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/*
* Copyright 2020 the original author or authors.
*
* 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
*
* https://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 io.r2dbc.postgresql.codec;
import io.r2dbc.postgresql.util.Assert;
/**
* Value object that maps to the {@code circle} datatype in Postgres.
*
* Uses {@code double} to represent the coordinates.
*
* @since 0.8.5
*/
public final class Circle {
private final Point center;
private final double radius;
private Circle(Point center, double radius) {
this.center = Assert.requireNonNull(center, "center must not be null");
this.radius = radius;
}
/**
* Create a new {@link Circle} given {@link Point center} and {@code radius}.
*
* @param center the center point
* @param radius the radius
* @return the new {@link Circle} object
* @throws IllegalArgumentException if {@code radius} is {@code null}
*/
public static Circle of(Point center, double radius) {
return new Circle(center, radius);
}
/**
* Create a new {@link Circle} given center coordinates {@code x/y} and {@code radius}.
*
* @param x the x center coordinate
* @param y the y center coordinate
* @param radius the radius
* @return the new {@link Circle} object
*/
public static Circle of(double x, double y, double radius) {
return new Circle(Point.of(x, y), radius);
}
public Point getCenter() {
return this.center;
}
public double getRadius() {
return this.radius;
}
/**
* @param obj Object to compare with
* @return true if the two circles are identical
*/
@Override
public boolean equals(Object obj) {
if (obj instanceof Circle) {
Circle circle = (Circle) obj;
return circle.center.equals(this.center) && circle.radius == this.radius;
}
return false;
}
@Override
public int hashCode() {
long v = Double.doubleToLongBits(this.radius);
return (int) (this.center.hashCode() ^ v ^ (v >>> 32));
}
@Override
public String toString() {
return "<" + this.center.toString() + "," + this.radius + ">";
}
}