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/**
 *
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.apache.tuscany.sdo.helper;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.util.EcoreUtil;

import commonj.sdo.DataObject;
import commonj.sdo.Type;
import commonj.sdo.helper.DataFactory;
import commonj.sdo.helper.TypeHelper;

/**
 * A Factory for creating DataObjects.  
 * The created DataObjects are not connected to any other DataObjects.
 */
public class DataFactoryImpl implements DataFactory
{
  protected TypeHelper typeHelper;
  
  public DataFactoryImpl(TypeHelper typeHelper)
  {
    this.typeHelper = typeHelper;
  }

  public DataObject create(String uri, String typeName)
  {
    Type type = typeHelper.getType(uri, typeName);
    return create(type);
  }

  public DataObject create(Class interfaceClass)
  {
    //TODO more efficient implementation ... this is a really bad one!
    Type type = typeHelper.getType(interfaceClass);
    return create(type);
  }
  
  public DataObject create(Type type)
  {
    if ((type instanceof EClass) && !type.isAbstract())
    {
      EClass eClass = (EClass)type;
      return (DataObject)EcoreUtil.create(eClass);
    }
    throw new IllegalArgumentException();
  }
}