Example usage for com.google.gwt.user.client Random nextInt

Introduction

In this page you can find the example usage for com.google.gwt.user.client Random nextInt.

Prototype

public static native int nextInt(int upperBound) ;

Source Link

Document

Returns a random int between 0 (inclusive) and upperBound (exclusive) with roughly equal probability of returning any particular int in this range.

Usage

From source file:org.objectfabric.GWTPlatform.java

License:Apache License

@Override
int randomInt(int limit) {
    return Random.nextInt(limit);
}

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From source file:org.pepstock.jem.gwt.client.ColorsHex.java

License:Open Source License

/**
 * @return a random color :) /*from  ww w  .j  a v a  2 s  .  c o m*/
 */
public static final ColorsHex randomColor() {
    ColorsHex[] allColors = ColorsHex.values();
    return allColors[Random.nextInt(allColors.length)];
}

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From source file:org.primordion.xholon.util.XholonCollections.java

License:Open Source License

/**
 * Randomly permutes the specified list using a default source of randomness.
 * All permutations occur with approximately equal likelihood.
 * This implementation traverses the list backwards, from the last element up to the second,
 * repeatedly swapping a randomly selected element into the "current position".
 * Elements are randomly selected from the portion of the list that runs from the first
 * element to the current position, inclusive.
 * This method runs in linear time./*from ww w.  j  a  v  a2  s. c o  m*/
 * @param list - the list to be shuffled.
 * The performance will degrade if the list does not implement RandomAccess.
 * ArrayList and Vector do implement RandomAccess.
 */
public static void shuffle(List<?> list) {
    for (int i = list.size(); i > 1; i--) {
        Collections.swap(list, i - 1, Random.nextInt(i));
    }
}

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From source file:org.roda.wui.client.common.lists.utils.AsyncTableCell.java

public AsyncTableCell(final Class<T> classToReturn, final Filter filter, final boolean justActive,
        final Facets facets, final String summary, final boolean selectable, final int initialPageSize,
        final int pageSizeIncrement, final O object, List<String> fieldsToReturn) {
    super();//from  w w w.  ja v  a  2s  .  co  m

    this.classToReturn = classToReturn;
    this.initialPageSize = initialPageSize;
    this.pageSizeIncrement = pageSizeIncrement;
    this.object = object;

    final String notNullSummary = StringUtils.isNotBlank(summary) ? summary : "summary" + Random.nextInt(1000);

    this.filter = filter;
    this.justActive = justActive;
    this.facets = facets;
    this.selectable = selectable;

    this.fieldsToReturn = fieldsToReturn;

    display = new AccessibleCellTable<>(getInitialPageSize(),
            (MyCellTableResources) GWT.create(MyCellTableResources.class), getKeyProvider(), summary);
    display.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.DISABLED);
    display.setLoadingIndicator(new HTML(HtmlSnippetUtils.LOADING));

    configure(display);

    this.dataProvider = new MyAsyncDataProvider<T>(display, fieldsToReturn, new IndexResultDataProvider<T>() {

        @Override
        public void getData(Sublist sublist, Sorter sorter, List<String> fieldsToReturn,
                final AsyncCallback<IndexResult<T>> callback) {
            AsyncTableCell.this.getData(AsyncTableCell.this.getFilter(), sublist, sorter, fieldsToReturn,
                    new AsyncCallback<IndexResult<T>>() {

                        @Override
                        public void onFailure(Throwable caught) {
                            callback.onFailure(caught);

                        }

                        @Override
                        public void onSuccess(IndexResult<T> result) {
                            setResult(result);
                            callback.onSuccess(result);
                        }
                    });
        }

        @Override
        public Sorter getSorter(ColumnSortList columnSortList) {
            return AsyncTableCell.this.getSorter(columnSortList);
        }
    }) {

        @Override
        protected void fireChangeEvent(IndexResult<T> result) {
            ValueChangeEvent.fire(AsyncTableCell.this, result);
        }
    };

    dataProvider.addDataDisplay(display);

    resultsPager = new AccessibleSimplePager(AccessibleSimplePager.TextLocation.LEFT,
            (SimplePager.Resources) GWT.create(SimplePager.Resources.class), false, initialPageSize, false,
            false, (SimplePager.ImageButtonsConstants) GWT.create(SimplePager.ImageButtonsConstants.class));
    resultsPager.setDisplay(display);

    pageSizePager = new RodaPageSizePager(getPageSizePagerIncrement());
    pageSizePager.setDisplay(display);

    csvDownloadButton = new Button(messages.tableDownloadCSV());
    csvDownloadButton.addStyleName("btn btn-link csvDownloadButton");

    actionsButton = new Button(messages.tableAction());
    actionsButton.addStyleName("btn btn-link actionsButton");
    actionsButton.setVisible(actionable != null);

    createSelectAllPanel();

    add(selectAllPanel);
    add(display);
    add(resultsPager);
    add(pageSizePager);
    add(csvDownloadButton);
    add(actionsButton);

    csvDownloadButton.addClickHandler(new ClickHandler() {

        @Override
        public void onClick(ClickEvent event) {
            RestUtils.requestCSVExport(getClassToReturn(), getFilter(), dataProvider.getSorter(),
                    dataProvider.getSublist(), getFacets(), getJustActive(), false, notNullSummary + ".csv");
        }
    });

    actionsButton.addClickHandler(new ClickHandler() {

        @Override
        public void onClick(ClickEvent event) {
            showActions();
        }
    });

    selectionModel = new SingleSelectionModel<>(getKeyProvider());

