/* 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.
*/
package org.activiti.engine.impl.bpmn.parser.handler;
import org.activiti.bpmn.model.Activity;
import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.FlowNode;
import org.activiti.bpmn.model.MultiInstanceLoopCharacteristics;
import org.activiti.bpmn.model.UserTask;
import org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior;
import org.activiti.engine.impl.bpmn.behavior.MixMultiInstanceActivityBehavior;
import org.activiti.engine.impl.bpmn.behavior.MixUserTaskActivityBehavior;
import org.activiti.engine.impl.bpmn.behavior.MultiInstanceActivityBehavior;
import org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior;
import org.activiti.engine.impl.bpmn.parser.BpmnParse;
import org.activiti.engine.impl.cfg.BeansConfigurationHelper;
import org.activiti.engine.impl.el.ExpressionManager;
import org.activiti.engine.impl.pvm.process.ActivityImpl;
import org.activiti.engine.impl.task.TaskDefinition;
import org.apache.commons.lang.StringUtils;
import com.frameworkset.util.StringUtil;
/**
* @author Joram Barrez
*/
public abstract class AbstractActivityBpmnParseHandler<T extends FlowNode> extends AbstractFlowNodeBpmnParseHandler<T> {
@Override
public void parse(BpmnParse bpmnParse, BaseElement element) {
super.parse(bpmnParse, element);
if (element instanceof Activity
&& ((Activity) element).getLoopCharacteristics() != null) {
createMultiInstanceLoopCharacteristics(bpmnParse, (Activity) element);
}
else if(element instanceof UserTask && BeansConfigurationHelper.getProcessEngineConfiguration().enableMixMultiUserTask())
{
UserTask userTask = (UserTask)element;
createUserTaskMultiInstanceLoopCharacteristics(bpmnParse, userTask) ;
}
}
protected void createUserTaskMultiInstanceLoopCharacteristics(BpmnParse bpmnParse, UserTask modelActivity) {
// Activity Behavior
ActivityImpl activity = bpmnParse.getCurrentScope().findActivity(modelActivity.getId());
if (activity == null) {
bpmnParse.getBpmnModel().addProblem("Activity " + modelActivity.getId() + " needed for multi instance cannot bv found", modelActivity);
}
AbstractBpmnActivityBehavior bpmnActivityBehavior = (AbstractBpmnActivityBehavior) activity.getActivityBehavior();
if( !(bpmnActivityBehavior instanceof UserTaskActivityBehavior))
return ;
String assignee = null;
if (StringUtil.isEmpty(modelActivity.getAssignee())) {
if (StringUtil.isEmpty(modelActivity.getCandidateUsers())) {
return ;
}
else
{
assignee = modelActivity.getCandidateUsers().get(0);
}
}
else
{
assignee = modelActivity.getAssignee();
}
if(StringUtil.isEmpty(assignee ))
return ;
bpmnActivityBehavior.setUseMixUsetask(true);
MixUserTaskActivityBehavior mixUserTaskActivityBehavior = new MixUserTaskActivityBehavior((UserTaskActivityBehavior)bpmnActivityBehavior);
// MultiInstanceLoopCharacteristics loopCharacteristics = modelActivity.getLoopCharacteristics();
MultiInstanceActivityBehavior miActivityBehavior = null;
MultiInstanceActivityBehavior miParallelActivityBehavior = null;
MultiInstanceActivityBehavior miSequentialActivityBehavior = null;
miParallelActivityBehavior = bpmnParse.getActivityBehaviorFactory().createParallelMultiInstanceBehavior(
activity, bpmnActivityBehavior);
miSequentialActivityBehavior = bpmnParse.getActivityBehaviorFactory().createSequentialMultiInstanceBehavior(
activity, bpmnActivityBehavior);
miActivityBehavior = new MixMultiInstanceActivityBehavior(activity,
miParallelActivityBehavior,
miSequentialActivityBehavior,
MultiInstanceActivityBehavior.multiInstanceMode_parallel);
miActivityBehavior.setInnerActivityBehavior(bpmnActivityBehavior);
mixUserTaskActivityBehavior.setMixmultiInstanceActivityBehavior(miActivityBehavior);
// if (loopCharacteristics.isSequential()) {
// miActivityBehavior = bpmnParse.getActivityBehaviorFactory().createSequentialMultiInstanceBehavior(
// activity, (AbstractBpmnActivityBehavior) activity.getActivityBehavior());
// } else {
// miActivityBehavior = bpmnParse.getActivityBehaviorFactory().createParallelMultiInstanceBehavior(
// activity, (AbstractBpmnActivityBehavior) activity.getActivityBehavior());
// }
// ActivityImpl settings
activity.setScope(false);//scope主要是用来干嘛呢
// activity.setProperty("multiInstance", loopCharacteristics.isSequential() ? MultiInstanceActivityBehavior.multiInstanceMode_sequential : MultiInstanceActivityBehavior.multiInstanceMode_parallel);
activity.setActivityBehavior(mixUserTaskActivityBehavior);
ExpressionManager expressionManager = bpmnParse.getExpressionManager();
BpmnModel bpmnModel = bpmnParse.getBpmnModel();
// // loopcardinality
// if (StringUtils.isNotEmpty(loopCharacteristics.getLoopCardinality())) {
// miActivityBehavior.setLoopCardinalityExpression(expressionManager.createExpression(loopCharacteristics.getLoopCardinality()));
// }
//
// // completion condition
// if (StringUtils.isNotEmpty(loopCharacteristics.getCompletionCondition())) {
// miActivityBehavior.setCompletionConditionExpression(expressionManager.createExpression(loopCharacteristics.getCompletionCondition()));
