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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.so.bpmn.common.workflow.service;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.UUID;
import org.camunda.bpm.engine.RuntimeService;
import org.camunda.bpm.engine.runtime.ProcessInstance;
import org.camunda.bpm.engine.variable.impl.VariableMapImpl;
import org.onap.so.bpmn.common.workflow.context.WorkflowResponse;
import org.openecomp.mso.bpmn.common.workflow.service.WorkflowProcessorException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
@Service
public class WorkflowProcessor extends ProcessEngineAwareService {
private static final Logger logger = LoggerFactory.getLogger(WorkflowProcessor.class);
protected static final String logMarker = "[WRKFLOW-RESOURCE]";
@Async
public void startProcess(String processKey, VariableMapImpl variableMap) {
Map<String, Object> inputVariables;
String processInstanceId = null;
try {
inputVariables = getInputVariables(variableMap);
// This variable indicates that the flow was invoked asynchronously
inputVariables.put("isAsyncProcess", "true");
// Note: this creates a random businessKey if it wasn't specified.
String businessKey = getBusinessKey(inputVariables);
logger.debug("***Received MSO startProcessInstanceByKey with processKey: {} and variables: {}", processKey,
inputVariables);
RuntimeService runtimeService = getProcessEngineServices().getRuntimeService();
ProcessInstance processInstance =
runtimeService.startProcessInstanceByKey(processKey, businessKey, inputVariables);
processInstanceId = processInstance.getId();
logger.debug(logMarker + "Process " + processKey + ":" + processInstanceId + " "
+ (processInstance.isEnded() ? "ENDED" : "RUNNING"));
} catch (Exception e) {
WorkflowResponse workflowResponse = new WorkflowResponse();
workflowResponse.setResponse("Error occurred while executing the process: " + e);
workflowResponse.setProcessInstanceID(processInstanceId);
workflowResponse.setMessageCode(500);
workflowResponse.setMessage("Fail");
throw new WorkflowProcessorException(workflowResponse);
}
}
// Note: the business key is used to identify the process in unit tests
protected static String getBusinessKey(Map<String, Object> inputVariables) {
return getOrCreate(inputVariables, "mso-business-key");
}
protected static Map<String, Object> getInputVariables(VariableMapImpl variableMap) {
Map<String, Object> inputVariables = new HashMap<>();
@SuppressWarnings("unchecked")
Map<String, Object> vMap = (Map<String, Object>) variableMap.get("variables");
for (Map.Entry<String, Object> entry : vMap.entrySet()) {
String vName = entry.getKey();
Object value = entry.getValue();
@SuppressWarnings("unchecked")
Map<String, Object> valueMap = (Map<String, Object>) value; // value, type
inputVariables.put(vName, valueMap.get("value"));
}
return inputVariables;
}
protected static String getOrCreate(Map<String, Object> inputVariables, String key) {
String value = Objects.toString(inputVariables.get(key), null);
if (value == null) {
value = UUID.randomUUID().toString();
inputVariables.put(key, value);
}
return value;
}
}
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