Examples of programming5.code.RandomIndexGenerator

programming5.collections.NotFoundException
This class uses a java Random object to generate integers included in one or more given ranges. If the ranges are provided properly, the generator guarantees that every integer (index) belonging to the union of the ranges will have the same probability of being generated in each call to the getRandomIndex method. These integers can then, for example, be used to index subsets of an array or collection, while guaranteeing that no elements outside of the given index ranges will be selected. This implementation may save memory with respect to generating the desired index subset to then select a random element, if the ranges are large. @author Andres Quiroz Hernandez @version 6.9

    protected RandomIndexGenerator alphabeticMixedCaseRandom;
    protected Random lengthRandom;


    public RandomStringGenerator() {
        lengthRandom = new Random(System.currentTimeMillis());
        generalRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "32-126");   // TODO: What is a good code range for all?
        numericRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "48-57");
        alphanumericRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "48-57, 97-122");
        alphabeticRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "97 - 122");
        alphanumericMixedCaseRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "48-57, 97-122, 65-90");
        alphabeticMixedCaseRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "65-90, 97-122");
    }

View Full Code Here

    /**
     * @param seed seed for random number generators
     */
    public RandomStringGenerator(long seed) {
        lengthRandom = new Random(seed);
        generalRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "32-126");
        numericRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "48-57");
        alphanumericRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "48-57, 97-122");
        alphabeticRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "97 - 122");
        alphanumericMixedCaseRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "48-57, 97-122, 65-90");
        alphabeticMixedCaseRandom = new RandomIndexGenerator(lengthRandom.nextLong(), "65-90, 97-122");
    }

View Full Code Here

        }
        int[][] aux = new int[ranges.length][];
        for (int i = 0; i < ranges.length; i++) {
            aux[i] = (int[]) ranges[i];
        }
        RandomIndexGenerator customRandom = new RandomIndexGenerator(lengthRandom.nextLong(), aux);
        // Generate string
        String ret = "";
        for (int i = 0; i < length; i++) {
            ret += Character.toString((char) customRandom.getRandomIndex());
        }
        return ret;
    }

View Full Code Here

    }


    @BeforeClass
    public static void setUpClass() throws Exception {
        df = new KeyboardCharDistanceFunction();
        RandomIndexGenerator rig = new RandomIndexGenerator("32-126");
        arbitrary1 = (char) rig.getRandomIndex();
        arbitrary2 = (char) rig.getRandomIndex();
        arbitrary3 = (char) rig.getRandomIndex();
    }

View Full Code Here

    public void testReplicate_ReplicableType() {
        ReplicableObject[] toReplicate = new ReplicableObject[0];
        ReplicableObject[] replica = new ReplicableObject[0];
        ArrayOperations.replicate(toReplicate, replica);
        assertEquals(0, replica.length);
        ReplicableObject one = new ReplicableObject(1);
        toReplicate = new ReplicableObject[] {one};
        replica = new ReplicableObject[1];
        ArrayOperations.replicate(toReplicate, replica);
        assertNotSame(replica, toReplicate);
        assertNotSame(replica[0], toReplicate[0]);
        assertArrayEquals(new ReplicableObject[] {one}, replica);
        ReplicableObject two = new ReplicableObject(2);
        ReplicableObject three = new ReplicableObject(3);
        toReplicate = new ReplicableObject[] {one, two, three};
        replica = new ReplicableObject[3];
        ArrayOperations.replicate(toReplicate, replica);
        two.setField(20);
        assertEquals(20, toReplicate[1].getField());

View Full Code Here

    /**
     * Test of prefix method, of class ArrayOperations.
     */
    @Test
    public void testPrefix_ObjectArr_int() {
        ReplicableObject one = new ReplicableObject(1);
        ReplicableObject two = new ReplicableObject(2);
        ReplicableObject three = new ReplicableObject(3);
        ReplicableObject[] toPrefix = new ReplicableObject[] {one, two, three};
        Object[] prefix = ArrayOperations.prefix(toPrefix, 0);
        assertEquals(0, prefix.length);
        prefix = ArrayOperations.prefix(toPrefix, 2);
        assertEquals(2, prefix.length);

View Full Code Here

    /**
     * Test of suffix method, of class ArrayOperations.
     */
    @Test
    public void testSuffix_ObjectArr_int() {
        ReplicableObject one = new ReplicableObject(1);
        ReplicableObject two = new ReplicableObject(2);
        ReplicableObject three = new ReplicableObject(3);
        ReplicableObject[] toSuffix = new ReplicableObject[] {one, two, three};
        Object[] suffix = ArrayOperations.suffix(toSuffix, 0);
        assertEquals(3, suffix.length);
        assertArrayEquals(new ReplicableObject[] {one, two, three}, suffix);
        suffix = ArrayOperations.suffix(toSuffix, 2);

View Full Code Here

    /**
     * Test of subArray method, of class ArrayOperations.
     */
    @Test
    public void testSubArray_3args_7() {
        ReplicableObject one = new ReplicableObject(1);
        ReplicableObject two = new ReplicableObject(2);
        ReplicableObject three = new ReplicableObject(3);
        ReplicableObject[] toCut = new ReplicableObject[] {one, two, three};
        Object[] subArray = ArrayOperations.subArray(toCut, 0, 3);
        assertEquals(3, subArray.length);
        assertArrayEquals(new ReplicableObject[] {one, two, three}, subArray);
        subArray = ArrayOperations.subArray(toCut, 1, 2);

View Full Code Here

    /**
     * Test of join method, of class ArrayOperations.
     */
    @Test
    public void testJoin_ObjectArrArr() {
        ReplicableObject one = new ReplicableObject(1);
        ReplicableObject two = new ReplicableObject(2);
        ReplicableObject three = new ReplicableObject(3);
        ReplicableObject[] empty = new ReplicableObject[0];
        ReplicableObject[] single = new ReplicableObject[] {one};
        ReplicableObject[] multiple = new ReplicableObject[] {one, two, three};
        Object[] joined = ArrayOperations.join(empty);
        assertEquals(0, joined.length);

View Full Code Here

        int ret = ArrayOperations.seqFind(tag, args);
        if (ret >= 0) {
            return ret;
        }
        else {
            throw new NotFoundException();
        }
    }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of programming5.code.RandomIndexGenerator

programming5.arrays.ArrayOperationsTest

programming5.arrays.RandomOrderGenerator

programming5.arrays.SubsetGenerator

programming5.code.RandomIndexGenerator

programming5.code.ReplicableObject

programming5.collections.MathSet

programming5.collections.RandomOrderIterator

programming5.concurrent.BackoffTestThread

programming5.io.ArgHandler

programming5.io.ExecutionProgressEvent

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.