Example usage for java.util Arrays stream

List of usage examples for java.util Arrays stream

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Introduction

In this page you can find the example usage for java.util Arrays stream.

Prototype

public static DoubleStream stream(double[] array)

Source Link

Document

Returns a sequential DoubleStream with the specified array as its source.

Usage

From source file:ClientEncryptionServerMultipart.java

private static void multipartUpload(EncryptedServerSideMultipartManager multipart) {
    String uploadObject = "/" + mantaUsername + "/stor/multipart";

    // We catch network errors and handle them here
    try {// ww w.  ja  v a2s . c om
        MantaMetadata metadata = new MantaMetadata();
        metadata.put("e-secretkey", "My Secret Value");
        EncryptedMultipartUpload<ServerSideMultipartUpload> upload = multipart.initiateUpload(uploadObject,
                metadata);
        MantaMultipartUploadPart part1 = multipart.uploadPart(upload, 1, RandomUtils.nextBytes(5242880));
        MantaMultipartUploadPart part2 = multipart.uploadPart(upload, 2, RandomUtils.nextBytes(1000000));

        // Complete the process by instructing Manta to assemble the final object from its parts
        MantaMultipartUploadTuple[] parts = new MantaMultipartUploadTuple[] { part1, part2 };
        Stream<MantaMultipartUploadTuple> partsStream = Arrays.stream(parts);
        multipart.complete(upload, partsStream);

        System.out.println(uploadObject + " is now assembled!");
    } catch (IOException e) {
        // This catch block is for general network failures
        // For example, ServerSideMultipartUpload.initiateUpload can throw an IOException

        ContextedRuntimeException exception = new ContextedRuntimeException(
                "A network error occurred when doing a multipart upload to Manta.");
        exception.setContextValue("path", uploadObject);

        throw exception;
    }
}

From source file:com.netflix.spinnaker.halyard.config.validate.v1.FieldValidator.java

private void validateFieldForSpinnakerVersion(ConfigProblemSetBuilder p, Node n) {
    DeploymentConfiguration deploymentConfiguration = n.parentOfType(DeploymentConfiguration.class);
    String spinnakerVersion = deploymentConfiguration.getVersion();
    if (spinnakerVersion == null) {
        return;/*from w w  w  .  j av  a  2  s .  c om*/
    }

    Class clazz = n.getClass();
    while (clazz != Object.class) {
        Class finalClazz = clazz;
        Arrays.stream(clazz.getDeclaredFields()).forEach(field -> {
            ValidForSpinnakerVersion annotation = field.getDeclaredAnnotation(ValidForSpinnakerVersion.class);
            try {
                field.setAccessible(true);
                Object v = field.get(n);
                boolean fieldNotValid = false;
                String invalidFieldMessage = "";
                String remediation = "";
                if (v != null && annotation != null) {
                    if (Versions.lessThan(spinnakerVersion, annotation.lowerBound())) {
                        fieldNotValid = true;
                        invalidFieldMessage = annotation.tooLowMessage();
                        remediation = "Use at least " + annotation.lowerBound()
                                + " (It may not have been released yet).";
                    } else if (!StringUtils.equals(annotation.upperBound(), "")
                            && Versions.greaterThanEqual(spinnakerVersion, annotation.upperBound())) {
                        fieldNotValid = true;
                        invalidFieldMessage = annotation.tooHighMessage();
                        remediation = "You no longer need this.";
                    }
                }

                // If the field was set to false, it's assumed it's not enabling a restricted feature
                if (fieldNotValid && (v instanceof Boolean) && !((Boolean) v)) {
                    fieldNotValid = false;
                }

                // If the field is a collection, it may be empty
                if (fieldNotValid && (v instanceof Collection) && ((Collection) v).isEmpty()) {
                    fieldNotValid = false;
                }

                if (fieldNotValid) {
                    p.addProblem(Problem.Severity.WARNING,
                            "Field " + finalClazz.getSimpleName() + "." + field.getName()
                                    + " not supported for Spinnaker version " + spinnakerVersion + ": "
                                    + invalidFieldMessage)
                            .setRemediation(remediation);
                }
            } catch (NumberFormatException /* Probably using nightly build */ e) {
                log.info("Nightly builds do not contain version information.");
            } catch (IllegalAccessException /* Probably shouldn't happen */ e) {
                log.warn("Error validating field " + finalClazz.getSimpleName() + "." + field.getName() + ": ",
                        e);
            }
        });
        clazz = clazz.getSuperclass();
    }
}

From source file:ee.ria.xroad.common.certificateprofile.impl.AbstractCertificateProfileInfo.java

@Override
public X500Principal createSubjectDn(DnFieldValue[] values) {
    return new X500Principal(
            StringUtils.join(Arrays.stream(values).map(this::toString).collect(Collectors.toList()), ", "));
}

From source file:eu.openanalytics.shinyproxy.UISecurityConfig.java

@Override
public void apply(HttpSecurity http) throws Exception {
    if (auth.hasAuthorization()) {

        // Limit access to the app pages according to spec permissions
        for (ProxySpec spec : proxyService.getProxySpecs(null, true)) {
            if (spec.getAccessControl() == null)
                continue;

            String[] groups = spec.getAccessControl().getGroups();
            if (groups == null || groups.length == 0)
                continue;

            String[] appGroups = Arrays.stream(groups).map(s -> s.toUpperCase()).toArray(i -> new String[i]);
            http.authorizeRequests().antMatchers("/app/" + spec.getId()).hasAnyRole(appGroups);
        }/* ww w.  j  a  v a2  s  . c o m*/

