Bug 124067 When select the XML file, the relative path should be supported.
Description: When select the XML file, the relative path should be supported. Step to reproduce: 1. new a report 2. new a datasource and dataset based on a XML file 3. select the XML file, the file relative path should be used. Actual result: only the absolute path is supported. Expect result: the relative and absolute path are supported.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
assert ( propName != null );
				String propValue;
				
				
				String bindingExpr = source.getPropertyBinding( propName );
				if ( needPropertyBinding( ) && bindingExpr != null
						&& bindingExpr.length( ) > 0 )
				{
					propValue = evaluatePropertyBindingExpr( bindingExpr );
				} else
				{
					propValue = ( String ) staticProps.get( propName );
				}
				dteSource.addPublicProperty( ( String ) propName, propValue );
			}
		}
		
		Iterator elmtIter = source.privateDriverPropertiesIterator( );
		if ( elmtIter != null )
		{
			while ( elmtIter.hasNext( ) )
			{
				ExtendedPropertyHandle modelProp = ( ExtendedPropertyHandle ) elmtIter
						.next( );
				dteSource.addPrivateProperty( modelProp.getName( ), modelProp
						.getValue( ) );
			}
		}
		return dteSource;
	}