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:com.github.luluvise.droid_utils.logging.LogUtils.java

/**
 * Logs a message in LogCat, only if application debugging is active.  Logcat has a message
 * length limitation of ~4000 chars, so if the logMessage is > 4000 chars, recursively print
 * 4000 characters of the logMessage until all chars are logged.
 *
 * @param logLevel//from www .  ja  v a  2s. c  om
 *            The log level to use: must be one of the level constants
 *            provided by the {@link Log} class.
 * @param logTag
 * @param logMessage
 */
public static void log(int logLevel, String logTag, String logMessage) {

    if (!Strings.isNullOrEmpty(logMessage)) {
        if (logMessage.length() > 4000) {
            logHelper(logLevel, logTag, logMessage.substring(0, 4000));
            log(logLevel, logTag, logMessage.substring(4000));
        } else {
            logHelper(logLevel, logTag, logMessage);
        }
    }

}

From source file:de.cbb.mplayer.trees.filter.TuneFilterByStringPrediate.java

@Override
public boolean test(Object t) {
    TreeItemValue item = (TreeItemValue) t;
    if (Strings.isNullOrEmpty(input[0]))
        return true;
    String value = input[0].toLowerCase();
    if (item.getTune() == null) {
        return value.equals(item.getTitle().toLowerCase());
    } else {/*ww  w.j a va 2s  .c o m*/
        if (value.contains(":")) {
            String fieldname = value.substring(0, value.indexOf(":"));
            value = value.substring(value.indexOf(":") + 1);
            switch (fieldname.toLowerCase()) {
            case "title":
                return item.getTune().getTitle().toLowerCase().contains(value);
            case "album":
                return item.getTune().getAlbum().toLowerCase().contains(value);
            case "artist":
                return item.getTune().getArtist().toLowerCase().contains(value);
            case "filename":
                return item.getTune().getFilename().toLowerCase().contains(value);
            case "lyricstext":
                return item.getTune().getLyricsText().toLowerCase().contains(value);
            case "path":
                return item.getTune().getPath().toLowerCase().contains(value);
            default:
                break;
            }
        }
    }
    return containedInAnyField(item, value);

}

From source file:org.apache.isis.core.metamodel.facets.object.encodeable.annotcfg.EncodableFacetAnnotation.java

private static String encoderDecoderName(final Class<?> annotatedClass, final IsisConfiguration configuration) {
    final Encodable annotation = annotatedClass.getAnnotation(Encodable.class);
    final String encoderDecoderName = annotation.encoderDecoderName();
    if (!Strings.isNullOrEmpty(encoderDecoderName)) {
        return encoderDecoderName;
    }/*from ww  w. j a v a  2s  .c  o m*/
    return EncoderDecoderUtil.encoderDecoderNameFromConfiguration(annotatedClass, configuration);
}

From source file:com.google.apps.easyconnect.easyrp.client.basic.util.IdpUtils.java

/**
 * Checks if a email is valid.//  www .  jav  a 2 s.  com
 * 
 * @param email the email address to be checked
 * @return ture for valid, false otherwise
 */
public static boolean isValidEmail(String email) {
    if (Strings.isNullOrEmpty(email)) {
        return false;
    }
    return email.matches(EMAIL_REGEX);
}

From source file:tech.beshu.ror.acl.blocks.rules.impl.XForwardedForSyncRule.java

private static String getXForwardedForHeader(Map<String, String> headers) {
    String header = headers.get("X-Forwarded-For");
    if (!Strings.isNullOrEmpty(header)) {
        String[] parts = header.split(",");
        if (!Strings.isNullOrEmpty(parts[0])) {
            return parts[0].trim();
        }/*  www. j  a v a 2  s  .  c  o  m*/
    }
    return null;
}

From source file:org.haiku.haikudepotserver.dataobjects.Architecture.java

public static Optional<Architecture> tryGetByCode(ObjectContext context, final String code) {
    Preconditions.checkNotNull(context, "the context must be provided");
    Preconditions.checkState(!Strings.isNullOrEmpty(code));
    return getAll(context).stream().filter(a -> a.getCode().equals(code)).collect(SingleCollector.optional());
}

From source file:com.gsr.myschool.server.repos.spec.UserSpec.java

public static Specification<User> lastnameLike(final String name) {
    return new Specification<User>() {
        @Override//from w  w w  . j a va  2 s.c om
        public Predicate toPredicate(Root<User> userRoot, CriteriaQuery<?> query, CriteriaBuilder cb) {
            String likePattern = Strings.isNullOrEmpty(name) ? "%" : "%" + name + "%";
            return cb.like(userRoot.<String>get("lastName"), likePattern);
        }
    };
}

From source file:com.google.devtools.cyclefinder.TypeCollector.java

public static String getNameForType(ITypeBinding type) {
    String name = renamings.get(type);
    if (name != null) {
        return name;
    }// w w  w .ja  v a2 s. co  m
    name = type.getName();
    if (!Strings.isNullOrEmpty(name)) {
        return name;
    }
    return type.getKey();
}

From source file:de.cbb.mplayer.trees.filter.TuneFilterByInputPrediate.java

@Override
public boolean test(Object t) {
    TreeItemValue item = (TreeItemValue) t;
    if (Strings.isNullOrEmpty(input.getText()))
        return true;
    String value = input.getText().toLowerCase();
    if (item.getTune() == null) {
        return value.equals(item.getTitle().toLowerCase());
    } else {//ww w. j  a  v  a  2 s .  com
        if (value.contains(":")) {
            String fieldname = value.substring(0, value.indexOf(":"));
            value = value.substring(value.indexOf(":") + 1);
            switch (fieldname.toLowerCase()) {
            case "title":
                return item.getTune().getTitle().toLowerCase().contains(value);
            case "album":
                return item.getTune().getAlbum().toLowerCase().contains(value);
            case "artist":
                return item.getTune().getArtist().toLowerCase().contains(value);
            case "filename":
                return item.getTune().getFilename().toLowerCase().contains(value);
            case "lyricstext":
                return item.getTune().getLyricsText().toLowerCase().contains(value);
            case "path":
                return item.getTune().getPath().toLowerCase().contains(value);
            default:
                break;
            }
        }
    }
    return containedInAnyField(item, value);

}

From source file:org.apache.isis.core.progmodel.facets.members.order.MemberOrderFacetAbstract.java

private static String valueElse(final String name, final String string) {
    return !Strings.isNullOrEmpty(name) ? name : string;
}