com.bstek.urule.runtime.rete.AbstractActivity Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2017 Bstek
*
* 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.bstek.urule.runtime.rete;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author Jacky.gao
* @since 2015年1月8日
*/
public abstract class AbstractActivity implements Activity {
private List paths;
public List getPaths() {
return paths;
}
public void addPath(Path path){
if(paths==null){
paths=new ArrayList();
}
this.paths.add(path);
}
protected List visitPahs(EvaluationContext context, Object obj,FactTracker tracker,Map variableMap){
if(paths==null || paths.size()==0){
return null;
}
List trackers=null;
int size=paths.size();
for(Path path:paths){
Collection results=null;
Activity activity=path.getTo();
path.setPassed(true);
if(size>0){
Map newVariableMap=new HashMap();
newVariableMap.putAll(variableMap);
results=activity.enter(context, obj, tracker.newSubFactTracker(),newVariableMap);
}else{
results=activity.enter(context, obj, tracker,variableMap);
}
if(results!=null){
if(trackers==null){
trackers=new ArrayList();
}
trackers.addAll(results);
}
}
return trackers;
}
public abstract boolean orNodeIsPassed();
public abstract void reset();
}