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:dk.dma.msiproxy.common.settings.Settings.java

/**
 * Returns the value associated with the setting.
 * If it does not exist, it is created/*from  w w w  . ja v a2s.  c om*/
 *
 * @param setting the source
 * @return the associated value
 */
public String get(Setting setting) {
    Objects.requireNonNull(setting, "Must specify valid setting");

    String result;

    // If a corresponding system property is set, it takes precedence
    result = System.getProperty(setting.getSettingName());

    // Check if it has been defined in the properties file
    if (result == null) {
        result = properties.getProperty(setting.getSettingName(), setting.defaultValue());
    }

    if (result != null && setting.substituteSystemProperties()) {
        for (Object key : System.getProperties().keySet()) {
            result = result.replaceAll("\\$\\{" + key + "\\}",
                    Matcher.quoteReplacement(System.getProperty("" + key)));
        }
    }

    return result;
}

From source file:alfio.model.result.Result.java

public <K> Result<K> flatMap(Function<T, Result<K>> mapper) {
    if (isSuccess()) {
        return Objects.requireNonNull(mapper.apply(data), "this method does not allow null values");
    }/*ww  w.j a v a2 s.c  o m*/
    return Result.error(this.errors);
}

From source file:com.github.horrorho.inflatabledonkey.chunk.engine.standard.StandardChunkEngine.java

public StandardChunkEngine(ChunkStore chunkStore) {
    this.chunkStore = Objects.requireNonNull(chunkStore, "chunkStore");
}

From source file:com.qwazr.compiler.JavaCompiler.java

static JavaCompiler newInstance(ExecutorService executorService, File javaSourceDirectory,
        File javaClassesDirectory, File... classPathDirectories) throws IOException, URISyntaxException {
    Objects.requireNonNull(javaSourceDirectory, "No source directory given (null)");
    Objects.requireNonNull(javaClassesDirectory, "No class directory given (null)");
    final FileSystem fs = FileSystems.getDefault();
    final List<URL> urlList = new ArrayList<URL>();
    urlList.add(javaClassesDirectory.toURI().toURL());
    final String classPath = buildClassPath(classPathDirectories, urlList);
    return new JavaCompiler(executorService, javaSourceDirectory, javaClassesDirectory, classPath, urlList);
}

From source file:com.fizzed.blaze.ssh.impl.JschSftpSession.java

public JschSftpSession(SshSession session, ChannelSftp channel) {
    Objects.requireNonNull(session, "session cannot be null");
    Objects.requireNonNull(channel, "channel cannot be null");
    this.session = session;
    this.channel = channel;
    // somewhat unorthodox but we want the current working directory
    this.pwd();/*from  w  w w.  j a v  a2s. c  o  m*/
}

From source file:com.stewel.dataflow.assocrules.AlgoAgrawalFaster94.java

public AlgoAgrawalFaster94(@Nonnull final ItemsetCandidateGenerator itemsetsCandidateGenerator,
        @Nonnull final ItemsetSupportCalculator itemsetSupportCalculator,
        @Nonnull final AssociationRuleWriter associationRuleWriter, @Nonnull final Itemsets patterns,
        final long databaseSize, final double minimumConfidence, final double minimumLift) {
    this.itemsetsCandidateGenerator = Objects.requireNonNull(itemsetsCandidateGenerator,
            "itemsetsCandidateGenerator");
    this.itemsetSupportCalculator = Objects.requireNonNull(itemsetSupportCalculator,
            "itemsetSupportCalculator");
    this.associationRuleWriter = Objects.requireNonNull(associationRuleWriter, "associationRuleWriter");
    this.patterns = Objects.requireNonNull(patterns, "patterns");
    this.databaseSize = databaseSize;
    this.minimumConfidence = minimumConfidence;
    this.minimumLift = minimumLift;
    itemsetSupportCalculator.init(patterns);
}

From source file:io.lavagna.web.security.SecurityConfiguration.java

List<UrlMatcher> buildMatcherList() {
    List<UrlMatcher> r = new ArrayList<>();

    if (!loginUrlDisabled) {
        Objects.requireNonNull(loginUrlMatcher, "login urls must be configured or disabled");
        Objects.requireNonNull(logoutUrlMatcher, "logout urls must be configured or disabled");
        Objects.requireNonNull(lockUrlMatcher, "lock urls must be configured or disabled");
        Objects.requireNonNull(lockPageUrlMatcher, "lock page urls must be configured or disabled");
        Objects.requireNonNull(sessionHandler, "sessionHandler must be defined or login url must be disabled");
        r.add(loginUrlMatcher);//ww w. j a  va  2s.c  om
        r.add(logoutUrlMatcher);

        r.add(lockUrlMatcher);
        r.add(lockPageUrlMatcher);
    }
    r.addAll(urlMatchers);
    return r;
}

From source file:eu.ggnet.dwoss.receipt.UiUnitSupport.java

public UiUnitSupport(UnitProcessor unitProcessor) {
    this.unitProcessor = Objects.requireNonNull(unitProcessor,
            UnitProcessor.class.getSimpleName() + " must not be null");
}

From source file:com.linkedin.pinot.queries.TestHelper.java

TestHelper(@Nonnull String tableName, @Nullable PropertiesConfiguration serverConf) throws IOException {
    this.tableName = Objects.requireNonNull(tableName, "Table name should not be null");
    if (serverConf != null) {
        this.serverConf = serverConf;
    } else {// w w  w  .  ja  v a 2s .c o m
        this.serverConf = new TestingServerPropertiesBuilder(tableName).build();
    }
    this.serverConf.setDelimiterParsingDisabled(false);

    serverMetrics = new ServerMetrics(new MetricsRegistry());
    TableDataManagerProvider.setServerMetrics(serverMetrics);
    instanceDataManager = FileBasedInstanceDataManager.getInstanceDataManager();
    queryExecutor = new ServerQueryExecutorV1Impl(false);
}

From source file:it.reply.orchestrator.dto.deployment.CredentialsAwareSlaPlacementPolicy.java

/**
 * Set the username from an {@link AbstractPropertyValue}.
 * //from  w ww  .  j  a va  2  s. co  m
 * @param username
 *          the username
 */
public void setUsername(AbstractPropertyValue username) {
    Objects.requireNonNull(username, "username must not be null");
    Assert.isInstanceOf(ScalarPropertyValue.class, username, "username must be a scalar value");
    this.username = ((ScalarPropertyValue) username).getValue();
}