Policy Api component", response = HealthCheckReport.class)
-    public Response healthcheck() {
-        return Response.status(Response.Status.OK).entity(new HealthCheckProvider().performHealthCheck()).build();
-    }
-}
+/*-\r
+ * ============LICENSE_START=======================================================\r
+ * ONAP Policy API\r
+ * ================================================================================\r
+ * Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.\r
+ * Modifications Copyright (C) 2019-2021 AT&T Intellectual Property. All rights reserved.\r
+ * Modifications Copyright (C) 2020 Nordix Foundation.\r
+ * Modifications Copyright (C) 2020 Bell Canada.\r
+ * ================================================================================\r
+ * Licensed under the Apache License, Version 2.0 (the "License");\r
+ * you may not use this file except in compliance with the License.\r
+ * You may obtain a copy of the License at\r
+ *\r
+ *      http://www.apache.org/licenses/LICENSE-2.0\r
+ *\r
+ * Unless required by applicable law or agreed to in writing, software\r
+ * distributed under the License is distributed on an "AS IS" BASIS,\r
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ * See the License for the specific language governing permissions and\r
+ * limitations under the License.\r
+ *\r
+ * SPDX-License-Identifier: Apache-2.0\r
+ * ============LICENSE_END=========================================================\r
+ */\r
+\r
+package org.onap.policy.api.main.rest;\r
+\r
+import io.swagger.annotations.Api;\r
+import io.swagger.annotations.ApiOperation;\r
+import io.swagger.annotations.ApiParam;\r
+import io.swagger.annotations.ApiResponse;\r
+import io.swagger.annotations.ApiResponses;\r
+import io.swagger.annotations.Authorization;\r
+import io.swagger.annotations.BasicAuthDefinition;\r
+import io.swagger.annotations.Extension;\r
+import io.swagger.annotations.ExtensionProperty;\r
+import io.swagger.annotations.Info;\r
+import io.swagger.annotations.ResponseHeader;\r
+import io.swagger.annotations.SecurityDefinition;\r
+import io.swagger.annotations.SwaggerDefinition;\r
+import java.net.HttpURLConnection;\r
+import java.util.List;\r
+import java.util.UUID;\r
+import javax.ws.rs.Consumes;\r
+import javax.ws.rs.DELETE;\r
+import javax.ws.rs.DefaultValue;\r
+import javax.ws.rs.GET;\r
+import javax.ws.rs.HeaderParam;\r
+import javax.ws.rs.POST;\r
+import javax.ws.rs.Path;\r
+import javax.ws.rs.PathParam;\r
+import javax.ws.rs.Produces;\r
+import javax.ws.rs.QueryParam;\r
+import javax.ws.rs.core.Response;\r
+import javax.ws.rs.core.Response.Status;\r
+import org.onap.policy.api.main.rest.provider.HealthCheckProvider;\r
+import org.onap.policy.api.main.rest.provider.PolicyProvider;\r
+import org.onap.policy.api.main.rest.provider.PolicyTypeProvider;\r
+import org.onap.policy.api.main.rest.provider.StatisticsProvider;\r
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;\r
+import org.onap.policy.common.endpoints.report.HealthCheckReport;\r
+import org.onap.policy.common.endpoints.utils.NetLoggerUtil;\r
+import org.onap.policy.common.endpoints.utils.NetLoggerUtil.EventType;\r
+import org.onap.policy.models.base.PfModelException;\r
+import org.onap.policy.models.base.PfModelRuntimeException;\r
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;\r
+import org.slf4j.Logger;\r
+import org.slf4j.LoggerFactory;\r
+\r
+/**\r
+ * Class to provide REST API services.\r
+ *\r
+ * @author Chenfei Gao (cgao@research.att.com)\r
+ */\r
+@Path("/policy/api/v1")\r
+@Api(value = "Policy Design API")\r
+@Produces({"application/json", "application/yaml"})\r
+@Consumes({"application/json", "application/yaml"})\r
+@SwaggerDefinition(\r
+    info = @Info(\r
+        description = "Policy Design API is publicly exposed for clients to Create/Read/Update/Delete"\r
+            + " policy types, policy type implementation and policies which can be recognized"\r
+            + " and executable by incorporated policy engines. It is an"\r
+            + " independent component running rest service that takes all policy design API calls"\r
+            + " from clients and then assign them to different API working functions. Besides"\r
+            + " that, API is also exposed for clients to retrieve healthcheck status of this API"\r
+            + " rest service and the statistics report including the counters of API invocation.",\r
+        version = "1.0.0", title = "Policy Design",\r
+        extensions = {@Extension(properties = {@ExtensionProperty(name = "planned-retirement-date", value = "tbd"),\r
+            @ExtensionProperty(name = "component", value = "Policy Framework")})}),\r
+    schemes = {SwaggerDefinition.Scheme.HTTP, SwaggerDefinition.Scheme.HTTPS},\r
+    securityDefinition = @SecurityDefinition(basicAuthDefinitions = {@BasicAuthDefinition(key = "basicAuth")}))\r
+public class ApiRestController extends CommonRestController {\r
+\r
+    private static final Logger LOGGER = LoggerFactory.getLogger(ApiRestController.class);\r
