private SipModel.ScanPredicate createPredicate() {
final String filterString = filterField.getText().trim();
switch ((Filter) filterBox.getSelectedItem()) {
case REGEX:
return new SipModel.ScanPredicate() {
@Override
public boolean accept(MetadataRecord record) {
return record.contains(Pattern.compile(filterString));
}
};
case MODULO:
int modulo;
try {
modulo = Integer.parseInt(filterString);
} catch (NumberFormatException e) {
modulo = 1;
}
if (modulo <= 0) modulo = 1;
final int recordNumberModulo = modulo;
return new SipModel.ScanPredicate() {
@Override
public boolean accept(MetadataRecord record) {
return recordNumberModulo == 1 || record.getRecordNumber() % recordNumberModulo == 0;
}
};
default:
throw new RuntimeException();
}
}
