1 files changed, 100 insertions, 0 deletions
diff --git a/das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/read/EDataObjectReader.java b/das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/read/EDataObjectReader.java
new file mode 100644
index 0000000000..0c812f4bfc
--- /dev/null
+++ b/das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/read/EDataObjectReader.java
@@ -0,0 +1,100 @@
+/*
+ *  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;
+    }
+}
+\ No newline at end of file