    Handler<T> selectionEventManager = getSelectionEventManager();
    if (selectionEventManager != null) {
        display.setSelectionModel(selectionModel, selectionEventManager);
    } else {
        display.setSelectionModel(selectionModel);
    }

    columnSortHandler = new AsyncHandler(display);
    display.addColumnSortHandler(columnSortHandler);

    addStyleName("my-asyncdatagrid");
    resultsPager.addStyleName("my-asyncdatagrid-pager-results");
    pageSizePager.addStyleName("my-asyncdatagrid-pager-pagesize");
    display.addStyleName("my-asyncdatagrid-display");

    addValueChangeHandler(new ValueChangeHandler<IndexResult<T>>() {
        @Override
        public void onValueChange(ValueChangeEvent<IndexResult<T>> event) {
            selected = new HashSet<>();
            hideSelectAllPanel();
        }
    });

    updateEmptyTableWidget();
}

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From source file:org.roda.wui.common.client.widgets.wcag.AccessibleTextBox.java

public AccessibleTextBox(Label label) {
    super();//w  w w  .j ava  2 s  . co m

    if (this.getElement().getId() == null) {
        this.getElement().setId("id_" + Random.nextInt(99999));
    }

    Label textLabel = label;
    if (textLabel == null) {
        textLabel = new Label("label");
        textLabel.setVisible(false);
    }

    textLabel.getElement().setAttribute("for", this.getElement().getId());
    this.getParent().getParent().getElement().appendChild(textLabel.getElement());
}

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From source file:org.roda.wui.common.client.widgets.wcag.WCAGUtilities.java

public void makeAccessible(Element element) {
    String alignAttribute = element.getAttribute("align");

    if (alignAttribute != null) {
        String className;//from   w  w w  .  j a  va2 s  .c o m
        if ("right".equals(alignAttribute)) {
            className = "alignRight";
        } else if ("left".equals(alignAttribute)) {
            className = "alignLeft";
        } else if ("center".equals(alignAttribute)) {
            className = "alignCenter";
        } else {
            className = "alignJustify";
        }
        element.removeAttribute("align");
        element.addClassName(className);
    }

    if (INPUT_TAGNAMES.contains(element.getTagName())) {
        addAttributeIfNonExistent(element, "title", "t_" + Random.nextInt(1000));
    }

    if (IMG_TAGNAME.equalsIgnoreCase(element.getTagName())) {
        addAttributeIfNonExistent(element, "alt", "img_" + Random.nextInt(10000));
    }

    if (element.getChildCount() > 0) {
        for (int i = 0; i < element.getChildCount(); i++) {
            if (element.getChild(i).getNodeType() == Node.ELEMENT_NODE) {
                makeAccessible((Element) element.getChild(i));
            }
        }
    }

}

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From source file:org.sigmah.client.offline.dao.GuidGenerator.java

License:Open Source License

/**
 * Generates a GUID in compact form./*from   www .java  2s.c o  m*/
 *
 * Examples: length = "VcydxgltxrVZSTV"
 *
 * @param length The number of digits (characters)
 * @param radix Radix (maximum 62)
 * @return GUID in compact form
 */
public static String generateCompact(int length, int radix) {

    char[] uuid = new char[36];

    for (int i = 0; i != length; ++i) {
        uuid[i] = CHARS[Random.nextInt(radix)];
    }
    return new String(uuid);
}

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From source file:org.sigmah.client.offline.dao.GuidGenerator.java

License:Open Source License

public static String generateV4() {

    char[] uuid = new char[36];

    // rfc4122 requires these characters
    uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-';
    uuid[14] = '4';

    // Fill in random data.  At i==19 set the high bits of clock sequence as
    // per rfc4122, sec. 4.1.5
    for (int i = 0; i != 36; i++) {
        if (uuid[i] == 0) {
            int r = Random.nextInt(16);
            uuid[i] = CHARS[(i == 19) ? (r & 0x3) | 0x8 : r & 0xf];
        }/*from  ww w . j  a  va2  s.co m*/
    }
    return new String(uuid);
}

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From source file:org.smartsnip.persistence.blackhole.BlackholePersistenceImpl.java

/**
 * @see org.smartsnip.persistence.IPersistence#getCodeFile(java.lang.Long)
 *///from  w  w w  .ja  v a 2s  . c  o  m
@Override
public File getCodeFile(Long codeId) throws IOException {
    checkFail();
    Byte[] content = new Byte[10000];
    Byte data;
    for (int i = 0; i < content.length; ++i) {
        data = new Integer(Random.nextInt(255) - 128).byteValue();
        content[i] = data;
    }
    return helper.createCodeFile("testfile.bin", content);
}

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From source file:org.thechiselgroup.biomixer.client.core.development.BenchmarkResourceSetFactory.java

License:Apache License

private static Date createRandomDate(int numberOfDaysIntoPast, long timestamp) {

    int intervalLength = numberOfDaysIntoPast * MILLISECONDS_PER_DAY;
    int randomValue = Random.nextInt(intervalLength);
    return new Date(timestamp - randomValue);
}

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