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

Introduction

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

Prototype

public static boolean isNullOrEmpty(@Nullable String string)

Source Link

Document

Returns true if the given string is null or is the empty string.

Usage

From source file:org.gbif.api.vocabulary.NamePart.java

/**
 * Case insensitive lookup of a NamePart by its name that does not throw an exception but returns null
 * for a not found NamePart.// ww  w  .  j  a  v  a  2  s .  c  o  m
 *
 * @param namePart case insensitive name of name part
 *
 * @return the matching NamePart or null
 */
public static NamePart fromString(String namePart) {
    if (!Strings.isNullOrEmpty(namePart)) {
        try {
            return valueOf(namePart.toUpperCase().trim());
        } catch (IllegalArgumentException e) {
            // swallow
        }
    }
    return null;
}

From source file:org.retrostore.util.NumUtil.java

/**
 * Parses a long value from a string./*w  w w  .  j  a  v a 2s . c  om*/
 *
 * @param longStr the long value as a string.
 * @return The long value, or absent if the string could not be parsed.
 */
public static Optional<Long> parseLong(String longStr) {
    if (Strings.isNullOrEmpty(longStr)) {
        return Optional.empty();
    }
    try {
        return Optional.of(Long.parseLong(longStr));
    } catch (NumberFormatException ex) {
        LOG.log(Level.SEVERE, "Cannot parse integer", ex);
        return Optional.empty();
    }
}

From source file:org.apache.sqoop.connector.kite.configuration.ConfigUtil.java

/**
 * Returns a dataset uri, including the filesystem location part, if it is
 * provided separated,//  w  w w. j  a va 2 s.  c o  m
 */
public static String buildDatasetUri(String authority, String uri) {
    if (!Strings.isNullOrEmpty(authority) && !uri.contains("://")) {
        URIBuilder builder = new URIBuilder(uri);

        String[] parts = authority.split(":");
        if (parts.length > 0) {
            builder.with("auth:host", parts[0]);
        }
        if (parts.length > 1) {
            builder.with("auth:port", parts[1]);
        }

        return builder.build().toString().replaceFirst("view:", "dataset:");
    }

    return uri;
}

From source file:com.palantir.lock.AtlasCellLockDescriptor.java

/** Returns a {@code LockDescriptor} instance for the given table, row, and column. */
public static LockDescriptor of(String tableName, byte[] rowName, byte[] colName) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(tableName));
    Preconditions.checkNotNull(rowName);
    Preconditions.checkNotNull(colName);
    byte[] tableBytes = tableName.getBytes();
    byte[] bytes = new byte[tableBytes.length + 1 + rowName.length + 1 + colName.length];
    System.arraycopy(tableBytes, 0, bytes, 0, tableBytes.length);
    System.arraycopy(rowName, 0, bytes, tableBytes.length + 1, rowName.length);
    System.arraycopy(colName, 0, bytes, tableBytes.length + 1 + rowName.length + 1, colName.length);
    return new LockDescriptor(bytes);
}

From source file:com.test.config.ConfigurationFactory.java

/**
 * Loads configuration object by file/*from  www  .ja v a2s .c o  m*/
 *
 * @return Returns configuration objects
 */
public static Config load() {
    if (Strings.isNullOrEmpty(System.getProperty("config"))) {
        throw new RuntimeException("Configuration file path is empty. "
                + "Please specify the file path with using -Dconfig=[PATH]");
    }

    com.typesafe.config.Config config = ConfigFactory.parseFile(new File(System.getProperty("config")));

    return ConfigBeanFactory.create(config, Config.class);
}

From source file:com.demonwav.mcdev.platform.MinecraftModuleType.java

public static void addOption(@NotNull Module module, @NotNull String option) {
    String currentOption = module.getOptionValue(OPTION);
    if (Strings.isNullOrEmpty(currentOption)) {
        currentOption = option;//from   w  w w  . j  av a  2s  . co m
    } else {
        if (!currentOption.contains(option)) {
            currentOption += "," + option;
        }
    }
    module.setOption(OPTION, currentOption);
    final MinecraftModule minecraftModule = MinecraftModule.getInstance(module);
    if (minecraftModule != null) {
        final PlatformType[] types = cleanOption(module);
        minecraftModule.updateModules(types);
    }
}

From source file:net.mad.ads.db.enums.ExpirationResolution.java

public static ExpirationResolution forName(String name) {
    if (Strings.isNullOrEmpty(name)) {
        return NONE;
    }//  w w  w .  j a v a  2s.  c  om

    for (ExpirationResolution res : values()) {
        if (res.getName().equalsIgnoreCase(name)) {
            return res;
        }
    }

    return NONE;
}

From source file:preparing.DataReader.java

public static String readLicense(String filePath) {
    StringBuilder res = new StringBuilder();

    try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
        while (reader.ready()) {
            res.append(reader.readLine() + " ");
        }//from w  w  w. j a  va 2s . co  m
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }

    if (Strings.isNullOrEmpty(res.toString()) || !res.toString().matches("^.*[A-Za-z]+.*$")) {
        return null;
    }
    return res.toString();
}

From source file:ru.runa.wfe.var.format.FormatCommons.java

private static VariableFormat create(String className, UserType userType) {
    if (userType != null) {
        return new UserTypeFormat(userType);
    }//from  www.j  a v a2  s .c om
    if (Strings.isNullOrEmpty(className)) {
        className = StringFormat.class.getName();
    }
    VariableFormat format = ClassLoaderUtil.instantiate(className);
    if (format instanceof VariableFormatContainer) {
        // see
        // ru.runa.wfe.var.VariableDefinition.initComponentUserTypes(IUserTypeLoader)
    }
    return format;
}

From source file:com.palantir.lock.StringLockDescriptor.java

/** Returns a {@code LockDescriptor} instance for the given lock ID. */
public static LockDescriptor of(String lockId) {
    Preconditions.checkNotNull(lockId);/*from ww w  .  jav a  2s. c o  m*/
    Preconditions.checkArgument(!Strings.isNullOrEmpty(lockId));
    return new LockDescriptor(lockId.getBytes(Charsets.UTF_8));
}