/*
* 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.xml;
import java.io.StringReader;
import java.util.List;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import com.starflow.wf.engine.model.ProcessDefine;
/**
*
* @author libinsong1204@gmail.com
* @version 1.0
*/
public class Dom4jProcDefParser {
/**
* 获取流程信息
*
* @param processDefine
* @return
*/
public static ProcessDefine parserProcessInfo(ProcessDefine processDefine) {
SAXReader reader = new SAXReader();
Document document = null;
try {
document = reader.read(new StringReader(processDefine.getProcessDefContent()));
Element rootElement = document.getRootElement();
String _name = rootElement.attributeValue(StarFlowNames.FLOW_ATTR_NAME);
String _chname = rootElement.attributeValue(StarFlowNames.FLOW_ATTR_CHNAME);
String _version = rootElement.attributeValue(StarFlowNames.FLOW_ATTR_VERSION);
String _xpath = "/ProcessDefine/ProcessProperty/".concat(StarFlowNames.FLOW_CHILD_DESC);
String _description = rootElement.selectSingleNode(_xpath).getText();
_xpath = "/ProcessDefine/ProcessProperty/".concat(StarFlowNames.FLOW_CHILD_LIMITTIME);
String _limitTime = rootElement.selectSingleNode(_xpath).getText();
processDefine.setProcessDefName(_name);
if(_chname != null)
processDefine.setProcessCHName(_chname);
else
processDefine.setProcessCHName(_name);
processDefine.setVersionSign(_version);
processDefine.setDescription(_description);
processDefine.setLimitTime(Long.parseLong(_limitTime));
} catch (Exception e) {
throw new StarFlowParserException("流程定义信息不正确", e);
}
return processDefine;
}
/**
* 根据环节定义ID。获取当前环节节点
*
* @param document
* @param activityDefId
* @return
*/
public static Element parserActivityInfo(Document document, String activityDefId) {
String _xpath = "/ProcessDefine/Activitys/Activity[@id='" + activityDefId + "']";
Element element = (Element)document.selectSingleNode(_xpath);
return element;
}
/**
* 根据环节定义ID。获取当前环节节点
*
* @param document
* @param activityDefId
* @return
*/
public static Element parserActivityInfo(String processDefContent, String activityDefId) {
SAXReader reader = new SAXReader();
Document document = null;
Element element = null;
try {
document = reader.read(new StringReader(processDefContent));
element = parserActivityInfo(document, activityDefId);
} catch (Exception e) {
throw new StarFlowParserException("流程定义信息不正确", e);
}
return element;
}
/**
* 获取当前环节的所有分支环节
*
* @param document
* @param activityDefId
* @return
*/
@SuppressWarnings("unchecked")
public static List<Element> parserTransitionInfoFromTo(Document document, String activityDefId) {
List<Element> list = null;
String _xpath = "/ProcessDefine/Transitions/Transition[@from='" + activityDefId + "']";
list = document.selectNodes(_xpath);
return list;
}
/**
* 获取当前环节的所有前驱环节
*
* @param document
* @param activityDefId
* @return
*/
@SuppressWarnings("unchecked")
public static List<Element> parserTransitionInfoToFrom(Document document, String activityDefId) {
List<Element> list = null;
String _xpath = "/ProcessDefine/Transitions/Transition[@to='" + activityDefId + "']";
list = document.selectNodes(_xpath);
return list;
}
/**
* 获取当前环节的所有分支环节
*
* @param document
* @param activityDefId
* @return
*/
public static List<Element> parserTransitionInfo(String processDefContent, String activityDefId) {
SAXReader reader = new SAXReader();
Document document = null;
List<Element> list = null;
try {
document = reader.read(new StringReader(processDefContent));
list = parserTransitionInfoFromTo(document, activityDefId);
} catch (Exception e) {
throw new StarFlowParserException("流程定义信息不正确", e);
}
return list;
}
}