added svcapi ui and camunda code
[it/otf.git] / otf-service-api / src / main / java / org / oran / otf / api / handler / CamundaProcessExecutionHandler.java
diff --git a/otf-service-api/src/main/java/org/oran/otf/api/handler/CamundaProcessExecutionHandler.java b/otf-service-api/src/main/java/org/oran/otf/api/handler/CamundaProcessExecutionHandler.java
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+/*  Copyright (c) 2019 AT&T Intellectual Property.                             #\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
+\r
+\r
+package org.oran.otf.api.handler;\r
+\r
+import org.oran.otf.api.Utilities;\r
+import org.oran.otf.api.Utilities.LogLevel;\r
+import org.oran.otf.common.model.TestExecution;\r
+import org.oran.otf.common.model.local.OTFApiResponse;\r
+import org.oran.otf.common.model.local.WorkflowRequest;\r
+import org.oran.otf.common.utility.gson.Convert;\r
+import org.oran.otf.common.utility.http.ResponseUtility;\r
+import com.fasterxml.jackson.core.type.TypeReference;\r
+import com.fasterxml.jackson.databind.ObjectMapper;\r
+import javax.ws.rs.core.MediaType;\r
+import javax.ws.rs.core.Response;\r
+import org.apache.http.HttpEntity;\r
+import org.apache.http.HttpResponse;\r
+import org.apache.http.conn.HttpHostConnectException;\r
+import org.apache.http.util.EntityUtils;\r
+import org.slf4j.Logger;\r
+import org.slf4j.LoggerFactory;\r
+import org.springframework.stereotype.Component;\r
+\r
+@Component\r
+public class CamundaProcessExecutionHandler {\r
+  private static final Logger logger =\r
+      LoggerFactory.getLogger(CamundaProcessExecutionHandler.class);\r
+\r
+  private CamundaProcessExecutionHandler() {\r
+    // prevent instantiation\r
+  }\r
+\r
+  public Response startProcessInstance(WorkflowRequest request) throws Exception {\r
+    try {\r
+      //      if (!Utilities.Camunda.isCamundaOnline()) {\r
+      //        Utilities.Http.BuildResponse.internalServerErrorWithMessage(\r
+      //            "Unable to start process instance because the test control unit is\r
+      // unavailable.");\r
+      //      }\r
+\r
+      // Read necessary environment variables - Avoiding using Spring dependencies (@Value)\r
+      String host = System.getenv("otf.camunda.host");\r
+      String path = System.getenv("otf.camunda.uri.execute-test");\r
+      int port = Utilities.TryGetEnvironmentVariable("otf.camunda.port");\r
+\r
+      if (!Utilities.isHostValid(host)) {\r
+        logger.error(String.format("Host (%s) must use either the http or https protocol.", host));\r
+        return null;\r
+      }\r
+\r
+      if (!Utilities.isPortValid(port)) {\r
+        logger.error(\r
+            String.format(\r
+                "Invalid port (%s) specified as environment variable 'otf.camunda.port'.",\r
+                System.getenv("otf.camunda.port")));\r
+        return null;\r
+      }\r
+\r
+      // Form the URL\r
+      String postUrl = String.format("%s:%s/%s", host, port, path);\r
+\r
+      // Send and store the response\r
+      HttpResponse response = Utilities.Http.httpPostJsonUsingAAF(postUrl, request.toString());\r
+      // Get the entity and attempt to convert it to a TestExecution object.\r
+      HttpEntity entity = response.getEntity();\r
+      String rawEntity = EntityUtils.toString(entity);\r
+      ObjectMapper mapper = new ObjectMapper();\r
+      OTFApiResponse otfApiResponse = mapper.readValue(rawEntity, OTFApiResponse.class);\r
+\r
+      if (otfApiResponse.getStatusCode() == 400) {\r
+        return Response.status(400)\r
+            .type(MediaType.APPLICATION_JSON_TYPE)\r
+            .entity(otfApiResponse.toString())\r
+            .build();\r
+      }\r
+\r
+      String jsonMessage = otfApiResponse.getMessage();\r
+      TestExecution testExecution =\r
+          Convert.jsonToObject(jsonMessage, new TypeReference<TestExecution>() {});\r
+      return Response.status(otfApiResponse.getStatusCode())\r
+          .entity(testExecution.toString())\r
+          .build();\r
+\r
+    } catch (HttpHostConnectException e) {\r
+      return ResponseUtility.Build.serviceUnavailableWithMessage(e.getMessage());\r
+    } catch (Exception e) {\r
+      Utilities.printStackTrace(e, LogLevel.ERROR);\r
+      return ResponseUtility.Build.internalServerError();\r
+    }\r
+  }\r
+}\r