bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/activity/ExecuteActivity.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Modifications Copyright (c) 2019 Samsung
   8  * ================================================================================
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.so.bpmn.infrastructure.activity;
  24
  25 import java.util.HashMap;
  26 import java.util.Map;
  27 import java.util.UUID;
  28
  29 import org.camunda.bpm.engine.RuntimeService;
  30 import org.camunda.bpm.engine.delegate.DelegateExecution;
  31 import org.camunda.bpm.engine.delegate.JavaDelegate;
  32 import org.camunda.bpm.engine.runtime.ProcessInstanceWithVariables;
  33 import org.camunda.bpm.engine.variable.VariableMap;
  34 import org.onap.so.bpmn.core.WorkflowException;
  35 import org.onap.so.bpmn.servicedecomposition.entities.BuildingBlock;
  36 import org.onap.so.bpmn.servicedecomposition.entities.ExecuteBuildingBlock;
  37 import org.onap.so.bpmn.servicedecomposition.entities.WorkflowResourceIds;
  38 import org.onap.so.client.exception.ExceptionBuilder;
  39 import org.onap.so.logger.ErrorCode;
  40 import org.onap.so.logger.MessageEnum;
  41 import org.onap.so.serviceinstancebeans.RequestDetails;
  42 import org.onap.so.serviceinstancebeans.ServiceInstancesRequest;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45 import org.springframework.beans.factory.annotation.Autowired;
  46 import org.springframework.stereotype.Component;
  47
  48 import com.fasterxml.jackson.databind.ObjectMapper;
  49
  50 @Component("ExecuteActivity")
  51 public class ExecuteActivity implements JavaDelegate {
  52
  53         private static final Logger logger = LoggerFactory.getLogger(ExecuteActivity.class);
  54         private static final String G_BPMN_REQUEST = "bpmnRequest";
  55         private static final String VNF_TYPE = "vnfType";
  56         private static final String G_ACTION = "requestAction";
  57         private static final String G_REQUEST_ID = "mso-request-id";
  58         private static final String VNF_ID = "vnfId";
  59         private static final String SERVICE_INSTANCE_ID = "serviceInstanceId";
  60
  61         private static final String SERVICE_TASK_IMPLEMENTATION_ATTRIBUTE = "implementation";
  62         private static final String ACTIVITY_PREFIX = "activity:";
  63
  64         private ObjectMapper mapper = new ObjectMapper();
  65
  66         @Autowired
  67         private RuntimeService runtimeService;
  68         @Autowired
  69         private ExceptionBuilder exceptionBuilder;
  70
  71         @Override
  72         public void execute(DelegateExecution execution) throws Exception {
  73                 final String requestId = (String) execution.getVariable(G_REQUEST_ID);
  74
  75                 try {
  76                         final String implementationString = execution.getBpmnModelElementInstance().getAttributeValue(SERVICE_TASK_IMPLEMENTATION_ATTRIBUTE);
  77                         logger.debug("activity implementation String: {}", implementationString);
  78                         if (!implementationString.startsWith(ACTIVITY_PREFIX)) {
  79                                 buildAndThrowException(execution, "Implementation attribute has a wrong format");
  80                         }
  81                         String activityName = implementationString.replaceFirst(ACTIVITY_PREFIX, "");
  82                         logger.info("activityName is: {}", activityName);
  83
  84                         BuildingBlock buildingBlock = buildBuildingBlock(activityName);
  85                         ExecuteBuildingBlock executeBuildingBlock = buildExecuteBuildingBlock(execution, requestId, buildingBlock);
  86
  87                         Map<String, Object> variables = new HashMap<>();
  88                         variables.put("buildingBlock", executeBuildingBlock);
  89                         variables.put("mso-request-id", requestId);
  90                         variables.put("retryCount", 1);
  91                         variables.put("aLaCarte", true);
  92
  93                     ProcessInstanceWithVariables buildingBlockResult = runtimeService.createProcessInstanceByKey("ExecuteBuildingBlock").setVariables(variables).executeWithVariablesInReturn();
  94                         VariableMap variableMap = buildingBlockResult.getVariables();
  95
  96                         WorkflowException workflowException = (WorkflowException) variableMap.get("WorklfowException");
  97                         if (workflowException != null) {
  98                                 logger.error("Workflow exception is: {}", workflowException.getErrorMessage());
  99                         }
 100                         execution.setVariable("WorkflowException", workflowException);
 101                 }
 102                 catch (Exception e) {
 103                         buildAndThrowException(execution, e.getMessage());
 104                 }
 105         }
 106
 107         protected BuildingBlock buildBuildingBlock(String activityName) {
 108                 BuildingBlock buildingBlock = new BuildingBlock();
 109                 buildingBlock.setBpmnFlowName(activityName);
 110                 buildingBlock.setMsoId(UUID.randomUUID().toString());
 111                 buildingBlock.setKey("");
 112                 buildingBlock.setIsVirtualLink(false);
 113                 buildingBlock.setVirtualLinkKey("");
 114                 return buildingBlock;
 115         }
 116
 117         protected ExecuteBuildingBlock buildExecuteBuildingBlock(DelegateExecution execution, String requestId,
 118                         BuildingBlock buildingBlock) throws Exception {
 119                 ExecuteBuildingBlock executeBuildingBlock = new ExecuteBuildingBlock();
 120                 String bpmnRequest = (String) execution.getVariable(G_BPMN_REQUEST);
 121                 ServiceInstancesRequest sIRequest = mapper.readValue(bpmnRequest, ServiceInstancesRequest.class);
 122                 RequestDetails requestDetails = sIRequest.getRequestDetails();
 123                 executeBuildingBlock.setaLaCarte(true);
 124                 executeBuildingBlock.setRequestAction((String) execution.getVariable(G_ACTION));
 125                 executeBuildingBlock.setResourceId((String) execution.getVariable(VNF_ID));
 126                 executeBuildingBlock.setVnfType((String) execution.getVariable(VNF_TYPE));
 127                 WorkflowResourceIds workflowResourceIds = new WorkflowResourceIds();
 128                 workflowResourceIds.setServiceInstanceId((String) execution.getVariable(SERVICE_INSTANCE_ID));
 129                 workflowResourceIds.setVnfId((String) execution.getVariable(VNF_ID));
 130                 executeBuildingBlock.setWorkflowResourceIds(workflowResourceIds);
 131                 executeBuildingBlock.setRequestId(requestId);
 132                 executeBuildingBlock.setBuildingBlock(buildingBlock);
 133                 executeBuildingBlock.setRequestDetails(requestDetails);
 134                 return executeBuildingBlock;
 135         }
 136
 137         protected void buildAndThrowException(DelegateExecution execution, String msg, Exception ex) {
 138                 logger.error("{} {} {} {} {}", MessageEnum.BPMN_GENERAL_EXCEPTION_ARG.toString(), msg, "BPMN",
 139                         ErrorCode.UnknownError.getValue(), msg, ex);
 140                 execution.setVariable("ExecuteActivityErrorMessage", msg);
 141                 exceptionBuilder.buildAndThrowWorkflowException(execution, 7000, msg);
 142         }
 143
 144         protected void buildAndThrowException(DelegateExecution execution, String msg) {
 145                 logger.error(msg);
 146                 execution.setVariable("ExecuteActuvityErrorMessage", msg);
 147                 exceptionBuilder.buildAndThrowWorkflowException(execution, 7000, msg);
 148         }
 149 }