Example usage for com.google.common.base Optional fromNullable

Introduction

In this page you can find the example usage for com.google.common.base Optional fromNullable.

Prototype

public static <T> Optional<T> fromNullable(@Nullable T nullableReference)

Source Link

Document

If nullableReference is non-null, returns an Optional instance containing that reference; otherwise returns Optional#absent .

Usage

From source file:org.basepom.mojo.propertyhelper.beans.MacroDefinition.java

public Optional<String> getMacroType() {
    return Optional.fromNullable(macroType);
}

From source file:io.macgyver.core.resource.ResourceProvider.java

public Optional<Resource> findResourceByPath(String path) throws IOException {
    try {/*from   www. ja  v  a  2  s .c o m*/
        return Optional.fromNullable(getResourceByPath(path));
    } catch (IOException e) {

    }
    return Optional.absent();
}

From source file:io.crate.sql.tree.Delete.java

public Delete(Relation relation, @Nullable Expression where) {
    Preconditions.checkNotNull(relation, "relation is null");
    this.relation = relation;
    this.where = Optional.fromNullable(where);
}

From source file:com.facebook.buck.rules.FakeOnDiskBuildInfo.java

@Override
public Optional<RuleKey> getRuleKey() {
    return Optional.fromNullable(ruleKey);
}

From source file:io.crate.sql.tree.ShowTables.java

public ShowTables(@Nullable QualifiedName schema, @Nullable String likePattern,
        @Nullable Expression whereExpression) {
    this.schema = Optional.fromNullable(schema);
    this.whereExpression = Optional.fromNullable(whereExpression);
    this.likePattern = Optional.fromNullable(likePattern);
}

From source file:org.apache.aurora.scheduler.storage.db.DbQuotaStore.java

@Timed("quota_store_fetch_quota")
@Override//ww w. j  a v a  2 s .c o m
public Optional<IResourceAggregate> fetchQuota(String role) {
    return Optional.fromNullable(mapper.select(role)).transform(DBResourceAggregate::toImmutable);
}

From source file:com.tinspx.util.base.Base.java

/**
 * Attempts to parse the integer if is an Integer, Number, or CharSequence
 *//*  w  w  w  . ja v a  2 s . c  om*/
public static Optional<Integer> parseInt(@Nullable Object o) {
    if (o instanceof Integer) {
        return Optional.of((Integer) o);
    } else if (o instanceof Number) {
        return Optional.of(((Number) o).intValue());
    } else if (o instanceof CharSequence) {
        return Optional.fromNullable(Ints.tryParse(o.toString()));
    } else {
        return Optional.absent();
    }
}

From source file:im.dadoo.teak.biz.bo.impl.DefaultPageBO.java

@Override
public Optional<PagePO> insert(String name, String title, String author, String html) {
    long publishDatetime = System.currentTimeMillis();
    int click = 0;
    String text = Jsoup.parse(html).text();

    PagePO pagePO = new PagePO();
    pagePO.setName(name);//w  ww. ja  v a 2  s. c o  m
    pagePO.setTitle(title);
    pagePO.setAuthor(author);
    pagePO.setHtml(html);
    pagePO.setText(text);
    pagePO.setPublishDatetime(publishDatetime);
    pagePO.setClick(click);
    return Optional.fromNullable(this.pageDAO.insert(pagePO));
}

From source file:com.github.autermann.wps.commons.description.input.BoundingBoxInputDescription.java

protected BoundingBoxInputDescription(Builder<?, ?> builder) {
    super(builder);
    this.supportedCRS = builder.getSupportedCRS().build();
    this.defaultCRS = Optional.fromNullable(builder.getDefaultCRS());
}

From source file:se.sics.ktoolbox.util.aggregation.AggregationLevelOption.java

@Override
public Optional<AggregationLevel> readValue(Config config) {
    Optional aggLevelOpt = config.readValue(name);
    if (aggLevelOpt.isPresent()) {
        if (aggLevelOpt.get() instanceof String) {
            AggregationLevel aggLevel = AggregationLevel.create((String) aggLevelOpt.get());
            return Optional.fromNullable(aggLevel);
        } else if (aggLevelOpt.get() instanceof AggregationLevel) {
            return aggLevelOpt;
        }//w ww  . j a  v a2s .c  om
    }
    return Optional.absent();
}