+\r
+    private static final String ERROR_MESSAGE_NO_POLICIES_FOUND = "No policies found";\r
+\r
+    private static final String EXTENSION_NAME = "interface info";\r
+\r
+    private static final String API_VERSION_NAME = "api-version";\r
+    private static final String API_VERSION = "1.0.0";\r
+\r
+    private static final String LAST_MOD_NAME = "last-mod-release";\r
+\r
+    private static final String AUTHORIZATION_TYPE = "basicAuth";\r
+\r
+    private static final String VERSION_MINOR_NAME = "X-MinorVersion";\r
+    private static final String VERSION_MINOR_DESCRIPTION =\r
+        "Used to request or communicate a MINOR version back from the client"\r
+            + " to the server, and from the server back to the client";\r
+\r
+    private static final String VERSION_PATCH_NAME = "X-PatchVersion";\r
+    private static final String VERSION_PATCH_DESCRIPTION = "Used only to communicate a PATCH version in a response for"\r
+        + " troubleshooting purposes only, and will not be provided by" + " the client on request";\r
+\r
+    private static final String VERSION_LATEST_NAME = "X-LatestVersion";\r
+    private static final String VERSION_LATEST_DESCRIPTION = "Used only to communicate an API's latest version";\r
+\r
+    private static final String REQUEST_ID_NAME = "X-ONAP-RequestID";\r
+    private static final String REQUEST_ID_HDR_DESCRIPTION = "Used to track REST transactions for logging purpose";\r
+    private static final String REQUEST_ID_PARAM_DESCRIPTION = "RequestID for http transaction";\r
+\r
+    private static final String AUTHENTICATION_ERROR_MESSAGE = "Authentication Error";\r
+    private static final String AUTHORIZATION_ERROR_MESSAGE = "Authorization Error";\r
+    private static final String SERVER_ERROR_MESSAGE = "Internal Server Error";\r
+    private static final String NOT_FOUND_MESSAGE = "Resource Not Found";\r
+    private static final String INVALID_BODY_MESSAGE = "Invalid Body";\r
+    private static final String INVALID_PAYLOAD_MESSAGE = "Not Acceptable Payload";\r
+    private static final String HTTP_CONFLICT_MESSAGE = "Delete Conflict, Rule Violation";\r
+\r
+\r
+    /**\r
+     * Retrieves the healthcheck status of the API component.\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/healthcheck")\r
+    @ApiOperation(value = "Perform a system healthcheck", notes = "Returns healthy status of the Policy API component",\r
+        response = HealthCheckReport.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"HealthCheck", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response\r
+        getHealthCheck(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        updateApiStatisticsCounter(Target.OTHER, Result.SUCCESS, HttpMethod.GET);\r
+        return makeOkResponse(requestId, new HealthCheckProvider().performHealthCheck());\r
+    }\r
+\r
+    /**\r
+     * Retrieves the statistics report of the API component.\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/statistics")\r
+    @ApiOperation(value = "Retrieve current statistics",\r
+        notes = "Returns current statistics including the counters of API invocation",\r
+        response = StatisticsReport.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Statistics", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response\r
+        getStatistics(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        updateApiStatisticsCounter(Target.OTHER, Result.SUCCESS, HttpMethod.GET);\r
+\r
+        return makeOkResponse(requestId, new StatisticsProvider().fetchCurrentStatistics());\r
+    }\r
+\r
+    /**\r
+     * Retrieves all available policy types.\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes")\r
+    @ApiOperation(value = "Retrieve existing policy types",\r
+        notes = "Returns a list of existing policy types stored in Policy Framework",\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"PolicyType", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response\r
+        getAllPolicyTypes(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.fetchPolicyTypes(null, null);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves all versions of a particular policy type.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}")\r
+    @ApiOperation(value = "Retrieve all available versions of a policy type",\r
+        notes = "Returns a list of all available versions for the specified policy type",\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"PolicyType", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response getAllVersionsOfPolicyType(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.fetchPolicyTypes(policyTypeId, null);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes/{}", policyTypeId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves specified version of a particular policy type.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param versionId the version of specified policy type\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/{versionId}")\r
