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:de.flapdoodle.logparser.streamlistener.OnceAndOnlyOnceStreamListener.java

public Optional<T> value() {
    return Optional.fromNullable(_value);
}

From source file:org.jclouds.rest.internal.GetAcceptHeaders.java

@Override
public Set<String> apply(Invocation invocation) {
    Optional<Consumes> accept = Optional.fromNullable(invocation.getInvokable().getAnnotation(Consumes.class))
            .or(Optional.fromNullable(
                    invocation.getInvokable().getOwnerType().getRawType().getAnnotation(Consumes.class)));
    return (accept.isPresent()) ? ImmutableSet.copyOf(accept.get().value()) : ImmutableSet.<String>of();
}

From source file:com.ngdata.hbaseindexer.util.solr.SolrConnectionParamUtil.java

public static int getSolrMaxConnectionsTotal(Map<String, String> connectionParameters) {
    return Integer.parseInt(
            Optional.fromNullable(connectionParameters.get(SolrConnectionParams.MAX_CONNECTIONS)).or("32"));
}

From source file:org.geogit.storage.memory.Graph.java

/**
 * Looks up a node in the graph by its identifier. 
 */
public Optional<Node> get(ObjectId id) {
    return Optional.fromNullable(nodes.get(id));
}

From source file:com.spotify.heroic.coalesce.CoalesceConfig.java

@JsonCreator
public CoalesceConfig(final List<CoalesceTask> tasks) {
    this.tasks = Optional.fromNullable(tasks).or(ImmutableList::of);
}

From source file:com.streamsets.pipeline.stage.processor.kv.local.LocalStore.java

public Optional<String> get(String key) {
    return Optional.fromNullable(conf.values.get(key));
}

From source file:io.github.robwin.swagger2markup.utils.TagUtils.java

/**
 * Retrieves the optional description of a tag.
 *
 * @param tagsMap the Map of tags//from  w  w  w .  j a  v  a2 s . c  o m
 * @param tagName the name of the tag
 * @return the optional description of the tag
 */
public static Optional<String> getTagDescription(Map<String, Tag> tagsMap, String tagName) {
    Tag tag = tagsMap.get(tagName);
    if (tag != null) {
        return Optional.fromNullable(tag.getDescription());
    }
    return Optional.absent();
}

From source file:fathom.quartz.QuartzModule.java

@Override
protected void setup() {
    Optional<String> applicationPackage = Optional.fromNullable(getSettings().getApplicationPackage());
    String fullClassName = ClassUtil.buildClassName(applicationPackage, JOBS_CLASS);
    if (ClassUtil.doesClassExist(fullClassName)) {
        Class<?> moduleClass = ClassUtil.getClass(fullClassName);
        if (JobsModule.class.isAssignableFrom(moduleClass)) {
            JobsModule jobsModule = (JobsModule) ClassUtil.newInstance(moduleClass);
            if (jobsModule != null) {

                log.info("Scheduling Quartz jobs in '{}'", jobsModule.getClass().getName());
                install(jobsModule);/*  w  w w  .  ja v  a2s  .  co  m*/

                bind(Quartz.class);
            }
        }
    }
}

From source file:com.pingcap.tikv.PDMockServer.java

public void addGetMemberResp(GetMembersResponse r) {
    getMembersResp.addLast(Optional.fromNullable(r));
}

From source file:org.geogig.osm.internal.history.Change.java

public Optional<Node> getNode() {
    return Optional.fromNullable(node);
}