code: protected boolean readBoolean(final String parameter) {
  
          return parameter != null && "true".equalsIgnoreCase(parameter) || "yes".equalsIgnoreCase(parameter) || "1".equalsIgnoreCase(parameter);
      }
docs: Read a boolean string value.<br />
  Values allowed are (case insensitive):
  <ul>
  <li>true</li>
  <li>yes</li>
  <li>1</li>
  </ul>
  
  @param parameter the boolean string value
  
  @return the boolean or false