org.elasticsearch.search.aggregations.metrics.InternalGeoBounds Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.search.aggregations.metrics;
import org.elasticsearch.common.geo.GeoBoundingBox;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.search.aggregations.InternalAggregation;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Objects;
public class InternalGeoBounds extends InternalAggregation implements GeoBounds {
public final double top;
public final double bottom;
public final double posLeft;
public final double posRight;
public final double negLeft;
public final double negRight;
public final boolean wrapLongitude;
public InternalGeoBounds(String name, double top, double bottom, double posLeft, double posRight,
double negLeft, double negRight, boolean wrapLongitude, Map metadata) {
super(name, metadata);
this.top = top;
this.bottom = bottom;
this.posLeft = posLeft;
this.posRight = posRight;
this.negLeft = negLeft;
this.negRight = negRight;
this.wrapLongitude = wrapLongitude;
}
/**
* Read from a stream.
*/
public InternalGeoBounds(StreamInput in) throws IOException {
super(in);
top = in.readDouble();
bottom = in.readDouble();
posLeft = in.readDouble();
posRight = in.readDouble();
negLeft = in.readDouble();
negRight = in.readDouble();
wrapLongitude = in.readBoolean();
}
@Override
protected void doWriteTo(StreamOutput out) throws IOException {
out.writeDouble(top);
out.writeDouble(bottom);
out.writeDouble(posLeft);
out.writeDouble(posRight);
out.writeDouble(negLeft);
out.writeDouble(negRight);
out.writeBoolean(wrapLongitude);
}
@Override
public String getWriteableName() {
return GeoBoundsAggregationBuilder.NAME;
}
@Override
public InternalAggregation reduce(List aggregations, ReduceContext reduceContext) {
double top = Double.NEGATIVE_INFINITY;
double bottom = Double.POSITIVE_INFINITY;
double posLeft = Double.POSITIVE_INFINITY;
double posRight = Double.NEGATIVE_INFINITY;
double negLeft = Double.POSITIVE_INFINITY;
double negRight = Double.NEGATIVE_INFINITY;
for (InternalAggregation aggregation : aggregations) {
InternalGeoBounds bounds = (InternalGeoBounds) aggregation;
if (bounds.top > top) {
top = bounds.top;
}
if (bounds.bottom < bottom) {
bottom = bounds.bottom;
}
if (bounds.posLeft < posLeft) {
posLeft = bounds.posLeft;
}
if (bounds.posRight > posRight) {
posRight = bounds.posRight;
}
if (bounds.negLeft < negLeft) {
negLeft = bounds.negLeft;
}
if (bounds.negRight > negRight) {
negRight = bounds.negRight;
}
}
return new InternalGeoBounds(name, top, bottom, posLeft, posRight, negLeft, negRight, wrapLongitude, getMetadata());
}
@Override
protected boolean mustReduceOnSingleInternalAgg() {
return false;
}
@Override
public Object getProperty(List path) {
if (path.isEmpty()) {
return this;
} else if (path.size() == 1) {
GeoBoundingBox geoBoundingBox = resolveGeoBoundingBox();
String bBoxSide = path.get(0);
switch (bBoxSide) {
case "top":
return geoBoundingBox.top();
case "left":
return geoBoundingBox.left();
case "bottom":
return geoBoundingBox.bottom();
case "right":
return geoBoundingBox.right();
default:
throw new IllegalArgumentException("Found unknown path element [" + bBoxSide + "] in [" + getName() + "]");
}
} else if (path.size() == 2) {
GeoBoundingBox geoBoundingBox = resolveGeoBoundingBox();
GeoPoint cornerPoint = null;
String cornerString = path.get(0);
switch (cornerString) {
case "top_left":
cornerPoint = geoBoundingBox.topLeft();
break;
case "bottom_right":
cornerPoint = geoBoundingBox.bottomRight();
break;
default:
throw new IllegalArgumentException("Found unknown path element [" + cornerString + "] in [" + getName() + "]");
}
String latLonString = path.get(1);
switch (latLonString) {
case "lat":
return cornerPoint.lat();
case "lon":
return cornerPoint.lon();
default:
throw new IllegalArgumentException("Found unknown path element [" + latLonString + "] in [" + getName() + "]");
}
} else {
throw new IllegalArgumentException("path not supported for [" + getName() + "]: " + path);
}
}
@Override
public XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
GeoBoundingBox bbox = resolveGeoBoundingBox();
if (bbox != null) {
bbox.toXContent(builder, params);
}
return builder;
}
private GeoBoundingBox resolveGeoBoundingBox() {
if (Double.isInfinite(top)) {
return null;
} else if (Double.isInfinite(posLeft)) {
return new GeoBoundingBox(new GeoPoint(top, negLeft), new GeoPoint(bottom, negRight));
} else if (Double.isInfinite(negLeft)) {
return new GeoBoundingBox(new GeoPoint(top, posLeft), new GeoPoint(bottom, posRight));
} else if (wrapLongitude) {
double unwrappedWidth = posRight - negLeft;
double wrappedWidth = (180 - posLeft) - (-180 - negRight);
if (unwrappedWidth <= wrappedWidth) {
return new GeoBoundingBox(new GeoPoint(top, negLeft), new GeoPoint(bottom, posRight));
} else {
return new GeoBoundingBox(new GeoPoint(top, posLeft), new GeoPoint(bottom, negRight));
}
} else {
return new GeoBoundingBox(new GeoPoint(top, negLeft), new GeoPoint(bottom, posRight));
}
}
@Override
public GeoPoint topLeft() {
GeoBoundingBox geoBoundingBox = resolveGeoBoundingBox();
if (geoBoundingBox == null) {
return null;
} else {
return geoBoundingBox.topLeft();
}
}
@Override
public GeoPoint bottomRight() {
GeoBoundingBox geoBoundingBox = resolveGeoBoundingBox();
if (geoBoundingBox == null) {
return null;
} else {
return geoBoundingBox.bottomRight();
}
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
if (super.equals(obj) == false) return false;
InternalGeoBounds other = (InternalGeoBounds) obj;
return top == other.top &&
bottom == other.bottom &&
posLeft == other.posLeft &&
posRight == other.posRight &&
negLeft == other.negLeft &&
negRight == other.negRight &&
wrapLongitude == other.wrapLongitude;
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), bottom, posLeft, posRight, negLeft, negRight, wrapLongitude);
}
}