code: public Boolean getParameterAsBool(ConfigKey pConfigKey) {
          String booleanS = getParameter(pConfigKey);
          return Boolean.parseBoolean(booleanS != null ? booleanS : pConfigKey.getDefaultValue());
      }
docs: Get a processing configuration as a boolean value
  
  @param pConfigKey configuration to lookup
  @return boolean value of the configuration, the default value or false if the default value is null