Created a new simplified API for creating policies
[policy/api.git] / main / src / main / java / org / onap / policy / api / main / rest / ApiRestController.java
index 9ec97bd..67baa8a 100644 (file)
@@ -36,6 +36,8 @@ import io.swagger.annotations.Info;
 import io.swagger.annotations.ResponseHeader;\r
 import io.swagger.annotations.SecurityDefinition;\r
 import io.swagger.annotations.SwaggerDefinition;\r
+import java.util.List;\r
+import java.util.Map;\r
 import java.util.UUID;\r
 import javax.ws.rs.Consumes;\r
 import javax.ws.rs.DELETE;\r
@@ -45,24 +47,32 @@ import javax.ws.rs.POST;
 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.MediaType;\r
 import javax.ws.rs.core.Response;\r
-import javax.ws.rs.core.Response.ResponseBuilder;\r
+import org.apache.commons.lang3.tuple.Pair;\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.models.tosca.concepts.ToscaServiceTemplate;\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.ToscaPolicy;\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(MediaType.APPLICATION_JSON)\r
-@Consumes(MediaType.APPLICATION_JSON)\r
+@Produces({"application/json", "application/yaml"})\r
+@Consumes({"application/json", "application/yaml"})\r
 @SwaggerDefinition(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
@@ -81,7 +91,9 @@ import org.onap.policy.models.tosca.concepts.ToscaServiceTemplate;
         }),\r
         schemes = { SwaggerDefinition.Scheme.HTTP, SwaggerDefinition.Scheme.HTTPS },\r
         securityDefinition = @SecurityDefinition(basicAuthDefinitions = { @BasicAuthDefinition(key = "basicAuth") }))\r
-public class ApiRestController {\r
+public class ApiRestController extends CommonRestController {\r
+\r
+    private static final Logger LOGGER = LoggerFactory.getLogger(ApiRestController.class);\r
 \r
     /**\r
      * Retrieves the healthcheck status of the API component.\r
@@ -125,8 +137,9 @@ public class ApiRestController {
         })\r
     public Response getHealthCheck(\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new HealthCheckProvider().performHealthCheck()).build();\r
+\r
+        updateApiStatisticsCounter(Target.OTHER, Result.SUCCESS, HttpMethod.GET);\r
+        return makeOkResponse(requestId, new HealthCheckProvider().performHealthCheck());\r
     }\r
 \r
     /**\r
@@ -171,8 +184,10 @@ public class ApiRestController {
         })\r
     public Response getStatistics(\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new StatisticsProvider().fetchCurrentStatistics()).build();\r
+\r
+        updateApiStatisticsCounter(Target.OTHER, Result.SUCCESS, HttpMethod.GET);\r
+\r
+        return makeOkResponse(requestId, new StatisticsProvider().fetchCurrentStatistics());\r
     }\r
 \r
     /**\r
@@ -217,8 +232,16 @@ public class ApiRestController {
         })\r
     public Response getAllPolicyTypes(\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyTypeProvider().fetchPolicyTypes(null, null)).build();\r
+\r
+        try (PolicyTypeProvider 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.error("GET /policytypes", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
@@ -267,8 +290,16 @@ public class ApiRestController {
     public Response getAllVersionsOfPolicyType(\r
             @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyTypeProvider().fetchPolicyTypes(policyTypeId, null)).build();\r
+\r
+        try (PolicyTypeProvider 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.error("GET /policytypes/{}", policyTypeId, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
@@ -319,31 +350,30 @@ public class ApiRestController {
             @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("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyTypeProvider().fetchPolicyTypes(policyTypeId, versionId)).build();\r
+\r
+        try (PolicyTypeProvider 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.error("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
-     * Creates a new policy type.\r
+     * Retrieves latest version of a particular policy type.\r
      *\r
-     * @param body the body of policy type following TOSCA definition\r
+     * @param policyTypeId the ID of specified policy type\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",\r
-            notes = "Client should provide TOSCA body of the new policy type",\r
-            authorizations = @Authorization(value = "basicAuth"),\r
-            tags = { "PolicyType", },\r
-            extensions = {\r
-                    @Extension(name = "interface info", properties = {\r
-                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
-                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
-                    })\r
-            })\r
-    @ApiResponses(value = {\r
-            @ApiResponse(code = 201, message = "Resource successfully created",\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",\r
+            response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
                                     description = "Used to request or communicate a MINOR version back from the client"\r
@@ -360,42 +390,50 @@ public class ApiRestController {
                     @ResponseHeader(name = "X-ONAP-RequestID",\r
                                     description = "Used to track REST transactions for logging purpose",\r
                                     response = UUID.class)\r
-            }),\r
