com.googlecode.starflow.engine.xml.Dom4jProcDefParser.java Source code

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Here is the source code for com.googlecode.starflow.engine.xml.Dom4jProcDefParser.java

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/*
 * 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.googlecode.starflow.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.googlecode.starflow.engine.model.ProcessDefine;

/**
 * 
 * @author libinsong1204@gmail.com
 * @version 1.0
 */
public class Dom4jProcDefParser {

    /**
     * ???
     * 
     * @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("???", e);
        }
        return processDefine;
    }

    /**
     * ?ID??
     * 
     * @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;
    }

    /**
     * ?ID??
     * 
     * @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("???", e);
        }
        return element;
    }

    /**
     * ??
     * 
     * @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;
    }

    /**
     * ???
     * 
     * @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;
    }

    /**
     * ??
     * 
     * @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("???", e);
        }
        return list;
    }
}