com.bstek.urule.parse.flow.FlowDefinitionParser 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.parse.flow;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.commons.lang.StringUtils;
import org.dom4j.Element;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import com.bstek.urule.model.flow.FlowDefinition;
import com.bstek.urule.model.flow.FlowNode;
import com.bstek.urule.model.rule.Library;
import com.bstek.urule.model.rule.LibraryType;
import com.bstek.urule.parse.Parser;
/**
* @author Jacky.gao
* @since 2014年12月23日
*/
@SuppressWarnings("rawtypes")
public class FlowDefinitionParser implements Parser,ApplicationContextAware {
private Collection nodeParsers;
public FlowDefinition parse(Element element,boolean withPermission) {
FlowDefinition flow=new FlowDefinition();
flow.setId(element.attributeValue("id"));
String debug=element.attributeValue("debug");
if(StringUtils.isNotBlank(debug)){
flow.setDebug(Boolean.valueOf(debug));
}
List nodes=new ArrayList();
for(Object obj:element.elements()){
if(obj==null || !(obj instanceof Element)){
continue;
}
Element ele=(Element)obj;
String name=ele.getName();
if(name.equals("import-variable-library")){
flow.addLibrary(buildLibrary(ele, LibraryType.Variable));
}else if(name.equals("import-constant-library")){
flow.addLibrary(buildLibrary(ele, LibraryType.Constant));
}else if(name.equals("import-action-library")){
flow.addLibrary(buildLibrary(ele, LibraryType.Action));
}else if(name.equals("import-parameter-library")){
flow.addLibrary(buildLibrary(ele, LibraryType.Parameter));
}else{
for(FlowNodeParser parser:nodeParsers){
if(parser.support(ele.getName())){
nodes.add((FlowNode)parser.parse(ele,withPermission));
break;
}
}
}
}
flow.setNodes(nodes);
flow.buildConnectionToNode();
return flow;
}
private Library buildLibrary(Element ele, LibraryType type) {
String path=ele.attributeValue("path");
if(path.endsWith(".xml")){
Library lib=new Library(path,null,type);
return lib;
}else{
int versionPos=path.lastIndexOf(":");
String version=path.substring(versionPos+1,path.length());
if(version.equals("LATEST"))version=null;
path=path.substring(0,versionPos);
Library lib=new Library(path,version,type);
return lib;
}
}
public boolean support(String name) {
return name.equals("rule-flow");
}
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
nodeParsers=applicationContext.getBeansOfType(FlowNodeParser.class).values();
}
}