1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/apifest1/day2/stackbasedsolution/src/org/netbeans/apifest/boolcircuit/CircuitFactory.java	Sat Jun 14 09:52:45 2008 +0200
     1.3 @@ -0,0 +1,101 @@
     1.4 +/*
     1.5 + * CircuitFactory.java
     1.6 + *
     1.7 + * Created on July 12, 2006, 3:01 PM
     1.8 + *
     1.9 + * To change this template, choose Tools | Template Manager
    1.10 + * and open the template in the editor.
    1.11 + */
    1.12 +
    1.13 +package org.netbeans.apifest.boolcircuit;
    1.14 +
    1.15 +import java.util.Stack;
    1.16 +
    1.17 +/**
    1.18 + *
    1.19 + */
    1.20 +public class CircuitFactory {
    1.21 +    
    1.22 +    /** Creates a new instance of CircuitFactory */
    1.23 +    private  CircuitFactory() {
    1.24 +    }
    1.25 +    
    1.26 +    public final static Circuit join (final Circuit c1, final Circuit c2, final Operation op) {
    1.27 +        return new Circuit () {
    1.28 +            public char evaluate(Stack input) throws IllegalArgumentException {
    1.29 +                return op.evaluate(c1.evaluate(input), c2.evaluate(input));
    1.30 +            }
    1.31 +        };
    1.32 +    }
    1.33 +    
    1.34 +    public final static Circuit2 join (final Circuit2 c1, final Circuit2 c2, final Operation op) {
    1.35 +        return new Circuit2 () {
    1.36 +            public char evaluate(Stack input) throws IllegalArgumentException {
    1.37 +                return op.evaluate(c1.evaluate(input), c2.evaluate(input));
    1.38 +            }
    1.39 +            public double evaluate(double ... input) throws IllegalArgumentException {
    1.40 +                return op.evaluate(c1.evaluate(input), c2.evaluate(input));
    1.41 +            }
    1.42 +        };
    1.43 +    }
    1.44 +    
    1.45 +    public final static Circuit2 getBasicCircuit (final Operation op) {
    1.46 +        return new Circuit2 () {
    1.47 +            public double evaluate(double... input) throws IllegalArgumentException {
    1.48 +                if (input == null || input.length == 1) {
    1.49 +                    throw new IllegalArgumentException ("Invalid input array.");
    1.50 +                }
    1.51 +                return op.evaluate(input[0], input[1]);
    1.52 +            }
    1.53 +
    1.54 +            public char evaluate(Stack<Character> input) throws IllegalArgumentException {
    1.55 +                // special handling of unary oparation
    1.56 +                if (op instanceof Operation.Neg) {
    1.57 +                    return op.evaluate(input.pop(), input.peek());
    1.58 +                } else {
    1.59 +                    return op.evaluate(input.pop(), input.pop());
    1.60 +                }
    1.61 +            }
    1.62 +        };
    1.63 +    }
    1.64 +//    public final static Circuit2 getBasicCircuit (final Operation op, final int posX, final int posY) {
    1.65 +//        return new Circuit2 () {
    1.66 +//            public double evaluate(double... input) throws IllegalArgumentException {
    1.67 +//                return op.evaluate(input[posX], input[posY]);
    1.68 +//            }
    1.69 +//
    1.70 +//            public char evaluate(Stack<Character> input) throws IllegalArgumentException {
    1.71 +//                return getBasicCircuit (op).evaluate(input);
    1.72 +//            }
    1.73 +//        };
    1.74 +//    }
    1.75 +//    public final static Circuit2 getBasicCircuit (final Operation op, final Circuit2 c1, final Circuit2 c2) {
    1.76 +//        return new Circuit2 () {
    1.77 +//            public double evaluate(double... input) throws IllegalArgumentException {
    1.78 +//                return op.evaluate(c2.evaluate(input), c2.evaluate(input));
    1.79 +//            }
    1.80 +//
    1.81 +//            public char evaluate(Stack<Character> input) throws IllegalArgumentException {
    1.82 +//                return getBasicCircuit (op).evaluate(input);
    1.83 +//            }
    1.84 +//        };
    1.85 +//    }
    1.86 +    public final static Circuit getTrivialCircuit () {
    1.87 +        return new Circuit () {
    1.88 +            public char evaluate(Stack<Character> input) throws IllegalArgumentException {
    1.89 +                return input.peek();
    1.90 +            }
    1.91 +        };
    1.92 +    }
    1.93 +    public final static Circuit2 getTrivialCircuit (final int posX) {
    1.94 +        return new Circuit2 () {
    1.95 +            public double evaluate(double... input) throws IllegalArgumentException {
    1.96 +                return input[posX];
    1.97 +            }
    1.98 +
    1.99 +            public char evaluate(Stack<Character> input) throws IllegalArgumentException {
   1.100 +                return getTrivialCircuit ().evaluate(input);
   1.101 +            }
   1.102 +        };
   1.103 +    }
   1.104 +}