it.unibz.inf.xmlssd.metadator.helpers.UIHelper.java Source code

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Here is the source code for it.unibz.inf.xmlssd.metadator.helpers.UIHelper.java

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/*
 * Copyright 2009 Martin Palma
 * 
 * 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 it.unibz.inf.xmlssd.metadator.helpers;

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;

/**
 * Lonely UI helper class.
 * @author Martin Palma <martin@palma.bz>
 *
 */
public class UIHelper {

    /**
     * Method which return a pretty formated string. If it fails the untouched
     * string is given back.
     * @param str
     * @return
     */
    public static String prettyPrintString(String str) {
        try {
            Document document = DocumentHelper.parseText(str);
            OutputFormat format = OutputFormat.createPrettyPrint();

            // remove <?xml version="1.0" encoding="UTF-8"?>
            format.setSuppressDeclaration(true);

            StringWriter strWriter = new StringWriter();
            XMLWriter writer = new XMLWriter(strWriter, format);

            writer.write(document);

            return strWriter.toString();
        } catch (IOException e) {
        } catch (DocumentException e) {
        }

        return str;
    }

}