/*
* Checks Deadline, total Time
* return 3 => succeed (last task emergent)
* return 2 => succeed (soft time window)
* return 1 => succeed (strict time window)
* return 0 => exceed return deadline
* return -1 => time window conflict
*
* after check, the startT and finishT is updated correctly.
*/
public int check() {
Calendar currentTime = (Calendar) nw.periodStartTimes[this.period].clone();
Calendar endTime = nw.periodEndTimes[this.period];
loadedDistance = emptyDistance = waitTime = softTimeWindowPenalty = 0;
int taskSetSize = taskSet.size();
for (int i = 0; i < taskSetSize; i++) {
Task currentTa = taskSet.elementAt(i);
currentTa.emergent = false;
Commodity c = currentTa.cmdt;
int srcI = c.src.index, destI = c.dest.index, depotI = nw.depot.index;
// dead heading to source node.
if (i == 0) { // depot to src
currentTime.add(Calendar.MINUTE, (int) nw.getTravelingTime(depotI, srcI));
emptyDistance += nw.getTravelingDistance(depotI, srcI);
} else { // dest to src
Commodity c2 = this.taskSet.elementAt(i - 1).cmdt;
if (!c.src.equals(c2.dest)) {
currentTime.add(Calendar.MINUTE, (int) nw.getTravelingTime(c2.dest.index, srcI));
emptyDistance += nw.getTravelingDistance(c2.dest.index, srcI);
}
}
// Carrier just arrived at source node.
if (currentTime.compareTo(c.availTime) < 0) { // arrive too early
this.waitTime +=
(c.availTime.getTimeInMillis() - currentTime.getTimeInMillis()) / 1000 / 60;
currentTime = (Calendar) c.availTime.clone();
}
currentTa.startT = (Calendar) currentTime.clone();
// load time of commodity c
currentTa.emergent =
(int)
((c.deadline.getTimeInMillis() - currentTime.getTimeInMillis()) / 1000 / 60
- 120) // should arrive earlier, not just in time!!
< nw.getTravelingTimeWithQueue(srcI, destI);
// if (!currentTa.emergent) {
currentTime.add(Calendar.MINUTE, c.src.loadTime);
// }
// src -> dest
currentTime.add(Calendar.MINUTE, (int) nw.getTravelingTime(srcI, destI));
loadedDistance += nw.getTravelingDistance(srcI, destI);
// unload ta1, task(s) finished
// if (!currentTa.emergent) {
currentTime.add(Calendar.MINUTE, c.dest.unloadTime);
// }
if (currentTime.compareTo(c.deadline) > 0) {
// System.out.println("Too late to unload!");
return -1;
}
currentTa.finishT = (Calendar) currentTime.clone();
// if last task, go back to depot
if (i == taskSetSize - 1) { // dest to depot
currentTime.add(Calendar.MINUTE, (int) nw.getTravelingTime(destI, depotI));
this.emptyDistance += nw.getTravelingDistance(destI, depotI);
}
if (currentTime.compareTo(endTime) > 0) {
if (i == taskSetSize - 1) { // emergent and it is last task
if (currentTa.emergent) return 3;
// Soft time window
// double lateness = currentTime.getTimeInMillis() - endTime.getTimeInMillis();
// lateness = lateness / 1000 / 60;
//
// this.softTimeWindowPenalty = lateness / 2;
// return 2;
} else {
return 0;
}
}
// The delay is calculated, but not included in finish time;
// This is put here because once a job is found to be delayed,
// Only later jobs should be reconsidered, it is already to late
// to change it if period deadline is missed.
currentTime.add(Calendar.MINUTE, currentTa.getLateness());
}
return 1;
}
