Divide(Range range) {
long half = range.getLength() / 2;
test = new Range(range.getStartIndex(), half);
other = new Range(test.getEndIndex(), range.getLength() - half);
// construct the skip range from the skipRanges
skipRange = new SortedRanges();
for (Range r : skipRanges.getRanges()) {
skipRange.add(r);
}
skipRange.add(new Range(0, test.getStartIndex()));
skipRange.add(new Range(test.getEndIndex(), (Long.MAX_VALUE - test.getEndIndex())));
}
synchronized void add(Range failedRange) {
LOG.warn("FailedRange:" + failedRange);
if (divide != null) {
LOG.warn(
"FailedRange:" + failedRange + " test:" + divide.test + " pass:" + divide.testPassed);
if (divide.testPassed) {
// test range passed
// other range would be bad. test it
failedRange = divide.other;
} else {
// test range failed
// other range would be good.
failedRange = divide.test;
}
// reset
divide = null;
}
if (maxSkipRecords == 0 || failedRange.getLength() <= maxSkipRecords) {
skipRanges.add(failedRange);
} else {
// start dividing the range to narrow down the skipped
// records until maxSkipRecords are met OR all attempts
// get exhausted
divide = new Divide(failedRange);
}
}