/*
* Copyright (c) 1998-2010 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.attribute;
import java.lang.annotation.Annotation;
import java.lang.reflect.*;
import javax.enterprise.context.spi.CreationalContext;
import com.caucho.config.*;
import com.caucho.config.program.ConfigProgram;
import com.caucho.config.cfg.BeanConfig;
import com.caucho.config.type.*;
import com.caucho.config.types.AnnotationConfig;
import com.caucho.config.types.CustomBeanConfig;
import com.caucho.config.xml.XmlConfigContext;
import com.caucho.util.L10N;
import com.caucho.xml.QName;
public class AddAttribute extends Attribute {
private static final L10N L = new L10N(AddAttribute.class);
public static final AddAttribute ATTR = new AddAttribute();
private final ConfigType _configType;
private final Method _setMethod;
private AddAttribute()
{
this(null, TypeFactory.getType(CustomBeanConfig.class));
}
public AddAttribute(Method setMethod, ConfigType configType)
{
_configType = configType;
_setMethod = setMethod;
}
public ConfigType getConfigType()
{
return _configType;
}
public Method getMethod()
{
return _setMethod;
}
/**
* Creates the child bean.
*/
@Override
public Object create(Object parent, QName qName)
throws ConfigException
{
String uri = qName.getNamespaceURI();
String localName = qName.getLocalName();
if (uri.equals("urn:java:com.caucho.config.driver")) {
TypeFactory factory = TypeFactory.getFactory();
Class api;
if (parent instanceof BeanConfig) {
api = ((BeanConfig) parent).getBeanConfigClass();
}
else if (_setMethod != null)
api = _setMethod.getParameterTypes()[0];
else
api = _configType.getType();
Class cl = factory.getDriverClassByScheme(api, localName);
return new CustomBeanConfig(qName, cl);
}
if (! uri.startsWith("urn:java:"))
throw new IllegalStateException(L.l("'{0}' is an unexpected namespace, expected 'urn:java:...'", uri));
String packageName = uri.substring("uri:java:".length());
Class cl = TypeFactory.loadClass(packageName, localName);
if (cl == null) {
ConfigType type = TypeFactory.getFactory().getEnvironmentType(qName);
if (type != null)
return type.create(parent, qName);
throw new ConfigException(L.l("'{0}.{1}' is an unknown class for element '{2}'",
packageName, localName, qName));
}
if (Annotation.class.isAssignableFrom(cl)) {
return new AnnotationConfig(cl);
}
else {
CustomBeanConfig config = new CustomBeanConfig(qName, cl);
// config.setScope("singleton");
return config;
}
}
/**
* Sets the value of the attribute as text
*/
public void setText(Object bean, QName name, String value)
throws ConfigException
{
Object objValue = create(bean, name);
if (objValue instanceof CustomBeanConfig) {
CustomBeanConfig config = (CustomBeanConfig) objValue;
if (! value.trim().equals("")) {
config.addArg(new TextArgProgram(value));
}
config.init();
}
setValue(bean, name, objValue);
}
/**
* Sets the value of the attribute
*/
public void setValue(Object bean, QName name, Object value)
throws ConfigException
{
try {
if (value instanceof CustomBeanConfig) {
CustomBeanConfig config = (CustomBeanConfig) value;
value = config.toObject();
}
else if (value instanceof AnnotationConfig) {
AnnotationConfig config = (AnnotationConfig) value;
value = config.replace();
}
if (_setMethod != null && value != null) {
if (! _setMethod.getParameterTypes()[0].isAssignableFrom(value.getClass()))
throw new ConfigException(L.l("'{0}.{1}' is not assignable from {2}",
_setMethod.getDeclaringClass().getSimpleName(),
_setMethod.getName(),
value));
_setMethod.invoke(bean, value);
}
} catch (Exception e) {
throw ConfigException.create(e);
}
}
static class TextArgProgram extends ConfigProgram {
private String _arg;
TextArgProgram(String arg)
{
_arg = arg;
}
@Override
public <T> void inject(T bean, CreationalContext<T> env)
{
throw new UnsupportedOperationException(getClass().getName());
}
public Object configure(ConfigType type, CreationalContext<?> env)
throws ConfigException
{
return type.valueOf(_arg);
}
}
}