/*
* 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.xml;
import java.lang.annotation.Annotation;
import com.caucho.config.ConfigException;
import com.caucho.config.attribute.Attribute;
import com.caucho.config.type.ConfigType;
import com.caucho.config.type.TypeFactory;
import com.caucho.config.types.AnnotationConfig;
import com.caucho.util.L10N;
import com.caucho.xml.QName;
/**
* Attribute for configuring an XML annotation's value.
*
* The XML equivalent for an attribute @mypkg.MyAttribute(myfield="my-value")
* is the following:
*
* <code><pre>
* <mypkg:MyAttribute>
* <myfield>my-value</myfield>
* </mypkg:MyAttribute>
* </pre></code>
*
*/
public class XmlBeanAnnotationAttribute<T> extends Attribute {
private static final L10N L = new L10N(XmlBeanAnnotationAttribute.class);
private static final QName VALUE = new QName("value");
private final ConfigType<T> _configType;
public XmlBeanAnnotationAttribute(Class<T> cl)
{
_configType = TypeFactory.getType(cl);
}
@Override
public ConfigType<T> getConfigType()
{
return _configType;
}
/**
* Creates the child bean.
*/
@Override
public Object create(Object parent, QName qName)
throws ConfigException
{
return _configType.create(parent, qName);
}
/**
* Sets the value of the attribute
*/
@Override
public void setValue(Object bean, QName name, Object value)
throws ConfigException
{
XmlBeanConfig<T> customBean = (XmlBeanConfig<T>) bean;
if (value instanceof Annotation) {
customBean.addAnnotation((Annotation) value);
}
else {
AnnotationConfig annConfig = (AnnotationConfig) value;
customBean.addAnnotation(annConfig.replace());
}
}
/**
* Sets the value of the attribute
*/
@Override
public void setText(Object parent, QName name, String text)
throws ConfigException
{
Object bean = create(parent, name);
Attribute attr = _configType.getAttribute(VALUE);
if (attr != null) {
attr.setText(bean, VALUE, text);
setValue(parent, name, bean);
}
else if (text == null || "".equals(text)) {
// server/2pad
setValue(parent, name, bean);
}
else {
throw new ConfigException(L.l("'{0}' does not have a 'value' attribute, so it cannot have a text value.",
name));
}
}
}