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

Introduction

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

Prototype

public abstract <V> Optional<V> transform(Function<? super T, V> function);

Source Link

Document

If the instance is present, it is transformed with the given Function ; otherwise, Optional#absent is returned.

Usage

From source file:com.eucalyptus.auth.euare.EuareRemoteRegionService.java

private <R extends IdentityMessage> R send( //TODO:STEVE: move send to a helper (also RemoteIdentityProvider#send)
        final Optional<RegionInfo> region, final IdentityMessage request) throws Exception {
    final Optional<Set<String>> endpoints = region.transform(RegionInfo.serviceEndpoints("identity"));
    final ServiceConfiguration config = new EphemeralConfiguration(ComponentIds.lookup(Identity.class),
            "identity", "identity", URI.create(Iterables.get(endpoints.get(), 0))); //TODO:STEVE: endpoint handling
    return AsyncRequests.sendSync(config, request);
}

From source file:com.facebook.buck.java.JavaLibraryBuildRuleFactory.java

@Override
protected void amendBuilder(DefaultJavaLibraryRule.Builder builder, BuildRuleFactoryParams params)
        throws NoSuchBuildTargetException {
    Optional<String> proguardConfig = params.getOptionalStringAttribute("proguard_config");
    builder.setProguardConfig(//from   ww w  .j  a  v a2 s.  co m
            proguardConfig.transform(params.getResolveFilePathRelativeToBuildFileDirectoryTransform()));

    for (String exportedDep : params.getOptionalListAttribute("exported_deps")) {
        BuildTarget buildTarget = params.resolveBuildTarget(exportedDep);
        builder.addExportedDep(buildTarget);
    }

    extractAnnotationProcessorParameters(builder.getAnnotationProcessingBuilder(), builder, params);

    Optional<String> sourceLevel = params.getOptionalStringAttribute("source");
    if (sourceLevel.isPresent()) {
        builder.setSourceLevel(sourceLevel.get());
    }

    Optional<String> targetLevel = params.getOptionalStringAttribute("target");
    if (targetLevel.isPresent()) {
        builder.setTargetLevel(targetLevel.get());
    }
}

From source file:springfox.documentation.schema.property.ObjectMapperBeanPropertyNamingStrategy.java

@Override
public String nameForSerialization(final BeanPropertyDefinition beanProperty) {

    SerializationConfig serializationConfig = objectMapper.getSerializationConfig();

    Optional<PropertyNamingStrategy> namingStrategy = Optional
            .fromNullable(serializationConfig.getPropertyNamingStrategy());
    String newName = namingStrategy
            .transform(BeanPropertyDefinitions.overTheWireName(beanProperty, serializationConfig))
            .or(beanProperty.getName());

    LOG.debug("Name '{}' renamed to '{}'", beanProperty.getName(), newName);

    return newName;
}

From source file:springfox.documentation.schema.property.ObjectMapperBeanPropertyNamingStrategy.java

@Override
public String nameForDeserialization(final BeanPropertyDefinition beanProperty) {

    DeserializationConfig deserializationConfig = objectMapper.getDeserializationConfig();

    Optional<PropertyNamingStrategy> namingStrategy = Optional
            .fromNullable(deserializationConfig.getPropertyNamingStrategy());
    String newName = namingStrategy
            .transform(BeanPropertyDefinitions.overTheWireName(beanProperty, deserializationConfig))
            .or(beanProperty.getName());

    LOG.debug("Name '{}' renamed to '{}'", beanProperty.getName(), newName);

    return newName;
}

From source file:com.qcadoo.mes.deviationCausesReporting.hooks.DeviationReportGeneratorViewHooks.java

private boolean isViewAlreadyInitialized(final ViewDefinitionState view) {
    Optional<CheckBoxComponent> maybeCheckBox = view
            .tryFindComponentByReference(DeviationReportGeneratorViewReferences.IS_VIEW_INITIALIZED);
    return maybeCheckBox.transform(new Function<CheckBoxComponent, Boolean>() {

        @Override/* w w w .  j a  v  a  2s.c o m*/
        public Boolean apply(final CheckBoxComponent component) {
            return component.isChecked();
        }
    }).or(false);
}

From source file:com.qcadoo.mes.productionPerShift.dates.OrderRealizationDaysResolver.java

private boolean shiftWorkTimeMatchPredicate(final Optional<Shift> maybeShift,
        final Optional<TimeRange> workTime, final Function<TimeRange, Boolean> workTimePredicate) {
    return maybeShift.transform(shift -> workTime.transform(workTimePredicate).or(false)).or(false);
}

From source file:org.apache.james.imap.processor.GetAnnotationProcessor.java

private Optional<Integer> getMaxSizeValue(final List<MailboxAnnotation> mailboxAnnotations,
        Optional<Integer> maxsize) {
    if (maxsize.isPresent()) {
        return maxsize.transform(new Function<Integer, Optional<Integer>>() {
            @Override//from ww  w  .  j  av a2 s .  co  m
            public Optional<Integer> apply(Integer input) {
                return getMaxSizeOfOversizedItems(mailboxAnnotations, input);
            }
        }).get();
    }
    return Optional.absent();
}

From source file:org.apache.aurora.scheduler.mesos.DriverFactoryImpl.java

@Override
public SchedulerDriver create(Scheduler scheduler, Optional<Protos.Credential> credentials,
        Protos.FrameworkInfo frameworkInfo, String master) {

    FrameworkInfo convertedFrameworkInfo = convert(frameworkInfo);
    Optional<Credential> convertedCredentials = credentials.transform(ProtosConversion::convert);

    if (credentials.isPresent()) {
        return new MesosSchedulerDriver(scheduler, convertedFrameworkInfo, master, false, // Disable implicit acknowledgements.
                convertedCredentials.get());
    } else {/*ww  w.  j  a  v  a2s.c  o m*/
        return new MesosSchedulerDriver(scheduler, convertedFrameworkInfo, master, false); // Disable implicit acknowledgements.
    }
}

From source file:org.apache.james.mailbox.store.mail.model.impl.MessageParser.java

private Optional<String> contentType(Optional<ContentTypeField> contentTypeField) {
    return contentTypeField.transform(new Function<ContentTypeField, Optional<String>>() {
        @Override//from   w ww.j a v a 2s .  co m
        public Optional<String> apply(ContentTypeField field) {
            return Optional.fromNullable(field.getMimeType());
        }
    }).or(Optional.<String>absent());
}

From source file:org.apache.james.mailbox.store.mail.model.impl.MessageParser.java

private Optional<Cid> cid(Optional<ContentIdField> contentIdField) {
    return contentIdField.transform(new Function<ContentIdField, Optional<Cid>>() {
        @Override/*from   w  w w. j a  v  a  2  s. co m*/
        public Optional<Cid> apply(ContentIdField field) {
            return Optional.fromNullable(field.getId()).transform(new Function<String, Cid>() {

                @Override
                public Cid apply(String cid) {
                    return Cid.from(cid);
                }
            });
        }
    }).or(Optional.<Cid>absent());
}