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Front-end components for the ADL language of the Mind programming model.
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/**
 * Copyright (C) 2009 STMicroelectronics
 *
 * This file is part of "Mind Compiler" is free software: you can redistribute 
 * it and/or modify it under the terms of the GNU Lesser General Public License 
 * as published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 *
 * This program 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.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 *
 * Contact: [email protected]
 *
 * Authors: Matthieu Leclercq
 * Contributors: 
 */

package org.objectweb.fractal.mind.adl.annotation;

import static org.objectweb.fractal.mind.BindingControllerImplHelper.checkItfName;
import static org.objectweb.fractal.mind.BindingControllerImplHelper.listFcHelper;

import java.util.Map;

import org.objectweb.fractal.adl.ADLException;
import org.objectweb.fractal.adl.AbstractLoader;
import org.objectweb.fractal.adl.Definition;
import org.objectweb.fractal.api.NoSuchInterfaceException;
import org.objectweb.fractal.api.control.IllegalBindingException;
import org.objectweb.fractal.mind.annotation.AnnotationChecker;

/**
 * Loader component that checks and resolves annotations.
 */
public class AnnotationLoader extends AbstractLoader {

  // ---------------------------------------------------------------------------
  // Client interfaces
  // ---------------------------------------------------------------------------

  /** The client interface used to check annotations of the loaded definition. */
  public AnnotationChecker annotationCheckerItf;

  // ---------------------------------------------------------------------------
  // Implementation of the Loader interface
  // ---------------------------------------------------------------------------

  public Definition load(final String name, final Map context)
      throws ADLException {
    final Definition def = clientLoader.load(name, context);

    annotationCheckerItf.checkAnnotations(def, context);

    return def;
  }

  // ---------------------------------------------------------------------------
  // Overridden BindingController methods
  // ---------------------------------------------------------------------------

  @Override
  public void bindFc(final String itfName, final Object value)
      throws NoSuchInterfaceException, IllegalBindingException {
    checkItfName(itfName);

    if (itfName.equals(AnnotationChecker.ITF_NAME)) {
      annotationCheckerItf = (AnnotationChecker) value;
    } else {
      super.bindFc(itfName, value);
    }

  }

  @Override
  public String[] listFc() {
    return listFcHelper(super.listFc(), AnnotationChecker.ITF_NAME);
  }

  @Override
  public Object lookupFc(final String itfName) throws NoSuchInterfaceException {
    checkItfName(itfName);

    if (itfName.equals(AnnotationChecker.ITF_NAME)) {
      return annotationCheckerItf;
    } else {
      return super.lookupFc(itfName);
    }
  }

  @Override
  public void unbindFc(final String itfName) throws NoSuchInterfaceException,
      IllegalBindingException {
    checkItfName(itfName);

    if (itfName.equals(AnnotationChecker.ITF_NAME)) {
      annotationCheckerItf = null;
    } else {
      super.unbindFc(itfName);
    }
  }
}