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

Introduction

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

Prototype

public static void checkArgument(boolean expression, @Nullable Object errorMessage)

Source Link

Document

Ensures the truth of an expression involving one or more parameters to the calling method.

Usage

From source file:com.qcadoo.mes.materialFlowResources.constants.ProductsToUpdate.java

public static ProductsToUpdate of(final Entity entity) {
    Preconditions.checkArgument(entity != null, "Passed entity have to be non null");
    return parseString(entity.getStringField(CostNormsGeneratorFields.PRODUCTS_TO_UPDATE));
}

From source file:com.dnanexus.DXProject.java

private static void checkProjectId(String projectId) {
    Preconditions.checkArgument(projectId.startsWith("project-"),
            "Project ID " + projectId + " must start with project-");
}

From source file:org.haiku.haikudepotserver.job.model.JobDataWithByteSink.java

public JobDataWithByteSink(JobData jobData, ByteSink byteSink) {
    Preconditions.checkArgument(null != jobData, "the job data must be supplied");
    Preconditions.checkArgument(null != byteSink, "the byte sink must be supplied");
    this.jobData = jobData;
    this.byteSink = byteSink;
}

From source file:org.haiku.haikudepotserver.job.model.JobDataWithByteSource.java

public JobDataWithByteSource(JobData jobData, ByteSource byteSource) {
    Preconditions.checkArgument(null != jobData, "job data must be supplied");
    Preconditions.checkArgument(null != byteSource, "byte source must be supplied");
    this.jobData = jobData;
    this.byteSource = byteSource;
}

From source file:eu.interedition.text.util.Database.java

public static JdbcConnectionPool h2(File directory) {
    Preconditions.checkArgument(directory.isDirectory() || directory.mkdirs(), directory);
    return h2(new File(directory, "texts").getPath() + ";DB_CLOSE_DELAY=10;CACHE_SIZE=131072");
}

From source file:org.tensorics.core.function.MathFunctions.java

public static <X, Y> Tensor<DiscreteFunction<X, Y>> functionsFrom(Tensor<Y> tensor, Class<X> dimensionClass) {
    Preconditions.checkArgument(tensor.shape().dimensionality() >= 1,
            "tensor must contain at least one dimension");
    return Tensorics.from(tensor).reduce(dimensionClass).by(new ToFunctions<>());
}

From source file:org.apache.james.util.streams.JamesCollectors.java

public static <D> Collector<D, ?, Map<Integer, List<D>>> chunker(int chunkSize) {
    Preconditions.checkArgument(chunkSize > 0, "ChunkSize should be strictly positive");
    AtomicInteger counter = new AtomicInteger(-1);
    return Collectors.groupingBy(x -> counter.incrementAndGet() / chunkSize);
}

From source file:net.minecrell.serverlistplus.canary.CanaryFavicon.java

public static String create(BufferedImage image) {
    Preconditions.checkArgument(image.getWidth() == 64 && image.getHeight() == 64, "Invalid favicon bounds");

    byte[] buf;/*from  w  ww  .ja  v a2s. c om*/
    try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
        ImageIO.write(image, "PNG", out);
        buf = out.toByteArray();
    } catch (IOException e) {
        throw new AssertionError(e);
    }

    return "data:image/png;base64," + BaseEncoding.base64().encode(buf);
}

From source file:org.sonar.core.measure.db.MeasureKey.java

public static MeasureKey of(String componentKey, String metricKey) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(componentKey), "Component key must be set");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(metricKey), "Metric key must be set");
    return new MeasureKey(componentKey, metricKey);
}

From source file:io.druid.segment.data.RangeIndexedInts.java

public static RangeIndexedInts create(final int size) {
    Preconditions.checkArgument(size >= 0, "size >= 0");
    if (size < CACHE_LIMIT) {
        return CACHE[size];
    } else {/*from   w  w  w . j a  va 2 s  .c  om*/
        return new RangeIndexedInts(size);
    }
}