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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.openecomp.mso.bpmn.common;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.spy;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.core.Response;
import org.camunda.bpm.engine.ProcessEngineServices;
import org.camunda.bpm.engine.history.HistoricProcessInstance;
import org.camunda.bpm.engine.history.HistoricVariableInstance;
import org.camunda.bpm.engine.variable.impl.VariableMapImpl;
import org.jboss.resteasy.spi.AsynchronousResponse;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.openecomp.mso.bpmn.common.workflow.service.WorkflowAsyncCommonResource;
import org.openecomp.mso.bpmn.common.workflow.service.WorkflowAsyncResource;
import org.openecomp.mso.bpmn.common.workflow.service.WorkflowResource;
import org.openecomp.mso.bpmn.common.workflow.service.WorkflowResponse;
/**
* Set of utility methods used for Unit testing
*
*/
public class BPMNUtil {
public static String getVariable(ProcessEngineServices processEngineServices, String processDefinitionID, String name) {
String pID = getProcessInstanceId(processEngineServices,
processDefinitionID);
assertProcessInstanceFinished(processEngineServices, pID);
HistoricVariableInstance responseData = processEngineServices.getHistoryService()
.createHistoricVariableInstanceQuery().processInstanceId(pID)
.variableName(name)
.singleResult();
if (responseData != null) {
return (responseData.getValue() != null ? responseData.getValue().toString(): null);
}
return null;
}
@SuppressWarnings("unchecked")
public static <T extends Object> T getRawVariable(ProcessEngineServices processEngineServices, String processDefinitionID, String name) {
String pID = getProcessInstanceId(processEngineServices,
processDefinitionID);
assertProcessInstanceFinished(processEngineServices, pID);
Object responseData = processEngineServices.getHistoryService()
.createHistoricVariableInstanceQuery().processInstanceId(pID)
.variableName(name)
.singleResult()
.getValue();
return (T) responseData;
}
public static void assertProcessInstanceFinished(ProcessEngineServices processEngineServices, String pid) {
assertEquals(1, processEngineServices.getHistoryService().createHistoricProcessInstanceQuery().processInstanceId(pid).finished().count());
}
public static void assertProcessInstanceNotFinished(ProcessEngineServices processEngineServices, String processDefinitionID) {
String pID = getProcessInstanceId(processEngineServices,
processDefinitionID);
assertEquals(0, processEngineServices.getHistoryService().createHistoricProcessInstanceQuery().processInstanceId(pID).finished().count());
}
private static String getProcessInstanceId(
ProcessEngineServices processEngineServices, String processDefinitionID) {
List<HistoricProcessInstance> historyList = processEngineServices.getHistoryService().createHistoricProcessInstanceQuery().list();
String pID = null;
for (HistoricProcessInstance hInstance: historyList) {
if (hInstance.getProcessDefinitionKey().equals(processDefinitionID)) {
pID = hInstance.getId();
break;
}
}
return pID;
}
public static boolean isProcessInstanceFinished(ProcessEngineServices processEngineServices, String pid) {
return processEngineServices.getHistoryService().createHistoricProcessInstanceQuery().processInstanceId(pid).finished().count() == 1 ? true: false;
}
private static void buildVariable(String key, String value, Map<String,Object> variableValueType) {
Map<String, Object> host = new HashMap<String, Object>();
host.put("value", value);
host.put("type", "String");
variableValueType.put(key, host);
}
public static WorkflowResponse executeWorkFlow(ProcessEngineServices processEngineServices, String processKey, Map<String,String> variables) {
WorkflowResource workflowResource = new WorkflowResource();
VariableMapImpl variableMap = new VariableMapImpl();
Map<String, Object> variableValueType = new HashMap<String, Object>();
for (String key : variables.keySet()) {
buildVariable(key, variables.get(key), variableValueType);
}
buildVariable("mso-service-request-timeout","600", variableValueType);
variableMap.put("variables", variableValueType);
workflowResource.setProcessEngineServices4junit(processEngineServices);
Response response = workflowResource.startProcessInstanceByKey(
processKey, variableMap);
WorkflowResponse workflowResponse = (WorkflowResponse) response.getEntity();
return workflowResponse;
}
//Check the runtime service to see whether the process is completed
public static void waitForWorkflowToFinish(ProcessEngineServices processEngineServices, String pid) throws InterruptedException {
// Don't wait forever
long waitTime = 120000;
long endTime = System.currentTimeMillis() + waitTime;
while (true) {
if (processEngineServices.getRuntimeService().createProcessInstanceQuery().processInstanceId(pid).singleResult() == null) {
break;
}
if (System.currentTimeMillis() >= endTime) {
fail("Process " + pid + " did not finish in " + waitTime + "ms");
}
Thread.sleep(200);
}
}
/**
* Executes the Asynchronous workflow in synchronous fashion and returns the WorkflowResponse object
* @param processEngineServices
* @param processKey
* @param variables
* @return
* @throws InterruptedException
*/
public static WorkflowResponse executeAsyncWorkflow(ProcessEngineServices processEngineServices, String processKey, Map<String,String> variables) throws InterruptedException {
ProcessThread pthread = new ProcessThread(processKey, processEngineServices, variables);
pthread.start();
BPMNUtil.assertProcessInstanceNotFinished(processEngineServices, processKey);
String pid = getProcessInstanceId(processEngineServices, processKey);
//Caution: If there is a problem with workflow, this may wait for ever
while (true) {
pid = getProcessInstanceId(processEngineServices, processKey);
if (!isProcessInstanceFinished(processEngineServices,pid)) {
Thread.sleep(200);
} else{
break;
}
}
//need to retrieve for second time ?
pid = getProcessInstanceId(processEngineServices, processKey);
waitForWorkflowToFinish(processEngineServices, pid);
return pthread.workflowResponse;
}
/**
* Execute workflow using async resource
* @param processEngineServices
* @param processKey
* @param asyncResponse
* @param variables
*/
private static void executeAsyncFlow(ProcessEngineServices processEngineServices, String processKey, AsynchronousResponse asyncResponse, Map<String,String> variables) {
WorkflowAsyncResource workflowResource = new WorkflowAsyncCommonResource();
VariableMapImpl variableMap = new VariableMapImpl();
Map<String, Object> variableValueType = new HashMap<String, Object>();
for (String key : variables.keySet()) {
buildVariable(key, variables.get(key), variableValueType);
}
buildVariable("mso-service-request-timeout","600", variableValueType);
variableMap.put("variables", variableValueType);
workflowResource.setProcessEngineServices4junit(processEngineServices);
workflowResource.startProcessInstanceByKey(asyncResponse, processKey, variableMap);
}
/**
* Helper class which executes workflow in a thread
*
*/
static class ProcessThread extends Thread {
public WorkflowResponse workflowResponse = null;
public String processKey;
public AsynchronousResponse asyncResponse = spy(AsynchronousResponse.class);
public boolean started;
public ProcessEngineServices processEngineServices;
public Map<String,String> variables;
public ProcessThread(String processKey, ProcessEngineServices processEngineServices, Map<String,String> variables) {
this.processKey = processKey;
this.processEngineServices = processEngineServices;
this.variables = variables;
}
public void run() {
started = true;
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) {
Response response = (Response) invocation.getArguments()[0];
workflowResponse = (WorkflowResponse) response.getEntity();
return null;
}
}).when(asyncResponse).setResponse(any(Response.class));
executeAsyncFlow(processEngineServices, processKey, asyncResponse, variables);
}
}
}
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