/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.config.type;
import com.caucho.config.*;
import com.caucho.util.*;
import java.util.*;
import java.lang.reflect.Array;
/**
* Represents a class type.
*/
public final class ClassType extends ConfigType
{
private static final L10N L = new L10N(ClassType.class);
public static final ClassType TYPE = new ClassType();
private static final HashMap<String,Class> _primitiveTypes
= new HashMap<String,Class>();
/**
* The ClassType is a singleton
*/
private ClassType()
{
}
/**
* Returns the Java type.
*/
public Class getType()
{
return Class.class;
}
/**
* Converts the string to a value of the type.
*/
public Object valueOf(String text)
{
if (text == null || text.length() == 0)
return null;
else {
Class type = _primitiveTypes.get(text);
if (type != null)
return type;
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
int bracketIdx = text.indexOf('[');
if (bracketIdx > 0) {
String componentTypeName = text.substring(0, bracketIdx);
Class componentClass = _primitiveTypes.get(componentTypeName);
if (componentClass == null)
componentClass = Class.forName(componentTypeName, false, loader);
while (bracketIdx > 0) {
componentClass = Array.newInstance(componentClass, 0).getClass();
bracketIdx = text.indexOf('[', (bracketIdx + 1));
}
return componentClass;
}
else {
return Class.forName(text, false, loader);
}
} catch (Exception e) {
throw ConfigException.create(e);
}
}
}
/**
* Converts the value to a value of the type.
*/
public Object valueOf(Object value)
{
if (value instanceof Class)
return value;
else if (value == null)
return null;
else if (value instanceof String)
return valueOf((String) value);
else
throw new ConfigException(L.l("'{0}' cannot be converted to an Class",
value));
}
static {
_primitiveTypes.put("void", void.class);
_primitiveTypes.put("boolean", boolean.class);
_primitiveTypes.put("char", char.class);
_primitiveTypes.put("byte", byte.class);
_primitiveTypes.put("short", short.class);
_primitiveTypes.put("int", int.class);
_primitiveTypes.put("long", long.class);
_primitiveTypes.put("float", float.class);
_primitiveTypes.put("double", double.class);
_primitiveTypes.put(Boolean.class.getName(), Boolean.class);
_primitiveTypes.put(Character.class.getName(), Character.class);
_primitiveTypes.put(Byte.class.getName(), Byte.class);
_primitiveTypes.put(Short.class.getName(), Short.class);
_primitiveTypes.put(Integer.class.getName(), Integer.class);
_primitiveTypes.put(Long.class.getName(), Long.class);
_primitiveTypes.put(Float.class.getName(), Float.class);
_primitiveTypes.put(Double.class.getName(), Double.class);
_primitiveTypes.put(String.class.getName(), String.class);
_primitiveTypes.put(Class.class.getName(), Class.class);
_primitiveTypes.put("Boolean", Boolean.class);
_primitiveTypes.put("Character", Character.class);
_primitiveTypes.put("Byte", Byte.class);
_primitiveTypes.put("Short", Short.class);
_primitiveTypes.put("Integer", Integer.class);
_primitiveTypes.put("Long", Long.class);
_primitiveTypes.put("Float", Float.class);
_primitiveTypes.put("Double", Double.class);
_primitiveTypes.put("String", String.class);
_primitiveTypes.put("Date", Date.class);
_primitiveTypes.put("Class", Class.class);
}
}