/*
* 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.j2ee;
import com.caucho.config.inject.InjectManager;
import com.caucho.config.program.ValueGenerator;
import com.caucho.config.program.ConfigProgram;
import com.caucho.config.xml.XmlConfigContext;
import com.caucho.config.ConfigException;
import com.caucho.config.Names;
import com.caucho.naming.*;
import com.caucho.util.L10N;
import javax.naming.*;
import javax.persistence.*;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.util.AnnotationLiteral;
import javax.rmi.*;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Generator for the JavaEE JNDI Resources
*/
public class JavaeeResourceGenerator extends ValueGenerator {
private static final Logger log
= Logger.getLogger(JavaeeResourceGenerator.class.getName());
private static final L10N L = new L10N(JavaeeResourceGenerator.class);
private static HashMap<Class<?>,Class<?>> _primitiveTypeMap
= new HashMap<Class<?>,Class<?>>();
private final String _location;
private final Class<?> _fieldType;
private final Class<?> _type;
private final String _jndiName;
private final String _mappedName;
private final String _beanName;
private InjectManager _beanManager;
private Bean<?> _bean;
JavaeeResourceGenerator(String location,
Class<?> fieldType,
Class<?> type,
String jndiName,
String mappedName,
String beanName)
{
_beanManager = InjectManager.create();
if (! fieldType.isAssignableFrom(type))
type = fieldType;
if (type.isPrimitive())
type = _primitiveTypeMap.get(type);
_location = location;
_fieldType = fieldType;
_type = type;
_jndiName = jndiName;
_mappedName = mappedName;
_beanName = beanName;
}
/**
* Returns the expected type
*/
@Override
public Class getType()
{
return _type;
}
/**
* Creates the value.
*/
public Object create()
{
Object value = Jndi.lookup(_jndiName);
// XXX: can use lookup-link and store the proxy
if (value != null)
return value;
Bean bean = _bean;
if (_bean == null)
bean = bind();
CreationalContext cxt = _beanManager.createCreationalContext(bean);
value = _beanManager.getReference(bean, bean.getBeanClass(), cxt);
return value;
}
synchronized private Bean bind()
{
Bean bean = null;
// ejb/0f92
/*
if (mappedName == null || "".equals(mappedName))
mappedName = jndiName;
*/
_bean = bind(_location, _type, _mappedName);
if (_bean != null) {
bindJndi(_location, _jndiName, _bean);
return _bean;
}
if (_bean == null && _beanName != null && ! "".equals(_beanName)) {
_bean = bind(_location, _type, _beanName);
if (_bean != null) {
bindJndi(_location, _jndiName, _bean);
return _bean;
}
}
if (_bean == null && _jndiName != null && ! "".equals(_jndiName)) {
_bean = bind(_location, _type, _jndiName);
if (_bean != null) {
bindJndi(_location, _jndiName, _bean);
return _bean;
}
}
if (_bean == null)
_bean = bind(_location, _type);
if (_bean != null) {
bindJndi(_location, _jndiName, _bean);
return _bean;
}
else
throw new ConfigException(_location + L.l("{0} with mappedName={1}, beanName={2}, and jndiName={3} does not match anything",
_type.getName(),
_mappedName,
_beanName,
_jndiName));
}
private Object getJndiValue(Class type)
{
if (_jndiName == null || "".equals(_jndiName))
return null;
try {
Object value = Jndi.lookup(_jndiName);
if (value != null)
return PortableRemoteObject.narrow(value, type);
else
return null;
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
return null;
}
}
public Bean bind(String location, Class type)
{
return bind(location, type, null);
}
public Bean bind(String location, Class type, String name)
{
InjectManager webBeans = _beanManager;
Set<Bean<?>> beans = null;
if (name != null)
beans = webBeans.getBeans(type, Names.create(name));
if (beans != null && beans.size() != 0)
return webBeans.resolve(beans);
beans = webBeans.getBeans(type, new AnnotationLiteral<Any>() {});
if (beans == null || beans.size() == 0)
return null;
for (Bean bean : beans) {
// XXX: dup
if (name == null || name.equals(bean.getName()))
return bean;
}
return null;
}
private static void bindJndi(String location, String name, Object value)
{
try {
if (! "".equals(name))
Jndi.bindDeepShort(name, value);
} catch (NamingException e) {
throw new ConfigException(location + e.getMessage(), e);
}
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append(getClass().getSimpleName());
sb.append("[");
sb.append(_type.getName());
if (_mappedName != null) {
sb.append(", mappedName=");
sb.append(_mappedName);
}
if (_jndiName != null) {
sb.append(", jndiName=");
sb.append(_jndiName);
}
sb.append("]");
return sb.toString();
}
static {
_primitiveTypeMap.put(boolean.class, Boolean.class);
_primitiveTypeMap.put(byte.class, Byte.class);
_primitiveTypeMap.put(char.class, Character.class);
_primitiveTypeMap.put(short.class, Short.class);
_primitiveTypeMap.put(int.class, Integer.class);
_primitiveTypeMap.put(long.class, Long.class);
_primitiveTypeMap.put(float.class, Float.class);
_primitiveTypeMap.put(double.class, Double.class);
}
}