+    @ApiOperation(value = "Retrieve one particular version of a policy type",\r
+        notes = "Returns a particular version for the specified policy type", response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"PolicyType", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response getSpecificVersionOfPolicyType(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("versionId") @ApiParam(value = "Version of policy type", required = true) String versionId,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.fetchPolicyTypes(policyTypeId, versionId);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes/{}/versions/{}", policyTypeId, versionId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves latest version of a particular policy type.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/latest")\r
+    @ApiOperation(value = "Retrieve latest version of a policy type",\r
+        notes = "Returns latest version for the specified policy type", response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"PolicyType", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response getLatestVersionOfPolicyType(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.fetchLatestPolicyTypes(policyTypeId);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes/{}/versions/latest", policyTypeId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Creates a new policy type.\r
+     *\r
+     * @param body the body of policy type following TOSCA definition\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @POST\r
+    @Path("/policytypes")\r
+    @ApiOperation(value = "Create a new policy type", notes = "Client should provide TOSCA body of the new policy type",\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"PolicyType", },\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_BAD_REQUEST, message = INVALID_BODY_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_ACCEPTABLE, message = INVALID_PAYLOAD_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response createPolicyType(\r
+        @ApiParam(value = "Entity body of policy type", required = true) ToscaServiceTemplate body,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        if (NetLoggerUtil.getNetworkLogger().isInfoEnabled()) {\r
+            NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST, "/policytypes", toJson(body));\r
+        }\r
+\r
+        try (var policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.createPolicyType(body);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.SUCCESS, HttpMethod.POST);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("POST /policytypes", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.POST);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Deletes specified version of a particular policy type.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param versionId the version of specified policy type\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @DELETE\r
+    @Path("/policytypes/{policyTypeId}/versions/{versionId}")\r
+    @ApiOperation(value = "Delete one version of a policy type",\r
+        notes = "Rule 1: pre-defined policy types cannot be deleted;"\r
+            + "Rule 2: policy types that are in use (parameterized by a TOSCA policy) cannot be deleted."\r
+            + "The parameterizing TOSCA policies must be deleted first;",\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"PolicyType", },\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_CONFLICT, message = HTTP_CONFLICT_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response deleteSpecificVersionOfPolicyType(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("versionId") @ApiParam(value = "Version of policy type", required = true) String versionId,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.deletePolicyType(policyTypeId, versionId);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.SUCCESS, HttpMethod.DELETE);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("DELETE /policytypes/{}/versions/{}", policyTypeId, versionId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.DELETE);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves all versions of a particular policy.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param policyTypeVersion the version of specified policy type\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies")\r
+    @ApiOperation(\r
+        value = "Retrieve all versions of a policy created for a particular policy type version",\r
+        notes = "Returns a list of all versions of specified policy created for the specified policy type version",\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy,"},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")\r
+            })\r
+        }\r
+    )\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)\r
+    })\r
+    public Response getAllPolicies(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("policyTypeVersion") @ApiParam(value = "Version of policy type",\r
