/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.reflect.plugins;
import java.beans.PropertyEditor;
import java.beans.PropertyEditorManager;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import org.jboss.common.beans.property.finder.PropertyEditorFinder;
import org.jboss.logging.Logger;
import org.jboss.reflect.plugins.introspection.ReflectionUtils;
import org.jboss.reflect.spi.ProgressionConvertor;
import org.jboss.reflect.spi.ProgressionConvertorFactory;
import org.jboss.util.StringPropertyReplacer;
import org.jboss.util.propertyeditor.PropertyEditors;
/**
* PropertyEditorHelper.
* <p/>
* TODO JBMICROCONT-118 fix the introspection assumption
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 113094 $
*/
public class ValueConvertor
{
/**
* The log
*/
private static final Logger log = Logger.getLogger(ValueConvertor.class);
static
{
try
{
PropertyEditors.init();
}
catch (Throwable t)
{
log.debug("Unable to initialise property editors", t);
}
}
/**
* Convert a value
* <p/>
*
* @param clazz the class
* @param value the value
* @return the value or null if there is no editor
* @throws Throwable for any error
*/
public static Object convertValue(Class<? extends Object> clazz, Object value) throws Throwable
{
return convertValue(clazz, value, false);
}
/**
* Convert a value
*
* @param clazz the class
* @param value the value
* @param replaceProperties whether to replace system properties
* @return the value or null if there is no editor
* @throws Throwable for any error
*/
@SuppressWarnings("unchecked")
public static Object convertValue(Class<? extends Object> clazz, Object value, boolean replaceProperties) throws Throwable
{
return convertValue(clazz, value, replaceProperties, false);
}
/**
* Convert a value
*
* @param clazz the class
* @param value the value
* @param replaceProperties whether to replace system properties
* @param trim whether to trim string value
* @return the value or null if there is no editor
* @throws Throwable for any error
*/
@SuppressWarnings("unchecked")
public static Object convertValue(Class<? extends Object> clazz, Object value, boolean replaceProperties, boolean trim) throws Throwable
{
if (clazz == null)
throw new IllegalArgumentException("Null class");
if (value == null)
return null;
Class<? extends Object> valueClass = value.getClass();
// If we have a string, trim and replace any system properties when requested
if (valueClass == String.class)
{
String string = (String)value;
if (trim)
string = string.trim();
if (replaceProperties)
value = StringPropertyReplacer.replaceProperties(string);
}
if (clazz.isAssignableFrom(valueClass))
return value;
// First see if this is an Enum
if (clazz.isEnum())
{
Class<? extends Enum> eclazz = clazz.asSubclass(Enum.class);
return Enum.valueOf(eclazz, value.toString());
}
// Next look for a property editor
if (valueClass == String.class)
{
PropertyEditor editor = PropertyEditorFinder.getInstance().find(clazz);
if (editor != null)
{
editor.setAsText((String)value);
return editor.getValue();
}
}
// Try a static clazz.valueOf(value)
try
{
Method method = clazz.getMethod("valueOf", valueClass);
int modifiers = method.getModifiers();
if (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers)
&& clazz.isAssignableFrom(method.getReturnType()))
return ReflectionUtils.invoke(method, null, new Object[]{value});
}
catch (Exception ignored)
{
}
// TODO JBMICROCONT-132 improve <init>(String) might not be relevent?
if (valueClass == String.class)
{
try
{
Constructor constructor = clazz.getConstructor(valueClass);
if (Modifier.isPublic(constructor.getModifiers()))
return ReflectionUtils.newInstance(constructor, new Object[]{value});
}
catch (Exception ignored)
{
}
}
return value;
}
/**
* Progress a value
* <p/>
*
* @param clazz the class
* @param value the value
* @return the progressed value or null if unsupported
* @throws Throwable for any error
*/
public static Object progressValue(Class<? extends Object> clazz, Object value) throws Throwable
{
if (value != null)
{
ProgressionConvertor convertor = ProgressionConvertorFactory.getInstance().getConvertor();
if (convertor.canProgress(clazz, value.getClass()))
{
return convertor.doProgression(clazz, value);
}
else
{
return null;
}
}
return value;
}
}