/*
* 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.types;
import com.caucho.config.inject.BeanBuilder;
import com.caucho.config.inject.DefaultLiteral;
import com.caucho.config.inject.InjectManager;
import com.caucho.config.program.ConfigProgram;
import com.caucho.config.Config;
import com.caucho.config.ConfigException;
import com.caucho.config.LineConfigException;
import com.caucho.config.Names;
import com.caucho.el.Expr;
import com.caucho.loader.ClassLoaderListener;
import com.caucho.loader.DynamicClassLoader;
import com.caucho.loader.EnvironmentClassLoader;
import com.caucho.naming.Jndi;
import com.caucho.naming.ObjectProxy;
import com.caucho.util.L10N;
import javax.annotation.PostConstruct;
import javax.enterprise.inject.spi.Bean;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Configuration for the init-param pattern.
*/
public class ResourceRef extends ResourceGroupConfig
implements Validator, ObjectProxy {
private static Logger log = Logger.getLogger(ResourceRef.class.getName());
private static L10N L = new L10N(ResourceRef.class);
private String _location = "";
private String _name;
private Class<?> _type;
private String _description;
private boolean _sharing;
private ConfigProgram _init;
private HashMap<String,String> _params = new HashMap<String,String>();
private Bean<?> _bean;
private Object _value;
private InjectionTarget _injectionTarget;
/**
* Sets the id
*/
public void setId(String id)
{
}
/**
* Sets the configuration location.
*/
public void setConfigLocation(String filename, int line)
{
_location = filename + ":" + line + " ";
}
/**
* Sets the description.
*/
public void setDescription(String description)
{
_description = description;
}
/**
* Sets the injection-target
*/
public void setInjectionTarget(InjectionTarget injectionTarget)
{
_injectionTarget = injectionTarget;
}
/**
* Sets the name
*/
public void setResRefName(String name)
{
_name = name;
}
/**
* Gets the name
*/
public String getResRefName()
{
return _name;
}
/**
* Sets the type
*/
public void setResType(Class<?> type)
{
_type = type;
}
/**
* Sets the auth
*/
public void setResAuth(String auth)
{
}
/**
* Sets the sharing scope
*/
public void setResSharingScope(String share)
{
}
/**
* Sets the type
*/
public void setClassName(Class<?> type)
{
_type = type;
}
/**
* Gets the injection-target
*/
public InjectionTarget getInjectionTarget()
{
return _injectionTarget;
}
/**
* Gets the type;
*/
public Class<?> getResType()
{
return _type;
}
/**
* Sets the init program
*/
public void setInit(ConfigProgram init)
{
_init = init;
}
/**
* Gets the init program;
*/
public ConfigProgram getInit()
{
return _init;
}
/**
* Sets an init-parameter
*/
public void setInitParam(InitParam initParam)
{
_params.putAll(initParam.getParameters());
}
/**
* Initialize the resource.
*/
@PostConstruct
public void init()
throws Exception
{
super.init();
if (_init == null && _params.size() == 0) {
return;
}
try {
Class<?> cl = _type;
if (javax.sql.DataSource.class.equals(_type))
cl = Class.forName("com.caucho.sql.DBPool");
Object obj = cl.newInstance();
if (_init != null)
_init.configure(obj);
Iterator iter = _params.keySet().iterator();
while (iter.hasNext()) {
String key = (String) iter.next();
String value = (String) _params.get(key);
Config.setAttribute(obj, key, value);
}
if (obj instanceof ClassLoaderListener) {
ClassLoaderListener listener = (ClassLoaderListener) obj;
ClassLoader loader = Thread.currentThread().getContextClassLoader();
for (; loader != null; loader = loader.getParent()) {
if (loader instanceof EnvironmentClassLoader) {
((DynamicClassLoader) loader).addListener(listener);
break;
}
}
}
_value = obj;
} catch (Exception e) {
throw ConfigException.create(e);
}
}
@Override
public void deploy()
{
super.deploy();
try {
Object value = Jndi.lookup(_name);
if (value != null)
return;
} catch (Exception e) {
log.log(Level.ALL, e.toString(), e);
}
if (_value == null && getLookupName() == null) {
InjectManager cdiManager = InjectManager.getCurrent();
Set<Bean<?>> beans = cdiManager.getBeans(_type);
_bean = cdiManager.resolve(beans);
}
try {
Jndi.bindDeepShort(_name, this);
} catch (Exception e) {
throw ConfigException.create(e);
}
}
@Override
public Object getValue()
{
Object value;
if (_value != null)
value = _value;
else if (getLookupName() != null)
return Jndi.lookup(getLookupName());
else {
InjectManager cdiManager = InjectManager.getCurrent();
value = cdiManager.getReference(_bean);
}
return value;
}
/**
* Validates the resource-ref, i.e. checking that it exists in
* JNDI.
*/
@Override
public void validate()
throws ConfigException
{
Object obj = getValue();
try {
obj = new InitialContext().lookup("java:comp/env/" + _name);
} catch (NamingException e) {
log.log(Level.FINEST, e.toString(), e);
}
if (obj == null)
throw error(L.l("resource-ref '{0}' was not configured. All resources defined by <resource-ref> tags must be defined in a configuration file.",
_name));
}
public ConfigException error(String msg)
{
if (_location != null)
return new LineConfigException(_location + msg);
else
return new ConfigException(msg);
}
public String toString()
{
return "ResourceRef[" + _name + "]";
}
}