-            @ApiResponse(code = 400, message = "Invalid Body"),\r
+            },\r
+            authorizations = @Authorization(value = "basicAuth"),\r
+            tags = { "PolicyType", },\r
+            extensions = {\r
+                    @Extension(name = "interface info", properties = {\r
+                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
+                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
+                    })\r
+            })\r
+    @ApiResponses(value = {\r
             @ApiResponse(code = 401, message = "Authentication Error"),\r
             @ApiResponse(code = 403, message = "Authorization Error"),\r
+            @ApiResponse(code = 404, message = "Resource Not Found"),\r
             @ApiResponse(code = 500, message = "Internal Server Error")\r
         })\r
-    public Response createPolicyType(\r
-            @ApiParam(value = "Entity body of policy type", required = true) ToscaServiceTemplate body,\r
+    public Response getLatestVersionOfPolicyType(\r
+            @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyTypeProvider().createPolicyType(body)).build();\r
+\r
+        try (PolicyTypeProvider 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.error("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
-     * Deletes all versions of a particular policy type.\r
+     * Creates a new policy type.\r
      *\r
-     * @param policyTypeId the ID of specified policy type\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
-    @DELETE\r
-    @Path("/policytypes/{policyTypeId}")\r
-    @ApiOperation(value = "Delete all versions 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
+    @POST\r
+    @Path("/policytypes")\r
+    @ApiOperation(value = "Create a new policy type",\r
+            notes = "Client should provide TOSCA body of the new policy type",\r
             authorizations = @Authorization(value = "basicAuth"),\r
             tags = { "PolicyType", },\r
-            extensions = {\r
-                    @Extension(name = "interface info", properties = {\r
-                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
-                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
-                    })\r
-            })\r
-    @ApiResponses(value = {\r
-            @ApiResponse(code = 204, message = "Resources successfully deleted, no content returned",\r
+            response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
                                     description = "Used to request or communicate a MINOR version back from the client"\r
@@ -412,18 +450,36 @@ public class ApiRestController {
                     @ResponseHeader(name = "X-ONAP-RequestID",\r
                                     description = "Used to track REST transactions for logging purpose",\r
                                     response = UUID.class)\r
-            }),\r
+            },\r
+            extensions = {\r
+                    @Extension(name = "interface info", properties = {\r
+                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
+                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
+                    })\r
+            })\r
+    @ApiResponses(value = {\r
+            @ApiResponse(code = 400, message = "Invalid Body"),\r
             @ApiResponse(code = 401, message = "Authentication Error"),\r
             @ApiResponse(code = 403, message = "Authorization Error"),\r
-            @ApiResponse(code = 404, message = "Resource Not Found"),\r
-            @ApiResponse(code = 409, message = "Delete Conflict, Rule Violation"),\r
             @ApiResponse(code = 500, message = "Internal Server Error")\r
         })\r
-    public Response deleteAllVersionsOfPolicyType(\r
-            @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+    public Response createPolicyType(\r
+            @ApiParam(value = "Entity body of policy type", required = true) ToscaServiceTemplate body,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyTypeProvider().deletePolicyTypes(policyTypeId, null)).build();\r
+\r
+        if (NetLoggerUtil.getNetworkLogger().isInfoEnabled()) {\r
+            NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST, "/policytypes", toJson(body));\r
+        }\r
+\r
+        try (PolicyTypeProvider 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.error("POST /policytypes", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY_TYPE, Result.FAILURE, HttpMethod.POST);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
@@ -442,14 +498,7 @@ public class ApiRestController {
                   + "The parameterizing TOSCA policies must be deleted first;",\r
             authorizations = @Authorization(value = "basicAuth"),\r
             tags = { "PolicyType", },\r
-            extensions = {\r
-                    @Extension(name = "interface info", properties = {\r
-                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
-                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
-                    })\r
-            })\r
-    @ApiResponses(value = {\r
-            @ApiResponse(code = 204, message = "Resource successfully deleted, no content returned",\r
+            response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
                                     description = "Used to request or communicate a MINOR version back from the client"\r
