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.yfileswrap.gui.zygraph.editmode.helpers.CTooltipUpdater.java

/**
 * Determines whether a given node is a proximity node.
 * // w w  w .j ava 2  s.c  om
 * @param graph The graph the node belongs to.
 * @param node The node to check.
 * 
 * @return True, if the node is a proximity node. False, otherwise.
 */
public static boolean isProximityNode(final AbstractZyGraph<?, ?> graph, final Node node) {
    Preconditions.checkNotNull(graph, "Graph argument can not be null");
    Preconditions.checkNotNull(node, "Node argument can not be null");

    return graph.getGraph().getRealizer(node) instanceof ZyProximityNodeRealizer<?>;
}

From source file:com.google.security.zynamics.binnavi.ZyGraph.Implementations.CEdgeDrawingFunctions.java

/**
 * Calculates whether edges are drawn in sloppy mode or normal node.
 *
 * @param graph The graph for which the result is calculated.
 *
 * @return True, if edges are drawn in sloppy mode.
 *//*from  w  w w  .jav  a  2s  .  c om*/
public static boolean calcDrawSloppyEdges(final ZyGraph graph) {
    Preconditions.checkNotNull(graph, "IE02113: Graph argument can not be null");

    final EdgeHidingMode mode = graph.getSettings().getEdgeSettings().getEdgeHidingMode();

    return (mode == EdgeHidingMode.HIDE_NEVER) || ((mode == EdgeHidingMode.HIDE_ON_THRESHOLD)
            && (graph.getSettings().getEdgeSettings().getEdgeHidingThreshold() > graph.getEdgeCount()));
}

From source file:io.airlift.airship.shared.MavenCoordinates.java

public static MavenCoordinates fromConfigGAV(String configSpec) {
    Preconditions.checkNotNull(configSpec, "configSpec is null");
    if (!configSpec.startsWith("@")) {
        return null;
    }//from   ww w  . jav a  2s .  co  m
    configSpec = configSpec.substring(1);
    return fromGAV(configSpec, DEFAULT_CONFIG_PACKAGING);
}

From source file:com.github.jeluard.guayaba.util.concurrent.ConcurrentMaps.java

/**
 * Returns value associated with key if exists.
 * Otherwise create value using provided {@link Supplier}, insert it map then returns it.
 *
 * TODO improve based on http://blog.boundary.com/2011/05/
 *
 * @param <K>//from   w  w w .j a v a  2 s  .  c  om
 * @param <V>
 * @param concurrentMap
 * @param key
 * @param supplier
 * @return previous value if exists; result of {@link Supplier#get()} otherwise
 */
public static synchronized <K, V> V putIfAbsentAndReturn(final ConcurrentMap<K, V> concurrentMap, final K key,
        final Supplier<V> supplier) {
    Preconditions.checkNotNull(concurrentMap, "null concurrentMap");
    Preconditions.checkNotNull(key, "null key");
    Preconditions.checkNotNull(supplier, "null supplier");

    if (concurrentMap.containsKey(key)) {
        return concurrentMap.get(key);
    }

    final V value = supplier.get();
    concurrentMap.put(key, value);
    return value;
}

From source file:com.twitter.finagle.common.base.MorePreconditions.java

/**
 * Checks that a string is both non-null and non-empty.
 *
 * @see #checkNotBlank(String, String, Object...)
 *//*from w w  w  .  jav  a 2 s  .  c o  m*/
public static String checkNotBlank(String argument) {
    Preconditions.checkNotNull(argument, ARG_NOT_BLANK_MSG);
    Preconditions.checkArgument(!StringUtils.isBlank(argument), ARG_NOT_BLANK_MSG);
    return argument;
}

From source file:com.marand.thinkmed.medications.task.TherapyTaskUtils.java

public static List<String> getPatientIdKeysForTaskTypes(@Nonnull final Set<String> patientIdsSet,
        @Nonnull final Set<TaskTypeEnum> taskTypesSet) {
    Preconditions.checkNotNull(patientIdsSet, "patientIdsSet is null");
    Preconditions.checkNotNull(taskTypesSet, "taskTypesSet is null");
    final List<String> patientIdKeys = new ArrayList<>();
    for (final String patientId : patientIdsSet) {
        Preconditions.checkNotNull(patientId, "patientId is null");
        for (final TaskTypeEnum taskType : taskTypesSet) {
            Preconditions.checkNotNull(taskType, "taskType is null");
            patientIdKeys.add(taskType.buildKey(patientId));
        }/*from  w  w  w  . j  av  a2 s.com*/
    }
    return patientIdKeys;
}

From source file:com.outerspacecat.openid.rp.SessionType.java

/**
 * Returns whether or not {@code value} represents a session type.
 * //w  w w  . j  av a2s .c o m
 * @param value the value to test. Must be non {@code null}.
 * @return whether or not {@code value} represents a session type
 */
static boolean isValidValue(final String value) {
    Preconditions.checkNotNull(value, "value required");

    return value.equalsIgnoreCase(NO_ENCRYPTION.getValue()) || value.equalsIgnoreCase(DH_SHA1.getValue())
            || value.equalsIgnoreCase(DH_SHA256.getValue());
}

From source file:com.aestasit.markdown.slidery.Slidery.java

public static String toSlides(RootNode node) {
    Preconditions.checkNotNull(node, "astRoot");
    return getConverter().toHtml(node);
}

From source file:com.google.security.zynamics.binnavi.Gui.GraphWindows.BottomPanel.RegisterTracker.CResultText.java

/**
 * Determines the description text used to display a given instruction.
 *
 * @param startInstruction Start instruction of the tracking operation.
 * @param trackedRegister The tracked register.
 * @param result Result of the tracking operation.
 *
 * @return Description text used to display the result instruction.
 *///from   w  w  w  . jav a2  s. c o m
public static String determineDescription(final INaviInstruction startInstruction, final String trackedRegister,
        final CInstructionResult result) {
    Preconditions.checkNotNull(startInstruction, "IE01680: Start instruction argument can not be null");
    Preconditions.checkNotNull(trackedRegister, "IE01681: Tracked register argument can not be null");
    Preconditions.checkNotNull(result, "IE01682: Result argument can not be null");

    if (result.getInstruction() == startInstruction) {
        return "Start";
    } else if (result.undefinesAll()) {
        // This is the text for instructions that undefine all tracked
        // registers and therefore end the register tracking for one
        // code execution path.

        return "Clears all effects";
    } else if (result.clearsTrackedRegister(trackedRegister)) {
        // This is the text used for instructions that undefined the
        // tracked register but do not undefine all tracked registers.

        return "Clears tracked register";
    } else if (result.undefinesSome()) {
        // This is the text used for instructions that undefine some
        // tracked registers but not the originally tracked register.

        return "Clears some effects";
    } else if (result.defines()) {
        // This is the text used for instructions that do not undefine
        // any registers but use any of the tracked registers.

        return "Depends on tracked register";
    } else if (result.updates()) {
        // This is the test used for instructions that update any of
        // the tainted registers with new information.
        return "Updates tainted register";
    } else if (result.uses()) {
        // This is the text used for instructions that read any of
        // the tainted registers.
        return "Reads tainted register";
    } else {
        return "";
    }
}

From source file:org.opendaylight.controller.cluster.datastore.identifiers.ShardTransactionIdentifier.java

public ShardTransactionIdentifier(String remoteTransactionId) {
    this.remoteTransactionId = Preconditions.checkNotNull(remoteTransactionId,
            "remoteTransactionId should not be null");
}