webapp-backend/src/main/java/org/oransc/portal/nonrtric/controlpanel/controller/PolicyController.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 Nordix Foundation
   6  * Modifications Copyright (C) 2020 Nordix Foundation
   7  * %%
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  * ========================LICENSE_END===================================
  20  */
  21 package org.oransc.portal.nonrtric.controlpanel.controller;
  22
  23 import io.swagger.annotations.ApiOperation;
  24
  25 import java.lang.invoke.MethodHandles;
  26
  27 import javax.servlet.http.HttpServletResponse;
  28 import org.oransc.portal.nonrtric.controlpanel.ControlPanelConstants;
  29 import org.oransc.portal.nonrtric.controlpanel.policyagentapi.PolicyAgentApi;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32 import org.springframework.beans.factory.annotation.Autowired;
  33 import org.springframework.http.MediaType;
  34 import org.springframework.http.ResponseEntity;
  35 import org.springframework.security.access.annotation.Secured;
  36 import org.springframework.util.Assert;
  37 import org.springframework.web.bind.annotation.DeleteMapping;
  38 import org.springframework.web.bind.annotation.GetMapping;
  39 import org.springframework.web.bind.annotation.PathVariable;
  40 import org.springframework.web.bind.annotation.PutMapping;
  41 import org.springframework.web.bind.annotation.RequestBody;
  42 import org.springframework.web.bind.annotation.RequestMapping;
  43 import org.springframework.web.bind.annotation.RequestParam;
  44 import org.springframework.web.bind.annotation.RestController;
  45
  46 /**
  47  * Proxies calls from the front end to the Policy agent API.
  48  *
  49  * If a method throws RestClientResponseException, it is handled by
  50  * {@link CustomResponseEntityExceptionHandler#handleProxyMethodException(Exception, org.springframework.web.context.request.WebRequest)}
  51  * which returns status 502. All other exceptions are handled by Spring which
  52  * returns status 500.
  53  */
  54 @RestController
  55 @RequestMapping(value = PolicyController.CONTROLLER_PATH, produces = MediaType.APPLICATION_JSON_VALUE)
  56 public class PolicyController {
  57
  58     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  59
  60     // Publish paths in constants so tests are easy to write
  61     public static final String CONTROLLER_PATH = ControlPanelConstants.ENDPOINT_PREFIX + "/policy";
  62     // Endpoints
  63     public static final String VERSION_METHOD = ControlPanelConstants.VERSION_METHOD;
  64     public static final String POLICY_TYPES_METHOD = "policytypes";
  65     public static final String POLICY_TYPE_ID_NAME = "policy_type_id";
  66     public static final String POLICIES_NAME = "policies";
  67     public static final String POLICY_INSTANCE_ID_NAME = "policy_instance_id";
  68
  69     // Populated by the autowired constructor
  70     private final PolicyAgentApi policyAgentApi;
  71
  72     @Autowired
  73     public PolicyController(final PolicyAgentApi policyAgentApi) {
  74         Assert.notNull(policyAgentApi, "API must not be null");
  75         this.policyAgentApi = policyAgentApi;
  76         logger.debug("ctor: configured with client type {}", policyAgentApi.getClass().getName());
  77     }
  78
  79     /*
  80      * The fields are defined in the Policy Control Typescript interface.
  81      */
  82     @ApiOperation(value = "Gets the policy types from Near Realtime-RIC")
  83     @GetMapping(POLICY_TYPES_METHOD)
  84     @Secured({ControlPanelConstants.ROLE_ADMIN, ControlPanelConstants.ROLE_STANDARD})
  85     public ResponseEntity<String> getAllPolicyTypes(HttpServletResponse response) {
  86         logger.debug("getAllPolicyTypes");
  87         return this.policyAgentApi.getAllPolicyTypes();
  88     }
  89
  90     @ApiOperation(value = "Returns the policy instances for the given policy type.")
