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 }