/** * Called when the metric command is changed by "delta" units at time "time" * via user "user" * * @param time the time of the event * @param command the metric that is updated, e.g., the operation name * @param user the user that updated the metric * @param delta the amount of change in the metric, e.g., +1 */ public void recordMetric(long time, String command, String user, long delta) { RollingWindow window = getRollingWindow(command, user); window.incAt(time, delta); }
/** * Called when the metric command is changed by "delta" units at time "time" * via user "user" * * @param time the time of the event * @param command the metric that is updated, e.g., the operation name * @param user the user that updated the metric * @param delta the amount of change in the metric, e.g., +1 */ public void recordMetric(long time, String command, String user, long delta) { RollingWindow window = getRollingWindow(command, user); window.incAt(time, delta); }
/** * Called when the metric command is changed by "delta" units at time "time" * via user "user" * * @param time the time of the event * @param command the metric that is updated, e.g., the operation name * @param user the user that updated the metric * @param delta the amount of change in the metric, e.g., +1 */ public void recordMetric(long time, String command, String user, long delta) { RollingWindow window = getRollingWindow(command, user); window.incAt(time, delta); }
@Test public void testReorderedAccess() { RollingWindow window = new RollingWindow(WINDOW_LEN, BUCKET_CNT); long time = 2 * WINDOW_LEN + BUCKET_LEN * 3 / 2; window.incAt(time, 5); time++; Assert.assertEquals( "The sum of rolling window does not reflect the recent update", 5, window.getSum(time)); long reorderedTime = time - 2 * BUCKET_LEN; window.incAt(reorderedTime, 6); Assert.assertEquals( "The sum of rolling window does not reflect the reordered update", 11, window.getSum(time)); time = reorderedTime + WINDOW_LEN; Assert.assertEquals( "The sum of rolling window does not reflect rolling effect", 5, window.getSum(time)); }
@Test public void testBasics() { RollingWindow window = new RollingWindow(WINDOW_LEN, BUCKET_CNT); long time = 1; Assert.assertEquals("The initial sum of rolling window must be 0", 0, window.getSum(time)); time = WINDOW_LEN + BUCKET_LEN * 3 / 2; Assert.assertEquals("The initial sum of rolling window must be 0", 0, window.getSum(time)); window.incAt(time, 5); Assert.assertEquals( "The sum of rolling window does not reflect the recent update", 5, window.getSum(time)); time += BUCKET_LEN; window.incAt(time, 6); Assert.assertEquals( "The sum of rolling window does not reflect the recent update", 11, window.getSum(time)); time += WINDOW_LEN - BUCKET_LEN; Assert.assertEquals( "The sum of rolling window does not reflect rolling effect", 6, window.getSum(time)); time += BUCKET_LEN; Assert.assertEquals( "The sum of rolling window does not reflect rolling effect", 0, window.getSum(time)); }