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.zaradai.kunzite.trader.events.MarketData.java

public static MarketData newInstance(String instrumentId, DateTime timestamp, List<MarketDataField> fields) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(instrumentId), "Invalid Instrument");
    Preconditions.checkNotNull(timestamp, "Invalid timestamp");
    Preconditions.checkNotNull(fields, "Invalid fields specified");

    return new MarketData(instrumentId, timestamp, fields);
}

From source file:com.shampan.db.services.StatusController.java

public static void getStatuses(RoutingContext routingContext) {

    String userId;//  w w  w .j a v a 2 s  .c om
    /**
     * Default offset is 0 Default limit is 10 User id is mandatory
     */
    int offset = 0, limit = 0;

    userId = routingContext.request().getParam("userId");
    if (Strings.isNullOrEmpty(userId)) {
        routingContext.response().end("failed");
    }

    /*
     If offset is incorrect then offset will be used as default
     */
    if (!Strings.isNullOrEmpty(routingContext.request().getParam("offset"))) {
        try {
            offset = Integer.parseInt(routingContext.request().getParam("offset"));
        } catch (NumberFormatException nfe) {
            logger.debug(nfe.getMessage());
        }
    }

    /*
     If limit is incorrect then limit will be used as default
     */
    if (!Strings.isNullOrEmpty(routingContext.request().getParam("limit"))) {
        try {
            limit = Integer.parseInt(routingContext.request().getParam("limit"));
        } catch (NumberFormatException nfe) {
            logger.debug(nfe.getMessage());
        }
    }
    routingContext.response().putHeader("content-type", "application/json; charset=utf-8")
            .end(StatusService.getStatuses(userId, offset, limit));
}

From source file:br.com.tecsinapse.exporter.converter.StringTableCellConverter.java

@Override
public String apply(String input) {
    if (Strings.isNullOrEmpty(input)) {
        return "";
    }// ww w.  j av  a2s .c om
    return input.trim();
}

From source file:com.google.gerrit.server.change.HashtagsUtil.java

public static Set<String> extractTags(String input) {
    Set<String> result = new HashSet<>();
    if (!Strings.isNullOrEmpty(input)) {
        Matcher matcher = Pattern.compile(PATTERN).matcher(input);
        while (matcher.find()) {
            result.add(cleanupHashtag(matcher.group()));
        }/* w  w  w.j av a 2  s  .  c o  m*/
    }
    return result;
}

From source file:io.sarl.eclipse.util.Utilities.java

/** Null-safe version parser.
 *
 * @param version - the version string./*from  w w w  .j  a va  2  s.  co  m*/
 * @return the version.
 */
public static Version parseVersion(String version) {
    if (!Strings.isNullOrEmpty(version)) {
        try {
            return Version.parseVersion(version);
        } catch (Throwable exception) {
            //
        }
    }
    return null;
}

From source file:org.richfaces.util.MessageUtil.java

public static String getLabel(FacesContext context, UIComponent component) {
    String label = (String) component.getAttributes().get("label");

    if (Strings.isNullOrEmpty(label)) {
        label = component.getClientId(context);
    }/*from   w w w . ja v  a2 s.  co  m*/

    return label;
}

From source file:com.b2international.snowowl.snomed.core.domain.constraint.SnomedPredicate.java

static String getCharacteristicTypeExpression(final String characteristicTypeId) {
    return Strings.isNullOrEmpty(characteristicTypeId) ? "<" + Concepts.CHARACTERISTIC_TYPE
            : "<<" + characteristicTypeId;
}

From source file:org.attribyte.api.http.NamedValues.java

/**
 * Copies values from an array to an immutable list.
 * Empty or <code>null</code> values are ignored.
 * @param values The input values./*w w  w.  jav  a2  s  .c om*/
 * @return The internal values.
 */
static final ImmutableList<String> copyValues(final String[] values) {
    if (values == null || values.length == 0) {
        return ImmutableList.of();
    } else {
        ImmutableList.Builder<String> builder = ImmutableList.builder();
        for (final String value : values) {
            if (!Strings.isNullOrEmpty(value)) {
                builder.add(value);
            }
        }
        return builder.build();
    }
}

From source file:com.b2international.snowowl.datastore.request.BranchMergeRequest.java

private static String commitMessageOrDefault(final String sourcePath, final String targetPath,
        final String commitMessage) {
    return !Strings.isNullOrEmpty(commitMessage) ? commitMessage
            : String.format("Merge branch '%s' into '%s'", sourcePath, targetPath);
}

From source file:com.parallax.server.blocklyprop.utils.ServletUtils.java

public static String getCdnUrl(String url, boolean isSecure) {
    if (!Strings.isNullOrEmpty(url)) {
        // System.out.println("Geturl: " + url);

        String cdnUrl = Properties.getConfiguration().getString("cdnfiles.baseurl");
        if (isSecure) {
            cdnUrl = cdnUrl.replaceFirst("http://", "https://");
            cdnUrl = Properties.getConfiguration().getString("cdnfiles.baseurl.https", cdnUrl);
        }/*from w w w.j  ava  2 s  . c o  m*/

        return cdnUrl + (url.startsWith("/") ? "" : "/") + url;
    } else {
        System.out.println("Url = null or empty");
        return "";
    }
}