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:net.es.nsi.pce.pf.PfUtils.java

public static String getSourceStpOrFail(AttrConstraints constraints) {
    String sourceStp = getP2PServiceBaseTypeOrFail(constraints).getSourceSTP();
    if (Strings.isNullOrEmpty(sourceStp)) {
        throw Exceptions.missingParameter(Point2PointTypes.getSourceStp().getNamespace(),
                Point2PointTypes.getSourceStp().getType(), "null");
    }//from  w  ww .  j  ava  2 s  .  c o  m

    return sourceStp;
}

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

@Override
public Date apply(String input) {
    return Strings.isNullOrEmpty(input) ? null : ExporterDateUtils.parseDate(input);
}

From source file:com.enonic.cms.core.search.result.AbstractFacetResultXmlCreator.java

protected void addAttributeIfNotNull(Element element, String attributeName, String value) {
    if (Strings.isNullOrEmpty(value)) {
        return;//  www.  j  a va 2  s  . c  o m
    }

    element.setAttribute(attributeName, value);

}

From source file:org.easyrec.utils.io.MySQL.java

/**
 * This function adds a Like clause to an SQL statement.
 * The Like clause starts with the keyword "AND" meaning that given sql string
 * has to end with the keyword/* w  w w  .  ja va  2 s.c o m*/
 * "WHERE" and a clause (e.g. 1=1) before the like clause can be appended.
 * If the attributeValue has less than 3 charactars a equal comparison is
 * performed.
 *
 * @param sql
 * @param attribute
 * @param attributeValue
 *
 */
public static StringBuilder addLikeClause(StringBuilder sql, String attribute, String attributeValue) {
    if (Strings.isNullOrEmpty(attributeValue))
        return sql;

    if (attributeValue.length() > 2) {
        return sql.append(" AND ").append(attribute).append(" LIKE '%").append(attributeValue).append("%' ");
    } else {
        return sql.append(" AND ").append(attribute).append(" = '").append(attributeValue).append("' ");
    }
}

From source file:org.apache.isis.core.metamodel.facets.object.domainobject.objectspecid.ObjectSpecIdFacetForDomainObjectAnnotation.java

public static ObjectSpecIdFacet create(final DomainObject domainObject, final FacetHolder holder) {

    if (domainObject == null) {
        return null;
    }/*from  ww w  .j  a  va2 s .co m*/

    final String objectType = domainObject.objectType();
    if (Strings.isNullOrEmpty(objectType)) {
        return null;
    }
    return new ObjectSpecIdFacetForDomainObjectAnnotation(objectType, holder);
}

From source file:org.sonar.core.measure.db.MeasureKey.java

public static MeasureKey of(String componentKey, String metricKey) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(componentKey), "Component key must be set");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(metricKey), "Metric key must be set");
    return new MeasureKey(componentKey, metricKey);
}

From source file:org.apache.camel.component.jclouds.JcloudsBlobStoreHelper.java

/**
 * Creates all directories that are part of the blobName.
 *///from  w  w w .j  a v a 2 s  .  c o  m
public static void mkDirs(BlobStore blobStore, String container, String blobName) {
    if (blobStore != null && !Strings.isNullOrEmpty(blobName) && blobName.contains("/")) {
        String directory = BlobStoreUtils.parseDirectoryFromPath(blobName);
        blobStore.createDirectory(container, directory);
    }
}

From source file:org.sonatype.nexus.security.UserIdMdcHelper.java

public static boolean isSet() {
    String userId = MDC.get(KEY);
    return !(Strings.isNullOrEmpty(userId) || UNKNOWN.equals(userId));
}

From source file:org.sourcepit.common.maven.util.Xpp3Utils.java

public static void addDependencyValues(@NotNull final Xpp3Dom dependencyNode, @NotNull Dependency dependency) {
    String value = dependency.getGroupId();
    if (!Strings.isNullOrEmpty(value)) {
        addValueNode(dependencyNode, "groupId", value);
    }//from  ww  w  .  j  ava 2 s.  co m

    value = dependency.getArtifactId();
    if (!Strings.isNullOrEmpty(value)) {
        addValueNode(dependencyNode, "artifactId", value);
    }

    value = dependency.getVersion();
    if (!Strings.isNullOrEmpty(value)) {
        addValueNode(dependencyNode, "version", value);
    }

    value = dependency.getType();
    if (!Strings.isNullOrEmpty(value) && !"jar".equals(value)) {
        addValueNode(dependencyNode, "type", value);
    }

    value = dependency.getClassifier();
    if (!Strings.isNullOrEmpty(value)) {
        addValueNode(dependencyNode, "classifier", value);
    }

    value = dependency.getScope();
    if (!Strings.isNullOrEmpty(value) && !"compile".equals(value)) {
        addValueNode(dependencyNode, "scope", value);
    }

    value = dependency.getSystemPath();
    if (!Strings.isNullOrEmpty(value)) {
        addValueNode(dependencyNode, "systemPath", value);
    }

    value = dependency.getOptional();
    if (!Strings.isNullOrEmpty(value) && !"false".equals(value)) {
        addValueNode(dependencyNode, "optional", value);
    }
}

From source file:org.apache.james.jmap.utils.DownloadPath.java

public static DownloadPath from(String path) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(path), "'path' is mandatory");

    // path =  /blobId/name
    // idx  = 0 1      2
    List<String> pathVariables = Splitter.on('/').splitToList(path);
    Preconditions.checkArgument(pathVariables.size() >= 1 && pathVariables.size() <= 3,
            "'blobId' is mandatory");

    String blobId = Iterables.get(pathVariables, 1, null);
    Preconditions.checkArgument(!Strings.isNullOrEmpty(blobId), "'blobId' is mandatory");

    return new DownloadPath(blobId, name(pathVariables));
}