Package com.caucho.config.j2ee

Source Code of com.caucho.config.j2ee.EjbHandler

/*
* 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.j2ee;

import java.lang.reflect.Field;

import javax.ejb.EJB;
import javax.enterprise.inject.spi.AnnotatedField;
import javax.enterprise.inject.spi.Bean;

import com.caucho.config.ConfigException;
import com.caucho.config.inject.InjectManager;
import com.caucho.config.program.BeanValueGenerator;
import com.caucho.config.program.ConfigProgram;
import com.caucho.config.program.FieldGeneratorProgram;
import com.caucho.util.L10N;

/**
* Handles the @EJB annotation for JavaEE
*/
public class EjbHandler extends JavaeeInjectionHandler {
  private static final L10N L = new L10N(EjbHandler.class);
 
  public EjbHandler(InjectManager manager)
  {
    super(manager);
  }
 
  @Override
  public ConfigProgram introspectField(AnnotatedField<?> field)
  {
    EJB ejb = field.getAnnotation(EJB.class);
   
    return generateContext(field, ejb);
  }

  private ConfigProgram generateContext(AnnotatedField<?> field,
                                        EJB ejb)
    throws ConfigException
  {
    String name = ejb.name();
    String mappedName = ejb.mappedName();

    Field javaField = field.getJavaMember();
   
    String location = getLocation(javaField);

    Class<?> bindType = javaField.getType();
   
    /*
    if (! "".equals(pContext.name()))
      jndiName = pContext.name();
      */

    Bean<?> bean;
   
    bean = bind(location, bindType, name);
   
    if (bean == null)
      bean = bind(location, bindType, mappedName);

    if (bean != null) {
      // valid bean
    }
    else if (! "".equals(name)) {
      throw new ConfigException(location + L.l("name='{0}' is an unknown @EJB.",
                                               name));
    }
    else if (! "".equals(mappedName)) {
      throw new ConfigException(location + L.l("mappedName='{0}' is an unknown @EJB.",
                                               mappedName));

    }
    else {
      throw new ConfigException(location + L.l("@EJB cannot find any defined EJBs.  No @EJB with type='{0}'",
                 bindType));
    }

    // bindJndi(location, jndiName, bean);

    // return new ComponentValueGenerator(location, (AbstractBean) bean);
   
    BeanValueGenerator gen
      = new BeanValueGenerator(location, bean);
   
    return new FieldGeneratorProgram(javaField, gen);
  }
}
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