+            required = true) String policyTypeVersion,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @QueryParam("mode") @DefaultValue("bare") @ApiParam("Fetch mode for policies, BARE for bare policies (default),"\r
+            + " REFERENCED for fully referenced policies") PolicyFetchMode mode\r
+    ) {\r
+\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.fetchPolicies(policyTypeId, policyTypeVersion, null, null, mode);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes/{}/versions/{}/policies", policyTypeId, policyTypeVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves all versions of a particular policy.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param policyTypeVersion the version of specified policy type\r
+     * @param policyId the ID of specified policy\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}")\r
+    @ApiOperation(value = "Retrieve all version details of a policy created for a particular policy type version",\r
+        notes = "Returns a list of all version details of the specified policy", response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")\r
+            })\r
+        }\r
+    )\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)\r
+    })\r
+    public Response getAllVersionsOfPolicy(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("policyTypeVersion") @ApiParam(value = "Version of policy type",\r
+            required = true) String policyTypeVersion,\r
+        @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @QueryParam("mode") @DefaultValue("bare") @ApiParam("Fetch mode for policies, BARE for bare policies (default),"\r
+            + " REFERENCED for fully referenced policies") PolicyFetchMode mode\r
+    ) {\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.fetchPolicies(policyTypeId, policyTypeVersion, policyId, null, mode);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("/policytypes/{}/versions/{}/policies/{}", policyTypeId, policyTypeVersion, policyId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves the specified version of a particular policy.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param policyTypeVersion the version of specified policy type\r
+     * @param policyId the ID of specified policy\r
+     * @param policyVersion the version of specified policy\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}/versions/{policyVersion}")\r
+    @ApiOperation(value = "Retrieve one version of a policy created for a particular policy type version",\r
+        notes = "Returns a particular version of specified policy created for the specified policy type version",\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")\r
+            })\r
+        }\r
+    )\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)\r
+    })\r
+    public Response getSpecificVersionOfPolicy(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("policyTypeVersion") @ApiParam(value = "Version of policy type",\r
+            required = true) String policyTypeVersion,\r
+        @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
+        @PathParam("policyVersion") @ApiParam(value = "Version of policy", required = true) String policyVersion,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @QueryParam("mode") @DefaultValue("bare") @ApiParam("Fetch mode for policies, BARE for bare policies (default),"\r
+            + " REFERENCED for fully referenced policies") PolicyFetchMode mode\r
+    ) {\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.fetchPolicies(policyTypeId, policyTypeVersion, policyId, policyVersion, mode);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes/{}/versions/{}/policies/{}/versions/{}", policyTypeId, policyTypeVersion,\r
+                policyId, policyVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves the latest version of a particular policy.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param policyTypeVersion the version of specified policy type\r
+     * @param policyId the ID of specified policy\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}/versions/latest")\r
+    @ApiOperation(value = "Retrieve the latest version of a particular policy",\r
+        notes = "Returns the latest version of specified policy", response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response getLatestVersionOfPolicy(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("policyTypeVersion") @ApiParam(value = "Version of policy type",\r
+            required = true) String policyTypeVersion,\r
+        @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @QueryParam("mode") @ApiParam("Fetch mode for policies, TERSE for bare policies (default), "\r
+            + "REFERENCED for fully referenced policies") PolicyFetchMode mode) {\r
+\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.fetchLatestPolicies(policyTypeId, policyTypeVersion, policyId, mode);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policytypes/{}/versions/{}/policies/{}/versions/latest", policyTypeId, policyTypeVersion,\r