// }
// activiti:collection
if (StringUtil.isNotEmpty(assignee)) {
if (assignee.contains("{")) {
miActivityBehavior.setCollectionExpression(expressionManager.createExpression(assignee));
} else {
miActivityBehavior.setCollectionVariable(assignee);
}
miActivityBehavior.setCollectionElementVariable(modelActivity.getId()+"_user");
bpmnActivityBehavior.setCollectionElementVariable(miActivityBehavior.getCollectionElementVariable());
}
}
protected void createMultiInstanceLoopCharacteristics(BpmnParse bpmnParse, org.activiti.bpmn.model.Activity modelActivity) {
MultiInstanceLoopCharacteristics loopCharacteristics = modelActivity.getLoopCharacteristics();
// Activity Behavior
MultiInstanceActivityBehavior miActivityBehavior = null;
MultiInstanceActivityBehavior miParallelActivityBehavior = null;
MultiInstanceActivityBehavior miSequentialActivityBehavior = null;
ActivityImpl activity = bpmnParse.getCurrentScope().findActivity(modelActivity.getId());
if (activity == null) {
bpmnParse.getBpmnModel().addProblem("Activity " + modelActivity.getId() + " needed for multi instance cannot bv found", modelActivity);
}
AbstractBpmnActivityBehavior bpmnActivityBehavior = (AbstractBpmnActivityBehavior) activity.getActivityBehavior();
miParallelActivityBehavior = bpmnParse.getActivityBehaviorFactory().createParallelMultiInstanceBehavior(
activity, bpmnActivityBehavior);
miSequentialActivityBehavior = bpmnParse.getActivityBehaviorFactory().createSequentialMultiInstanceBehavior(
activity, bpmnActivityBehavior);
miActivityBehavior = new MixMultiInstanceActivityBehavior(activity,
miParallelActivityBehavior,
miSequentialActivityBehavior,
loopCharacteristics.isSequential()?MultiInstanceActivityBehavior.multiInstanceMode_sequential : MultiInstanceActivityBehavior.multiInstanceMode_parallel);
miActivityBehavior.setInnerActivityBehavior(bpmnActivityBehavior);
// if (loopCharacteristics.isSequential()) {
// miActivityBehavior = bpmnParse.getActivityBehaviorFactory().createSequentialMultiInstanceBehavior(
// activity, (AbstractBpmnActivityBehavior) activity.getActivityBehavior());
// } else {
// miActivityBehavior = bpmnParse.getActivityBehaviorFactory().createParallelMultiInstanceBehavior(
// activity, (AbstractBpmnActivityBehavior) activity.getActivityBehavior());
// }
// ActivityImpl settings
activity.setScope(true);
activity.setProperty("multiInstance", loopCharacteristics.isSequential() ? MultiInstanceActivityBehavior.multiInstanceMode_sequential : MultiInstanceActivityBehavior.multiInstanceMode_parallel);
activity.setActivityBehavior(miActivityBehavior);
ExpressionManager expressionManager = bpmnParse.getExpressionManager();
BpmnModel bpmnModel = bpmnParse.getBpmnModel();
// loopcardinality
if (StringUtils.isNotEmpty(loopCharacteristics.getLoopCardinality())) {
miActivityBehavior.setLoopCardinalityExpression(expressionManager.createExpression(loopCharacteristics.getLoopCardinality()));
}
// completion condition
if (StringUtils.isNotEmpty(loopCharacteristics.getCompletionCondition())) {
miActivityBehavior.setCompletionConditionExpression(expressionManager.createExpression(loopCharacteristics.getCompletionCondition()));
}
// activiti:collection
if (StringUtils.isNotEmpty(loopCharacteristics.getInputDataItem())) {
if (loopCharacteristics.getInputDataItem().contains("{")) {
miActivityBehavior.setCollectionExpression(expressionManager.createExpression(loopCharacteristics.getInputDataItem()));
} else {
miActivityBehavior.setCollectionVariable(loopCharacteristics.getInputDataItem());
}
}
// activiti:elementVariable
if (StringUtils.isNotEmpty(loopCharacteristics.getElementVariable())) {
miActivityBehavior.setCollectionElementVariable(loopCharacteristics.getElementVariable());
if(modelActivity instanceof UserTask)
{
UserTask userTask = (UserTask)modelActivity;
if(StringUtils.isEmpty(userTask.getAssignee()))
{
userTask.setAssignee("${"+loopCharacteristics.getElementVariable() + "}");
TaskDefinition taskDefinition = bpmnParse.getCurrentProcessDefinition().getTaskDefinition(userTask.getId());
if(taskDefinition.getAssigneeExpression() == null && taskDefinition.getCandidateGroupIdExpressions().isEmpty() && taskDefinition.getCandidateUserIdExpressions().isEmpty())
{
taskDefinition.setAssigneeExpression(expressionManager.createExpression(userTask.getAssignee()));
}
}
}
}
// Validation
if (miActivityBehavior.getLoopCardinalityExpression() == null && miActivityBehavior.getCollectionExpression() == null
&& miActivityBehavior.getCollectionVariable() == null) {
bpmnModel.addProblem("Either loopCardinality or loopDataInputRef/activiti:collection must been set.", loopCharacteristics);
}
// Validation
if (miActivityBehavior.getCollectionExpression() == null && miActivityBehavior.getCollectionVariable() == null
&& miActivityBehavior.getCollectionElementVariable() != null) {
bpmnModel.addProblem("LoopDataInputRef/activiti:collection must be set when using inputDataItem or activiti:elementVariable.", loopCharacteristics);
}
}
}