Examples of org.jfree.data.time.TimeSeries

org.jfree.data.time.TimeSeries
Represents a sequence of zero or more data items in the form (period, value) where 'period' is some instance of a subclass of {@link RegularTimePeriod}. The time series will ensure that (a) all data items have the same type of period (for example, {@link Day}) and (b) that each period appears at most one time in the series.

     * Create a TimeSeriesDataItem, add it to a TimeSeries.  Now, modifying
     * the original TimeSeriesDataItem should NOT affect the TimeSeries.
     */
    public void testAdd_TimeSeriesDataItem() {
        TimeSeriesDataItem item = new TimeSeriesDataItem(new Year(2009), 1.0);
        TimeSeries series = new TimeSeries("S1");
        series.add(item);
        assertTrue(item.equals(series.getDataItem(0)));
        item.setValue(new Double(99.9));
        assertFalse(item.equals(series.getDataItem(0)));
    }

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    /**
     * A test for the bug report 1075255.
     */
    public void testBug1075255() {
        TimeSeries ts = new TimeSeries("dummy", FixedMillisecond.class);
        ts.add(new FixedMillisecond(0L), 0.0);
        TimeSeries ts2 = new TimeSeries("dummy2", FixedMillisecond.class);
        ts2.add(new FixedMillisecond(0L), 1.0);
        try {
            ts.addAndOrUpdate(ts2);
        }
        catch (Exception e) {
            e.printStackTrace();

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    /**
     * A test for bug 1832432.
     */
    public void testBug1832432() {
        TimeSeries s1 = new TimeSeries("Series");
        TimeSeries s2 = null;
        try {
            s2 = (TimeSeries) s1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(s1 != s2);
        assertTrue(s1.getClass() == s2.getClass());
        assertTrue(s1.equals(s2));


        // test independence
        s1.add(new Day(1, 1, 2007), 100.0);
        assertFalse(s1.equals(s2));

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    /**
     * Some checks for the getIndex() method.
     */
    public void testGetIndex() {
        TimeSeries series = new TimeSeries("Series", Month.class);
        assertEquals(-1, series.getIndex(new Month(1, 2003)));


        series.add(new Month(1, 2003), 45.0);
        assertEquals(0, series.getIndex(new Month(1, 2003)));
        assertEquals(-1, series.getIndex(new Month(12, 2002)));
        assertEquals(-2, series.getIndex(new Month(2, 2003)));


        series.add(new Month(3, 2003), 55.0);
        assertEquals(-1, series.getIndex(new Month(12, 2002)));
        assertEquals(0, series.getIndex(new Month(1, 2003)));
        assertEquals(-2, series.getIndex(new Month(2, 2003)));
        assertEquals(1, series.getIndex(new Month(3, 2003)));
        assertEquals(-3, series.getIndex(new Month(4, 2003)));
    }

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    /**
     * Some checks for the getDataItem(int) method.
     */
    public void testGetDataItem1() {
        TimeSeries series = new TimeSeries("S", Year.class);


        // can't get anything yet...just an exception
        boolean pass = false;
        try {
            /*TimeSeriesDataItem item =*/ series.getDataItem(0);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);


        series.add(new Year(2006), 100.0);
        TimeSeriesDataItem item = series.getDataItem(0);
        assertEquals(new Year(2006), item.getPeriod());
        pass = false;
        try {
            /*item = */series.getDataItem(-1);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);


        pass = false;
        try {
            /*item = */series.getDataItem(1);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);

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    /**
     * Some checks for the getDataItem(RegularTimePeriod) method.
     */
    public void testGetDataItem2() {
        TimeSeries series = new TimeSeries("S", Year.class);
        assertNull(series.getDataItem(new Year(2006)));


        // try a null argument
        boolean pass = false;
        try {
            /* TimeSeriesDataItem item = */ series.getDataItem(null);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

