/*
* Copyright 2014 NAVER Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.navercorp.pinpoint.web.util;
import com.navercorp.pinpoint.web.vo.Range;
import java.util.concurrent.TimeUnit;
/**
* @author emeroad
*/
public class TimeWindowDownSampler implements TimeWindowSampler {
private static final long ONE_MINUTE = 6000 * 10;
private static final long ONE_HOUR = TimeUnit.HOURS.toMillis(1);
private static final long SIX_HOURS = TimeUnit.HOURS.toMillis(6);
private static final long TWELVE_HOURS = TimeUnit.HOURS.toMillis(12);
private static final long ONE_DAY = TimeUnit.DAYS.toMillis(1);
private static final long TWO_DAY = TimeUnit.DAYS.toMillis(2);
public static final TimeWindowSampler SAMPLER = new TimeWindowDownSampler();
@Override
public long getWindowSize(Range range) {
final long diff = range.getRange();
long size;
if (diff <= ONE_HOUR) {
size = ONE_MINUTE;
} else if (diff <= SIX_HOURS) {
size = ONE_MINUTE * 5;
} else if (diff <= TWELVE_HOURS) {
size = ONE_MINUTE * 10;
} else if (diff <= ONE_DAY) {
size = ONE_MINUTE * 20;
} else if (diff <= TWO_DAY) {
size = ONE_MINUTE * 30;
} else {
size = ONE_MINUTE * 60;
}
return size;
}
}