Example usage for com.google.common.base Strings nullToEmpty

Introduction

In this page you can find the example usage for com.google.common.base Strings nullToEmpty.

Prototype

public static String nullToEmpty(@Nullable String string)

Source Link

Document

Returns the given string if it is non-null; the empty string otherwise.

Usage

From source file:org.trnltk.model.letter.TurkishSequence.java

/**
 * Create a {@link TurkishSequence} instance from a string.
 * <p/>//from  w  w  w .  j a v  a  2s  .c  o  m
 * Chars are one by one converted to {@link TurkishChar}s, thus if you are going to clone a {@link TurkishSequence}
 * it is advised to use the method {@link TurkishSequence#TurkishSequence(TurkishSequence)}
 *
 * @param underlyingString String to convert to {@link TurkishSequence}
 */
public TurkishSequence(String underlyingString) {
    this.underlyingString = Strings.nullToEmpty(underlyingString);
    this.count = underlyingString.length();
    this.chars = new TurkishChar[this.count];
    for (int i = 0; i < underlyingString.length(); i++) {
        char c = underlyingString.charAt(i);
        TurkishChar turkishChar = TurkishAlphabet.getChar(c);
        this.chars[i] = turkishChar;
        if (turkishChar.getLetter().isVowel()) {
            if (this.firstVowel == null)
                this.firstVowel = turkishChar;
            this.lastVowel = turkishChar;
        }
    }
}

From source file:org.attribyte.api.pubsub.impl.server.util.SubscriptionRequestRecord.java

public SubscriptionRequestRecord(final Request request, final Response response, final Subscriber subscriber)
        throws IOException {
    this.sourceIP = HTTPUtil.getClientIP(request);
    this.topicURL = request.getParameterValue(ProtocolConstants.SUBSCRIPTION_TOPIC_PARAMETER);
    this.callbackURL = request.getParameterValue(ProtocolConstants.SUBSCRIPTION_CALLBACK_PARAMETER);
    this.callbackAuthScheme = request.getParameterValue(ProtocolConstants.SUBSCRIPTION_CALLBACK_AUTH_SCHEME);
    this.callbackAuthSupplied = !Strings
            .nullToEmpty(request.getParameterValue(ProtocolConstants.SUBSCRIPTION_CALLBACK_AUTH)).trim()
            .isEmpty();// w  ww  .j av a 2 s.  c o m
    this.responseCode = response.getStatusCode();
    this.responseBody = response.getBody() != null ? response.getBody().toStringUtf8() : null;
    this.subscriberId = subscriber != null ? subscriber.getId() : 0L;
}

From source file:com.facebook.presto.exception.PartitionAlreadyExistsException.java

/**
 * Constructor./*from   w  w  w.j a  v a  2  s  .  c o  m*/
 * @param tableName table name
 * @param partitionId partition name
 * @param cause error cause
 */
public PartitionAlreadyExistsException(final SchemaTableName tableName, final String partitionId,
        final Throwable cause) {
    super(StandardErrorCode.ALREADY_EXISTS, String.format("Partition '%s' already exists for table '%s'",
            Strings.nullToEmpty(partitionId), tableName), cause);
}

From source file:org.gbif.ipt.validation.BaseValidator.java

protected boolean isValidEmail(String email) {
    if (email != null) {
        try {/* w  w  w .j a v a 2 s.co m*/
            InternetAddress internetAddress = new InternetAddress(email);
            internetAddress.validate();
            return true;
        } catch (javax.mail.internet.AddressException e) {
            LOG.debug("Email address was invalid: " + Strings.nullToEmpty(email));
        }
    }
    return false;
}

From source file:org.zanata.magpie.annotation.EnvVariableProducer.java

@Produces
@EnvVariable("")/* w ww.  ja  va  2 s. c o  m*/
String findProperty(InjectionPoint ip) {
    EnvVariable annotation = ip.getAnnotated().getAnnotation(EnvVariable.class);

    String name = annotation.value();
    String found = getEnv(name);
    if (found == null) {
        log.warn("Environment variable '{}' is not defined!", name);
    }
    return Strings.nullToEmpty(found);
}

