OpenMBeanAttributeInfoSupport.java 文件源码

static <T> Descriptor makeDescriptor(OpenType<T> openType,
                                     T defaultValue,
                                     T[] legalValues,
                                     Comparable<T> minValue,
                                     Comparable<T> maxValue) {
    Map<String, Object> map = new HashMap<String, Object>();
    if (defaultValue != null)
        map.put("defaultValue", defaultValue);
    if (legalValues != null) {
        Set<T> set = new HashSet<T>();
        for (T v : legalValues)
            set.add(v);
        set = Collections.unmodifiableSet(set);
        map.put("legalValues", set);
    }
    if (minValue != null)
        map.put("minValue", minValue);
    if (maxValue != null)
        map.put("maxValue", maxValue);
    if (map.isEmpty()) {
        return openType.getDescriptor();
    } else {
        map.put("openType", openType);
        return new ImmutableDescriptor(map);
    }
}