@@ -466,7 +515,14 @@ public class ApiRestController {
                     @ResponseHeader(name = "X-ONAP-RequestID",\r
                                     description = "Used to track REST transactions for logging purpose",\r
                                     response = UUID.class)\r
-            }),\r
+            },\r
+            extensions = {\r
+                    @Extension(name = "interface info", properties = {\r
+                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
+                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
+                    })\r
+            })\r
+    @ApiResponses(value = {\r
             @ApiResponse(code = 401, message = "Authentication Error"),\r
             @ApiResponse(code = 403, message = "Authorization Error"),\r
             @ApiResponse(code = 404, message = "Resource Not Found"),\r
@@ -477,8 +533,14 @@ public class ApiRestController {
             @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("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyTypeProvider().deletePolicyTypes(policyTypeId, versionId)).build();\r
+\r
+        try (PolicyTypeProvider policyTypeProvider = new PolicyTypeProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyTypeProvider.deletePolicyType(policyTypeId, versionId);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("DELETE /policytypes/{}/versions/{}", policyTypeId, versionId, pfme);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
@@ -530,8 +592,17 @@ public class ApiRestController {
             @PathParam("policyTypeVersion")\r
                 @ApiParam(value = "Version of policy type", required = true) String policyTypeVersion,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().fetchPolicies(policyTypeId, policyTypeVersion, null, null)).build();\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                    policyProvider.fetchPolicies(policyTypeId, policyTypeVersion, null, null);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("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
@@ -585,8 +656,18 @@ public class ApiRestController {
                 @ApiParam(value = "Version of policy type", required = true) String policyTypeVersion,\r
             @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().fetchPolicies(policyTypeId, policyTypeVersion, policyId, null)).build();\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyProvider\r
+                    .fetchPolicies(policyTypeId, policyTypeVersion, policyId, null);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("/policytypes/{}/versions/{}/policies/{}", policyTypeId, policyTypeVersion, policyId,\r
+                    pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
@@ -642,13 +723,22 @@ public class ApiRestController {
             @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("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().fetchPolicies(policyTypeId, policyTypeVersion,\r
-                                                       policyId, policyVersion)).build();\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyProvider\r
+                    .fetchPolicies(policyTypeId, policyTypeVersion, policyId, policyVersion);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("GET /policytypes/{}/versions/{}/policies/{}/versions/{}", policyTypeId,\r
+                    policyTypeVersion, policyId, policyVersion, pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.GET);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
-     * Retrieves either latest or deployed version of a particular policy depending on query parameter.\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
@@ -657,9 +747,9 @@ public class ApiRestController {
      * @return the Response object containing the results of the API operation\r
      */\r
     @GET\r
-    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}/versions")\r
-    @ApiOperation(value = "Retrieve either latest or deployed version of a particular policy depending on query param",\r
-            notes = "Returns either latest or deployed version of specified policy depending on query param",\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",\r
             response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
@@ -692,33 +782,57 @@ public class ApiRestController {
             @ApiResponse(code = 404, message = "Resource Not Found"),\r
             @ApiResponse(code = 500, message = "Internal Server Error")\r
         })\r
-    public Response getEitherLatestOrDeployedVersionOfPolicy(\r
+    public Response getLatestVersionOfPolicy(\r
             @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
             @PathParam("policyTypeVersion")\r
                 @ApiParam(value = "Version of policy type", required = true) String policyTypeVersion,\r
             @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
-            @QueryParam("type")\r
-                @ApiParam(value = "Version that can only be 'latest' or 'deployed'", required = true) String type,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().fetchPolicies(policyTypeId, policyTypeVersion, policyId, type)).build();\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate =\r
