java处理日期合并
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2014-03-25
10:09:13
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public class TimeoffDateDTO {
private Date startTime;
private Date endTime;
public TimeoffDateDTO() {
super();
}
public TimeoffDateDTO(Date startTime, Date endTime) {
super();
this.startTime = startTime;
this.endTime = endTime;
}
/**
* setters and getters
*/
}
/**
* Method used to combine date in list
*/
private List<TimeoffDateDTO> combineDate(List<TimeoffDateDTO> list) {
Stack<Long> s = new Stack<Long>();
Stack<Long> e = new Stack<Long>();
/**
* NOTE:Sort the list before handle it
*/
Collections.sort(list, new TimeoffDateComparator());
s.push(0L);
e.push(0L);
for (TimeoffDateDTO time : list) {
if (time.getStartTime().getTime() > e.peek()) { // no overlap
s.push(time.getStartTime().getTime());
e.push(time.getEndTime().getTime());
} else if (time.getEndTime().getTime() >= e.peek()) { // partial overlap
e.pop();
e.push(time.getEndTime().getTime());
} else if (time.getStartTime().getTime() <= s.peek()) {// partial overlap
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