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.palantir.atlasdb.cli.services.ServicesConfigModule.java

private static JsonNode getConfigNode(ObjectMapper configMapper, File configFile, String configRoot)
        throws IOException {
    JsonNode node = configMapper.readTree(configFile);
    if (Strings.isNullOrEmpty(configRoot)) {
        return node;
    } else {/*from   w ww.j  ava 2s .c  o m*/
        JsonNode rootNode = findRoot(node, configRoot);
        if (rootNode != null) {
            return rootNode;
        }
        throw new IllegalArgumentException("Could not find " + configRoot + " in yaml file " + configFile);
    }
}

From source file:jp.tomorrowkey.irkit4j.http.HttpParameter.java

public HttpParameter(String key, String value) {
    if (Strings.isNullOrEmpty(key))
        throw new IllegalArgumentException("key must not be null or empty");
    if (Strings.isNullOrEmpty(value))
        throw new IllegalArgumentException("value must not be null or empty");

    this.key = key;
    this.value = value;
}

From source file:com.eucalyptus.network.NetworkMode.java

/**
 * Network mode from the value if present, else the given default
 *//* w ww.  ja  v a2  s  .c o  m*/
@Nonnull
public static NetworkMode fromString(@Nullable final String value, @Nonnull final NetworkMode defaultMode) {
    Parameters.checkParam("defaultMode", defaultMode, notNullValue());
    //noinspection ConstantConditions
    return !Strings.isNullOrEmpty(value) ? fromString(value) : defaultMode;
}

From source file:org.trustedanalytics.cfbroker.store.hdfs.helper.DirHelper.java

public static String concat(String path1, String path2) {
    if (Strings.isNullOrEmpty(path2)) {
        return path1;
    }//from  w w  w . j  a  v a 2  s.co m
    if (Strings.isNullOrEmpty(path1)) {
        return path2;
    }
    return removeTrailingSlashes(path1) + "/" + removeLeadingSlashes(path2);
}

From source file:de.aikiit.spamprotector.converter.SpamProtector.java

/**
 * Converts an encoded value into a plain one.
 *
 * @param input encoded value as set in an enumeration instance of this class.
 * @return encoded value or input if no mapping is found.
 *///from www.  j a va  2s. co  m
public static String toPlain(String input) {
    if (!Strings.isNullOrEmpty(input)) {
        String toTransform = input;
        StringBuilder result = new StringBuilder();

        while (!Strings.isNullOrEmpty(toTransform)) {
            int lengthBeforeConversion = toTransform.length();

            for (String prefix : ENCODED.keySet()) {
                // cut out any found items
                if (toTransform.startsWith(prefix)) {
                    result.append(ENCODED.get(prefix).getPlain());
                    toTransform = toTransform.substring(prefix.length(), toTransform.length());
                }
            }

            // in case we did not replace any character trim one and restart
            if (toTransform.length() == lengthBeforeConversion) {
                result.append(toTransform.charAt(0));
                toTransform = toTransform.substring(1);
            }
        }

        return result.toString();

    }
    return input;
}

From source file:org.opendaylight.mdsal.binding.generator.impl.YangTextTemplate.java

static String formatToParagraph(final String text, final int nextLineIndent) {
    if (Strings.isNullOrEmpty(text)) {
        return "";
    }/*w  w w .  j a va2s  .  co  m*/

    final StringBuilder sb = new StringBuilder();
    final StringBuilder lineBuilder = new StringBuilder();
    boolean isFirstElementOnNewLineEmptyChar = false;
    final String lineIndent = Strings.repeat(" ", nextLineIndent);

    String formattedText = NEWLINE_OR_TAB.removeFrom(text);
    formattedText = formattedText.replaceAll(" +", " ");

    final StringTokenizer tokenizer = new StringTokenizer(formattedText, " ", true);

    while (tokenizer.hasMoreElements()) {
        final String nextElement = tokenizer.nextElement().toString();

        if (lineBuilder.length() + nextElement.length() > 80) {
            // Trim trailing whitespace
            for (int i = lineBuilder.length() - 1; i >= 0 && lineBuilder.charAt(i) != ' '; --i) {
                lineBuilder.setLength(i);
            }

            // Trim leading whitespace
            while (lineBuilder.charAt(0) == ' ') {
                lineBuilder.deleteCharAt(0);
            }

            sb.append(lineBuilder).append('\n');
            lineBuilder.setLength(0);

            if (nextLineIndent > 0) {
                sb.append(lineIndent);
            }

            if (" ".equals(nextElement)) {
                isFirstElementOnNewLineEmptyChar = true;
            }
        }
        if (isFirstElementOnNewLineEmptyChar) {
            isFirstElementOnNewLineEmptyChar = false;
        } else {
            lineBuilder.append(nextElement);
        }
    }

    return sb.append(lineBuilder).append('\n').toString();
}

From source file:org.n52.shetland.ogc.HasDefaultEncoding.java

default boolean isSetDefaultElementEncoding() {
    return !Strings.isNullOrEmpty(getDefaultElementEncoding());
}

From source file:th.co.geniustree.dental.angular.validator.EmailUniqueValidator.java

@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
    if (Strings.isNullOrEmpty(value)) {
        return true;
    }//from  ww  w.j  av a  2 s.c  o m
    Employee findByEmailIgnoreCase = employeeRepo.findByEmailIgnoreCase(value);
    return findByEmailIgnoreCase == null;
}

From source file:com.enonic.cms.core.search.facet.FacetBuilderFactory.java

public Set<FacetBuilder> buildFacetBuilder(ContentIndexQuery query) {
    Set<FacetBuilder> facetBuilders = Sets.newHashSet();

    String xml = query.getFacets();

    if (Strings.isNullOrEmpty(xml)) {
        return facetBuilders;
    }//from   www.j a v  a  2s.  c  o  m

    final FacetsModel facetsModel = facetsModelFactory.buildFromXml(xml);

    return facetModelEsFacetBuilder.build(facetsModel);
}

From source file:com.cloudant.mazha.matcher.IsNotEmpty.java

@Override
protected boolean matchesSafely(String item) {
    return !Strings.isNullOrEmpty(item);
}