+                policyId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Creates a new policy for a particular policy type and version.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param policyTypeVersion the version of specified policy type\r
+     * @param body the body of policy following TOSCA definition\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @POST\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies")\r
+    @ApiOperation(value = "Create a new policy for a policy type version",\r
+        notes = "Client should provide TOSCA body of the new policy",\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+            response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_BAD_REQUEST, message = INVALID_BODY_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_ACCEPTABLE, message = INVALID_PAYLOAD_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response createPolicy(\r
+        @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+        @PathParam("policyTypeVersion") @ApiParam(value = "Version of policy type",\r
+            required = true) String policyTypeVersion,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @ApiParam(value = "Entity body of policy", required = true) ToscaServiceTemplate body) {\r
+\r
+        if (NetLoggerUtil.getNetworkLogger().isInfoEnabled()) {\r
+            NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST,\r
+                "/policytypes/" + policyTypeId + "/versions/" + policyTypeVersion + "/policies", toJson(body));\r
+        }\r
+\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyProvider.createPolicy(policyTypeId, policyTypeVersion, body);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.POST);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("POST /policytypes/{}/versions/{}/policies", policyTypeId, policyTypeVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.POST);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Deletes the specified version of a particular policy.\r
+     *\r
+     * @param policyTypeId the ID of specified policy type\r
+     * @param policyTypeVersion the version of specified policy type\r
+     * @param policyId the ID of specified policy\r
+     * @param policyVersion the version of specified policy\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @DELETE\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}/versions/{policyVersion}")\r
+    @ApiOperation(value = "Delete a particular version of a policy",\r
+        notes = "Rule: the version that has been deployed in PDP group(s) cannot be deleted",\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Dublin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_CONFLICT, message = HTTP_CONFLICT_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response deleteSpecificVersionOfPolicy(\r
+        @PathParam("policyTypeId") @ApiParam(value = "PolicyType ID", required = true) String policyTypeId,\r
+        @PathParam("policyTypeVersion") @ApiParam(value = "Version of policy type",\r
+            required = true) String policyTypeVersion,\r
+        @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
+        @PathParam("policyVersion") @ApiParam(value = "Version of policy", required = true) String policyVersion,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.deletePolicy(policyTypeId, policyTypeVersion, policyId, policyVersion);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.DELETE);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("DELETE /policytypes/{}/versions/{}/policies/{}/versions/{}", policyTypeId, policyTypeVersion,\r
+                policyId, policyVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.DELETE);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves all the available policies.\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policies")\r
+    @ApiOperation(value = "Retrieve all versions of available policies",\r
+        notes = "Returns all version of available policies",\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Guilin")\r
+            })\r
+        }\r
+    )\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)\r
+    })\r
+    public Response getPolicies(\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @QueryParam("mode") @DefaultValue("bare") @ApiParam("Fetch mode for policies, BARE for bare policies (default),"\r
+            + " REFERENCED for fully referenced policies") PolicyFetchMode mode\r
+    ) {\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.fetchPolicies(null, null, null, null, mode);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policies/ --", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            if (pfme.getErrorResponse().getResponseCode().equals(Status.NOT_FOUND)) {\r
+                pfme.getErrorResponse().setErrorMessage(ERROR_MESSAGE_NO_POLICIES_FOUND);\r
+                pfme.getErrorResponse().setErrorDetails(List.of(ERROR_MESSAGE_NO_POLICIES_FOUND));\r
+            }\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Retrieves the specified version of a particular policy.\r
+     *\r