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    /**
     * Some checks for the removeAgedItems() method.
     */
    public void testRemoveAgedItems() {
        TimeSeries series = new TimeSeries("Test Series", Year.class);
        series.addChangeListener(this);
        assertEquals(Long.MAX_VALUE, series.getMaximumItemAge());
        assertEquals(Integer.MAX_VALUE, series.getMaximumItemCount());
        this.gotSeriesChangeEvent = false;


        // test empty series
        series.removeAgedItems(true);
        assertEquals(0, series.getItemCount());
        assertFalse(this.gotSeriesChangeEvent);


        // test series with one item
        series.add(new Year(1999), 1.0);
        series.setMaximumItemAge(0);
        this.gotSeriesChangeEvent = false;
        series.removeAgedItems(true);
        assertEquals(1, series.getItemCount());
        assertFalse(this.gotSeriesChangeEvent);


        // test series with two items
        series.setMaximumItemAge(10);
        series.add(new Year(2001), 2.0);
        this.gotSeriesChangeEvent = false;
        series.setMaximumItemAge(2);
        assertEquals(2, series.getItemCount());
        assertEquals(0, series.getIndex(new Year(1999)));
        assertFalse(this.gotSeriesChangeEvent);
        series.setMaximumItemAge(1);
        assertEquals(1, series.getItemCount());
        assertEquals(0, series.getIndex(new Year(2001)));
        assertTrue(this.gotSeriesChangeEvent);
    }

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    /**
     * Some checks for the removeAgedItems(long, boolean) method.
     */
    public void testRemoveAgedItems2() {
        long y2006 = 1157087372534L;  // milliseconds somewhere in 2006
        TimeSeries series = new TimeSeries("Test Series", Year.class);
        series.addChangeListener(this);
        assertEquals(Long.MAX_VALUE, series.getMaximumItemAge());
        assertEquals(Integer.MAX_VALUE, series.getMaximumItemCount());
        this.gotSeriesChangeEvent = false;


        // test empty series
        series.removeAgedItems(y2006, true);
        assertEquals(0, series.getItemCount());
        assertFalse(this.gotSeriesChangeEvent);


        // test a series with 1 item
        series.add(new Year(2004), 1.0);
        series.setMaximumItemAge(1);
        this.gotSeriesChangeEvent = false;
        series.removeAgedItems(new Year(2005).getMiddleMillisecond(), true);
        assertEquals(1, series.getItemCount());
        assertFalse(this.gotSeriesChangeEvent);
        series.removeAgedItems(y2006, true);
        assertEquals(0, series.getItemCount());
        assertTrue(this.gotSeriesChangeEvent);


        // test a series with two items
        series.setMaximumItemAge(2);
        series.add(new Year(2003), 1.0);
        series.add(new Year(2005), 2.0);
        assertEquals(2, series.getItemCount());
        this.gotSeriesChangeEvent = false;
        assertEquals(2, series.getItemCount());


        series.removeAgedItems(new Year(2005).getMiddleMillisecond(), true);
        assertEquals(2, series.getItemCount());
        assertFalse(this.gotSeriesChangeEvent);
        series.removeAgedItems(y2006, true);
        assertEquals(1, series.getItemCount());
        assertTrue(this.gotSeriesChangeEvent);
    }

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    /**
     * Calling removeAgedItems() on an empty series should not throw any
     * exception.
     */
    public void testRemoveAgedItems3() {
        TimeSeries s = new TimeSeries("Test");
        boolean pass = true;
        try {
            s.removeAgedItems(0L, true);
        }
        catch (Exception e) {
            pass = false;
        }
        assertTrue(pass);

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    /**
     * Check that the item bounds are determined correctly when there is a
     * maximum item count.
     */
    public void testRemoveAgedItems4() {
        TimeSeries s1 = new TimeSeries("S1");
        s1.setMaximumItemAge(2);
        s1.add(new Year(2010), 1.1);
        s1.add(new Year(2011), 2.2);
        s1.add(new Year(2012), 3.3);
        s1.add(new Year(2013), 2.5);
        assertEquals(3, s1.getItemCount());
        assertEquals(2.2, s1.getMinY(), EPSILON);
        assertEquals(3.3, s1.getMaxY(), EPSILON);
    }

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