Examples of org.jfree.data.time.TimeSeriesCollection

org.jfree.data.time.TimeSeriesCollection
A collection of time series objects. This class implements the {@link XYDataset} interface, as well as the extended{@link IntervalXYDataset} interface. This makes it a convenient dataset foruse with the {@link org.jfree.chart.plot.XYPlot} class.

        series1.add(new Day(12, MonthConstants.MARCH, 2002), 14232.2);
        series1.add(new Day(13, MonthConstants.MARCH, 2002), 13102.2);
        series1.add(new Day(14, MonthConstants.MARCH, 2002), 14230.2);
        series1.add(new Day(15, MonthConstants.MARCH, 2002), 11235.2);


        TimeSeriesCollection collection = new TimeSeriesCollection(series1);
        return collection;


    }

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     * values we expect.
     */
    public void testGetSurroundingItems() {


        TimeSeries series = new TimeSeries("Series 1");
        TimeSeriesCollection collection = new TimeSeriesCollection(series);
        collection.setXPosition(TimePeriodAnchor.MIDDLE);


        // for a series with no data, we expect {-1, -1}...
        int[] result = collection.getSurroundingItems(0, 1000L);
        assertTrue(result[0] == -1);
        assertTrue(result[1] == -1);


        // now test with a single value in the series...
        Day today = new Day();
        long start1 = today.getFirstMillisecond();
        long middle1 = today.getMiddleMillisecond();
        long end1 = today.getLastMillisecond();


        series.add(today, 99.9);
        result = collection.getSurroundingItems(0, start1);
        assertTrue(result[0] == -1);
        assertTrue(result[1] == 0);


        result = collection.getSurroundingItems(0, middle1);
        assertTrue(result[0] == 0);
        assertTrue(result[1] == 0);


        result = collection.getSurroundingItems(0, end1);
        assertTrue(result[0] == 0);
        assertTrue(result[1] == -1);


        // now add a second value to the series...
        Day tomorrow = (Day) today.next();
        long start2 = tomorrow.getFirstMillisecond();
        long middle2 = tomorrow.getMiddleMillisecond();
        long end2 = tomorrow.getLastMillisecond();


        series.add(tomorrow, 199.9);
        result = collection.getSurroundingItems(0, start2);
        assertTrue(result[0] == 0);
        assertTrue(result[1] == 1);


        result = collection.getSurroundingItems(0, middle2);
        assertTrue(result[0] == 1);
        assertTrue(result[1] == 1);


        result = collection.getSurroundingItems(0, end2);
        assertTrue(result[0] == 1);
        assertTrue(result[1] == -1);


        // now add a third value to the series...
        Day yesterday = (Day) today.previous();
        long start3 = yesterday.getFirstMillisecond();
        long middle3 = yesterday.getMiddleMillisecond();
        long end3 = yesterday.getLastMillisecond();


        series.add(yesterday, 1.23);
        result = collection.getSurroundingItems(0, start3);
        assertTrue(result[0] == -1);
        assertTrue(result[1] == 0);


        result = collection.getSurroundingItems(0, middle3);
        assertTrue(result[0] == 0);
        assertTrue(result[1] == 0);


        result = collection.getSurroundingItems(0, end3);
        assertTrue(result[0] == 0);
        assertTrue(result[1] == 1);


    }

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        TimeSeriesCollection c1 = new TimeSeriesCollection(createSeries());
        TimeSeriesCollection c2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(c1);
            out.close();

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    /**
     * A test for bug report 1170825.
     */
    public void test1170825() {
        TimeSeries s1 = new TimeSeries("Series1");
        TimeSeriesCollection dataset = new TimeSeriesCollection();
        dataset.addSeries(s1);
        try {
            /* TimeSeries s = */ dataset.getSeries(1);
        }
        catch (IllegalArgumentException e) {
            // correct outcome
        }
        catch (IndexOutOfBoundsException e) {

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     * Some tests for the indexOf() method.
     */
    public void testIndexOf() {
        TimeSeries s1 = new TimeSeries("S1");
        TimeSeries s2 = new TimeSeries("S2");
        TimeSeriesCollection dataset = new TimeSeriesCollection();
        assertEquals(-1, dataset.indexOf(s1));
        assertEquals(-1, dataset.indexOf(s2));


        dataset.addSeries(s1);
        assertEquals(0, dataset.indexOf(s1));
        assertEquals(-1, dataset.indexOf(s2));


        dataset.addSeries(s2);
        assertEquals(0, dataset.indexOf(s1));
        assertEquals(1, dataset.indexOf(s2));


        dataset.removeSeries(s1);
        assertEquals(-1, dataset.indexOf(s1));
        assertEquals(0, dataset.indexOf(s2));


        TimeSeries s2b = new TimeSeries("S2");
        assertEquals(0, dataset.indexOf(s2b));
    }

