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.apache.james.mailbox.store.mail.model.AttachmentId.java

public static AttachmentId from(String id) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(id));
    return new AttachmentId(id);
}

From source file:com.streamsets.pipeline.stage.util.tls.TlsConfigBeanUpgradeUtil.java

public static void upgradeHttpSslConfigBeanToTlsConfigBean(List<Config> configs, String configPrefix) {
    final String newTrustStorePath = configPrefix + "tlsConfig.trustStoreFilePath";
    final String newKeyStorePath = configPrefix + "tlsConfig.keyStoreFilePath";

    UpgraderUtils.moveAllTo(configs, configPrefix + "sslConfig.trustStorePath", newTrustStorePath,
            configPrefix + "sslConfig.trustStorePassword", configPrefix + "tlsConfig.trustStorePassword",
            configPrefix + "sslConfig.keyStorePath", newKeyStorePath,
            configPrefix + "sslConfig.keyStorePassword", configPrefix + "tlsConfig.keyStorePassword");

    boolean hasKeyStore = false;
    boolean hasTrustStore = false;

    for (Config config : configs) {
        if (newKeyStorePath.equals(config.getName())) {
            hasKeyStore = !Strings.isNullOrEmpty((String) config.getValue());
        } else if (newTrustStorePath.equals(config.getName())) {
            hasTrustStore = !Strings.isNullOrEmpty((String) config.getValue());
        }/*from  w w  w.  ja  v a 2 s  .  c om*/
    }

    configs.add(new Config(configPrefix + "tlsConfig.tlsEnabled", hasTrustStore || hasKeyStore));
}

From source file:org.apache.isis.core.progmodel.facets.object.defaults.annotation.DefaultedFacetAnnotation.java

private static String providerName(final Class<?> annotatedClass, final IsisConfiguration configuration) {
    final Defaulted annotation = annotatedClass.getAnnotation(Defaulted.class);
    final String providerName = annotation.defaultsProviderName();
    if (!Strings.isNullOrEmpty(providerName)) {
        return providerName;
    }/*from www. j a  va  2  s. c  om*/
    return DefaultsProviderUtil.defaultsProviderNameFromConfiguration(annotatedClass, configuration);
}

From source file:org.haiku.haikudepotserver.multipage.markup.PlainTextContentTag.java

@Override
protected int doStartTagInternal() throws Exception {

    if (!Strings.isNullOrEmpty(value)) {

        pageContext.getOut().print(String.join("<br/>\n", Arrays.stream(value.split("[\n\r]"))
                .map(s -> HtmlEscapers.htmlEscaper().escape(s)).collect(Collectors.toList())));

    }//w  w w  .ja  v a  2  s  . c o  m

    return SKIP_BODY;
}

From source file:com.palantir.docker.compose.connection.Ports.java

public static Ports parseFromDockerComposePs(String psOutput, String dockerMachineIp) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(psOutput), "No container found");
    Matcher matcher = PORT_PATTERN.matcher(psOutput);
    List<DockerPort> ports = new ArrayList<>();
    while (matcher.find()) {
        String matchedIpAddress = matcher.group(IP_ADDRESS);
        String ip = matchedIpAddress.equals(NO_IP_ADDRESS) ? dockerMachineIp : matchedIpAddress;
        int externalPort = Integer.parseInt(matcher.group(EXTERNAL_PORT));
        int internalPort = Integer.parseInt(matcher.group(INTERNAL_PORT));

        ports.add(new DockerPort(ip, externalPort, internalPort));
    }/*w  ww .  j  a v  a  2s .c o  m*/
    return new Ports(ports);
}

From source file:com.cinchapi.concourse.util.Environments.java

/**
 * Ensure that we return the correct environment with
 * alphanumeric-char name for the specified {@code env}.
 * e.g. if {@code env} is null or empty then return the
 * {@link GlobalState#DEFAULT_ENVIRONMENT}.
 * /*from  w ww.  j a v  a2 s .  co  m*/
 * @param env
 * @return the environment name
 */
public static String sanitize(String env) {
    env = Strings.isNullOrEmpty(env) ? DEFAULT_ENVIRONMENT : env;
    Matcher matcher = SANITIZER.matcher(env);
    env = matcher.replaceAll(""); // ConcourseServer checks to make sure
                                  // sanitizing the default environment
                                  // won't turn it into an empty string
    return env;
}

From source file:uk.nhs.fhir.util.FhirServerProperties.java

public static Properties parseProperties(String propertiesFile) {
    if (Strings.isNullOrEmpty(propertiesFile)) {
        throw new IllegalArgumentException("Null properties File path");
    }/*from  ww  w.  java  2 s.com*/

    Properties properties = new Properties();

    //Load the property values into a local object from the property file.
    boolean absolute = (propertiesFile.startsWith("/")
            || (propertiesFile.length() > 1 && propertiesFile.charAt(1) == ':'));

    if (absolute) {
        try (FileInputStream in = new FileInputStream(new File(propertiesFile))) {
            properties.load(in);
        } catch (Exception ex) {
            throw new IllegalStateException("Error loading properties from file " + propertiesFile, ex);
        }
    } else {
        try (InputStream in = FhirServerProperties.class.getClassLoader().getResourceAsStream(propertiesFile)) {
            properties.load(in);
        } catch (Exception ex) {
            throw new IllegalStateException("Error loading properties from file " + propertiesFile, ex);
        }
    }

    return properties;
}

From source file:com.indeed.imhotep.sql.parser.Preprocessor.java

public static String applyAliases(String clause, Map<String, String> aliases) {
    if (Strings.isNullOrEmpty(clause)) {
        return clause;
    }//from  ww  w. ja  va2 s.  co m
    // tokenize while ignoring quoted strings
    final List<Token> tokens = tokenizer.parse(clause);

    // for each token, look up the NameExpression in a map and if found replace with the provided replacement expression
    for (int i = tokens.size() - 1; i >= 0; i--) {
        final Token token = tokens.get(i);
        final String tokenStr = tokenAsString(token);
        final String replacement = aliases.get(tokenStr);
        if (replacement != null) {
            // TODO: optimize?
            clause = clause.substring(0, token.index()) + replacement
                    + clause.substring(token.index() + token.length());
        }
    }

    return clause;
}

From source file:org.apache.isis.viewer.wicket.ui.util.CssClassAppender.java

/**
 * Adds CSS class to tag (providing that the class is non-null and non-empty).
 *//*from   w ww.j a v a 2 s .  c o  m*/
public static void appendCssClassTo(final ComponentTag tag, final String cssClass) {
    if (Strings.isNullOrEmpty(cssClass)) {
        return;
    }
    tag.append("class", cssClass, " ");
}

From source file:ezbake.common.io.ClasspathResources.java

public static URL getResource(String resource) {
    // no need to attempt to load
    if (Strings.isNullOrEmpty(resource)) {
        return null;
    }//from   w  ww  .  j av a 2 s . c o m

    // First we will do it from class loaders
    URL retVal = null;
    try {
        retVal = Resources.getResource(resource);
    } catch (IllegalArgumentException ignored) {
        // We are ignoring this so we can try to load from the runtime classes
    }

    retVal = ClasspathResources.class.getClass().getResource(resource);
    if (retVal == null) {
        /* Just in case the java.class and ClasspathResources are loaded from differrent class loader then
        java.lang.class */
        retVal = ClasspathResources.class.getResource(resource);
    }
    return retVal;
}