/**
* 计算分割段数
*
* @param period 时段周期 [时|日|周|月]
* @param start 开始时间
* @param end 结束时间
* @return 段数
*/
private int countDays(Period period, Date start, Date end) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(start);
int count = 0;
while (calendar.getTime().before(end)) {
count++;
calendar.add(period.getField(), 1);
}
return count;
}
/**
* 检测时间分段合理性
*
* @param period 时段周期 [时|日|周|月]
* @param start 开始时间
* @param end 结束时间
*/
private void doCheckPeriod(Period period, Date start, Date end) throws ServiceException {
Calendar calendar = Calendar.getInstance();
calendar.setTime(start);
int count = 0, max = 200;
while (calendar.getTime().before(end)) {
if (count++ > max) {
throw new ServiceException("数据量偏大，请调整时间跨度再试！");
}
calendar.add(period.getField(), 1);
}
}
/**
* 事件统计-趋势
*
* @param siteId 网站ID
* @param subsite 子站ID
* @param offset 偏移 0=当天 -1=昨天 1=明天 -2 2 -3...
* @param span 跨度 [day|week|month|year]
* @param start 开始时间 ("yyyyMMddHHmmss")
* @param end 结束时间 ("yyyyMMddHHmmss")
* @return 事件统计-排行 {status:[true|false],data:[{name,num,rn,user,ru},...]}
*/
@RequestMapping("event/trend/{period:hour|day|week|month}")
public Object eventTrend(
@PathVariable int siteId,
@PathVariable Period period,
String subsite,
Integer offset,
Period span,
Date start,
Date end) {
end = timeEnd(end, span, offset);
start = timeStart(start, span, offset);
String idsite = getIdSite(siteId, subsite);
List<EventTrendValue> list = service.eventTrend(idsite, period, start, end);
list = fulldata(list, period.getFormat(), period.getField(), start, end, EventTrendValue.class);
return list;
}
/**
* 根据周期和便宜计算结束时间
*
* @param end 结束时间
* @param span 时间跨度
* @param offset 偏移
* @return 结束时间
*/
private Date timeEnd(Date end, Period span, Integer offset) {
if (span != null && offset != null /* && !Period.hour.equals(span)*/) {
DateFormat format = span.getFormat();
Calendar calendar = Calendar.getInstance();
try {
calendar.setTime(format.parse(format.format(calendar.getTime())));
} catch (ParseException e) {
e.printStackTrace();
}
calendar.add(span.getField(), offset + 1);
return calendar.getTime();
}
if (end == null) {
return timeEnd(new Date(), Period.year, 1000);
}
return end;
}
/**
* 根据周期和便宜计算开始时间
*
* @param start 开始时间
* @param span 时间跨度
* @param offset 偏移
* @return 开始时间
*/
private Date timeStart(Date start, Period span, Integer offset) {
if (span != null && offset != null) {
DateFormat format = span.getFormat();
Calendar calendar = Calendar.getInstance();
try {
calendar.setTime(format.parse(format.format(calendar.getTime())));
} catch (ParseException e) {
e.printStackTrace();
}
calendar.add(span.getField(), offset);
return calendar.getTime();
}
if (start == null) {
return timeStart(new Date(), Period.year, -1000);
}
return start;
}