private void testRangeScan(long rangeSize) throws Exception {
addAscending(0L, 1L, VALUE_COUNT);
btree.sync();
byte[] minData = new byte[8];
byte[] maxData = new byte[8];
Thread.sleep(500L);
long startTime = System.currentTimeMillis();
for (long minValue = 0L; minValue < VALUE_COUNT; minValue += rangeSize) {
ByteArrayUtil.putLong(minValue, minData, 0);
ByteArrayUtil.putLong(minValue + rangeSize, maxData, 0);
RecordIterator iter = btree.iterateRange(minData, maxData);
try {
while (iter.next() != null) {}
} finally {
iter.close();
}
}
long endTime = System.currentTimeMillis();
printTime(startTime, endTime, "testRangeScan" + rangeSize);
}
private void addRandom(int valueCount) throws IOException {
Random random = new Random(0L);
byte[] data = new byte[8];
for (int i = 0; i < valueCount; i++) {
ByteArrayUtil.putLong(random.nextLong(), data, 0);
btree.insert(data);
}
}
private void remove(long startValue, long increment, int valueCount) throws IOException {
long value = startValue;
byte[] data = new byte[8];
for (int i = 0; i < valueCount; i++) {
ByteArrayUtil.putLong(value, data, 0);
btree.remove(data);
value += increment;
}
}
private void update(long startValue, long increment, int valueCount, long updateDelta)
throws IOException {
long oldValue = startValue;
long newValue;
byte[] oldData = new byte[8];
byte[] newData = new byte[8];
for (int i = 0; i < valueCount; i++) {
newValue = oldValue += updateDelta;
ByteArrayUtil.putLong(oldValue, oldData, 0);
ByteArrayUtil.putLong(newValue, newData, 0);
btree.insert(newData);
btree.remove(oldData);
oldValue += increment;
}
}
