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/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog.plugins.views.search.searchtypes.pivot.buckets;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonTypeName;
import com.google.auto.value.AutoValue;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableRangeMap;
import com.google.common.collect.Range;
import org.elasticsearch.search.aggregations.bucket.histogram.DateHistogramInterval;
import org.graylog2.plugin.indexer.searches.timeranges.TimeRange;
import javax.annotation.Nullable;
import java.time.Duration;
import java.util.Optional;
@AutoValue
@JsonTypeName(AutoInterval.type)
public abstract class AutoInterval implements Interval {
private static final double CK_DEFAULT_SCALINGFACTOR = 1.0;
private static final String FIELD_SCALING = "scaling";
public static final String type = "auto";
@VisibleForTesting
static final ImmutableRangeMap boundaries = ImmutableRangeMap.builder()
.put(Range.atMost( Duration.ofMillis(20)), new DateHistogramInterval("1ms"))
.put(Range.openClosed(Duration.ofMillis(20), Duration.ofMillis(200)), new DateHistogramInterval("5ms"))
.put(Range.openClosed(Duration.ofMillis(200), Duration.ofMillis(500)), new DateHistogramInterval("10ms"))
.put(Range.openClosed(Duration.ofMillis(500), Duration.ofMillis(1000)), new DateHistogramInterval("20ms"))
.put(Range.openClosed(Duration.ofMillis(1000), Duration.ofSeconds(2)), new DateHistogramInterval("40ms"))
.put(Range.openClosed(Duration.ofSeconds(2), Duration.ofSeconds(10)), new DateHistogramInterval("200ms"))
.put(Range.openClosed(Duration.ofSeconds(10), Duration.ofSeconds(30)), new DateHistogramInterval("500ms"))
.put(Range.openClosed(Duration.ofSeconds(30), Duration.ofMinutes(1)), DateHistogramInterval.seconds(1))
.put(Range.openClosed(Duration.ofMinutes(1), Duration.ofMinutes(2)), DateHistogramInterval.seconds(2))
.put(Range.openClosed(Duration.ofMinutes(2), Duration.ofMinutes(4)), DateHistogramInterval.seconds(5))
.put(Range.openClosed(Duration.ofMinutes(4), Duration.ofMinutes(7)), DateHistogramInterval.seconds(10))
.put(Range.openClosed(Duration.ofMinutes(7), Duration.ofMinutes(10)), DateHistogramInterval.seconds(20))
.put(Range.openClosed(Duration.ofMinutes(10), Duration.ofMinutes(30)), DateHistogramInterval.seconds(30))
.put(Range.openClosed(Duration.ofMinutes(30), Duration.ofHours(1)), DateHistogramInterval.MINUTE)
.put(Range.openClosed(Duration.ofHours(1), Duration.ofHours(2)), DateHistogramInterval.minutes(2))
.put(Range.openClosed(Duration.ofHours(2), Duration.ofHours(4)), DateHistogramInterval.minutes(5))
.put(Range.openClosed(Duration.ofHours(4), Duration.ofHours(12)), DateHistogramInterval.minutes(10))
.put(Range.openClosed(Duration.ofHours(12), Duration.ofHours(16)), DateHistogramInterval.minutes(15))
.put(Range.openClosed(Duration.ofHours(16), Duration.ofDays(1)), DateHistogramInterval.minutes(30))
.put(Range.openClosed(Duration.ofDays(1), Duration.ofDays(2)), DateHistogramInterval.HOUR)
.put(Range.openClosed(Duration.ofDays(2), Duration.ofDays(4)), DateHistogramInterval.hours(2))
.put(Range.openClosed(Duration.ofDays(4), Duration.ofDays(10)), DateHistogramInterval.hours(4))
.put(Range.openClosed(Duration.ofDays(10), Duration.ofDays(12)), DateHistogramInterval.hours(6))
.put(Range.openClosed(Duration.ofDays(12), Duration.ofDays(28)), DateHistogramInterval.hours(12))
.put(Range.openClosed(Duration.ofDays(28), Duration.ofDays(60)), DateHistogramInterval.DAY)
.put(Range.openClosed(Duration.ofDays(60), Duration.ofDays(120)), DateHistogramInterval.days(2))
.put(Range.openClosed(Duration.ofDays(120), Duration.ofDays(180)), DateHistogramInterval.days(3))
.put(Range.openClosed(Duration.ofDays(180), Duration.ofDays(365)), DateHistogramInterval.WEEK)
.put(Range.open(Duration.ofDays(365), Duration.ofDays(730)), DateHistogramInterval.days(14))
.put(Range.atLeast(Duration.ofDays(730)), DateHistogramInterval.MONTH)
.build();
@JsonProperty
@Override
public abstract String type();
@JsonProperty
public abstract Double scaling();
@Override
public DateHistogramInterval toDateHistogramInterval(TimeRange timerange) {
//noinspection UnnecessaryBoxing
final Duration duration = Duration.ofMillis(
Math.round(new Double(timerange.getTo().getMillis() - timerange.getFrom().getMillis()) / 1000 * scaling() * 1000)
);
return boundaries.get(duration);
}
public static AutoInterval create() {
return create(type, CK_DEFAULT_SCALINGFACTOR);
}
public static AutoInterval create(double scalingFactor) {
return new AutoValue_AutoInterval(type, scalingFactor);
}
@JsonCreator
public static AutoInterval create(@JsonProperty(TYPE_FIELD) String type, @JsonProperty(FIELD_SCALING) @Nullable Double scalingFactor) {
return create(Optional.ofNullable(scalingFactor).orElse(CK_DEFAULT_SCALINGFACTOR));
}
}
