/**
 * Copyright (c) 2005-2006 IBM Corporation and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 * 
 * Contributors: 
 *   IBM - Initial API and implementation
 */
package org.eclipse.xsd.ecore.exporter;

import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.ENamedElement;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.emf.ecore.util.ExtendedMetaData;
import org.eclipse.emf.ecore.xml.type.util.XMLTypeValidator;

import org.eclipse.xsd.XSDImport;
import org.eclipse.xsd.XSDSchema;
import org.eclipse.xsd.XSDSchemaDirective;
import org.eclipse.xsd.ecore.EcoreXMISchemaBuilder;
import org.eclipse.xsd.ecore.EcoreXMLSchemaBuilder;

/**
 * @since 2.2.0
 */
public class XMIExporter extends XSDExporter
{
  @Override
  public String getID()
  {
    return "org.eclipse.xsd.ecore.exporter.xmi";
  }
  
  @Override
  protected String getDefaultArtifactLocation(EPackage ePackage)
  {
    return getDefaultArtifactFileName(ePackage) + "XMI.xsd";
  }
  
  @Override
  protected XSDSchema getSchema(EPackage ePackage)
  {
    if (mapBuilder == null)
    {
      mapBuilder = new EcoreXMISchemaBuilder();
    }
    return 
      (XSDSchema)((EcoreXMISchemaBuilder)mapBuilder).generate
        (ePackage, 
         new EcoreXMLSchemaBuilder.QNameMap()
         {
           ExtendedMetaData extendedMetaData = genModel.getExtendedMetaData();

           public String getName(ENamedElement element)
           {
             if (element instanceof EStructuralFeature)
             {
               String name = extendedMetaData.getName((EStructuralFeature)element);
               if (XMLTypeValidator.INSTANCE.validateNCName(name, null, null))
               {
                 return name;
               }
             }
             else if (element instanceof EClassifier)
             {
               String name = extendedMetaData.getName((EClassifier)element);
               if (XMLTypeValidator.INSTANCE.validateNCName(name, null, null))
               {
                 return name;
               }
             }
             return element.getName();
           }
         }).iterator().next();
  }

  @Override
  protected String computeSchemaLocation(XSDSchemaDirective xsdSchemaDirective, URI artifactURI)
  {
    if (artifactURI != null)
    {
      return artifactURI.toString();
    }
    else if ("XMI.xsd".equals(xsdSchemaDirective.getSchemaLocation()) && 
               xsdSchemaDirective instanceof XSDImport && 
               ExtendedMetaData.XMI_URI.equals(((XSDImport)xsdSchemaDirective).getNamespace()) &&
               !EcorePackage.eNS_URI.equals(xsdSchemaDirective.getSchema().getTargetNamespace()))
    {
      return "platform:/plugin/org.eclipse.emf.ecore/model/XMI.xsd";
    }
    else if (EcorePackage.eNS_URI.equals(xsdSchemaDirective.getSchemaLocation()))
    {
      return "platform:/plugin/org.eclipse.emf.ecore/model/EcoreXMI.xsd";
    }
    else
    {
      return xsdSchemaDirective.getSchemaLocation();
    }
  }  
}