/*
* 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 java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import com.starflow.wf.engine.core.Constants;
import com.starflow.wf.engine.model.elements.ActivityElement;
import com.starflow.wf.engine.model.elements.ProcessElement;
import com.starflow.wf.engine.model.elements.TransitionElement;
/**
* 把流程定义信息解析为java对象
*
* @author libinsong1204@gmail.com
* @version 1.0
*/
public class ProcessDefineParser {
public static Document createDocument(String xml) {
SAXReader reader = new SAXReader();
Document document = null;
try {
document = reader.read(new StringReader(xml));
} catch (Exception e) {
throw new StarFlowParserException("流程定义信息不正确", e);
}
return document;
}
public static ProcessElement createProcessXml(String xml) {
ProcessElement processXml = new ProcessElement();
Document document = createDocument(xml);
queryProcessXmlInfo(processXml, document);
processXml.setTransitions(queryTransitionXmlInfo(document));
processXml.setActivitys(queryActivityXmlInfo(processXml, document));
return processXml;
}
private static void queryProcessXmlInfo(ProcessElement processXml, Document document) {
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();
processXml.setName(name);
if(chname != null)
processXml.setChname(chname);
else
processXml.setChname(name);
processXml.setVersion(version);
processXml.setDescription(description);
processXml.setLimitTime(Long.parseLong(limitTime));
Element node = (Element)rootElement.selectSingleNode("/ProcessDefine/ProcessProperty");
processXml.setEvents(NodeUtil.getTriggerEvents(node));
processXml.setProperties(NodeUtil.getExtProperties(node));
}
@SuppressWarnings("unchecked")
private static Map<String, ActivityElement> queryActivityXmlInfo(ProcessElement processXml, Document document) {
Map<String, ActivityElement> aMap = new ConcurrentHashMap<String, ActivityElement>();
List<Element> actEls = null;
String _xpath = "/ProcessDefine/Activitys/Activity";
actEls = document.selectNodes(_xpath);
for(Element actEl : actEls) {
ActivityElement activityXml = new ActivityElement();
String id = NodeUtil.getNodeAttrValue(actEl, StarFlowNames.ACT_ATTR_ID);
activityXml.setId(id);
String type = NodeUtil.getNodeAttrValue(actEl, StarFlowNames.ACT_ATTR_TYPE);
activityXml.setType(type);
activityXml.setName(NodeUtil.getNodeAttrValue(actEl, StarFlowNames.ACT_ATTR_NAME));
activityXml.setDescription(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_DESC));
if(Constants.ACT_TYPE_START.equalsIgnoreCase(type)) {//开始
activityXml.setSplitMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_SPLIT));
} else if(Constants.ACT_TYPE_END.equalsIgnoreCase(type)) {//结束
activityXml.setJoinMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_JOIN));
activityXml.setActivateRuleType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_ACTIVATE_RULE_TYPE));
activityXml.setStartStrategybyAppAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_STARTSTRATEGYBYAPPACTION));
} else if(Constants.ACT_TYPE_TOOLAPP.equalsIgnoreCase(type)) {//自动
activityXml.setFinishType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_AUTO_FINSISH_TYPE));
activityXml.setInvokePattern(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_AUTO_INVOKE_PATTERN));
activityXml.setTransactionType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_AUTO_TRANSACTION_TYPE));
activityXml.setExceptionStrategy(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_EXCEPTION_STRATEGY));
activityXml.setExceptionAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_EXCEPTION_ACTION));
activityXml.setExecuteAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_AUTO_EXEC_ACTION));
activityXml.setJoinMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_JOIN));
activityXml.setSplitMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_SPLIT));
activityXml.setActivateRuleType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_ACTIVATE_RULE_TYPE));
activityXml.setStartStrategybyAppAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_STARTSTRATEGYBYAPPACTION));
activityXml.setEvents(NodeUtil.getTriggerEvents(actEl));
activityXml.setProperties(NodeUtil.getExtProperties(actEl));
} else if(Constants.ACT_TYPE_SUBPROCESS.equalsIgnoreCase(type)) {//子流程
activityXml.setSubProcess(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_SUBPROCESS));
activityXml.setSpInvokePattern(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_SP_INVOKE_PATTERN));
activityXml.setJoinMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_JOIN));
activityXml.setSplitMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_SPLIT));
activityXml.setActivateRuleType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_ACTIVATE_RULE_TYPE));
