static String determineResourceName ( final AttachmentResource attachmentResource , final boolean includeExtension ) { final String datasourceName = attachmentResource . getDataSource ( ) . getName ( ) ; String resourceName ; if ( ! valueNullOrEmpty ( attachmentResource . getName ( ) ) ) { resourceName = attachmentResource . getName ( ) ; } else if ( ! valueNullOrEmpty ( datasourceName ) ) { resourceName = datasourceName ; } else { resourceName = "resource" + UUID . randomUUID ( ) ; } if ( includeExtension && ! valueNullOrEmpty ( datasourceName ) ) { @ SuppressWarnings ( "UnnecessaryLocalVariable" ) final String possibleFilename = datasourceName ; if ( ! resourceName . contains ( "." ) && possibleFilename . contains ( "." ) ) { final String extension = possibleFilename . substring ( possibleFilename . lastIndexOf ( "." ) ) ; if ( ! resourceName . endsWith ( extension ) ) { resourceName += extension ; } } } else if ( ! includeExtension && resourceName . contains ( "." ) && resourceName . equals ( datasourceName ) ) { final String extension = resourceName . substring ( resourceName . lastIndexOf ( "." ) ) ; resourceName = resourceName . replace ( extension , "" ) ; } return resourceName ; }
Determines the right resource name and optionally attaches the correct extension to the name .