static void filter(Table table, String filterStr) throws Exception {
List<HMap> list = table.readAll(Filter.parse(filterStr));
System.out.println(JsonWriter.writeToString(JsonUtils.ctx(), list));
}
static void readAll(Table table) throws Exception {
Filter filter = Filter.parse("*");
List<HMap> list = table.readAll(filter);
System.out.println(JsonWriter.writeToString(JsonUtils.ctx(), list));
}