+                    policyProvider.fetchLatestPolicies(policyTypeId, policyTypeVersion, policyId);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("GET /policytypes/{}/versions/{}/policies/{}/versions/latest", policyTypeId,\r
+                    policyTypeVersion, 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
+     * Retrieves deployed versions of a particular policy in PDP groups.\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
+     * @param policyId the ID of specified policy\r
      *\r
      * @return the Response object containing the results of the API operation\r
      */\r
-    @POST\r
-    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies")\r
-    @Consumes("application/json")\r
-    @Produces("application/json")\r
-    @ApiOperation(value = "Create a new policy for a policy type version",\r
-            notes = "Client should provide TOSCA body of the new policy",\r
+    @GET\r
+    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}/versions/deployed")\r
+    @ApiOperation(value = "Retrieve deployed versions of a particular policy in pdp groups",\r
+            notes = "Returns deployed versions of specified policy in pdp groups",\r
+            response = ToscaPolicy.class, responseContainer = "List",\r
+            responseHeaders = {\r
+                    @ResponseHeader(name = "X-MinorVersion",\r
+                                    description = "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
+                                    response = String.class),\r
+                    @ResponseHeader(name = "X-PatchVersion",\r
+                                    description = "Used only to communicate a PATCH version in a response for"\r
+                                                + " troubleshooting purposes only, and will not be provided by"\r
+                                                + " the client on request",\r
+                                    response = String.class),\r
+                    @ResponseHeader(name = "X-LatestVersion",\r
+                                    description = "Used only to communicate an API's latest version",\r
+                                    response = String.class),\r
+                    @ResponseHeader(name = "X-ONAP-RequestID",\r
+                                    description = "Used to track REST transactions for logging purpose",\r
+                                    response = UUID.class)\r
+            },\r
             authorizations = @Authorization(value = "basicAuth"),\r
             tags = { "Policy", },\r
             extensions = {\r
@@ -728,7 +842,47 @@ public class ApiRestController {
                     })\r
             })\r
     @ApiResponses(value = {\r
-            @ApiResponse(code = 201, message = "Resource successfully created",\r
+            @ApiResponse(code = 401, message = "Authentication Error"),\r
+            @ApiResponse(code = 403, message = "Authorization Error"),\r
+            @ApiResponse(code = 404, message = "Resource Not Found"),\r
+            @ApiResponse(code = 500, message = "Internal Server Error")\r
+        })\r
+    public Response getDeployedVersionsOfPolicy(\r
+            @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
+            @PathParam("policyTypeVersion")\r
+                @ApiParam(value = "Version of policy type", required = true) String policyTypeVersion,\r
+            @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
+            @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            Map<Pair<String, String>, List<ToscaPolicy>> deployedPolicies = policyProvider\r
+                    .fetchDeployedPolicies(policyTypeId, policyTypeVersion, policyId);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.GET);\r
+            return makeOkResponse(requestId, deployedPolicies);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("GET /policytypes/{}/versions/{}/policies/{}/versions/deployed", policyTypeId,\r
+                    policyTypeVersion, 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 = "basicAuth"),\r
+            tags = { "Policy", },\r
+            response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
                                     description = "Used to request or communicate a MINOR version back from the client"\r
@@ -745,7 +899,14 @@ public class ApiRestController {
                     @ResponseHeader(name = "X-ONAP-RequestID",\r
                                     description = "Used to track REST transactions for logging purpose",\r
                                     response = UUID.class)\r
-            }),\r
+            },\r
+            extensions = {\r
+                    @Extension(name = "interface info", properties = {\r
+                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
+                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
+                    })\r
+            })\r
+    @ApiResponses(value = {\r
             @ApiResponse(code = 400, message = "Invalid Body"),\r
             @ApiResponse(code = 401, message = "Authentication Error"),\r
             @ApiResponse(code = 403, message = "Authorization Error"),\r
@@ -758,33 +919,39 @@ public class ApiRestController {
                 @ApiParam(value = "Version of policy type", required = true) String policyTypeVersion,\r
             @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId,\r
