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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.das.ldap.emf.read;
import javax.naming.NamingException;
import javax.naming.directory.Attributes;
import javax.naming.ldap.LdapContext;
import org.apache.tuscany.das.ldap.constants.DASConstants;
import org.apache.tuscany.das.ldap.util.QualifiedNameNormalizer;
import org.apache.tuscany.das.ldap.util.SimpleTypeNamespaceQualifier;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.sdo.EDataObject;
public class EDataObjectReader
implements DASConstants
{
/**
* Read.
*
* @param eClass the e class
* @param id the id
* @param containerContext the container context
*
* @return the e data object
*
* @throws NamingException the naming exception
*
* Note that this is more of a utility, as only this class's
* helper is used in restoring the EDataGraph.
*/
public static EDataObject read(
EClass eClass,
String id,
LdapContext containerContext)
throws NamingException
{
String namespaceURI =
eClass.getEPackage().
getNsURI();
EAttribute idEAttribute =
eClass.getEIDAttribute();
String qualifiedIDEAttributeName =
SimpleTypeNamespaceQualifier.
qualify(
namespaceURI,
eClass.getName(),
idEAttribute.getName() );
String normalizedIDEAttributeName =
QualifiedNameNormalizer.
normalize(qualifiedIDEAttributeName);
String eDataObjectRDN =
normalizedIDEAttributeName + "=" + id;
LdapContext eDataObjectContext =
(LdapContext)
containerContext.
lookup(eDataObjectRDN);
Attributes attributes =
eDataObjectContext.getAttributes("");
EDataObject eDataObject =
(EDataObject)
eClass.getEPackage().
getEFactoryInstance().
create(eClass);
EDataObjectReaderHelper.
restoreEAttributes(
eClass,
eDataObject,
namespaceURI,
attributes );
return eDataObject;
}
}
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