Examples with ListNumber org.diirt.util.array.ListNumber used on opensource projects

Example 11 with ListNumber

use of org.diirt.util.array.ListNumber in project org.csstudio.display.builder by kasemir.

the class ValueUtil method getTable.

/**
 * Get a table from PV
 *
 *  <p>Ideally, the PV holds a {@link VTable},
 *  and the returned data is then the table's data.
 *
 *  <p>If the PV is a scalar, a table with a single cell is returned.
 *  <p>If the PV is an array, a table with one column is returned.
 *
 *  @param value Value of a PV
 *  @return List of rows, where each row contains either String or Number cells
 */
@SuppressWarnings("rawtypes")
public static List<List<Object>> getTable(final VType value) {
    final List<List<Object>> data = new ArrayList<>();
    if (value instanceof VTable) {
        final VTable table = (VTable) value;
        final int rows = table.getRowCount();
        final int cols = table.getColumnCount();
        // Extract 2D string matrix for data
        for (int r = 0; r < rows; ++r) {
            final List<Object> row = new ArrayList<>(cols);
            for (int c = 0; c < cols; ++c) {
                final Object col_data = table.getColumnData(c);
                if (col_data instanceof List)
                    row.add(Objects.toString(((List) col_data).get(r)));
                else if (col_data instanceof ListDouble)
                    row.add(((ListDouble) col_data).getDouble(r));
                else if (col_data instanceof ListNumber)
                    row.add(((ListNumber) col_data).getLong(r));
                else
                    row.add(Objects.toString(col_data));
            }
            data.add(row);
        }
    } else if (value instanceof VNumberArray) {
        final ListNumber numbers = ((VNumberArray) value).getData();
        final int num = numbers.size();
        for (int i = 0; i < num; ++i) data.add(Arrays.asList(numbers.getDouble(i)));
    } else if (value instanceof VNumber)
        data.add(Arrays.asList(((VNumber) value).getValue()));
    else
        data.add(Arrays.asList(Objects.toString(value)));
    return data;
}

Example 12 with ListNumber

use of org.diirt.util.array.ListNumber in project org.csstudio.display.builder by kasemir.

the class ArrayPVDispatcherTest method testArrayPVDispatcher.

/**
 * Test double-typed array PV
 */
@Test
public void testArrayPVDispatcher() throws Exception {
    // Array PV. It's elements are to be dispatched into separate PVs
    final RuntimePV array_pv = PVFactory.getPV("loc://an_array(1.0, 2.0, 3, 4)");
    // The per-element PVs that will be bound to the array
    final AtomicReference<List<RuntimePV>> element_pvs = new AtomicReference<>();
    final CountDownLatch got_element_pvs = new CountDownLatch(1);
    // Listener to the ArrayPVDispatcher
    final Listener dispatch_listener = new Listener() {

        @Override
        public void arrayChanged(final List<RuntimePV> pvs) {
            System.out.println("Per-element PVs: ");
            element_pvs.set(pvs);
            dump(pvs);
            got_element_pvs.countDown();
        }
    };
    final ArrayPVDispatcher dispatcher = new ArrayPVDispatcher(array_pv, "elementA247FE_", dispatch_listener);
    // Await initial set of per-element PVs
    got_element_pvs.await();
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(0).read()).doubleValue(), equalTo(1.0));
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(1).read()).doubleValue(), equalTo(2.0));
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(2).read()).doubleValue(), equalTo(3.0));
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(3).read()).doubleValue(), equalTo(4.0));
    // Change array -> Observe update of per-element PV
    System.out.println("Updating array");
    array_pv.write(new double[] { 1.0, 22.5, 3, 4 });
    dump(element_pvs.get());
    // On one hand, this changed only one array element.
    // On the other hand, it's a new array value with a new time stamp.
    // Unclear if the array dispatcher should detect this and only update
    // the per-element PVs that really have a new value, or all.
    // Currently it updates all, but the test is satisfied with just one update:
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(1).read()).doubleValue(), equalTo(22.5));
    // Change per-element PV -> Observe update of array
    System.out.println("Updating per-element PV for element [2]");
    element_pvs.get().get(2).write(30.7);
    // Test assumes a local array PV which immediately reflects the change.
    // A "real" PV can have a delay between writing a new value and receiving the update.
    final ListNumber array_value = ((VNumberArray) array_pv.read()).getData();
    System.out.println("Array: " + array_value);
    assertThat(array_value.getDouble(2), equalTo(30.7));
    // Close dispatcher
    dispatcher.close();
    // Close the array PV
    PVFactory.releasePV(array_pv);
}

Example 13 with ListNumber

use of org.diirt.util.array.ListNumber in project yamcs-studio by yamcs.

the class VTypeHelper method formatNumberArray.

