Example usage for com.google.common.base Preconditions checkNotNull

Introduction

In this page you can find the example usage for com.google.common.base Preconditions checkNotNull.

Prototype

public static <T> T checkNotNull(T reference, @Nullable Object errorMessage)

Source Link

Document

Ensures that an object reference passed as a parameter to the calling method is not null.

Usage

From source file:com.google.security.zynamics.zylib.gui.zygraph.helpers.ClipboardCopier.java

/**
 * Copies the text content of a node to the clip board.
 * //w  w  w .  j  a v a 2 s. c om
 * @param node The node to copy to the clip board.
 */
public static void copyToClipboard(final ZyGraphNode<?> node) {
    Preconditions.checkNotNull(node, "Error: Node argument can not be null");
    final IZyNodeRealizer realizer = node.getRealizer();
    final ZyLabelContent content = realizer.getNodeContent();

    if (content.isSelectable()) {
        final ZyLabelContent zyContent = content;

        final StringBuilder textBuilder = new StringBuilder();

        for (final ZyLineContent zyLineContent : zyContent) {
            textBuilder.append(zyLineContent.getText());
            textBuilder.append("\n"); //$NON-NLS-1$
        }

        ClipboardHelpers.copyToClipboard(textBuilder.toString());
    }
}

From source file:de.flapdoodle.guava.Folds.java

public static <S, D> D foldLeft(Iterable<? extends S> collection, Foldleft<? super S, D> foldFunction,
        D leftValue) {//  w  w w.j  a v  a2 s.c  o  m
    Preconditions.checkNotNull(collection, "collection is null");
    Preconditions.checkNotNull(foldFunction, "foldFunction is null");

    D ret = leftValue;
    for (S value : collection) {
        ret = foldFunction.apply(ret, value);
    }
    return ret;
}

From source file:com.github.jcustenborder.kafka.connect.cdc.Change.java

static Map<String, Object> sourcePartition(Change change) {
    Preconditions.checkNotNull(change, "change cannot be null.");
    return ImmutableMap.of(Constants.DATABASE_NAME_VARIABLE, change.databaseName(),
            Constants.SCHEMA_NAME_VARIABLE, change.schemaName(), Constants.TABLE_NAME_VARIABLE,
            change.tableName());/*from   w ww . ja va2  s.  co m*/
}

From source file:net.bither.viewsystem.themes.Themes.java

public static synchronized void switchTheme(Theme newTheme) {

    Preconditions.checkNotNull(newTheme, "'newTheme' must be present");

    currentTheme = newTheme;//from  w w w .  j a  v a2 s. co m

    // Gets used in combo box borders and provides the basis for a "default button"
    UIManager.put("nimbusBase", currentTheme.readOnlyComboBox());

    // Provides basis for text
    UIManager.put("nimbusBlueGrey", currentTheme.fadedText());

    UIManager.put("nimbusBorder", currentTheme.text());
    UIManager.put("nimbusDisabledText", currentTheme.fadedText());

    UIManager.put("nimbusLightBackground", currentTheme.sidebarPanelBackground());

    UIManager.put("nimbusFocus", currentTheme.infoAlertBorder());

    UIManager.put("nimbusSelectedText", currentTheme.infoAlertText());
    UIManager.put("nimbusSelection", currentTheme.infoAlertBackground());
    UIManager.put("nimbusSelectionBackground", currentTheme.infoAlertBackground());

    // Scrollbar UI
    Color scrollBarThumb = currentTheme.infoAlertBackground();
    UIManager.put("ScrollBar.thumb", scrollBarThumb);
    UIManager.put("ScrollBar.thumbDarkShadow", scrollBarThumb);
    UIManager.put("ScrollBar.thumbShadow", scrollBarThumb.darker());
    UIManager.put("ScrollBar.thumbHighlight", scrollBarThumb.darker());

