    001    /* ========================================================================
    002     * JCommon : a free general purpose class library for the Java(tm) platform
    003     * ========================================================================
    004     *
    005     * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
    006     *
    007     * Project Info:  http://www.jfree.org/jcommon/index.html
    008     *
    009     * This library is free software; you can redistribute it and/or modify it
    010     * under the terms of the GNU Lesser General Public License as published by
    011     * the Free Software Foundation; either version 2.1 of the License, or
    012     * (at your option) any later version.
    013     *
    014     * This library is distributed in the hope that it will be useful, but
    015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
    017     * License for more details.
    018     *
    019     * You should have received a copy of the GNU Lesser General Public
    020     * License along with this library; if not, write to the Free Software
    021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
    022     * USA.
    023     *
    024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
    025     * in the United States and other countries.]
    026     *
    027     * ---------------------
    028     * BasicTypeSupport.java
    029     * ---------------------
    030     * (C)opyright 2003-2005, by Thomas Morgner and Contributors.
    031     *
    032     * Original Author:  Thomas Morgner;
    033     * Contributor(s):   David Gilbert (for Object Refinery Limited);
    034     *
    035     * $Id: BasicTypeSupport.java,v 1.4 2005/10/18 13:33:53 mungady Exp $
    036     *
    037     * Changes
    038     * -------
    039     * 12-Nov-2003 : Initial version (TM);
    040     * 26-Nov-2003 : Updated header and Javadocs (DG);
    041     *
    042     */
    043
    044    package org.jfree.xml.util;
    045
    046    import org.jfree.xml.attributehandlers.BooleanAttributeHandler;
    047    import org.jfree.xml.attributehandlers.ByteAttributeHandler;
    048    import org.jfree.xml.attributehandlers.DoubleAttributeHandler;
    049    import org.jfree.xml.attributehandlers.FloatAttributeHandler;
    050    import org.jfree.xml.attributehandlers.IntegerAttributeHandler;
    051    import org.jfree.xml.attributehandlers.LongAttributeHandler;
    052    import org.jfree.xml.attributehandlers.ShortAttributeHandler;
    053    import org.jfree.xml.attributehandlers.StringAttributeHandler;
    054
    055    /**
    056     * A class that contains information about some basic types.
    057     */
    058    public class BasicTypeSupport {
    059
    060      private BasicTypeSupport ()
    061      {
    062      }
    063
    064        /**
    065         * Returns the fully qualified class name for the attribute handler for a property of
    066         * the specified class.
    067         *
    068         * @param c  the property class.
    069         *
    070         * @return the attribute handler class name.
    071         */
    072        public static String getHandlerClass(final Class c) {
    073            if (c.equals(Integer.class) || c.equals(Integer.TYPE)) {
    074                return IntegerAttributeHandler.class.getName();
    075            }
    076            if (c.equals(Short.class) || c.equals(Short.TYPE)) {
    077                return ShortAttributeHandler.class.getName();
    078            }
    079            if (c.equals(Long.class) || c.equals(Long.TYPE)) {
    080                return LongAttributeHandler.class.getName();
    081            }
    082            if (c.equals(Boolean.class) || c.equals(Boolean.TYPE)) {
    083                return BooleanAttributeHandler.class.getName();
    084            }
    085            if (c.equals(Float.class) || c.equals(Float.TYPE)) {
    086                return FloatAttributeHandler.class.getName();
    087            }
    088            if (c.equals(Double.class) || c.equals(Double.TYPE)) {
    089                return DoubleAttributeHandler.class.getName();
    090            }
    091            if (c.equals(Byte.class) || c.equals(Byte.TYPE)) {
    092                return ByteAttributeHandler.class.getName();
    093            }
    094            // string can also be handled directly ...
    095            if (c.equals(String.class)) {
    096                return StringAttributeHandler.class.getName();
    097            }
    098            throw new IllegalArgumentException("BasicTypeSupport.getHandlerClass(Class): "
    099                + "this is no attribute type.");
    100        }
    101
    102        /**
    103         * Returns <code>true</code> if the specified class is a "basic" type, and <code>false</code>
    104         * otherwise.  Basic types are written as attributes (rather than elements) in XML output.
    105         *
    106         * @param c  the class.
    107         *
    108         * @return a boolean.
    109         */
    110        public static boolean isBasicDataType (final Class c) {
    111            if (c.equals(Integer.class) || c.equals(Integer.TYPE)) {
    112                return true;
    113            }
    114            if (c.equals(Short.class) || c.equals(Short.TYPE)) {
    115                return true;
    116            }
    117            if (c.equals(Long.class) || c.equals(Long.TYPE)) {
    118                return true;
    119            }
    120            if (c.equals(Boolean.class) || c.equals(Boolean.TYPE)) {
    121                return true;
    122            }
    123            if (c.equals(Float.class) || c.equals(Float.TYPE)) {
    124                return true;
    125            }
    126            if (c.equals(Double.class) || c.equals(Double.TYPE)) {
    127                return true;
    128            }
    129            if (c.equals(Byte.class) || c.equals(Byte.TYPE)) {
    130                return true;
    131            }
    132            // string can also be handled directly ...
    133            if (c.equals(String.class)) {
    134                return true;
    135            }
    136            return false;
    137        }
    138
    139        /**
    140         * Returns the class for a given primitive class type.
    141         *
    142         * @param className  the primitive class name.
    143         *
    144         * @return a class.
    145         */
    146        public static Class getClassRepresentation(final String className) {
    147            if (className.equals("::double")) {
    148                return Double.TYPE;
    149            }
    150            if (className.equals("::boolean")) {
    151                return Boolean.TYPE;
    152            }
    153            if (className.equals("::int")) {
    154                return Integer.TYPE;
    155            }
    156            if (className.equals("::short")) {
    157                return Short.TYPE;
    158            }
    159            if (className.equals("::long")) {
    160                return Long.TYPE;
    161            }
    162            if (className.equals("::byte")) {
    163                return Byte.TYPE;
    164            }
    165            throw new IllegalArgumentException("This is none of my primitives.");
    166        }
    167
    168    }