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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed 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 java.util.Iterator;
import java.util.List;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.util.ExtendedMetaData;
import commonj.sdo.DataObject;
import commonj.sdo.Type;
import commonj.sdo.helper.TypeHelper;
/**
* Look up a Type given the uri and typeName or interfaceClass.
* SDO Types are available through the
* getType("commonj.sdo", typeName) method.
* Defines Types from DataObjects.
*/
public class TypeHelperImpl implements TypeHelper
{
protected ExtendedMetaData extendedMetaData;
public TypeHelperImpl(ExtendedMetaData extendedMetaData)
{
this.extendedMetaData = extendedMetaData;
}
public Type getType(String uri, String typeName)
{
EPackage ePackage = extendedMetaData.getPackage(uri);
if (ePackage != null)
{
EClassifier eClassifier = ePackage.getEClassifier(typeName);
if (eClassifier == null)
{
eClassifier = extendedMetaData.getType(ePackage, typeName);
}
return (Type)eClassifier;
}
return null;
}
public Type getType(Class interfaceClass)
{
//TODO more efficient implementation ... this is a really bad one!
for (Iterator iter = EPackage.Registry.INSTANCE.values().iterator(); iter.hasNext(); )
{
Object value = iter.next();
if (value instanceof EPackage)
{
EPackage ePackage = (EPackage)value;
for (Iterator iter2 = ePackage.getEClassifiers().iterator(); iter2.hasNext(); )
{
EClassifier eClassifier = (EClassifier)iter2.next();
if (eClassifier.getInstanceClass() == interfaceClass)
{
return (Type)eClassifier;
}
}
}
}
return null;
}
public Type define(DataObject type)
{
throw new UnsupportedOperationException(); //TODO
}
public List /*Type*/define(List /*DataObject*/types)
{
throw new UnsupportedOperationException(); //TODO
}
}
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