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     * This method provides a check for the bounds calculated using the
     * {@link DatasetUtilities#findDomainBounds(org.jfree.data.xy.XYDataset,
     * java.util.List, boolean)} method.
     */
    public void testFindDomainBounds() {
        TimeSeriesCollection dataset = new TimeSeriesCollection();
        List visibleSeriesKeys = new java.util.ArrayList();
        Range r = DatasetUtilities.findDomainBounds(dataset, visibleSeriesKeys,
                true);
        assertNull(r);


        TimeSeries s1 = new TimeSeries("S1");
        dataset.addSeries(s1);
        visibleSeriesKeys.add("S1");
        r = DatasetUtilities.findDomainBounds(dataset, visibleSeriesKeys, true);
        assertNull(r);


        // store the current time zone
        TimeZone saved = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/Paris"));


        s1.add(new Year(2008), 8.0);
        r = DatasetUtilities.findDomainBounds(dataset, visibleSeriesKeys, true);
        assertEquals(1199142000000.0, r.getLowerBound(), EPSILON);
        assertEquals(1230764399999.0, r.getUpperBound(), EPSILON);


        TimeSeries s2 = new TimeSeries("S2");
        dataset.addSeries(s2);
        s2.add(new Year(2009), 9.0);
        s2.add(new Year(2010), 10.0);
        r = DatasetUtilities.findDomainBounds(dataset, visibleSeriesKeys, true);
        assertEquals(1199142000000.0, r.getLowerBound(), EPSILON);
        assertEquals(1230764399999.0, r.getUpperBound(), EPSILON);

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     * Basic checks for cloning.
     */
    public void testCloning() {
        TimeSeries s1 = new TimeSeries("Series");
        s1.add(new Year(2009), 1.1);
        TimeSeriesCollection c1 = new TimeSeriesCollection();
        c1.addSeries(s1);
        TimeSeriesCollection c2 = null;
        try {
            c2 = (TimeSeriesCollection) c1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(c1 != c2);
        assertTrue(c1.getClass() == c2.getClass());
        assertTrue(c1.equals(c2));


        // check independence
        s1.setDescription("XYZ");
        assertFalse(c1.equals(c2));
        c2.getSeries(0).setDescription("XYZ");
        assertTrue(c1.equals(c2));
    }

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    /**
     * Some tests for the equals() method.
     */
    public void testEquals() {


        TimeSeriesCollection c1 = new TimeSeriesCollection();
        TimeSeriesCollection c2 = new TimeSeriesCollection();


        TimeSeries s1 = new TimeSeries("Series 1");
        TimeSeries s2 = new TimeSeries("Series 2");


        // newly created collections should be equal
        boolean b1 = c1.equals(c2);
        assertTrue("b1", b1);


        // add series to collection 1, should be not equal
        c1.addSeries(s1);
        c1.addSeries(s2);
        boolean b2 = c1.equals(c2);
        assertFalse("b2", b2);


        // now add the same series to collection 2 to make them equal again...
        c2.addSeries(s1);
        c2.addSeries(s2);
        boolean b3 = c1.equals(c2);
        assertTrue("b3", b3);


        // now remove series 2 from collection 2
        c2.removeSeries(s2);
        boolean b4 = c1.equals(c2);
        assertFalse("b4", b4);


        // now remove series 2 from collection 1 to make them equal again
        c1.removeSeries(s2);

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    /**
     * Tests the remove series method.
     */
    public void testRemoveSeries() {


        TimeSeriesCollection c1 = new TimeSeriesCollection();


        TimeSeries s1 = new TimeSeries("Series 1");
        TimeSeries s2 = new TimeSeries("Series 2");
        TimeSeries s3 = new TimeSeries("Series 3");
        TimeSeries s4 = new TimeSeries("Series 4");


        c1.addSeries(s1);
        c1.addSeries(s2);
        c1.addSeries(s3);
        c1.addSeries(s4);


        c1.removeSeries(s3);


        TimeSeries s = c1.getSeries(2);
        boolean b1 = s.equals(s4);
        assertTrue(b1);


    }

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    /**
     * Some checks for the {@link TimeSeriesCollection#removeSeries(int)}
     * method.
     */
    public void testRemoveSeries_int() {
        TimeSeriesCollection c1 = new TimeSeriesCollection();
        TimeSeries s1 = new TimeSeries("Series 1");
        TimeSeries s2 = new TimeSeries("Series 2");
        TimeSeries s3 = new TimeSeries("Series 3");
        TimeSeries s4 = new TimeSeries("Series 4");
        c1.addSeries(s1);
        c1.addSeries(s2);
        c1.addSeries(s3);
        c1.addSeries(s4);
        c1.removeSeries(2);
        assertTrue(c1.getSeries(2).equals(s4));
        c1.removeSeries(0);
        assertTrue(c1.getSeries(0).equals(s2));
        assertEquals(2, c1.getSeriesCount());
    }

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