             @ApiParam(value = "Entity body of policy", required = true) ToscaServiceTemplate body) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().createPolicy(policyTypeId, policyTypeVersion, body)).build();\r
+\r
+        if (NetLoggerUtil.getNetworkLogger().isInfoEnabled()) {\r
+            NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST,\r
+                            "/policytypes/" + policyTypeId + "/versions/" + policyTypeVersion + "/policies",\r
+                            toJson(body));\r
+        }\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyProvider\r
+                    .createPolicy(policyTypeId, policyTypeVersion, body);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.SUCCESS, HttpMethod.POST);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("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 all versions of a particular policy.\r
+     * Creates one or more new policies in one call.\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 body the body of policy following TOSCA definition\r
      *\r
      * @return the Response object containing the results of the API operation\r
      */\r
-    @DELETE\r
-    @Path("/policytypes/{policyTypeId}/versions/{policyTypeVersion}/policies/{policyId}")\r
-    @ApiOperation(value = "Delete all versions of a policy",\r
-            notes = "Rule: the version that has been deployed in PDP group(s) cannot be deleted",\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 = "basicAuth"),\r
             tags = { "Policy", },\r
-            extensions = {\r
-                    @Extension(name = "interface info", properties = {\r
-                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
-                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
-                    })\r
-            })\r
-    @ApiResponses(value = {\r
-            @ApiResponse(code = 204, message = "Resources successfully deleted, no content returned",\r
+            response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
                                     description = "Used to request or communicate a MINOR version back from the client"\r
@@ -801,21 +968,37 @@ public class ApiRestController {
                     @ResponseHeader(name = "X-ONAP-RequestID",\r
                                     description = "Used to track REST transactions for logging purpose",\r
                                     response = UUID.class)\r
-            }),\r
+            },\r
+            extensions = {\r
+                    @Extension(name = "interface info", properties = {\r
+                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
+                            @ExtensionProperty(name = "last-mod-release", value = "El Alto")\r
+                    })\r
+            })\r
+    @ApiResponses(value = {\r
+            @ApiResponse(code = 400, message = "Invalid Body"),\r
             @ApiResponse(code = 401, message = "Authentication Error"),\r
             @ApiResponse(code = 403, message = "Authorization Error"),\r
             @ApiResponse(code = 404, message = "Resource Not Found"),\r
-            @ApiResponse(code = 409, message = "Delete Conflict, Rule Violation"),\r
             @ApiResponse(code = 500, message = "Internal Server Error")\r
         })\r
-    public Response deleteAllVersionsOfPolicy(\r
-            @PathParam("policyTypeId") @ApiParam(value = "ID of policy type", required = true) String policyTypeId,\r
-            @PathParam("policyTypeVersion")\r
-                @ApiParam(value = "Version of policy type", required = true) String policyTypeVersion,\r
-            @PathParam("policyId") @ApiParam(value = "ID of policy", required = true) String policyId,\r
-            @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().deletePolicies(policyTypeId, policyTypeVersion, policyId, null)).build();\r
+    public Response createPolicies(\r
+            @HeaderParam("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") 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 (PolicyProvider 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.error("POST /policies", pfme);\r
+            updateApiStatisticsCounter(Target.POLICY, Result.FAILURE, HttpMethod.POST);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
     }\r
 \r
     /**\r
@@ -834,14 +1017,7 @@ public class ApiRestController {
             notes = "Rule: the version that has been deployed in PDP group(s) cannot be deleted",\r
             authorizations = @Authorization(value = "basicAuth"),\r
             tags = { "Policy", },\r
-            extensions = {\r
-                    @Extension(name = "interface info", properties = {\r
-                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
-                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
-                    })\r
-            })\r
-    @ApiResponses(value = {\r
-            @ApiResponse(code = 204, message = "Resource successfully deleted, no content returned",\r
+            response = ToscaServiceTemplate.class,\r
             responseHeaders = {\r
                     @ResponseHeader(name = "X-MinorVersion",\r
                                     description = "Used to request or communicate a MINOR version back from the client"\r
@@ -858,7 +1034,14 @@ public class ApiRestController {
                     @ResponseHeader(name = "X-ONAP-RequestID",\r
