/* (non-Javadoc)
* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
*/
public int compare(InvoiceLineDTO perA, InvoiceLineDTO perB) {
int retValue;
// the line type should tell first
if (perA.getOrderPosition() == perB.getOrderPosition()) {
try {
if (perA.getTypeId() == Constants.INVOICE_LINE_TYPE_SUB_ACCOUNT
&& perB.getTypeId() == Constants.INVOICE_LINE_TYPE_SUB_ACCOUNT) {
// invoice lines have to be grouped by user
// find out both users
retValue = perA.getSourceUserId().compareTo(perB.getSourceUserId());
/*
Logger.getLogger(InvoiceLineComparator.class).debug(
"Testing two sub account lines. a.userid " +
perA.getSourceUserId() + " b.userid " + perB.getSourceUserId() +
" result " + retValue);
*/
if (retValue != 0) {
// these are lines for two different users, so
// they are different enough now
return retValue;
}
}
// use the number
if (perA.getItem() != null && perB.getItem() != null) {
ItemBL itemA = new ItemBL(perA.getItem());
ItemBL itemB = new ItemBL(perB.getItem());
if (itemA.getEntity().getNumber() == null && itemB.getEntity().getNumber() == null) {
retValue =
new Integer(perA.getItem().getId()).compareTo(new Integer(perB.getItem().getId()));
} else if (itemA.getEntity().getNumber() == null) {
retValue = 1;
} else if (itemB.getEntity().getNumber() == null) {
retValue = -1;
} else {
// none are null
retValue = itemA.getEntity().getNumber().compareTo(itemB.getEntity().getNumber());
}
} else {
retValue = 0;
}
} catch (Exception e) {
Logger.getLogger(InvoiceLineComparator.class)
.error("Comparing invoice lines " + perA + " " + perB, e);
retValue = 0;
}
} else {
retValue = new Integer(perA.getOrderPosition()).compareTo(perB.getOrderPosition());
}
/*
Logger.getLogger(InvoiceLineComparator.class).debug(
"Comparing " + perA.getId() + " " + perB.getId() +
" result " + retValue);
*/
return retValue;
}
