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A PHP engine implemented in 100% Java
/*
* Copyright (c) 1998-2012 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.beans.*;
import java.util.*;
/**
* Represents an enumeration type
*/
public final class EnumType extends ConfigType
{
private static final L10N L = new L10N(EnumType.class);
private Class _type;
private HashMap _nameMap = new HashMap();
/**
* The enumeration type
*/
public EnumType(Class type)
{
_type = type;
for (Object value : type.getEnumConstants()) {
Enum enumValue = (Enum) value;
String name = enumValue.name();
_nameMap.put(name, enumValue);
if (_nameMap.get(name.toLowerCase(Locale.ENGLISH)) == null)
_nameMap.put(name.toLowerCase(Locale.ENGLISH), enumValue);
}
}
/**
* Returns the Java type.
*/
public Class getType()
{
return _type;
}
/**
* Converts the string to a value of the type.
*/
@Override
public Object valueOf(String text)
{
if (text == null || "".equals(text)) {
return null;
}
Object value = _nameMap.get(text);
if (value != null)
return value;
throw new ConfigException(L.l("{0}: '{1}' is an unknown enumeration value.",
_type.getName(), text));
}
/**
* Converts the value to a value of the type.
*/
@Override
public Object valueOf(Object value)
{
if (value == null)
return null;
else if (value instanceof String)
return valueOf((String) value);
else if (_type.isAssignableFrom(value.getClass()))
return value;
else
return valueOf(String.valueOf(value));
}
}