+     * @param policyId the Name of specified policy\r
+     * @param policyVersion the version of specified policy\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @GET\r
+    @Path("/policies/{policyId}/versions/{policyVersion}")\r
+    @ApiOperation(value = "Retrieve specific version of a specified policy",\r
+        notes = "Returns a particular version of specified policy",\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Guilin")\r
+            })\r
+        }\r
+    )\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)\r
+    })\r
+    public Response getSpecificPolicy(\r
+        @PathParam("policyId") @ApiParam(value = "Name of policy", required = true) String policyId,\r
+        @PathParam("policyVersion") @ApiParam(value = "Version of policy", required = true) String policyVersion,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @QueryParam("mode") @DefaultValue("bare") @ApiParam("Fetch mode for policies, BARE for bare policies (default),"\r
+            + " REFERENCED for fully referenced policies") PolicyFetchMode mode\r
+    ) {\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.fetchPolicies(null, null, policyId, policyVersion, mode);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("GET /policies/{}/versions/{}", policyId, policyVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Creates one or more new policies in one call.\r
+     *\r
+     * @param body the body of policy following TOSCA definition\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @POST\r
+    @Path("/policies")\r
+    @ApiOperation(value = "Create one or more new policies",\r
+        notes = "Client should provide TOSCA body of the new polic(ies)",\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+            response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "El Alto")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_BAD_REQUEST, message = INVALID_BODY_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_ACCEPTABLE, message = INVALID_PAYLOAD_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response createPolicies(\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,\r
+        @ApiParam(value = "Entity body of policy", required = true) ToscaServiceTemplate body) {\r
+\r
+        if (NetLoggerUtil.getNetworkLogger().isInfoEnabled()) {\r
+            NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST, "/policies", toJson(body));\r
+        }\r
+\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyProvider.createPolicies(body);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.POST);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("POST /policies", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.POST);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * Deletes the specified version of a particular policy.\r
+     *\r
+     * @param policyId the ID of specified policy\r
+     * @param policyVersion the version of specified policy\r
+     *\r
+     * @return the Response object containing the results of the API operation\r
+     */\r
+    @DELETE\r
+    @Path("/policies/{policyId}/versions/{policyVersion}")\r
+    @ApiOperation(value = "Delete a particular version of a policy",\r
+        notes = "Rule: the version that has been deployed in PDP group(s) cannot be deleted",\r
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE), tags = {"Policy", },\r
+        response = ToscaServiceTemplate.class,\r
+        responseHeaders = {\r
+            @ResponseHeader(name = VERSION_MINOR_NAME,\r
+                description = VERSION_MINOR_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_PATCH_NAME,\r
+                description = VERSION_PATCH_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,\r
+                response = String.class),\r
+            @ResponseHeader(name = REQUEST_ID_NAME,\r
+                description = REQUEST_ID_HDR_DESCRIPTION, response = UUID.class)},\r
+        extensions = {\r
+            @Extension(name = EXTENSION_NAME, properties = {\r
+                @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),\r
+                @ExtensionProperty(name = LAST_MOD_NAME, value = "Guilin")})})\r
+    @ApiResponses(value = {\r
+        @ApiResponse(code = HttpURLConnection.HTTP_UNAUTHORIZED, message = AUTHENTICATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_FORBIDDEN, message = AUTHORIZATION_ERROR_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_NOT_FOUND, message = NOT_FOUND_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_CONFLICT, message = HTTP_CONFLICT_MESSAGE),\r
+        @ApiResponse(code = HttpURLConnection.HTTP_INTERNAL_ERROR, message = SERVER_ERROR_MESSAGE)})\r
+    public Response deleteSpecificPolicy(\r
+        @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
+        @PathParam("policyVersion") @ApiParam(value = "Version of policy", required = true) String policyVersion,\r
+        @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId) {\r
+\r