                                     description = "Used to track REST transactions for logging purpose",\r
                                     response = UUID.class)\r
-            }),\r
+            },\r
+            extensions = {\r
+                    @Extension(name = "interface info", properties = {\r
+                            @ExtensionProperty(name = "api-version", value = "1.0.0"),\r
+                            @ExtensionProperty(name = "last-mod-release", value = "Dublin")\r
+                    })\r
+            })\r
+    @ApiResponses(value = {\r
             @ApiResponse(code = 401, message = "Authentication Error"),\r
             @ApiResponse(code = 403, message = "Authorization Error"),\r
             @ApiResponse(code = 404, message = "Resource Not Found"),\r
@@ -872,20 +1055,92 @@ public class ApiRestController {
             @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("X-ONAP-RequestID") @ApiParam("RequestID for http transaction") UUID requestId) {\r
-        return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)\r
-            .entity(new PolicyProvider().deletePolicies(policyTypeId, policyTypeVersion,\r
-                                                        policyId, policyVersion)).build();\r
+\r
+        try (PolicyProvider policyProvider = new PolicyProvider()) {\r
+            ToscaServiceTemplate serviceTemplate = policyProvider\r
+                    .deletePolicy(policyTypeId, policyTypeVersion, policyId, policyVersion);\r
+            return makeOkResponse(requestId, serviceTemplate);\r
+        } catch (PfModelException | PfModelRuntimeException pfme) {\r
+            LOGGER.error("DELETE /policytypes/{}/versions/{}/policies/{}/versions/{}", policyTypeId,\r
+                    policyTypeVersion, policyId, policyVersion, pfme);\r
+            return makeErrorResponse(requestId, pfme);\r
+        }\r
+    }\r
+\r
+    private enum Target {\r
+        POLICY, POLICY_TYPE, OTHER\r
+    }\r
+\r
+    private enum Result {\r
+        SUCCESS, FAILURE\r
     }\r
 \r
-    private ResponseBuilder addVersionControlHeaders(ResponseBuilder rb) {\r
-        return rb.header("X-MinorVersion", "0").header("X-PatchVersion", "0").header("X-LatestVersion", "1.0.0");\r
+    private enum HttpMethod {\r
+        POST, GET\r
+    }\r
+\r
+    private void updateApiStatisticsCounter(Target target, Result result, HttpMethod http) {\r
+\r
+        ApiStatisticsManager.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
+                ApiStatisticsManager.updateApiCallSuccessCount();\r
+                break;\r
+        }\r
+    }\r
+\r
+    private void updatePolicyStats(Result result, HttpMethod http) {\r
+        if (result == Result.SUCCESS) {\r
+            if (http == HttpMethod.GET) {\r
+                ApiStatisticsManager.updateApiCallSuccessCount();\r
+                ApiStatisticsManager.updateTotalPolicyGetCount();\r
+                ApiStatisticsManager.updatePolicyGetSuccessCount();\r
+            } else if (http == HttpMethod.POST) {\r
+                ApiStatisticsManager.updateApiCallSuccessCount();\r
+                ApiStatisticsManager.updateTotalPolicyPostCount();\r
+                ApiStatisticsManager.updatePolicyPostSuccessCount();\r
+            }\r
+        } else {\r
+            if (http == HttpMethod.GET) {\r
+                ApiStatisticsManager.updateApiCallFailureCount();\r
+                ApiStatisticsManager.updateTotalPolicyGetCount();\r
+                ApiStatisticsManager.updatePolicyGetFailureCount();\r
+            } else {\r
+                ApiStatisticsManager.updateApiCallFailureCount();\r
+                ApiStatisticsManager.updateTotalPolicyPostCount();\r
+                ApiStatisticsManager.updatePolicyPostFailureCount();\r
+            }\r
+        }\r
     }\r
 \r
-    private ResponseBuilder addLoggingHeaders(ResponseBuilder rb, UUID requestId) {\r
-        if (requestId == null) {\r
-            // Generate a random uuid if client does not embed requestId in rest request\r
-            return rb.header("X-ONAP-RequestID", UUID.randomUUID());\r
+    private void updatePolicyTypeStats(Result result, HttpMethod http) {\r
+        if (result == Result.SUCCESS) {\r
+            if (http == HttpMethod.GET) {\r
+                ApiStatisticsManager.updateApiCallSuccessCount();\r
+                ApiStatisticsManager.updateTotalPolicyTypeGetCount();\r
+                ApiStatisticsManager.updatePolicyTypeGetSuccessCount();\r
+            } else if (http == HttpMethod.POST) {\r
+                ApiStatisticsManager.updateApiCallSuccessCount();\r
+                ApiStatisticsManager.updatePolicyTypePostSuccessCount();\r
+                ApiStatisticsManager.updatePolicyTypePostSuccessCount();\r
+            }\r
+        } else {\r
+            if (http == HttpMethod.GET) {\r
+                ApiStatisticsManager.updateApiCallFailureCount();\r
+                ApiStatisticsManager.updateTotalPolicyTypeGetCount();\r
+                ApiStatisticsManager.updatePolicyTypeGetFailureCount();\r
+            } else {\r
+                ApiStatisticsManager.updateApiCallFailureCount();\r
+                ApiStatisticsManager.updateTotalPolicyTypePostCount();\r
+                ApiStatisticsManager.updatePolicyTypePostFailureCount();\r
+            }\r
         }\r
-        return rb.header("X-ONAP-RequestID", requestId);\r
     }\r
-}\r
+}
\ No newline at end of file