/***
    * Cecilia ADL Compiler
    * Copyright (C) 2006-2008 STMicroelectronics
    * Copyright (C) 2008 INRIA
    *
    * This library 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 2 of the License, or (at your option) any later version.
   *
   * This library 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 library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   * Contact: fractal@objectweb.org
   *
   * Author:Ali Erdem Ozcan
   *
   * Contributors: Matthieu Leclercq, Lionel Debroux
   */
  
  package org.objectweb.fractal.cecilia.primitive.thinkMC.attributes;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.objectweb.fractal.adl.attributes.Attribute;
  import org.objectweb.fractal.adl.attributes.Attributes;
  import org.objectweb.fractal.adl.components.ComponentContainer;
  import org.objectweb.fractal.api.Component;
  import org.objectweb.fractal.cecilia.adl.AbstractInstantiationTask;
  import org.objectweb.fractal.cecilia.adl.SourceCodeProvider;
  import org.objectweb.fractal.cecilia.adl.attributes.AbstractAttributeVisitor;
  import org.objectweb.fractal.cecilia.adl.file.CodeWriter;
  import org.objectweb.fractal.cecilia.adl.idl.ast.ArrayOf;
  import org.objectweb.fractal.cecilia.adl.idl.ast.Field;
  import org.objectweb.fractal.cecilia.adl.idl.ast.FieldContainer;
  import org.objectweb.fractal.cecilia.adl.idl.ast.IDLDefinitionContainer;
  import org.objectweb.fractal.cecilia.adl.idl.ast.Type;
  import org.objectweb.fractal.cecilia.adl.idl.ast.ComplexType;
  import org.objectweb.fractal.cecilia.adl.idl.ast.PointerOf;
  import org.objectweb.fractal.cecilia.adl.idl.ast.PrimitiveType;
  import org.objectweb.fractal.cecilia.adl.idl.util.CUtil;
  import org.objectweb.fractal.cecilia.adl.idl.util.Util;
  import org.objectweb.fractal.task.core.TaskException;
  import org.objectweb.fractal.task.core.primitive.annotations.ServerInterface;
  import org.objectweb.fractal.task.core.primitive.annotations.ServerInterfaces;
  import org.objectweb.fractal.task.core.primitive.annotations.TaskParameters;
  
  /**
   * Visitor component that builds the instantiation of the attribute data
   * structures of the component for <code>ThinkMC</code> dialect.
   */
  // TODO back port r3677:4017 from AttributeInstanceBuilder.java
  public class AttributeInstantiationVisitor extends AbstractAttributeVisitor {
  
    // ---------------------------------------------------------------------------
    // Implementation of abstract methods of AbstractAttributeVisitor
    // ---------------------------------------------------------------------------
  
    @Override
    protected Component createTask(final ComponentContainer container,
        final Attributes attributes) throws TaskException {
      final Map<String, Type> fieldTypes = new HashMap<String, Type>();
      for (final Field field : ((FieldContainer) ((IDLDefinitionContainer) attributes)
          .getIDLDefinition()).getFields()) {
        fieldTypes.put(field.getName(), Util.getContainedType(field));
      }
      return taskFactoryItf.newPrimitiveTask(new AttributeDefinitionTask(
          attributes.getAttributes(), fieldTypes), container);
    }
  
    // ---------------------------------------------------------------------------
    // Task classes
    // ---------------------------------------------------------------------------
  
    /**
     * Builds definition source code for attribute data structure for the given
     * component node. This task provides the produced source code.
     */
    @TaskParameters("componentNode")
    @ServerInterfaces(@ServerInterface(name = "source-code-provider", signature = SourceCodeProvider.class, record = "role:attributeInstantiation, id:%", parameters = "componentNode"))
    public static class AttributeDefinitionTask extends AbstractInstantiationTask {
  
      protected final Map<String, Type> fieldTypes;
      // the attributes array
      protected final Attribute[]       fields;
  
      // -------------------------------------------------------------------------
      // Task constructor
      // -------------------------------------------------------------------------
  
      /**
       * @param fields the array of fields of the attribute data structure of the
      *            component.
      * @param fieldTypes the attribute types.
      */
     public AttributeDefinitionTask(final Attribute[] fields,
         final Map<String, Type> fieldTypes) {
       this.fields = fields;
       this.fieldTypes = fieldTypes;
     }
 
     // -------------------------------------------------------------------------
     // Implementation of abstract methods of AbstractInstantiationTask
     // -------------------------------------------------------------------------
 
     @Override
     protected String processSourceCode() throws Exception {
       final CodeWriter cw = new CodeWriter();
       cw.append("{");
       for (final Attribute field : fields) {
         final Type attType = fieldTypes.get(field.getName());
         final String attTypeStr = CUtil.buildDeclarationType(attType);
         final String valSym = field.getValue();
 
         // Typecast.
         cw.append('(').append(attTypeStr).append(") ");
 
         // The value was created by AttributeLoader.
         cw.append(valSym).appendln(", ");
       }
       cw.append("}");
       return cw.toString();
     }
   }
 }