gerrit.onap Code Review - so.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.so.bpmn.common.workflow.service;
  22
  23 import java.util.HashMap;
  24 import java.util.Map;
  25 import java.util.Objects;
  26 import java.util.UUID;
  27
  28 import org.camunda.bpm.engine.RuntimeService;
  29 import org.camunda.bpm.engine.runtime.ProcessInstance;
  30 import org.camunda.bpm.engine.variable.impl.VariableMapImpl;
  31 import org.onap.so.bpmn.common.workflow.context.WorkflowResponse;
  32 import org.onap.so.logger.MsoLogger;
  33 import org.openecomp.mso.bpmn.common.workflow.service.WorkflowProcessorException;
  34 import org.springframework.scheduling.annotation.Async;
  35 import org.springframework.stereotype.Service;
  36
  37 @Service
  38 public class WorkflowProcessor extends ProcessEngineAwareService {
  39
  40         private static final MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.BPEL, WorkflowProcessor.class);
  41         protected static final String logMarker = "[WRKFLOW-RESOURCE]";
  42
  43         @Async
  44         public void startProcess( String processKey, VariableMapImpl variableMap)
  45         {
  46
  47                 long startTime = System.currentTimeMillis();
  48                 Map<String, Object> inputVariables = null;
  49                 String processInstanceId = null;
  50                 try {
  51                         inputVariables = getInputVariables(variableMap);
  52                         // This variable indicates that the flow was invoked asynchronously
  53                         inputVariables.put("isAsyncProcess", "true");
  54
  55                         // Note: this creates a random businessKey if it wasn't specified.
  56                         String businessKey = getBusinessKey(inputVariables);
  57
  58                         msoLogger.debug("***Received MSO startProcessInstanceByKey with processKey: " + processKey
  59                                         + " and variables: " + inputVariables);
  60
  61                         RuntimeService runtimeService = getProcessEngineServices().getRuntimeService();
  62                         ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(processKey, businessKey,
  63                                         inputVariables);
  64                         processInstanceId = processInstance.getId();
  65
  66                         msoLogger.debug(logMarker + "Process " + processKey + ":" + processInstanceId + " "
  67                                         + (processInstance.isEnded() ? "ENDED" : "RUNNING"));
  68                 } catch (Exception e) {
  69
  70                         msoLogger.recordAuditEvent(startTime, MsoLogger.StatusCode.ERROR, MsoLogger.ResponseCode.InternalError,
  71                                         logMarker + "Error in starting the process: " + e.getMessage());
  72
  73                         WorkflowResponse workflowResponse = new WorkflowResponse();
  74                         workflowResponse.setResponse("Error occurred while executing the process: " + e);
  75                         workflowResponse.setProcessInstanceID(processInstanceId);
  76                         workflowResponse.setMessageCode(500);
  77                         workflowResponse.setMessage("Fail");
  78                         throw new WorkflowProcessorException(workflowResponse);
  79                 }
  80         }
  81
  82         // Note: the business key is used to identify the process in unit tests
  83         protected static String getBusinessKey(Map<String, Object> inputVariables) {
  84         return getOrCreate(inputVariables, "mso-business-key");
  85         }
  86
  87
  88         protected static Map<String, Object> getInputVariables(VariableMapImpl variableMap) {
  89                 Map<String, Object> inputVariables = new HashMap<>();
  90                 @SuppressWarnings("unchecked")
  91                 Map<String, Object> vMap = (Map<String, Object>) variableMap.get("variables");
  92                 for (Map.Entry<String, Object> entry : vMap.entrySet()) {
  93                         String vName = entry.getKey();
  94                         Object value = entry.getValue();
  95                         @SuppressWarnings("unchecked")
  96                         Map<String, Object> valueMap = (Map<String,Object>)value; // value, type
  97                         inputVariables.put(vName, valueMap.get("value"));
  98                 }
  99                 return inputVariables;
 100         }
 101
 102     protected static String getOrCreate(Map<String, Object> inputVariables, String key) {
 103         String value = Objects.toString(inputVariables.get(key), null);
 104         if (value == null) {
 105             value = UUID.randomUUID().toString();
 106             inputVariables.put(key, value);
 107         }
 108         return value;
 109     }
 110
 111 }