public static <M extends Map<K, V>, K, V> M notEmpty(M map, String template, Object... args) {
if (Maps.isEmpty(map)) {
throw new IllegalArgumentException(Strings.format(template, args));
}
return map;
}
/**
* Assert that a Map has entries; that is, it must not be <code>null</code> and must have at least
* one entry.
*
* <pre class="code">
* Assert.notEmpty(map, "Map must have entries");
* </pre>
*
* @param map the map to check
* @param message the exception message to use if the assertion fails
* @throws IllegalArgumentException if the map is <code>null</code> or has no entries
*/
public static <M extends Map<K, V>, K, V> M notEmpty(M map, String message) {
if (Maps.isEmpty(map)) {
throw new IllegalArgumentException(message);
}
return map;
}
