/*
* 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 SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.config.types;
import java.lang.reflect.Type;
import java.util.LinkedHashSet;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.PostConstruct;
import javax.enterprise.context.spi.CreationalContext;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import com.caucho.config.ConfigException;
import com.caucho.config.Names;
import com.caucho.config.inject.BeanBuilder;
import com.caucho.config.inject.DefaultLiteral;
import com.caucho.config.inject.InjectManager;
import com.caucho.el.Expr;
import com.caucho.naming.Jndi;
import com.caucho.util.L10N;
/**
* Configuration for the env-entry pattern.
*/
public class EnvEntry extends ResourceGroupConfig implements Validator {
private static final L10N L = new L10N(EnvEntry.class);
private static final Logger log = Logger.getLogger(EnvEntry.class.getName());
private String _name;
private Class<?> _type;
private String _value;
private Object _objectValue;
public EnvEntry()
{
}
@Override
public void setId(String id)
{
}
/**
* Sets the env-entry-name
*/
public void setEnvEntryName(String name)
{
_name = name;
}
/**
* Gets the env-entry-name
*/
public String getEnvEntryName()
{
return _name;
}
/**
* Sets the env-entry-type
*/
public void setEnvEntryType(Class<?> type)
{
_type = type;
}
/**
* Gets the env-entry-type
*/
public Class<?> getEnvEntryType()
{
return _type;
}
/**
* Sets the env-entry-value
*/
public void setEnvEntryValue(RawString value)
{
_value = value.getValue();
}
/**
* Gets the env-entry-value
*/
public String getEnvEntryValue()
{
return _value;
}
/**
* Gets the env-entry-value
*/
// XXX: ejb/0fd0 vs ejb/0g03
@PostConstruct
public void init()
throws Exception
{
if (_name == null)
throw new ConfigException(L.l("env-entry needs 'env-entry-name' attribute"));
/*
if (_type == null)
throw new ConfigException(L.l("env-entry needs 'env-entry-type' attribute"));
*/
super.init();
// actually, should register for validation
/*
if (_value == null)
return;
*/
if (! isProgram())
deploy();
}
/**
* Configures the bean using the current program.
*
* @param bean the bean to configure
* @param env the Config environment
*/
@Override
public <T> void inject(T bean, CreationalContext<T> env)
{
}
@Override
public Object getValue()
{
if (getLookupName() != null) {
try {
return Jndi.lookup(getLookupName());
} catch (Exception e) {
throw ConfigException.create(e);
}
}
if (_objectValue == null)
deploy();
/*
if (_objectValue == null)
throw new NullPointerException(toString());
*/
return _objectValue;
}
@Override
public void deploy()
{
if (_objectValue != null)
return;
super.deploy();
Thread thread = Thread.currentThread();
ClassLoader loader = thread.getContextClassLoader();
try {
// ejb/8220, tck
if (getJndiClassLoader() != null)
thread.setContextClassLoader(getJndiClassLoader());
Jndi.bindDeepShort(_name, this);
} catch (Exception e) {
e.printStackTrace();
throw ConfigException.create(e);
} finally {
thread.setContextClassLoader(loader);
}
if (_value == null)
return;
LinkedHashSet<Type> types = new LinkedHashSet<Type>();
Class<?> type = _type;
Object value = _value;
if (type == null)
type = inferTypeFromInjection();
if (type != null)
types.add(type);
else
types.add(value.getClass());
if (getLookupName() != null) {
}
else if (type == null) {
}
else if (type.equals(String.class)) {
}
else if (Boolean.class.equals(type) || boolean.class.equals(type)) {
if (_value != null)
value = new Boolean("true".equalsIgnoreCase(_value));
else
value = Boolean.FALSE;
types.add(boolean.class);
}
else if (Byte.class.equals(type) || byte.class.equals(type)) {
value = new Byte((byte) Expr.toLong(_value, null));
types.add(byte.class);
}
else if (Short.class.equals(type) || short.class.equals(type)) {
value = new Short((short) Expr.toLong(_value, null));
types.add(short.class);
}
else if (Integer.class.equals(type) || int.class.equals(type)) {
value = new Integer((int) Expr.toLong(_value, null));
types.add(int.class);
}
else if (Long.class.equals(type) || long.class.equals(type)) {
value = new Long(Expr.toLong(_value, null));
types.add(long.class);
}
else if (Float.class.equals(type) || float.class.equals(type)) {
value = new Float((float) Expr.toDouble(_value, null));
types.add(float.class);
}
else if (Double.class.equals(type) || double.class.equals(type)) {
value = new Double(Expr.toDouble(_value, null));
types.add(double.class);
}
else if (Character.class.equals(type) || char.class.equals(type)) {
String v = Expr.toString(_value, null);
if (v == null || v.length() == 0)
value = new Character(' ');
else
value = new Character(v.charAt(0));
types.add(char.class);
}
else if (Enum.class.isAssignableFrom(type)) {
value = Enum.valueOf((Class) type, _value);
}
else if (Class.class.isAssignableFrom(type)) {
try {
loader = Thread.currentThread().getContextClassLoader();
value = Class.forName(_value, false, loader);
} catch (Exception e) {
throw ConfigException.create(e);
}
}
_objectValue = value;
if (value == null)
return;
InjectManager cdiManager = InjectManager.create();
// XXX: EJB TCK
if (cdiManager.getBeans(_name).size() > 0)
return;
BeanBuilder<?> builder = cdiManager.createBeanFactory(value.getClass());
// CDI names can't have '.'
if (_name.indexOf('.') < 0)
builder.name(_name);
// server/1516
builder.qualifier(Names.create(_name));
builder.qualifier(DefaultLiteral.DEFAULT);
builder.type(types);
cdiManager.addBean(builder.singleton(value));
}
/**
* Validates the env-entry, i.e. checking that it exists in
* JNDI.
*/
@Override
public void validate()
throws ConfigException
{
Object obj = null;
try {
obj = new InitialContext().lookup("java:comp/env/" + _name);
} catch (NamingException e) {
log.log(Level.FINER, e.toString(), e);
}
if (obj == null)
throw error(L.l("env-entry '{0}' was not configured. All resources defined by <env-entry> tags must be defined in a configuration file.",
_name));
}
public String toString()
{
return getClass().getSimpleName() + "[" + _name + "]";
}
}