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

Introduction

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

Source

/*
 * 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.IOException;
import java.io.StringWriter;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

/**
 * 
 * @author libinsong1204@gmail.com
 * @version 1.0
 */
public class XmlFormat {
    /**
     * dom4j?XML'pretty'?.getPrettyStiring(doc,"gb2312");
     * 
     * @param xml
     *            ??XML.
     * @return ??XML.
     * @see XmlFormat#getPrettyStiring(String, String)
     */
    public static String getPrettyString(String xml) {
        try {
            return getPrettyString(xml, "GB2312");
        } catch (DocumentException e) {
            e.printStackTrace();
            throw new RuntimeException("Pretty Xml ");
        }
    }

    /**
     * dom4j?XML'pretty'?.
     * 
     * @param xml
     *            ??XML.
     * @param encoding
     *            ??.
     * @return ??XML.null,???.
     */
    public static String getPrettyString(String xml, String encoding) throws DocumentException {
        if (xml == null || xml.trim().length() < 1) {
            return xml;
        }

        Document doc = DocumentHelper.parseText(xml);
        return getPrettyString(doc, encoding);
    }

    /**
     * dom4j'pretty'??dom.
     * 
     * @param doc
     *            ??dom.
     * @param encoding
     *            ??.
     * @return ??XML.null,???.
     */
    public static String getPrettyString(Document doc, String encoding) {
        StringWriter writer = new StringWriter();
        OutputFormat format = OutputFormat.createPrettyPrint();
        if (encoding == null || "".equals(encoding.trim())) {
            encoding = "GBK";
        }
        format.setEncoding(encoding);
        XMLWriter xmlwriter = new XMLWriter(writer, format);

        try {
            xmlwriter.write(doc);
        } catch (IOException e) {
            e.printStackTrace();
        }

        return writer.toString();
    }
}