private TransactionUpdater recalculate(List<TTransaction> list) {
// the first one should not be updated at all (that is a pivot element)
if (list.isEmpty()) {
System.out.println(
"[WARNING] pivot is null, list is empty. " + TransactionUpdater.class.getSimpleName());
return this;
}
// list.isEmpty() == FALSE
int offset;
for (offset = 0; offset < list.size() && !list.get(offset).isPivot(); ++offset) ;
/* in case when no pivot found: nothing to be done */
if (offset == list.size()) return this;
int balance = list.get(offset).getBalance();
TChargeAccount ca = list.get(offset).getCa();
info("offset = %d, list.size = %d", offset, list.size());
for (int i = offset + 1; i < list.size(); ++i) {
TTransaction t = list.get(i);
if (t.isPivot()) {
t.setAmount(t.getBalance() - balance);
info("IS PIVOT: %s", t);
/* henceforth use the new balance */
balance = t.getBalance();
} else {
if (t.getCatransfer().equals(ca)) {
/**
* Transfer transaction (beneficiary side, who gets), balance: don't modify, because this
* balance is that of the other one (who gives)
*/
Assert.assertTrue(!t.getCa().equals(ca) && !t.getCa().equals(none));
Assert.assertTrue(t.getCluster().equals(athelyezes) && athelyezes.getSgn() == -1);
// t.setBalance(balance + t.getAmount());
balance += t.getAmount();
} else if (t.getCa().equals(ca)) {
/**
* Simple transaction, knowing the sign (direction: in/out) of the amount, which we are
* talking about
*/
Assert.assertTrue(!t.getCatransfer().equals(ca));
t.setBalance(balance + t.getCluster().getSgn() * t.getAmount());
balance = t.getBalance();
}
}
}
return this;
}
public void execute() {
TTransaction old = args.getOldtr();
TTransaction tr = args.getActtr();
Assert.assertNotNull(tr.getCatransfer());
Assert.assertTrue(!tr.getCa().equals(none));
Assert.assertTrue(!tr.getCa().equals(tr.getCatransfer()));
Date fromDate, toDate;
if (old == null) {
fromDate = tr.getDate();
toDate = tr.getDate();
} else {
info("Old = " + old);
info("New = " + tr);
if (tr.getDate().getTime() < old.getDate().getTime()) {
fromDate = tr.getDate();
toDate = old.getDate();
} else {
fromDate = old.getDate();
toDate = tr.getDate();
}
info("date from: " + Util.str(fromDate));
info("date to: " + Util.str(toDate));
}
Assert.assertTrue(fromDate.getTime() <= toDate.getTime());
/* update new from:ca */
updateDirtyElements(fromDate, toDate, tr.getCa());
/* update new to:ca */
if (!tr.getCatransfer().equals(none)) {
updateDirtyElements(fromDate, toDate, tr.getCatransfer());
}
// to be sure, tr.getCa() [new from:ca] & tr.getCatransfer() [new to:ca]
// are already validated
if (old == null) return;
Assert.assertNotNull(old.getCatransfer());
Assert.assertTrue(!old.getCa().equals(none));
Assert.assertTrue(!old.getCa().equals(old.getCatransfer()));
/* update old from:ca */
if (!old.getCa().equals(tr.getCa()) && !old.getCa().equals(tr.getCatransfer())) {
updateDirtyElements(fromDate, toDate, old.getCa());
}
/* update old to:ca */
if (!old.getCatransfer().equals(none)
&& !old.getCatransfer().equals(tr.getCa())
&& !old.getCatransfer().equals(tr.getCatransfer())) {
updateDirtyElements(fromDate, toDate, old.getCatransfer());
}
}