/*

 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package sun.security.ec.point;

import sun.security.util.math.ImmutableIntegerModuloP;

import java.util.Objects;

/**

 * Elliptic curve point represented using affine coordinates (x, y). This class

 * is not part of the sun.security.ec.point.Point hierarchy because it is not

 * used to hold intermediate values during point arithmetic, and so it does not

 * have a mutable form.

 */

public class AffinePoint {

    private final ImmutableIntegerModuloP x;

    private final ImmutableIntegerModuloP y;

    public AffinePoint(ImmutableIntegerModuloP x, ImmutableIntegerModuloP y) {

        this.x = x;

        this.y = y;

    }

    public ImmutableIntegerModuloP getX() {

        return x;

    }

    public ImmutableIntegerModuloP getY() {

        return y;

    }

    @Override

    public boolean equals(Object obj) {

        if (!(obj instanceof AffinePoint)) {

            return false;

        }

        AffinePoint p = (AffinePoint) obj;

        boolean xEquals = x.asBigInteger().equals(p.x.asBigInteger());

        boolean yEquals = y.asBigInteger().equals(p.y.asBigInteger());

        return xEquals && yEquals;

    }

    @Override

    public int hashCode() {

        return Objects.hash(x, y);

    }

    @Override

    public String toString() {

        return "(" + x.asBigInteger().toString() + "," +

            y.asBigInteger().toString() + ")";

    }

}