/*
* Copyright 2010-2011 the original author or authors.
*
* 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 com.starflow.wf.engine.service.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.springframework.util.Assert;
import com.starflow.wf.engine.ProcessEngine;
import com.starflow.wf.engine.core.Constants;
import com.starflow.wf.engine.model.ProcessDefine;
import com.starflow.wf.engine.model.elements.ActivityElement;
import com.starflow.wf.engine.model.elements.FreeActElement;
import com.starflow.wf.engine.model.elements.TransitionElement;
import com.starflow.wf.engine.repository.IProcessDefineRepository;
import com.starflow.wf.engine.service.IFreeFlowService;
/**
*
* @author libinsong1204@gmail.com
* @version 1.0
*/
public class FreeFlowService implements IFreeFlowService {
final private ProcessEngine processEngine;
private IProcessDefineRepository procDefRep;
public FreeFlowService(ProcessEngine processEngine) {
Assert.notNull(processEngine);
this.processEngine = processEngine;
this.procDefRep = this.processEngine.getApplicationContext().getBean(IProcessDefineRepository.class);
}
/**
* {@inheritDoc}
*/
public boolean isFreeActivity(long processDefId, String activityDefId) {
ProcessDefine processDefine = this.procDefRep.findProcessDefine(processDefId);
ActivityElement activityXml = processDefine.getProcessObject().getActivitys().get(activityDefId);
return activityXml.getIsFreeActivity();
}
/**
* {@inheritDoc}
*/
public List<FreeActElement> queryPossibleNextActsOfFreeActivity(long processDefId, String activityDefId) {
ProcessDefine processDefine = this.procDefRep.findProcessDefine(processDefId);
ActivityElement activityXml = processDefine.getProcessObject().getActivitys().get(activityDefId);
String strategy = activityXml.getFreeRangeStrategy();
//是否尽限为人工活动
boolean isOnlyLimitedManualAct = activityXml.getIsOnlyLimitedManualActivity();
List<FreeActElement> actEls = new ArrayList<FreeActElement>();
if(Constants.Free_Act_strategy_three.equalsIgnoreCase(strategy)) {
//在后继活动范围内自由
List<TransitionElement> transitions = activityXml.getAfterTrans();
for(TransitionElement tx : transitions) {
String _actDefId = tx.getTo();
ActivityElement ax = processDefine.getProcessObject().getActivitys().get(_actDefId);
if(isOnlyLimitedManualAct && !Constants.ACT_TYPE_MANUL.equals(ax.getType())) {
continue;
}
FreeActElement freeActXml = new FreeActElement();
freeActXml.setId(ax.getId());
freeActXml.setName(ax.getName());
freeActXml.setType(ax.getType());
actEls.add(freeActXml);
}
} else if(Constants.Free_Act_strategy_two.equalsIgnoreCase(strategy)) {
//在指定活动列表范围内自由
activityXml.getFreeActs();
} else if(Constants.Free_Act_strategy_One.equalsIgnoreCase(strategy)) {
//在流程范围内任意自由
Collection<ActivityElement> collect = processDefine.getProcessObject().getActivitys().values();
for(ActivityElement ax : collect) {
if(isOnlyLimitedManualAct && !Constants.ACT_TYPE_MANUL.equals(ax.getType())) {
continue;
}
FreeActElement freeActXml = new FreeActElement();
freeActXml.setId(ax.getId());
freeActXml.setName(ax.getName());
freeActXml.setType(ax.getType());
actEls.add(freeActXml);
}
}
return actEls;
}
}