Example usage for com.google.common.base Strings emptyToNull

Introduction

In this page you can find the example usage for com.google.common.base Strings emptyToNull.

Prototype

@Nullable
public static String emptyToNull(@Nullable String string)

Source Link

Document

Returns the given string if it is nonempty; null otherwise.

Usage

From source file:net.es.nsi.pce.pf.PfUtils.java

public static String getSourceStpOrFail(P2PServiceBaseType p2ps) {
    Optional<String> sourceStp = Optional.fromNullable(Strings.emptyToNull(p2ps.getSourceSTP()));
    if (sourceStp.isPresent()) {
        return sourceStp.get();
    }/*from www  . j  a  va2  s.co m*/

    throw Exceptions.missingParameter(Point2PointTypes.getSourceStp().getNamespace(),
            Point2PointTypes.getSourceStp().getType(), "null");
}

From source file:org.apache.isis.core.metamodel.facets.properties.propertylayout.LabelAtFacetOnPropertyFromLayoutProperties.java

private static LabelPosition labelPosition(Properties properties) {
    if (properties == null) {
        return null;
    }/*from ww  w. j  a  v a2 s.  c  o m*/
    String labelPosition = Strings.emptyToNull(properties.getProperty("labelPosition"));
    if (labelPosition == null) {
        // alternative key (cos I keep forgetting which to use).
        labelPosition = Strings.emptyToNull(properties.getProperty("labelAt"));
    }
    if (labelPosition == null) {
        return null;
    }
    return LabelPosition.valueOf(labelPosition);
}

From source file:org.apache.isis.core.metamodel.facets.actions.layout.ActionPositionFacetOnActionFromLayoutProperties.java

private static ActionLayout.Position position(Properties properties) {
    if (properties == null) {
        return null;
    }/*from   ww w. j av  a  2 s . c om*/
    String position = Strings.emptyToNull(properties.getProperty("position"));
    if (position == null) {
        position = Strings.emptyToNull(properties.getProperty("actionPosition"));
    }
    if (position == null) {
        return null;
    }
    return ActionLayout.Position.valueOf(position);
}

From source file:org.apache.isis.core.metamodel.facets.properties.layout.RenderedAdjustedFacetOnPropertyFromLayoutProperties.java

private static boolean renderedAsDayBefore(Properties properties) {
    if (properties == null) {
        return false;
    }//from  w  ww .j  a v  a 2 s .  c  o  m
    String renderedAsDayBefore = Strings.emptyToNull(properties.getProperty("renderedAsDayBefore"));
    return renderedAsDayBefore != null && Boolean.parseBoolean(renderedAsDayBefore);
}

From source file:org.apache.isis.core.metamodel.facets.collections.layout.SortedByFacetOnCollectionFromLayoutProperties.java

private static Class<?> sortedBy(Properties properties) {
    if (properties == null) {
        return null;
    }//from   w  w  w  . ja  va2 s.c  o  m
    String sortedBy = Strings.emptyToNull(properties.getProperty("sortedBy"));
    if (sortedBy == null) {
        return null;
    }
    final Class<?> sortedByClass = ClassUtil.forName(sortedBy);
    if (sortedByClass == Comparator.class) {
        return null;
    }
    return sortedByClass;
}

From source file:com.googlesource.gerrit.plugins.github.git.GitHubUser.java

private static Optional<String> initFullName(GHUser gitHubUser) throws IOException {
    return Optional.fromNullable(gitHubUser != null ? Strings.emptyToNull(gitHubUser.getName()) : null);
}

From source file:org.obiba.onyx.quartz.core.engine.questionnaire.question.Attributes.java

/**
 * @param namespace//w  w w . ja v a  2 s.  co m
 * @param name
 * @param value
 * @param locale
 * @return
 */
private static Attribute buildAttribute(String namespace, String name, String value, Locale locale) {
    Attribute.Builder attributeBuilder = Attribute.Builder.newAttribute();
    attributeBuilder.withNamespace(Strings.emptyToNull(namespace));
    attributeBuilder.withName(name);
    attributeBuilder.withValue(Strings.nullToEmpty(value));
    attributeBuilder.withLocale(locale);
    Attribute attribute = attributeBuilder.build();
    return attribute;
}

From source file:org.apache.isis.core.metamodel.facets.properties.propertylayout.TypicalLengthFacetOnPropertyFromLayoutProperties.java

private static int typicalLength(Properties properties) {
    if (properties == null) {
        return -1;
    }//w w  w  .  jav  a 2  s  .c o m
    String typicalLength = Strings.emptyToNull(properties.getProperty("typicalLength"));
    if (typicalLength == null) {
        return -1;
    }
    return Integer.parseInt(typicalLength);
}

From source file:org.jboss.hal.core.Json.java

@SuppressWarnings("unchecked")
public static List<ModelNode> parseArray(String json, Metadata metadata, Map<String, String> mappping) {
    if (Strings.emptyToNull(json) != null) {
        JsArray<JsPropertyMap<Object>> array = (JsArray<JsPropertyMap<Object>>) JSON.parse(json);
        if (array.length != 0) {
            List<ModelNode> nodes = new ArrayList<>();
            for (int i = 0; i < array.length; i++) {
                JsPropertyMap<Object> map = array.getAt(i);
                ModelNode node = iterateMap(map, metadata, mappping);
                if (node.isDefined()) {
                    nodes.add(node);/* w w w.j av a  2 s  . com*/
                }
            }
            return nodes;
        } else {
            logger.warn(EMPTY_JSON, json);
            return emptyList();
        }
    } else {
        logger.warn(EMPTY_JSON, json);
        return emptyList();
    }
}

From source file:org.apache.isis.core.metamodel.facets.properties.propertylayout.PromptStyleFacetOnPropertyFromLayoutProperties.java

private static PromptStyle promptStyle(Properties properties) {
    if (properties == null) {
        return null;
    }/*w  w  w.  j av a 2s .c  o m*/
    String propertyPromptStyle = Strings.emptyToNull(properties.getProperty("promptStyle"));
    if (propertyPromptStyle == null) {
        return null;
    }
    return PromptStyle.valueOf(propertyPromptStyle);
}