private List<ConfigSource> getFileSources() {
    ArrayList<ConfigSource> result = new ArrayList<>();
    for (ConfigSource cs : getAttSourceMap().values()) {
      if (cs.getType() == ConfigSource.Type.FILE || cs.getType() == ConfigSource.Type.SECURE_FILE) {
        if (!result.contains(cs)) {
          result.add(cs);
        }
      }
    }
    return result;
  }
Set to true if most of the attributes can be modified. Set to false if most of the attributes
are read only.
geode-core/src/main/java/org/apache/geode/internal/AbstractConfig.java