        // Limit access to the admin pages
        http.authorizeRequests().antMatchers("/admin").hasAnyRole(userService.getAdminGroups());
    }
}

From source file:com.intuit.wasabi.repository.cassandra.ClientConfiguration.java

@Override
public List<String> getNodeHosts() {
    return Arrays.stream(getProperty("nodeHosts", properties).split(",")).map(String::trim)
            .collect(Collectors.toList());
}

From source file:edu.brandeis.wisedb.scheduler.experiments.SkewDistributionExperiment.java

public static void calculateBurn(int samples) throws Exception {
    TightenableSLA sla = PercentSLA.nintyTenSLA();
    //TightenableSLA sla = new SimpleLatencyModelSLA(9 * 60 * 1000, 1);
    //TightenableSLA sla = PerQuerySLA.getLatencyTimesN(2.0);
    //TightenableSLA sla = new AverageLatencyModelSLA(7 * 60 * 1000, 1);
    QueryTimePredictor qtp = new QueryTimePredictor();

    File f = new File("distSkew.csv");
    if (f.exists())
        f.delete();//from  w w w. j  ava2  s  .c om

    try (Trainer t = new Trainer("distSkew.csv", sla)) {
        t.train(2000, 12);
    }

    DTSearcher dt = new DTSearcher("distSkew.csv", qtp, sla);
    AStarGraphSearch astar = new AStarGraphSearch(new UnassignedQueryTimeHeuristic(qtp), sla, qtp);
    //FirstFitDecreasingGraphSearch astar = new FirstFitDecreasingGraphSearch(sla, qtp);

    ChiSquareTest cst = new ChiSquareTest();
    ChiSquaredDistribution cqd = new ChiSquaredDistribution(qtp.QUERY_TYPES.length - 1);
    double[] expceted = Arrays.stream(qtp.QUERY_TYPES).mapToDouble(i -> 20.0 / (qtp.QUERY_TYPES.length))
            .toArray();

    System.out.println("Chi\tDT\tOpt");

    for (int i = 0; i < samples; i++) {
        Set<ModelQuery> smp = ModelWorkloadGenerator.randomQueries(20);

        // reject samples that don't have at least one of each query type
        long repr = smp.stream().mapToInt(q -> q.getType()).distinct().count();
        if (repr != qtp.QUERY_TYPES.length) {
            i--;
            continue;
        }

        Map<Integer, List<ModelQuery>> groups = smp.stream().collect(Collectors.groupingBy(q -> q.getType()));

        long obs[] = Arrays.stream(qtp.QUERY_TYPES).mapToLong(v -> groups.get(v).size()).toArray();

        double chi = cst.chiSquare(expceted, obs);
        chi = cqd.cumulativeProbability(chi);

        Cost dtCost = dt.getCostForQueries(smp, sla);
        Cost optCost = astar.getCostForQueries(smp, sla);

        System.out.println(chi + "\t" + dtCost.getTotalCost() + "\t" + optCost.getTotalCost());
    }

}

From source file:io.github.jeddict.jcode.util.PersistenceUtil.java

public static void addProperty(PersistenceUnit punit, String key, String value) {
    Properties properties = punit.getProperties();
    if (properties == null) {
        properties = punit.newProperties();
        punit.setProperties(properties);
    }//from  w w  w .  j a va2 s  .c o m
    Property property = properties.newProperty();
    property.setName(key);
    property.setValue(value);

    Property existing = getProperty(properties.getProperty2(), key);

    if (existing != null) {
        existing.setValue(property.getValue());
    } else {
        properties.addProperty2(property);
    }
    System.out.println(Arrays.stream(punit.getProperties().getProperty2())
            .map(p -> p.getName() + '.' + p.getValue()).collect(Collectors.joining("|", "<", ">")));
}

From source file:com.github.ambry.commons.BlobIdTest.java

/**
 * Running for both {@link BlobId#BLOB_ID_V1} and {@link BlobId#BLOB_ID_V2}
 * @return an array with both {@link BlobId#BLOB_ID_V1} and {@link BlobId#BLOB_ID_V2}
 *//* www  .  j  a  v a 2s.  co  m*/
@Parameterized.Parameters
public static List<Object[]> data() {
    return Arrays.stream(BlobId.getAllValidVersions()).map(version -> new Object[] { version })
            .collect(Collectors.toList());
}

From source file:com.netflix.spinnaker.halyard.deploy.spinnaker.v1.SpinnakerRuntimeSettings.java

@JsonIgnore
public Map<SpinnakerService.Type, ServiceSettings> getAllServiceSettings() {
    return Arrays.stream(Services.class.getDeclaredFields()).reduce(new HashMap<>(), (map, field) -> {
        if (!ServiceSettings.class.isAssignableFrom(field.getType())) {
            return map;
        }//from w  w w .j  ava 2 s.  c  om

        SpinnakerService.Type type = SpinnakerService.Type.fromCanonicalName(field.getName());
        ServiceSettings settings;
        try {
            settings = (ServiceSettings) field.get(services);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }

        if (settings != null) {
            map.put(type, settings);
        }

        return map;
    }, (map1, map2) -> {
        map1.putAll(map2);
        return map1;
    });
}

From source file:io.github.jeddict.orm.generator.compiler.constraints.EmailSnippet.java

public EmailSnippet(Email email) {
    super(email);
    if (isNotBlank(constraint.getFlags())) {
        flags = Arrays.stream(constraint.getFlags().split(",")).map(flag -> Flag.fromValue(flag.trim()))
                .filter(flag -> flag != null).collect(toList());
    }//ww  w . j  av  a 2  s  .  c o  m
}