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)

Source Link

Document

Ensures that an object reference passed as a parameter to the calling method is not null.

Usage

From source file:org.apache.james.backends.cassandra.init.CassandraNodeIpAndPort.java

public static CassandraNodeIpAndPort parseConfString(String ipAndPort) {
    Preconditions.checkNotNull(ipAndPort);
    Preconditions.checkArgument(!ipAndPort.isEmpty());

    List<String> parts = Splitter.on(':').trimResults().splitToList(ipAndPort);

    if (parts.size() < 1 || parts.size() > 2) {
        throw new IllegalArgumentException(ipAndPort + " is not a valid cassandra node");
    }//from w  ww .j  av  a2s .  c  om

    String ip = parts.get(0);
    int port = getPortFromConfPart(parts);

    return new CassandraNodeIpAndPort(ip, port);
}

From source file:edu.zipcloud.cloudstreetmarket.core.util.TransactionUtil.java

public static BigDecimal getPriceInUserCurrency(Quote quote, UserActivityType transactionType, int quantity,
        User user, @Nullable CurrencyExchange currencyExchange) {
    Preconditions.checkNotNull(transactionType);
    Preconditions.checkNotNull(user);//from  w ww  . j  ava 2  s. c  o  m
    Preconditions.checkNotNull(quote);
    Preconditions.checkArgument(quote instanceof StockQuote, "Quote type not supported yet");
    Preconditions.checkArgument(
            transactionType.equals(UserActivityType.BUY) || transactionType.equals(UserActivityType.SELL));

    StockQuote stockQuote = (StockQuote) quote;

    BigDecimal priceInUserCurrency;
    if (user.getCurrency().equals(stockQuote.getSupportedCurrency())) {
        priceInUserCurrency = BigDecimal.valueOf(
                (transactionType.equals(transactionType.BUY) ? stockQuote.getBid() : stockQuote.getAsk())
                        * quantity);
    } else {
        Preconditions.checkNotNull(currencyExchange);
        Preconditions.checkArgument(currencyExchange.getDailyLatestValue() != null);
        Preconditions.checkArgument(currencyExchange.getDailyLatestValue().doubleValue() > 0);

        priceInUserCurrency = currencyExchange.getDailyLatestValue().multiply(BigDecimal.valueOf(
                (transactionType.equals(transactionType.BUY) ? stockQuote.getBid() : stockQuote.getAsk())
                        * quantity));
    }
    return priceInUserCurrency;
}

From source file:org.apache.james.transport.mailets.remoteDelivery.InternetAddressConverter.java

public static InternetAddress[] convert(Collection<MailAddress> recipients) {
    Preconditions.checkNotNull(recipients);
    return FluentIterable.from(recipients).transform(new Function<MailAddress, InternetAddress>() {
        @Override//from   w w  w  .j  ava2  s. c o m
        public InternetAddress apply(MailAddress input) {
            return input.toInternetAddress();
        }
    }).toArray(InternetAddress.class);
}

From source file:com.google.cloud.dataflow.examples.complete.game.injector.InjectorUtils.java

/**
 * Builds a new Pubsub client and returns it.
 *///from   ww  w.ja  v a  2s.  co m
public static Pubsub getClient(final HttpTransport httpTransport, final JsonFactory jsonFactory)
        throws IOException {
    Preconditions.checkNotNull(httpTransport);
    Preconditions.checkNotNull(jsonFactory);
    GoogleCredential credential = GoogleCredential.getApplicationDefault(httpTransport, jsonFactory);
    if (credential.createScopedRequired()) {
        credential = credential.createScoped(PubsubScopes.all());
    }
    if (credential.getClientAuthentication() != null) {
        System.out.println("\n***Warning! You are not using service account credentials to "
                + "authenticate.\nYou need to use service account credentials for this example,"
                + "\nsince user-level credentials do not have enough pubsub quota,\nand so you will run "
                + "out of PubSub quota very quickly.\nSee "
                + "https://developers.google.com/identity/protocols/application-default-credentials.");
        System.exit(1);
    }
    HttpRequestInitializer initializer = new RetryHttpInitializerWrapper(credential);
    return new Pubsub.Builder(httpTransport, jsonFactory, initializer).setApplicationName(APP_NAME).build();
}

From source file:com.davidbracewell.ml.classification.linear.LibLinearModel.java

public static Feature[] toFeature(Instance vector) {
    int[] keys = VectorMath.nonZeroIndexes(Preconditions.checkNotNull(vector));
    Feature[] feature = new Feature[keys.length];
    for (int i = 0; i < keys.length; i++) {
        int fi = keys[i];
        feature[i] = new FeatureNode(fi + 1, vector.get(fi));
    }/* w w  w . j  av a2  s .co  m*/
    return feature;
}

From source file:cz.cuni.mff.ms.brodecva.botnicek.ide.check.mixedpattern.model.builder.DefaultMixedPatternBuilderFactory.java

/**
 * Vytvo tovrnu./*  ww  w.  j a  va2 s.  co m*/
 * 
 * @param checker
 *            validtor
 * @return tovrna
 */
public static DefaultMixedPatternBuilderFactory create(final MixedPatternChecker checker) {
    Preconditions.checkNotNull(checker);

    return new DefaultMixedPatternBuilderFactory(checker);
}