  91     @GetMapping(POLICY_TYPES_METHOD + "/{" + POLICY_TYPE_ID_NAME + "}/" + POLICIES_NAME)
  92     @Secured({ControlPanelConstants.ROLE_ADMIN, ControlPanelConstants.ROLE_STANDARD})
  93     public ResponseEntity<String> getPolicyInstances(@PathVariable(POLICY_TYPE_ID_NAME) String policyTypeIdString) {
  94         logger.debug("getPolicyInstances {}", policyTypeIdString);
  95         return this.policyAgentApi.getPolicyInstancesForType(policyTypeIdString);
  96     }
  97
  98     @ApiOperation(value = "Returns a policy instance of a type")
  99     @GetMapping(POLICY_TYPES_METHOD + "/{" + POLICY_TYPE_ID_NAME + "}/" + POLICIES_NAME + "/{" + POLICY_INSTANCE_ID_NAME
 100         + "}")
 101     @Secured({ControlPanelConstants.ROLE_ADMIN, ControlPanelConstants.ROLE_STANDARD})
 102     public ResponseEntity<Object> getPolicyInstance(@PathVariable(POLICY_TYPE_ID_NAME) String policyTypeIdString,
 103         @PathVariable(POLICY_INSTANCE_ID_NAME) String policyInstanceId) {
 104         logger.debug("getPolicyInstance {}:{}", policyTypeIdString, policyInstanceId);
 105         return this.policyAgentApi.getPolicyInstance(policyInstanceId);
 106     }
 107
 108     @ApiOperation(value = "Creates the policy instances for the given policy type.")
 109     @PutMapping(POLICY_TYPES_METHOD + "/{" + POLICY_TYPE_ID_NAME + "}/" + POLICIES_NAME + "/{" + POLICY_INSTANCE_ID_NAME
 110         + "}")
 111     @Secured({ControlPanelConstants.ROLE_ADMIN})
 112     public ResponseEntity<String> putPolicyInstance(@PathVariable(POLICY_TYPE_ID_NAME) String policyTypeIdString,
 113         @RequestParam(name = "ric", required = true) String ric,
 114         @PathVariable(POLICY_INSTANCE_ID_NAME) String policyInstanceId, @RequestBody String instance) {
 115         logger.debug("putPolicyInstance ric: {}, typeId: {}, instanceId: {}, instance: {}", ric, policyTypeIdString,
 116             policyInstanceId, instance);
 117         return this.policyAgentApi.putPolicy(policyTypeIdString, policyInstanceId, instance, ric);
 118     }
 119
 120     @ApiOperation(value = "Deletes the policy instances for the given policy type.")
 121     @DeleteMapping(POLICY_TYPES_METHOD + "/{" + POLICY_TYPE_ID_NAME + "}/" + POLICIES_NAME + "/{"
 122         + POLICY_INSTANCE_ID_NAME + "}")
 123     @Secured({ControlPanelConstants.ROLE_ADMIN})
 124     public ResponseEntity<String> deletePolicyInstance(@PathVariable(POLICY_TYPE_ID_NAME) String policyTypeIdString,
 125         @PathVariable(POLICY_INSTANCE_ID_NAME) String policyInstanceId) {
 126         logger.debug("deletePolicyInstance typeId: {}, instanceId: {}", policyTypeIdString, policyInstanceId);
 127         return this.policyAgentApi.deletePolicy(policyInstanceId);
 128     }
 129
 130     @ApiOperation(value = "Returns the rics supporting the given policy type.")
 131     @GetMapping("/rics")
 132     @Secured({ControlPanelConstants.ROLE_ADMIN, ControlPanelConstants.ROLE_STANDARD})
 133     public ResponseEntity<String> getRicsSupportingType(
 134         @RequestParam(name = "policyType", required = true) String supportingPolicyType) {
 135         logger.debug("getRicsSupportingType {}", supportingPolicyType);
 136
 137         return this.policyAgentApi.getRicsSupportingType(supportingPolicyType);
 138     }
 139 }