Example usage for java.util Objects requireNonNull

Introduction

In this page you can find the example usage for java.util Objects requireNonNull.

Prototype

public static <T> T requireNonNull(T obj, Supplier<String> messageSupplier)

Source Link

Document

Checks that the specified object reference is not null and throws a customized NullPointerException if it is.

Usage

From source file:org.keycloak.connections.httpclient.ProxyMappings.java

/**
 * @param hostname//from  w  w w  .  j  av  a2  s . co  m
 * @return the {@link HttpHost} proxy associated with the first matching hostname {@link Pattern}
 * or {@literal null} if none matches.
 */
public HttpHost getProxyFor(String hostname) {

    Objects.requireNonNull(hostname, "hostname");

    return entries.stream() //
            .filter(e -> e.matches(hostname)) //
            .findFirst() //
            .map(ProxyMapping::getProxy) //
            .orElse(null);
}

From source file:com.github.yongchristophertang.engine.web.request.HttpRequestBuilders.java

/**
 * Package private constructor. To get an instance, use static factory
 * methods in {@link TestRequestBuilders}.
 * <p/>/*  w w w  . j  a va2s  .  c om*/
 * <p>Although this class cannot be extended, additional ways to initialize
 * the {@code MockHttpServletRequest} can be plugged in via
 * {@link #with(RequestPostProcessor)}.
 *
 * @param urlTemplate  a URL template; the resulting URL will be encoded
 * @param urlVariables zero or more URL variables
 */
HttpRequestBuilders(HttpRequest httpRequest, String urlTemplate, String description, Object... urlVariables) {

    Objects.requireNonNull(urlTemplate, "uriTemplate is required");
    Objects.requireNonNull(httpRequest, "httpRequest is required");

    this.description = description;
    this.httpRequest = httpRequest;
    expandURLTemplate(urlTemplate, urlVariables);
    this.uriTemplate = urlTemplate;
}

From source file:com.conwet.silbops.api.impl.XJSPPubEndpoint.java

@Override
public void setContext(Context context) {

    this.context = Objects.requireNonNull(context, "Context is null");
}

From source file:com.netflix.nicobar.core.utils.ClassPathUtils.java

/**
 * Find the root path for the given class. If the class is found in a Jar file, then the
 * result will be an absolute path to the jar file. If the resource is found in a directory,
 * then the result will be the parent path of the given resource.
 *
 * @param clazz class to search for/*from  w  w  w  . ja v  a 2  s  .  c om*/
 * @return absolute path of the root of the resource.
 */
@Nullable
public static Path findRootPathForClass(Class<?> clazz) {
    Objects.requireNonNull(clazz, "resourceName");
    String resourceName = classToResourceName(clazz);
    return findRootPathForResource(resourceName, clazz.getClassLoader());
}

From source file:com.seyren.core.util.velocity.AbstractHelper.java

protected String getTemplateAsString(String fileName) {
    Objects.requireNonNull(fileName, "filename is null");

    try {/*from w ww . j av a2  s  .c o  m*/
        // Handle the template filename as either a class path resource or an absolute path to the filesystem.
        InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName);
        if (inputStream == null) {
            inputStream = new FileInputStream(fileName);
        }
        return IOUtils.toString(inputStream);
    } catch (IOException e) {
        throw new RuntimeException("Template file could not be found on classpath at " + fileName);
    }
}

From source file:ch.puzzle.itc.mobiliar.business.auditview.control.AuditService.java

@SuppressWarnings("unchecked")
public <T> Object getDeletedEntity(T entity, Integer id) {
    Objects.requireNonNull(entity, "Entity can not be null");
    Objects.requireNonNull(id, "Id can not be null");

    AuditReader reader = AuditReaderFactory.get(entityManager);

    if (reader.isEntityClassAudited(entity.getClass())) {
        AuditQuery query = reader.createQuery().forRevisionsOfEntity(entity.getClass(), false, true)
                .add(AuditEntity.id().eq(id)).add(AuditEntity.revisionType().eq(DEL));

        List<Object[]> resultList = query.getResultList();
        if (!resultList.isEmpty()) {
            return resultList.get(0)[0];
        }/*from ww w.j  a va 2s . co m*/
    }
    return null;
}

From source file:com.github.jinahya.sql.database.metadata.bind.MetadataContext.java

/**
 * Creates a new instance with given {@code DatabaseMetaData}.
 *
 * @param database the {@code DatabaseMetaData} instance to hold.
 *//*from  w w  w .  j av  a2 s  .c  o  m*/
public MetadataContext(final DatabaseMetaData database) {

    super();

    this.database = Objects.requireNonNull(database, "null database");
}

From source file:de.speexx.jira.jan.command.issuequery.CsvCreator.java

void checkParameter(final IssueData issueData, final List<FieldName> historyFieldNames,
        final List<FieldNamePath> currentFieldNames, final TemporalChangeOutput temporalOutput,
        final AtomicBoolean header) {
    Objects.requireNonNull(issueData, "issueData is null");
    Objects.requireNonNull(historyFieldNames, "historyFieldNames is null");
    Objects.requireNonNull(currentFieldNames, "currentFieldNames is null");
    Objects.requireNonNull(temporalOutput, "temporalOutput is null");
    Objects.requireNonNull(header, "header is null");
}

From source file:com.navercorp.pinpoint.web.service.map.FilteredMapBuilder.java

public FilteredMapBuilder(ApplicationFactory applicationFactory, ServiceTypeRegistryService registry,
        Range range, int version) {
    this.applicationFactory = Objects.requireNonNull(applicationFactory, "applicationFactory must not be null");
    this.registry = Objects.requireNonNull(registry, "registry must not be null");
    Objects.requireNonNull(range, "range must not be null");

    this.version = version;

    this.timeWindow = new TimeWindow(range, TimeWindowDownSampler.SAMPLER);
    this.linkDataDuplexMap = new LinkDataDuplexMap();
    this.responseHistogramsBuilder = new ResponseHistograms.Builder(range);
    this.dotExtractor = new DotExtractor();
}

From source file:no.digipost.api.useragreements.client.DigipostUserAgreementsClient.java

public IdentificationResult identifyUser(final SenderId senderId, final UserId userId,
        final String requestTrackingId) {
    Objects.requireNonNull(senderId, "senderId cannot be null");
    Objects.requireNonNull(userId, "userId cannot be null");
    return apiService.identifyUser(senderId, userId, requestTrackingId,
            singleJaxbEntityHandler(IdentificationResult.class));
}