Main.java Source code

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Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Paint;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

/* 
 * JCommon : a free general purpose class library for the Java(tm) platform
 * 
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/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.]
 * 
 * ------------
 * IOUtils.java
 * ------------
 * (C)opyright 2002-2004, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * $Id: IOUtils.java,v 1.8 2009/01/22 08:34:58 taqua Exp $
 *
 * Changes
 * -------
 * 26-Jan-2003 : Initial version
 * 23-Feb-2003 : Documentation
 * 25-Feb-2003 : Fixed Checkstyle issues (DG);
 * 29-Apr-2003 : Moved to jcommon
 * 04-Jan-2004 : Fixed JDK 1.2.2 issues with createRelativeURL;
 *               added support for query strings within these urls (TM);
 */

public class Main {
    /**
     * Returns <code>true</code> if a class implements <code>Serializable</code>
     * and <code>false</code> otherwise.
     *
     * @param c  the class.
     *
     * @return A boolean.
     */
    public static boolean isSerializable(final Class c) {
        /**
        final Class[] interfaces = c.getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            if (interfaces[i].equals(Serializable.class)) {
          return true;
            }
        }
        Class cc = c.getSuperclass();
        if (cc != null) {
            return isSerializable(cc);
        }
         */
        return (Serializable.class.isAssignableFrom(c));
    }

    /**
     * Reads a <code>Paint</code> object that has been serialised by the
     * {@link SerialUtilities#writePaint(Paint, ObjectOutputStream)} method.
     *
     * @param stream  the input stream (<code>null</code> not permitted).
     *
     * @return The paint object (possibly <code>null</code>).
     *
     * @throws IOException  if there is an I/O problem.
     * @throws ClassNotFoundException  if there is a problem loading a class.
     */
    public static Paint readPaint(final ObjectInputStream stream) throws IOException, ClassNotFoundException {

        if (stream == null) {
            throw new IllegalArgumentException("Null 'stream' argument.");
        }
        Paint result = null;
        final boolean isNull = stream.readBoolean();
        if (!isNull) {
            final Class c = (Class) stream.readObject();
            if (isSerializable(c)) {
                result = (Paint) stream.readObject();
            } else if (c.equals(GradientPaint.class)) {
                final float x1 = stream.readFloat();
                final float y1 = stream.readFloat();
                final Color c1 = (Color) stream.readObject();
                final float x2 = stream.readFloat();
                final float y2 = stream.readFloat();
                final Color c2 = (Color) stream.readObject();
                final boolean isCyclic = stream.readBoolean();
                result = new GradientPaint(x1, y1, c1, x2, y2, c2, isCyclic);
            }
        }
        return result;

    }

    /**
     * Serialises a <code>Paint</code> object.
     *
     * @param paint  the paint object (<code>null</code> permitted).
     * @param stream  the output stream (<code>null</code> not permitted).
     *
     * @throws IOException if there is an I/O error.
     */
    public static void writePaint(final Paint paint, final ObjectOutputStream stream) throws IOException {

        if (stream == null) {
            throw new IllegalArgumentException("Null 'stream' argument.");
        }
        if (paint != null) {
            stream.writeBoolean(false);
            stream.writeObject(paint.getClass());
            if (paint instanceof Serializable) {
                stream.writeObject(paint);
            } else if (paint instanceof GradientPaint) {
                final GradientPaint gp = (GradientPaint) paint;
                stream.writeFloat((float) gp.getPoint1().getX());
                stream.writeFloat((float) gp.getPoint1().getY());
                stream.writeObject(gp.getColor1());
                stream.writeFloat((float) gp.getPoint2().getX());
                stream.writeFloat((float) gp.getPoint2().getY());
                stream.writeObject(gp.getColor2());
                stream.writeBoolean(gp.isCyclic());
            }
        } else {
            stream.writeBoolean(true);
        }

    }
}