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: * Returns the fully qualified class name for the attribute handler for a property of
065: * the specified class.
066: *
067: * @param c the property class.
068: *
069: * @return the attribute handler class name.
070: */
071: public static String getHandlerClass(final Class c) {
072: if (c.equals(Integer.class) || c.equals(Integer.TYPE)) {
073: return IntegerAttributeHandler.class.getName();
074: }
075: if (c.equals(Short.class) || c.equals(Short.TYPE)) {
076: return ShortAttributeHandler.class.getName();
077: }
078: if (c.equals(Long.class) || c.equals(Long.TYPE)) {
079: return LongAttributeHandler.class.getName();
080: }
081: if (c.equals(Boolean.class) || c.equals(Boolean.TYPE)) {
082: return BooleanAttributeHandler.class.getName();
083: }
084: if (c.equals(Float.class) || c.equals(Float.TYPE)) {
085: return FloatAttributeHandler.class.getName();
086: }
087: if (c.equals(Double.class) || c.equals(Double.TYPE)) {
088: return DoubleAttributeHandler.class.getName();
089: }
090: if (c.equals(Byte.class) || c.equals(Byte.TYPE)) {
091: return ByteAttributeHandler.class.getName();
092: }
093: // string can also be handled directly ...
094: if (c.equals(String.class)) {
095: return StringAttributeHandler.class.getName();
096: }
097: throw new IllegalArgumentException(
098: "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(
166: "This is none of my primitives.");
167: }
168:
169: }
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