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 }