From source file:org.attribyte.relay.RDBSupplier.java

/**
 * Called by implementation to initialize pools after construction.
 * @param props The properties.// ww w. ja v  a2  s .  c  o  m
 * @param logger The logger.
 * @throws Exception on initialization error.
 */
protected void initPools(final Properties props, final Logger logger) throws Exception {
    InitUtil dbProps = new InitUtil("rdb.", props);
    String credentialsFilename = Strings.nullToEmpty(dbProps.getProperty("credentialsFile")).trim();
    final PasswordSource passwordSource;
    if (!credentialsFilename.isEmpty()) {
        File credentialsFile = new File(credentialsFilename);
        if (!credentialsFile.exists()) {
            throw new Exception(
                    String.format("The 'rdb.credentialsFile', '%s' does not exist", credentialsFilename));
        }

        if (!credentialsFile.canRead()) {
            throw new Exception(
                    String.format("The 'rdb.credentialsFile', '%s' can't be read", credentialsFilename));
        }

        Properties credentialsProps = new Properties();
        credentialsProps.load(new ByteArrayInputStream(Files.toByteArray(credentialsFile)));
        passwordSource = new PropertiesPasswordSource(credentialsProps);
    } else {
        passwordSource = null;
    }

    List<ConnectionPool.Initializer> initializers = ConnectionPool.Initializer
            .fromProperties(dbProps.getProperties(), passwordSource, logger);
    if (initializers.size() == 0) {
        throw new Exception("No connection pool found");
    }

    String defaultPoolName = Strings.nullToEmpty(dbProps.getProperty("defaultPoolName")).trim();

    if (defaultPoolName.isEmpty()) {
        ImmutableMap.Builder<String, ConnectionPool> connectionPools = ImmutableMap.builder();
        this.defaultConnectionPool = initializers.get(0).createPool();
        connectionPools.put(this.defaultConnectionPool.getName(), this.defaultConnectionPool);
        for (int i = 1; i < initializers.size(); i++) {
            ConnectionPool curr = initializers.get(i).createPool();
            connectionPools.put(curr.getName(), curr);
        }
        this.connectionPools = connectionPools.build();
    } else {
        ImmutableMap.Builder<String, ConnectionPool> connectionPools = ImmutableMap.builder();
        for (ConnectionPool.Initializer init : initializers) {
            ConnectionPool pool = init.createPool();
            connectionPools.put(pool.getName(), pool);
        }
        this.connectionPools = connectionPools.build();
        this.defaultConnectionPool = this.connectionPools.get(defaultPoolName);
        if (this.defaultConnectionPool == null) {
            throw new Exception(
                    String.format("The default connection pool, '%s', was not configured", defaultPoolName));
        }
    }
}

From source file:com.google.api.explorer.client.base.Config.java

/** Get the API key to use for requests from this application. */
public static String getApiKey() {
    return Strings.nullToEmpty(apiKey);
}

From source file:org.apache.beam.sdk.io.aws.s3.S3ResourceId.java

static S3ResourceId fromUri(String uri) {
    Matcher m = S3_URI.matcher(uri);
    checkArgument(m.matches(), "Invalid S3 URI: [%s]", uri);
    checkArgument(m.group("SCHEME").equalsIgnoreCase(SCHEME), "Invalid S3 URI scheme: [%s]", uri);
    String bucket = m.group("BUCKET");
    String key = Strings.nullToEmpty(m.group("KEY"));
    if (!key.startsWith("/")) {
        key = "/" + key;
    }//  w  w  w .  j a va2s  .c om
    return fromComponents(bucket, key);
}

From source file:com.eucalyptus.auth.policy.ern.ResourceNameSupport.java

@Override
public String toString() {
    return new StringBuilder().append(ARN_PREFIX).append(getService()).append(':')
            .append(Strings.nullToEmpty(getRegion())).append(':').append(Strings.nullToEmpty(getAccount()))
            .append(':').append(getType()).append('/').append(getResourceName()).toString();
}

From source file:io.macgyver.plugin.cloud.aws.scanner.AWSScannerService.java

@Override
public void run() {
    registy.getServiceDefinitions().values().forEach(it -> {
        try {//from w  w w . j av a 2 s .  com
            String type = Strings.nullToEmpty(it.getServiceType());
            if (type.toLowerCase().equals("aws")) {
                AWSServiceClient c = registy.get(it.getName());

                List<String> regionList = Splitter.on(",").omitEmptyStrings().trimResults()
                        .splitToList(Strings.nullToEmpty(it.getProperty("regions")));
                scan(c, regionList.toArray(new String[0]));
            }
        } catch (Exception e) {
            logger.warn("", e);
        }
    });
}