activityXml.setStartStrategybyAppAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_STARTSTRATEGYBYAPPACTION));
activityXml.setEvents(NodeUtil.getTriggerEvents(actEl));
} else if(Constants.ACT_TYPE_MANUL.equalsIgnoreCase(type)) {//人工环节
activityXml.setParticipantType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_PARTICI_MODE));
activityXml.setIsAllowAppointParticipants(NodeUtil.getNodeBooleanValue(actEl, StarFlowNames.ACT_CHILD_PARTICI_IS_ALLOW_APPOINT));
activityXml.setParticiLogic(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_PARTICI_LOGIC));
activityXml.setParticiSpecActID(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_PARTICI_ACTID));
activityXml.setIsFreeActivity(NodeUtil.getNodeBooleanValue(actEl, StarFlowNames.ACT_FREE_ISFREEACT));
activityXml.setFreeRangeStrategy(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_FREE_RANGESTRATEGY));
activityXml.setIsOnlyLimitedManualActivity(NodeUtil.getNodeBooleanValue(actEl, StarFlowNames.ACT_FREE_ISONLYLIMITEDMANUALACT));
activityXml.setWiMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_WI_MODE));
activityXml.setIsSequentialExecute(NodeUtil.getNodeBooleanValue(actEl, StarFlowNames.ACT_CHILD_WI_IS_SEQ_EXEC));
activityXml.setWorkitemNumStrategy(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_WI_WORKITEMNUMSTRATEGY));
activityXml.setFinishRule(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_WI_FINISHRULE));
activityXml.setFinishRequiredPercent(NodeUtil.getNodeDoubleValue(actEl, StarFlowNames.ACT_CHILD_WI_FINISHREQUIREDPERCENT));
activityXml.setFinishRquiredNum(NodeUtil.getNodeIntValue(actEl, StarFlowNames.ACT_CHILD_WI_FINISHRQUIREDNUM));
activityXml.setIsAutoCancel(NodeUtil.getNodeBooleanValue(actEl, StarFlowNames.ACT_CHILD_WI_IS_AUTO_CANCEL));
activityXml.setJoinMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_JOIN));
activityXml.setSplitMode(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_SPLIT));
activityXml.setLimitTime(NodeUtil.getNodeLongValue(actEl, StarFlowNames.ACT_CHILD_LIMITTIME));
activityXml.setActivateRuleType(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_ACTIVATE_RULE_TYPE));
activityXml.setStartStrategybyAppAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_STARTSTRATEGYBYAPPACTION));
activityXml.setResetParticipant(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_RESET_PARTICIPANT));
activityXml.setAction(NodeUtil.getNodeStringValue(actEl, StarFlowNames.ACT_CHILD_ACTION));
activityXml.setOperations(NodeUtil.getOperations(actEl));
activityXml.setEvents(NodeUtil.getTriggerEvents(actEl));
activityXml.setProperties(NodeUtil.getExtProperties(actEl));
activityXml.setParticipants(NodeUtil.getActParticipants(actEl));
activityXml.setFreeActs(NodeUtil.getActFreeActs(actEl));
}
for(TransitionElement transitionXml : processXml.getTransitions()) {
if(transitionXml.getTo().equalsIgnoreCase(id))
activityXml.getBeforeTrans().add(transitionXml);
if(transitionXml.getFrom().equalsIgnoreCase(id))
activityXml.getAfterTrans().add(transitionXml);
}
activityXml.setLeft(NodeUtil.getElementLeft(actEl));
activityXml.setTop(NodeUtil.getElementTop(actEl));
aMap.put(id, activityXml);
}
return aMap;
}
@SuppressWarnings("unchecked")
private static List<TransitionElement> queryTransitionXmlInfo(Document document) {
List<TransitionElement> transitions = new CopyOnWriteArrayList<TransitionElement>();
List<Element> tranEls = null;
String _xpath = "/ProcessDefine/Transitions/Transition";
tranEls = document.selectNodes(_xpath);
for(Element tranEl : tranEls) {
TransitionElement transitionXml = new TransitionElement();
transitionXml.setId(NodeUtil.getNodeAttrValue(tranEl, StarFlowNames.TRAN_ATTR_ID));
transitionXml.setName(NodeUtil.getNodeAttrValue(tranEl, StarFlowNames.TRAN_ATTR_NAME));
transitionXml.setFrom(NodeUtil.getNodeAttrValue(tranEl, StarFlowNames.TRAN_ATTR_FROM));
transitionXml.setTo(NodeUtil.getNodeAttrValue(tranEl, StarFlowNames.TRAN_ATTR_TO));
transitionXml.setIsDefault(NodeUtil.getNodeBooleanValue(tranEl, StarFlowNames.TRAN_CHILD_ISDEFAULT));
transitionXml.setComplexExpressionValue(NodeUtil.getNodeStringValue(tranEl, StarFlowNames.TRAN_CHILD_COMPLEXEXPRESSIONVALUE));
transitionXml.setIsSimpleExpression(NodeUtil.getNodeBooleanValue(tranEl, StarFlowNames.TRAN_CHILD_ISSIMPLEEXPRESSION));
transitionXml.setLeftValue(NodeUtil.getNodeStringValue(tranEl, StarFlowNames.TRAN_CHILD_LEFTVALUE));
transitionXml.setCompType(NodeUtil.getNodeStringValue(tranEl, StarFlowNames.TRAN_CHILD_COMPTYPE));
transitionXml.setRightValue(NodeUtil.getNodeStringValue(tranEl, StarFlowNames.TRAN_CHILD_RIGHTVALUE));
transitionXml.setPriority(NodeUtil.getNodeIntValue(tranEl, StarFlowNames.TRAN_CHILD_PRIORITY));
transitionXml.setPoint(NodeUtil.getElementPoint(tranEl));
transitions.add(transitionXml);
}
return transitions;
}
}