Java XML String Transform writePropToString(Properties props)

Description

Convert Properties to string

License

Apache License

Parameter

Parameter	Description
props	a parameter

Exception

Parameter	Description
IOException	an exception

Return

xml string

Declaration

public static String writePropToString(Properties props) throws IOException 

Method Source Code

//package com.java2s;
/**/*from   ww  w .  ja v  a  2 s.  c  o  m*/
 * 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. See accompanying LICENSE file.
 */

import java.io.IOException;

import java.io.StringWriter;

import java.util.Enumeration;

import java.util.Properties;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

public class Main {
    /**
     * Convert Properties to string
     *
     * @param props
     * @return xml string
     * @throws IOException
     */
    public static String writePropToString(Properties props) throws IOException {
        try {
            org.w3c.dom.Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
            org.w3c.dom.Element conf = doc.createElement("configuration");
            doc.appendChild(conf);
            conf.appendChild(doc.createTextNode("\n"));
            for (Enumeration e = props.keys(); e.hasMoreElements();) {
                String name = (String) e.nextElement();
                Object object = props.get(name);
                String value;
                if (object instanceof String) {
                    value = (String) object;
                } else {
                    continue;
                }
                org.w3c.dom.Element propNode = doc.createElement("property");
                conf.appendChild(propNode);

                org.w3c.dom.Element nameNode = doc.createElement("name");
                nameNode.appendChild(doc.createTextNode(name.trim()));
                propNode.appendChild(nameNode);

                org.w3c.dom.Element valueNode = doc.createElement("value");
                valueNode.appendChild(doc.createTextNode(value.trim()));
                propNode.appendChild(valueNode);

                conf.appendChild(doc.createTextNode("\n"));
            }

            Source source = new DOMSource(doc);
            StringWriter stringWriter = new StringWriter();
            Result result = new StreamResult(stringWriter);
            TransformerFactory factory = TransformerFactory.newInstance();
            Transformer transformer = factory.newTransformer();
            transformer.transform(source, result);

            return stringWriter.getBuffer().toString();
        } catch (Exception e) {
            throw new IOException(e);
        }
    }
}

Related

1. toString(Collection c, String separator)
2. toString(Source input)
3. write(Node node, OutputStream out, String... props)
4. writeElement(Element element, String fileName)
5. writeNodeSubtreeXMLString(final Node node, final Writer writer)
6. writeResultToFile(final StreamResult result, final String path)
7. writeToFile(String xmlContent, String path)
8. writeXML(Node node, String dtdFilename, String outputFileName)
9. writeXml(OutputStream os, Node node, String encoding)