Пример #1
0
  /**
   * Registers a command with the given name is possible. Also uses fallbackPrefix to create a
   * unique name.
   *
   * @param label the name of the command, without the '/'-prefix.
   * @param command the command to register
   * @param isAlias whether the command is an alias
   * @param fallbackPrefix a prefix which is prepended to the command for a unique address
   * @return true if command was registered, false otherwise.
   */
  private synchronized boolean register(
      String label, Command command, boolean isAlias, String fallbackPrefix) {
    knownCommands.put(fallbackPrefix + ":" + label, command);
    if ((command instanceof VanillaCommand || isAlias) && knownCommands.containsKey(label)) {
      // Request is for an alias/fallback command and it conflicts with
      // a existing command or previous alias ignore it
      // Note: This will mean it gets removed from the commands list of active aliases
      return false;
    }

    boolean registered = true;

    // If the command exists but is an alias we overwrite it, otherwise we return
    Command conflict = knownCommands.get(label);
    if (conflict != null && conflict.getLabel().equals(label)) {
      return false;
    }

    if (!isAlias) {
      command.setLabel(label);
    }
    knownCommands.put(label, command);

    return registered;
  }
Пример #2
0
  /** {@inheritDoc} */
  public boolean register(String label, String fallbackPrefix, Command command) {
    label = label.toLowerCase().trim();
    fallbackPrefix = fallbackPrefix.toLowerCase().trim();
    boolean registered = register(label, command, false, fallbackPrefix);

    Iterator<String> iterator = command.getAliases().iterator();
    while (iterator.hasNext()) {
      if (!register(iterator.next(), command, true, fallbackPrefix)) {
        iterator.remove();
      }
    }

    // If we failed to register under the real name, we need to set the command label to the direct
    // address
    if (!registered) {
      command.setLabel(fallbackPrefix + ":" + label);
    }

    // Register to us so further updates of the commands label and aliases are postponed until its
    // reregistered
    command.register(this);

    return registered;
  }