*/
package org.opendaylight.controller.config.persist.storage.file.xml.model;
+import com.google.common.base.Preconditions;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.bind.ValidationEventHandler;
String xml = rt.getWriter().toString();
int beginIndex = xml.indexOf(START_TAG) + START_TAG.length();
int endIndex = xml.indexOf(END_TAG);
+ Preconditions.checkArgument(beginIndex != -1 && endIndex != -1,
+ "Unknown element present in config snapshot(expected only configuration): %s", xml);
return xml.substring(beginIndex, endIndex);
}