/**
* 把list转为map 方便查找
*
* @param list 数据库有效数据列表
* @return map
*/
private <T extends TrendValue> Map<String, T> tomap(List<T> list) {
Map<String, T> map = new LinkedHashMap<>();
for (T value : list) {
map.put(value.getDate(), value);
}
return map;
}
/**
* 填充数据
*
* @param list 数据库有效数据列表
* @return 填充的数据
*/
private <T extends TrendValue> List<T> fulldata(
List<T> list, DateFormat format, int field, Date start, Date end, Class<T> clazz) {
Map<String, T> map = tomap(list);
Calendar calendar = Calendar.getInstance();
calendar.setTime(start);
List<T> nlist = new ArrayList<>();
while (calendar.getTime().before(end)) {
String keytime = format.format(calendar.getTime());
T value = map.get(keytime);
if (value == null) {
value = AfReflecter.newInstance(clazz);
value.setEmpty();
value.setDate(keytime);
value.setTime(calendar.getTime());
nlist.add(value);
} else {
nlist.add(value);
map.remove(keytime);
}
calendar.add(field, 1);
}
for (Map.Entry<String, T> entry : map.entrySet()) {
nlist.add(entry.getValue());
}
return nlist;
}