Class FileSystemValidator

src/tools/ConfigMetaType.java:390–443

Title: FileSystemValidator Description: Validator for files and directories

   * <p>Description: Validator for files and directories</p> 
   */
  public static class FileSystemValidator implements ArgValueValidator {
    private final boolean dir;
    private final boolean mustExist;
    
    /**
     * Creates a new FileSystemValidator
     * @param dir true for validating directories, false for files
     * @param mustExist true if the target must exist, false if it can be created if it does not exist
     */
    public FileSystemValidator(boolean dir, boolean mustExist) {
      this.dir = dir;
      this.mustExist = mustExist;
    }

    /**
     * {@inheritDoc}
     * @see net.opentsdb.tools.ArgValueValidator#validate(net.opentsdb.tools.ConfigArgP.ConfigurationItem)
     */
    @Override
    public void validate(final ConfigurationItem citem) {
      String value = citem.getValue();
      File target = new File(value);
      if(mustExist) {
        if(!target.exists()) throw new IllegalArgumentException((dir ? "Directory [" : " File [") + value + "] does not exist for " + citem.getName());
        if(dir) {
          if(!target.isDirectory()) throw new IllegalArgumentException(("[") + value + "] is a file not a directory for " + citem.getName());
        } else {
          if(!target.isFile()) throw new IllegalArgumentException(("[") + value + "] is a directory not a file for " + citem.getName());
        }
      } else {
        if(dir) {
          if(!target.exists()) {
            if(!target.mkdirs()) throw new IllegalArgumentException(("Could not create directory [") + value + "] for " + citem.getName());
          } else {
            if(!target.isDirectory()) throw new IllegalArgumentException(("[") + value + "] is a file not a directory for " + citem.getName());
          }
        } else {
          if(!target.getParentFile().exists()) {
            if(!target.getParentFile().mkdirs()) throw new IllegalArgumentException(("Could not create parent directory for file [") + value + "] for " + citem.getName());
          }
          
          if(!target.exists()) {
            try {           
              if(!target.createNewFile()) throw new IllegalArgumentException(("Could not create file [") + value + "] for " + citem.getName());
            } catch (IOException e) {
              throw new IllegalArgumentException(("Could not create file [") + value + "] for " + citem.getName());
            } finally {
              target.delete();
            }
          }
        }
      }
    }
  }
  
  /**
   * <p>Title: TimeZoneValidator</p>