question: private void processImportElement ( StartElement element , XMLEventWriter writer , Properties metadata ) throws XMLStreamException , IOException { File file = new File ( baseDir , getAttributeValue ( element , qNameFile , null , "Attribute 'file' is missing or empty." ) ) ; if ( ! file . exists ( ) ) { throw new FileNotFoundException ( "Missing file to import:" + file . getPath ( ) ) ; } boolean skipRoot = Boolean . valueOf ( getAttributeValue ( element , qNameSkipRoot , "false" , null ) ) ; boolean recImport = Boolean . valueOf ( getAttributeValue ( element , qNameRecursiveImport , "true" , null ) ) ; if ( file . isFile ( ) ) { importFile ( file , skipRoot , writer , metadata ) ; } else { logger . debug ( "Processing dir " + file ) ; Collection < File > files = listFiles ( file , recImport ) ; for ( File childFile : files ) { importFile ( childFile , skipRoot , writer , metadata ) ; } } }
target:  This method processes the 'import' element, replacing it by the data from the relevant files.