xmlfilereading

def getListOfDiagramFilesFromDirectory(dir: String): Array[Option[Elem]] = {
    val canonicalPath = getClass.getResource("/".concat(dir))
    var listOfFiles: ArrayBuffer[Option[Elem]] = ArrayBuffer[Option[Elem]]()
    if (canonicalPath.getProtocol().equals("jar")) {
      val jarPath: String = canonicalPath.getPath().substring(5, canonicalPath.getPath().indexOf("!"))
      val jar: JarFile = new JarFile(URLDecoder.decode(jarPath, "UTF-8"))
      val entries = jar.entries()
      while(entries.hasMoreElements){
        val entry = entries.nextElement()
        if (entry.isDirectory()) {
          logger.debug(s"Directory: '${entry}'")
        } else {
          logger.debug(s"File: '${entry}'")
          if(entry.getName.contains(dir)){
            if(entry.getName.contains(".bpmn")){
              listOfFiles += getDiagramFile(entry.getName)
            }
          }
        }
      }
    }
    listOfFiles.toArray
  }


  def getDiagramFile(fileInJar: String): Option[Elem] = {
    import java.net.URL
    var result: Option[Elem] = None
    try {
      val u: URL = this.getClass().getResource(fileInJar)
      val f: InputStream = u.openStream()
      result = Some(XML.load(f))
    } catch {
      case e: NullPointerException => {
        logger.error(s"The file '${fileInJar}' is not loaded.")
      }
    }
    result
  }