gerrit.onap Code Review - cps.git/blob

   1 /*
   2  *  ============LICENSE_START=======================================================
   3  *  Copyright (C) 2024 Nordix Foundation
   4  *  ================================================================================
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.policyexecutor.stub.controller;
  22
  23 import java.util.Locale;
  24 import java.util.regex.Matcher;
  25 import java.util.regex.Pattern;
  26 import org.onap.cps.policyexecutor.stub.api.PolicyExecutorApi;
  27 import org.onap.cps.policyexecutor.stub.model.PolicyExecutionRequest;
  28 import org.onap.cps.policyexecutor.stub.model.PolicyExecutionResponse;
  29 import org.springframework.http.HttpStatus;
  30 import org.springframework.http.HttpStatusCode;
  31 import org.springframework.http.ResponseEntity;
  32 import org.springframework.web.bind.annotation.RequestMapping;
  33 import org.springframework.web.bind.annotation.RestController;
  34
  35 @RestController
  36 @RequestMapping("${rest.api.policy-executor-base-path}")
  37 public class PolicyExecutorStubController implements PolicyExecutorApi {
  38
  39     private final Pattern errorCodePattern = Pattern.compile("(\\d{3})");
  40     private int decisionCounter = 0;
  41
  42     @Override
  43     public ResponseEntity<PolicyExecutionResponse> executePolicyAction(
  44                                                      final String authorization,
  45                                                      final String action,
  46                                                      final PolicyExecutionRequest policyExecutionRequest) {
  47         if (policyExecutionRequest.getPayload().isEmpty()) {
  48             return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
  49         }
  50
  51         final String firstTargetFdn = policyExecutionRequest.getPayload().iterator().next().getTargetFdn();
  52
  53         final Matcher matcher = errorCodePattern.matcher(firstTargetFdn);
  54         if (matcher.find()) {
  55             final int errorCode = Integer.parseInt(matcher.group(1));
  56             return new ResponseEntity<>(HttpStatusCode.valueOf(errorCode));
  57         }
  58
  59         final PolicyExecutionResponse policyExecutionResponse = new PolicyExecutionResponse();
  60         policyExecutionResponse.setDecisionId(String.valueOf(++decisionCounter));
  61
  62         if (firstTargetFdn.toLowerCase(Locale.getDefault()).contains("cps-is-great")) {
  63             policyExecutionResponse.setDecision("permit");
  64         } else {
  65             policyExecutionResponse.setDecision("deny");
  66             policyExecutionResponse.setMessage("Only FDNs containing 'cps-is-great' are permitted");
  67         }
  68         return ResponseEntity.ok(policyExecutionResponse);
  69     }
  70 }