private static String formatNumberArray(FormatEnum formatEnum, VNumberArray pmArray, int precision) {
    ListNumber data = ((VNumberArray) pmArray).getData();
    if (formatEnum == FormatEnum.STRING) {
        final byte[] bytes = new byte[data.size()];
        // Copy bytes until end _or_ '\0'
        int len = 0;
        while (len < bytes.length) {
            final byte b = data.getByte(len);
            if (b == 0)
                break;
            else
                bytes[len++] = b;
        }
        return new String(bytes, 0, len);
    } else {
        if (data.size() <= 0)
            // $NON-NLS-1$
            return "[]";
        int displayPrecision = calculatePrecision(pmArray, precision);
        StringBuilder sb = new StringBuilder(data.size());
        sb.append(formatScalarNumber(formatEnum, data.getDouble(0), displayPrecision));
        for (int i = 1; i < data.size(); i++) {
            sb.append(ARRAY_ELEMENT_SEPARATOR);
            sb.append(formatScalarNumber(formatEnum, data.getDouble(i), displayPrecision));
            if (i >= MAX_FORMAT_VALUE_COUNT) {
                sb.append(ARRAY_ELEMENT_SEPARATOR);
                // $NON-NLS-1$
                sb.append("...");
                sb.append(formatScalarNumber(formatEnum, data.getDouble(data.size() - 1), displayPrecision));
                // $NON-NLS-1$
                sb.append(" ");
                // $NON-NLS-1$
                sb.append("[");
                sb.append(data.size());
                // $NON-NLS-1$
                sb.append("]");
                break;
            }
        }
        return sb.toString();
    }
}

Example 14 with ListNumber

use of org.diirt.util.array.ListNumber in project yamcs-studio by yamcs.

the class ValueFactory method toVType.

/**
 * Converts a standard java type to VTypes. Returns null if no conversion
 * is possible.
 * <p>
 * Types are converted as follow:
 * <ul>
 *   <li>Boolean -&gt; VBoolean</li>
 *   <li>Number -&gt; corresponding VNumber</li>
 *   <li>String -&gt; VString</li>
 *   <li>number array -&gt; corresponding VNumberArray</li>
 *   <li>ListNumber -&gt; corresponding VNumberArray</li>
 *   <li>List -&gt; if all elements are String, VStringArray</li>
 * </ul>
 *
 * @param javaObject the value to wrap
 * @param alarm the alarm
 * @param time the time
 * @param display the display
 * @return the new VType value
 */
public static VType toVType(Object javaObject, Alarm alarm, Time time, Display display) {
    if (javaObject instanceof Number) {
        return ValueFactory.newVNumber((Number) javaObject, alarm, time, display);
    } else if (javaObject instanceof String) {
        return newVString((String) javaObject, alarm, time);
    } else if (javaObject instanceof Boolean) {
        return newVBoolean((Boolean) javaObject, alarm, time);
    } else if (javaObject instanceof byte[] || javaObject instanceof short[] || javaObject instanceof int[] || javaObject instanceof long[] || javaObject instanceof float[] || javaObject instanceof double[]) {
        return newVNumberArray(ListNumbers.toListNumber(javaObject), alarm, time, display);
    } else if (javaObject instanceof ListNumber) {
        return newVNumberArray((ListNumber) javaObject, alarm, time, display);
    } else if (javaObject instanceof String[]) {
        return newVStringArray(Arrays.asList((String[]) javaObject), alarm, time);
    } else if (javaObject instanceof List) {
        boolean matches = true;
        List list = (List) javaObject;
        for (Object object : list) {
            if (!(object instanceof String)) {
                matches = false;
            }
        }
        if (matches) {
            @SuppressWarnings("unchecked") List<String> newList = (List<String>) list;
            return newVStringArray(Collections.unmodifiableList(newList), alarm, time);
        } else {
            return null;
        }
    } else {
        return null;
    }
}

Example 15 with ListNumber

use of org.diirt.util.array.ListNumber in project yamcs-studio by yamcs.

the class ValueUtil method toImage.

/**
 * Converts a VImage to an AWT BufferedImage, so that it can be displayed. The content of the vImage buffer is
 * copied, so further changes to the VImage will not modify the BufferedImage.
 *
 * @param vImage
 *            the image to be converted
 * @return a new BufferedImage
 */
public static BufferedImage toImage(VImage vImage) {
    if (vImage.getVImageType() == VImageType.TYPE_3BYTE_BGR) {
        BufferedImage image = new BufferedImage(vImage.getWidth(), vImage.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
        ListNumber data = vImage.getData();
        for (int i = 0; i < data.size(); i++) {
            ((DataBufferByte) image.getRaster().getDataBuffer()).getData()[i] = data.getByte(i);
        }
        return image;
    } else {
        throw new UnsupportedOperationException("No support for creating a BufferedImage from Image Type: " + vImage.getVImageType());
    }
}