+        try (var policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                policyProvider.deletePolicy(null, null, policyId, policyVersion);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.DELETE);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.warn("DELETE /policies/{}/versions/{}", policyId, policyVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.DELETE);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+\r
+\r
+    private enum Target {\r
+        POLICY,\r
+        POLICY_TYPE,\r
+        OTHER\r
+    }\r
+\r
+    private enum Result {\r
+        SUCCESS,\r
+        FAILURE\r
+    }\r
+\r
+    private enum HttpMethod {\r
+        POST,\r
+        GET,\r
+        DELETE\r
+    }\r
+\r
+    private void updateApiStatisticsCounter(Target target, Result result, HttpMethod http) {\r
+\r
+        var mgr = ApiStatisticsManager.getInstance();\r
+        mgr.updateTotalApiCallCount();\r
+\r
+        switch (target) {\r
+            case POLICY:\r
+                updatePolicyStats(result, http);\r
+                break;\r
+            case POLICY_TYPE:\r
+                updatePolicyTypeStats(result, http);\r
+                break;\r
+            default:\r
+                mgr.updateApiCallSuccessCount();\r
+                break;\r
+        }\r
+    }\r
+\r
+    private void updatePolicyStats(Result result, HttpMethod http) {\r
+        var mgr = ApiStatisticsManager.getInstance();\r
+\r
+        if (result == Result.SUCCESS) {\r
+            switch (http) {\r
+                case GET:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    mgr.updateTotalPolicyGetCount();\r
+                    mgr.updatePolicyGetSuccessCount();\r
+                    break;\r
+                case POST:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    mgr.updateTotalPolicyPostCount();\r
+                    mgr.updatePolicyPostSuccessCount();\r
+                    break;\r
+                case DELETE:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    mgr.updateTotalPolicyDeleteCount();\r
+                    mgr.updatePolicyDeleteSuccessCount();\r
+                    break;\r
+                default:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    break;\r
+            }\r
+        } else {\r
+            switch (http) {\r
+                case GET:\r
+                    mgr.updateApiCallFailureCount();\r
+                    mgr.updateTotalPolicyGetCount();\r
+                    mgr.updatePolicyGetFailureCount();\r
+                    break;\r
+                case POST:\r
+                    mgr.updateApiCallFailureCount();\r
+                    mgr.updateTotalPolicyPostCount();\r
+                    mgr.updatePolicyPostFailureCount();\r
+                    break;\r
+                case DELETE:\r
+                    mgr.updateApiCallFailureCount();\r
+                    mgr.updateTotalPolicyDeleteCount();\r
+                    mgr.updatePolicyDeleteFailureCount();\r
+                    break;\r
+                default:\r
+                    mgr.updateApiCallFailureCount();\r
+                    break;\r
+            }\r
+        }\r
+    }\r
+\r
+    private void updatePolicyTypeStats(Result result, HttpMethod http) {\r
+        var mgr = ApiStatisticsManager.getInstance();\r
+\r
+        if (result == Result.SUCCESS) {\r
+            switch (http) {\r
+                case GET:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    mgr.updateTotalPolicyTypeGetCount();\r
+                    mgr.updatePolicyTypeGetSuccessCount();\r
+                    break;\r
+                case POST:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    mgr.updateTotalPolicyTypePostCount();\r
+                    mgr.updatePolicyTypePostSuccessCount();\r
+                    break;\r
+                case DELETE:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    mgr.updateTotalPolicyTypeDeleteCount();\r
+                    mgr.updatePolicyTypeDeleteSuccessCount();\r
+                    break;\r
+                default:\r
+                    mgr.updateApiCallSuccessCount();\r
+                    break;\r
+            }\r
+        } else {\r
+            switch (http) {\r
+                case GET:\r
+                    mgr.updateApiCallFailureCount();\r
+                    mgr.updateTotalPolicyTypeGetCount();\r
+                    mgr.updatePolicyTypeGetFailureCount();\r
+                    break;\r
+                case POST:\r
+                    mgr.updateApiCallFailureCount();\r
+                    mgr.updateTotalPolicyTypePostCount();\r
+                    mgr.updatePolicyTypePostFailureCount();\r
+                    break;\r
+                case DELETE:\r
+                    mgr.updateApiCallFailureCount();\r
+                    mgr.updateTotalPolicyTypeDeleteCount();\r
+                    mgr.updatePolicyTypeDeleteFailureCount();\r
+                    break;\r
+                default:\r
+                    mgr.updateApiCallFailureCount();\r
+                    break;\r
+            }\r
+        }\r
+    }\r
+}\r