otf-service-api/src/main/java/org/oran/otf/api/handler/CamundaProcessExecutionHandler.java

   1 /*  Copyright (c) 2019 AT&T Intellectual Property.                             #\r
   2 #                                                                              #\r
   3 #   Licensed under the Apache License, Version 2.0 (the "License");            #\r
   4 #   you may not use this file except in compliance with the License.           #\r
   5 #   You may obtain a copy of the License at                                    #\r
   6 #                                                                              #\r
   7 #       http://www.apache.org/licenses/LICENSE-2.0                             #\r
   8 #                                                                              #\r
   9 #   Unless required by applicable law or agreed to in writing, software        #\r
  10 #   distributed under the License is distributed on an "AS IS" BASIS,          #\r
  11 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #\r
  12 #   See the License for the specific language governing permissions and        #\r
  13 #   limitations under the License.                                             #\r
  14 ##############################################################################*/\r
  15 \r
  16 \r
  17 package org.oran.otf.api.handler;\r
  18 \r
  19 import org.oran.otf.api.Utilities;\r
  20 import org.oran.otf.api.Utilities.LogLevel;\r
  21 import org.oran.otf.common.model.TestExecution;\r
  22 import org.oran.otf.common.model.local.OTFApiResponse;\r
  23 import org.oran.otf.common.model.local.WorkflowRequest;\r
  24 import org.oran.otf.common.utility.gson.Convert;\r
  25 import org.oran.otf.common.utility.http.ResponseUtility;\r
  26 import com.fasterxml.jackson.core.type.TypeReference;\r
  27 import com.fasterxml.jackson.databind.ObjectMapper;\r
  28 import javax.ws.rs.core.MediaType;\r
  29 import javax.ws.rs.core.Response;\r
  30 import org.apache.http.HttpEntity;\r
  31 import org.apache.http.HttpResponse;\r
  32 import org.apache.http.conn.HttpHostConnectException;\r
  33 import org.apache.http.util.EntityUtils;\r
  34 import org.slf4j.Logger;\r
  35 import org.slf4j.LoggerFactory;\r
  36 import org.springframework.stereotype.Component;\r
  37 \r
  38 @Component\r
  39 public class CamundaProcessExecutionHandler {\r
  40   private static final Logger logger =\r
  41       LoggerFactory.getLogger(CamundaProcessExecutionHandler.class);\r
  42 \r
  43   private CamundaProcessExecutionHandler() {\r
  44     // prevent instantiation\r
  45   }\r
  46 \r
  47   public Response startProcessInstance(WorkflowRequest request) throws Exception {\r
  48     try {\r
  49       //      if (!Utilities.Camunda.isCamundaOnline()) {\r
  50       //        Utilities.Http.BuildResponse.internalServerErrorWithMessage(\r
  51       //            "Unable to start process instance because the test control unit is\r
  52       // unavailable.");\r
  53       //      }\r
  54 \r
  55       // Read necessary environment variables - Avoiding using Spring dependencies (@Value)\r
  56       String host = System.getenv("otf.camunda.host");\r
  57       String path = System.getenv("otf.camunda.uri.execute-test");\r
  58       int port = Utilities.TryGetEnvironmentVariable("otf.camunda.port");\r
  59 \r
  60       if (!Utilities.isHostValid(host)) {\r
  61         logger.error(String.format("Host (%s) must use either the http or https protocol.", host));\r
  62         return null;\r
  63       }\r
  64 \r
  65       if (!Utilities.isPortValid(port)) {\r
  66         logger.error(\r
  67             String.format(\r
  68                 "Invalid port (%s) specified as environment variable 'otf.camunda.port'.",\r
  69                 System.getenv("otf.camunda.port")));\r
  70         return null;\r
  71       }\r
  72 \r
  73       // Form the URL\r
  74       String postUrl = String.format("%s:%s/%s", host, port, path);\r
  75 \r
  76       // Send and store the response\r
  77       HttpResponse response = Utilities.Http.httpPostJsonUsingAAF(postUrl, request.toString());\r
  78       // Get the entity and attempt to convert it to a TestExecution object.\r
  79       HttpEntity entity = response.getEntity();\r
  80       String rawEntity = EntityUtils.toString(entity);\r
  81       ObjectMapper mapper = new ObjectMapper();\r
  82       OTFApiResponse otfApiResponse = mapper.readValue(rawEntity, OTFApiResponse.class);\r
  83 \r
  84       if (otfApiResponse.getStatusCode() == 400) {\r
  85         return Response.status(400)\r
  86             .type(MediaType.APPLICATION_JSON_TYPE)\r
  87             .entity(otfApiResponse.toString())\r
  88             .build();\r
  89       }\r
  90 \r
  91       String jsonMessage = otfApiResponse.getMessage();\r
  92       TestExecution testExecution =\r
  93           Convert.jsonToObject(jsonMessage, new TypeReference<TestExecution>() {});\r
  94       return Response.status(otfApiResponse.getStatusCode())\r
  95           .entity(testExecution.toString())\r
  96           .build();\r
  97 \r
  98     } catch (HttpHostConnectException e) {\r
  99       return ResponseUtility.Build.serviceUnavailableWithMessage(e.getMessage());\r
 100     } catch (Exception e) {\r
 101       Utilities.printStackTrace(e, LogLevel.ERROR);\r
 102       return ResponseUtility.Build.internalServerError();\r
 103     }\r
 104   }\r
 105 }\r