    Color scrollBarTrack = currentTheme.detailPanelBackground();
    UIManager.put("ScrollBar.background", new ColorUIResource(Color.RED));
    UIManager.put("ScrollBar.foreground", new ColorUIResource(Color.BLUE));
    UIManager.put("ScrollBar.track", scrollBarTrack);
    UIManager.put("ScrollBar.trackHighlight", new ColorUIResource(Color.YELLOW));

    // Ensure the language icons match the colour scheme
    LanguageKey.resetIcons();

    // Adjust the font size
    initializeFontSize();

}

From source file:co.cask.cdap.examples.profiles.Event.java

public static Event fromJson(ByteBuffer input) {
    Event event = GSON.fromJson(//from w w w  . j  a va2 s.  com
            new InputStreamReader(new ChannelBufferInputStream(ChannelBuffers.wrappedBuffer(input))),
            Event.class);
    Preconditions.checkNotNull(event.getTime(), "Time cannot be null.");
    Preconditions.checkNotNull(event.getUserId(), "User ID cannot be null.");
    Preconditions.checkNotNull(event.getUrl(), "URL cannot be null.");
    return event;
}

From source file:com.google.security.zynamics.binnavi.ZyGraph.Painters.CrossReferencePainter.java

public static void paintCrossReference(final NaviNode node, final INaviCodeNode codeNode,
        final TypeInstanceReference reference, final INaviInstruction instruction) {
    Preconditions.checkNotNull(node, "Error: node argument can not be null");
    Preconditions.checkNotNull(codeNode, "Error: codeNode argument can not be null");
    Preconditions.checkNotNull(reference, "Error: reference argument can not be null");
    Preconditions.checkNotNull(instruction, "Error: instruction argument can not be null");

    final int line = CCodeNodeHelpers.instructionToLine(codeNode, instruction);

    node.clearHighlighting(CHighlightLayers.VARIABLE_LAYER, line);
    node.setHighlighting(CHighlightLayers.VARIABLE_LAYER, line,
            ConfigManager.instance().getColorSettings().getMemRefColor());
}

From source file:org.eclipse.lsp4j.util.Ranges.java

/**
 * {@code true} if the {@link Position position} is either inside or on the
 * border of the {@link Range range}. Otherwise, {@code false}.
 *///from w ww  .  ja v  a 2  s. c  om
public static boolean containsPosition(Range range, Position position) {
    Preconditions.checkNotNull(range, "range");
    Preconditions.checkNotNull(position, "position");
    return (range.getStart().equals(position) || Positions.isBefore(range.getStart(), position)
            && (range.getEnd().equals(position) || Positions.isBefore(position, range.getEnd())));
}

From source file:com.zaradai.kunzite.optimizer.control.OptimizeRequest.java

public static OptimizeRequest newRequest(Class<? extends OptimizerTactic> tactic, String target,
        boolean lookForMaxima, InputRow start) {
    Preconditions.checkNotNull(tactic, "Invalid tactic specified");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(target), "No target specified");
    Preconditions.checkNotNull(start, "No start position specified");

    return new OptimizeRequest(tactic, target, lookForMaxima, start);
}

From source file:com.outerspacecat.memcache.Memcache.java

/**
 * Returns whether or not {@code key} is a valid Memcache key.
 * <p>/*from  w ww  . j a  va 2  s  .c o m*/
 * Memcache keys must be between 1 and 250 characters in length (inclusive),
 * and must contain only non-control, non-whitespace ASCII characters, which
 * corresponds to the range U+0021-U+007E (inclusive).
 * 
 * @param key the key to check for validity. Must be non {@code null}.
 * @return whether or not {@code key} is a valid Memcache key
 */
public static boolean isValidKey(final CharSequence key) {
    Preconditions.checkNotNull(key, "key required");

    return KEY_PATTERN.matcher(key).matches();
}

From source file:com.isotrol.impe3.nr.api.NRTerm.java

/**
 * Creates a new term.//from w  w w  .java2  s.c o m
 * @param field Field name.
 * @param text Term text.
 * @return The created term.
 */
public static NRTerm of(String field, String text) {
    Preconditions.checkNotNull(field, "A field name must be provided");
    return new NRTerm(field, text);
}