/*

 * The contents of this file are subject to the terms of the Common Development

 * and Distribution License (the License). You may not use this file except in

 * compliance with the License.

 *

 * You can obtain a copy of the License at http://www.netbeans.org/cddl.html

 * or http://www.netbeans.org/cddl.txt.

 *

 * When distributing Covered Code, include this CDDL Header Notice in each file

 * and include the License file at http://www.netbeans.org/cddl.txt.

 * If applicable, add the following below the CDDL Header, with the fields

 * enclosed by brackets [] replaced by your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * The Original Software is NetBeans. The Initial Developer of the Original

 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun

 * Microsystems, Inc. All Rights Reserved.

 */

package org.netbeans.apifest.boolcircuit;

/**

 */

public abstract class Circuit {

    /** Creates a new instance of Circuits */

    private Circuit() {

    }

    public static Circuit negate(boolean input) {

        return new Negation(input);

    }

    public static Circuit negate(Circuit input) {

        return new Negation(input);

    }

    public static Circuit and(boolean input1, boolean input2) {

        return new And(input1, input2);

    }

    public static Circuit and(Circuit  input1, boolean input2) {

        return new And(input1, new Primitive(input2));

    }

    public static Circuit and(boolean input1, Circuit input2) {

        return new And(new Primitive(input1), input2);

    }

    public static Circuit and(Circuit input1, Circuit input2) {

        return new And(input1, input2);

    }

    public static Circuit or(boolean input1, boolean input2) {

        return new Or(input1, input2);

    }

    public static Circuit or(Circuit input1, boolean input2) {

        return new Or(input1, new Primitive(input2));

    }

    public static Circuit or(boolean input1, Circuit input2) {

        return new Or(new Primitive(input1), input2);

    }

    public static Circuit or(Circuit input1, Circuit input2) {

        return new Or(input1, input2);

    }

    public abstract boolean output();

    private final static class Primitive extends Circuit {

        private boolean input;

        Primitive(boolean input) {

            this.input = input;

        }

        public final boolean output() {

            return input;

        }

    }

    private final static class Negation extends Circuit {

        private Circuit input;

        Negation(boolean input) {

            this.input = new Primitive(input);

        }

        Negation(Circuit input) {

            this.input = input;

        }

        public final boolean output() {

            return !(input.output());

        }

    }

    private final static class And extends Circuit {

        private Circuit input1;

        private Circuit input2;

        And(boolean input1, boolean input2) {

            this.input1 = new Primitive(input1);

            this.input2 = new Primitive(input2);

        }

        And(Circuit input1, Circuit input2) {

            this.input1 = input1;

            this.input2 = input2;

        }

        public final boolean output() {

            return input1.output() && input2.output();

        }

    }

    private final static class Or extends Circuit {

        private Circuit input1;

        private Circuit input2;

        Or(boolean input1, boolean input2) {

            this.input1 = new Primitive(input1);

            this.input2 = new Primitive(input2);

        }

        Or(Circuit input1, Circuit input2) {

            this.input1 = input1;

            this.input2 = input2;

        }

        public final boolean output() {

            return input1.output() || input2.output();

        }

    }

  }