org.elasticsearch.search.aggregations.bucket.histogram.DateHistogramInterval Maven / Gradle / Ivy
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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.search.aggregations.bucket.histogram;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import java.io.IOException;
import java.util.Objects;
/**
* The interval the date histogram is based on.
*/
public class DateHistogramInterval implements Writeable {
public static final DateHistogramInterval SECOND = new DateHistogramInterval("1s");
public static final DateHistogramInterval MINUTE = new DateHistogramInterval("1m");
public static final DateHistogramInterval HOUR = new DateHistogramInterval("1h");
public static final DateHistogramInterval DAY = new DateHistogramInterval("1d");
public static final DateHistogramInterval WEEK = new DateHistogramInterval("1w");
public static final DateHistogramInterval MONTH = new DateHistogramInterval("1M");
public static final DateHistogramInterval QUARTER = new DateHistogramInterval("1q");
public static final DateHistogramInterval YEAR = new DateHistogramInterval("1y");
public static DateHistogramInterval seconds(int sec) {
return new DateHistogramInterval(sec + "s");
}
public static DateHistogramInterval minutes(int min) {
return new DateHistogramInterval(min + "m");
}
public static DateHistogramInterval hours(int hours) {
return new DateHistogramInterval(hours + "h");
}
public static DateHistogramInterval days(int days) {
return new DateHistogramInterval(days + "d");
}
public static DateHistogramInterval weeks(int weeks) {
return new DateHistogramInterval(weeks + "w");
}
private final String expression;
public DateHistogramInterval(String expression) {
this.expression = expression;
}
/**
* Read from a stream.
*/
public DateHistogramInterval(StreamInput in) throws IOException {
expression = in.readString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(expression);
}
@Override
public String toString() {
return expression;
}
@Override
public int hashCode() {
return Objects.hash(expression);
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
DateHistogramInterval other = (DateHistogramInterval) obj;
return Objects.equals(expression, other.expression);
}
}