jfreechart example source code file (URLUtilities.java)

This example jfreechart source code file (URLUtilities.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jfreechart tags/keywords

class, class, illegalaccessexception, invocationtargetexception, method, net, network, nosuchmethodexception, nosuchmethodexception, object, reflection, string, string, string_args_2, string_args_2, urlutilities

The jfreechart URLUtilities.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -----------------
 * URLUtilities.java
 * -----------------
 * (C) Copyright 2007, 2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributors:     -;
 *
 * Changes:
 * --------
 * 17-Apr-2007 : Version 1 (DG);
 *
 */

package org.jfree.chart.urls;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URLEncoder;

/**
 * General utility methods for URLs.
 *
 * @since 1.0.6
 */
public class URLUtilities {

    /** Constant used by {@link #encode(String, String)}. */
    private static final Class[] STRING_ARGS_2 = new Class[] {String.class,
            String.class};

    /**
     * Calls <code>java.net.URLEncoder.encode(String, String) via
     * reflection, if we are running on JRE 1.4 or later, otherwise reverts to
     * the deprecated <code>URLEncoder.encode(String) method.
     *
     * @param s  the string to encode.
     * @param encoding  the encoding.
     *
     * @return The encoded string.
     *
     * @since 1.0.6
     */
    public static String encode(String s, String encoding) {
        Class c = URLEncoder.class;
        String result = null;
        try {
            Method m = c.getDeclaredMethod("encode", STRING_ARGS_2);
            try {
                result = (String) m.invoke(null, new Object[] {s, encoding});
            }
            catch (InvocationTargetException e) {
                e.printStackTrace();
            }
            catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
        catch (NoSuchMethodException e) {
            // we're running on JRE 1.3.1 so this is the best we have...
            result = URLEncoder.encode(s);
        }
        return result;
    }

}