public String getDirectoryParameter(String parameter) throws IOException {
String dir = getStringParameter(parameter);
if (dir.length() > 0) {
File temp = new File(dir);
if (!temp.exists()) {
FileUtil.mkdirs(temp);
}
if (!temp.isDirectory()) {
throw new IOException("Configuration error. This is not a directory: " + dir);
}
}
return dir;
}
