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

Introduction

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

Prototype

public abstract T get();

Source Link

Document

Returns the contained instance, which must be present.

Usage

From source file:org.opendaylight.controller.config.threadpool.util.FlexibleThreadPoolWrapper.java

/**
 * Overriding the queue://from   w  ww .  ja  va 2 s . c o m
 * ThreadPoolExecutor would not create new threads if the queue is not full, thus adding
 * occurs in RejectedExecutionHandler.
 * This impl saturates threadpool first, then queue. When both are full caller will get blocked.
 */
private static ForwardingBlockingQueue getQueue(Optional<Integer> capacity) {
    final BlockingQueue<Runnable> delegate = capacity.isPresent()
            ? new LinkedBlockingQueue<Runnable>(capacity.get())
            : new LinkedBlockingQueue<Runnable>();
    return new ForwardingBlockingQueue(delegate);
}

From source file:org.asciidoctor.asciidoclet.DocletOptions.java

public static boolean validOptions(String[][] options, DocErrorReporter errorReporter,
        StandardAdapter standardDoclet) {
    DocletOptions docletOptions = new DocletOptions(options);

    if (!docletOptions.baseDir().isPresent()) {
        errorReporter.printWarning(//w w  w.  ja va2s  .  c om
                BASEDIR + " must be present for includes or file reference features to work properly.");
    }

    Optional<File> attrsFile = docletOptions.attributesFile();
    if (attrsFile.isPresent() && !attrsFile.get().canRead()) {
        errorReporter.printWarning("Cannot read attributes file " + attrsFile.get());
    }

    return standardDoclet.validOptions(options, errorReporter);
}

From source file:org.jclouds.aliyun.ecs.domain.IpProtocol.java

public static IpProtocol fromValue(String value) {
    Optional<IpProtocol> ipProtocol = Enums.getIfPresent(IpProtocol.class, value.toUpperCase());
    checkArgument(ipProtocol.isPresent(), "Expected one of %s but was %s",
            Joiner.on(',').join(IpProtocol.values()), value);
    return ipProtocol.get();
}

From source file:org.apache.gobblin.service.modules.spec.JobExecutionPlanDagFactory.java

/**
 * The job name is derived from the {@link org.apache.gobblin.runtime.api.JobTemplate} URI. It is the
 * simple name of the path component of the URI.
 * @param jobExecutionPlan/*from w w  w .  ja v a  2  s.  co m*/
 * @return the simple name from the URI path.
 */
private static String getJobName(JobExecutionPlan jobExecutionPlan) {
    Optional<URI> jobTemplateUri = jobExecutionPlan.getJobSpec().getTemplateURI();
    if (jobTemplateUri.isPresent()) {
        return Files.getNameWithoutExtension(new Path(jobTemplateUri.get()).getName());
    } else {
        return null;
    }
}

From source file:google.registry.monitoring.whitebox.EppMetric.java

/**
 * Helper method to populate an {@link com.google.common.collect.ImmutableMap.Builder} with an
 * {@link Optional} value if the value is {@link Optional#isPresent()}.
 *///from   ww  w .  j  a va2  s. c o m
private static <T> void addOptional(String key, Optional<T> value, ImmutableMap.Builder<String, String> map) {
    if (value.isPresent()) {
        map.put(key, value.get().toString());
    }
}

From source file:springfox.documentation.schema.Enums.java

static List<String> getEnumValues(final Class<?> subject) {
    return transformUnique(subject.getEnumConstants(), new Function<Object, String>() {
        @Override//from  w  ww.jav a  2  s  . c  o m
        public String apply(Object input) {
            Optional<String> jsonValue = findJsonValueAnnotatedMethod(input)
                    .transform(evaluateJsonValue(input));
            if (jsonValue.isPresent() && !isNullOrEmpty(jsonValue.get())) {
                return jsonValue.get();
            }
            return input.toString();
        }
    });
}

From source file:org.anhonesteffort.flock.sync.key.KeySyncUtil.java

public static HidingCalDavCollection getOrCreateKeyCollection(Context context, DavAccount account)
        throws PropertyParseException, DavException, GeneralSecurityException, IOException {
    Log.d(TAG, "getOrCreateKeyCollection()");

    Optional<HidingCalDavCollection> keyCollection = getKeyCollection(context, account);
    if (keyCollection.isPresent())
        return keyCollection.get();

    HidingCalDavStore store = DavAccountHelper.getHidingCalDavStore(context, account, null);
    Optional<String> calendarHomeSet = store.getCalendarHomeSet();

    if (!calendarHomeSet.isPresent())
        throw new PropertyParseException("No calendar-home-set property found for user.", store.getHostHREF(),
                CalDavConstants.PROPERTY_NAME_CALENDAR_HOME_SET);

    Log.d(TAG, "creating key collection");
    store.addCollection(calendarHomeSet.get().concat(KeySyncUtil.PATH_KEY_COLLECTION));
    keyCollection = store.getCollection(calendarHomeSet.get().concat(KeySyncUtil.PATH_KEY_COLLECTION));

    if (!keyCollection.isPresent())
        throw new DavException(500, "WebDAV server did not create our key collection!");

    return keyCollection.get();
}

From source file:com.complexible.common.collect.Iterables2.java

public static <T> Iterable<T> present(final Iterable<Optional<T>> theIterable) {
    return new Iterable<T>() {
        public Iterator<T> iterator() {
            return new AbstractIterator<T>() {
                private Iterator<Optional<T>> theIter = theIterable.iterator();

                @Override/*from  w  w w.j a  v a2 s .  c o  m*/
                protected T computeNext() {
                    while (theIter.hasNext()) {
                        Optional<T> aOptional = theIter.next();
                        if (aOptional.isPresent()) {
                            return aOptional.get();
                        }
                    }
                    return endOfData();
                }
            };
        }
    };
}

From source file:org.opendaylight.mdsal.dom.spi.RpcRoutingStrategy.java

public static RpcRoutingStrategy from(final RpcDefinition rpc) {
    ContainerSchemaNode input = rpc.getInput();
    if (input != null) {
        for (DataSchemaNode schemaNode : input.getChildNodes()) {
            Optional<QName> context = getRoutingContext(schemaNode);
            if (context.isPresent()) {
                return new RoutedRpcStrategy(rpc.getQName(), context.get(), schemaNode.getQName());
            }/*  w w  w.j  av  a2s  . c o  m*/
        }
    }
    return new GlobalRpcStrategy(rpc.getQName());
}

From source file:com.facebook.buck.jvm.java.JavacOptionsFactory.java

public static JavacOptions create(JavacOptions defaultOptions, BuildRuleParams params,
        BuildRuleResolver resolver, SourcePathResolver pathResolver, JvmLibraryArg jvmLibraryArg) {
    if ((jvmLibraryArg.source.isPresent() || jvmLibraryArg.target.isPresent())
            && jvmLibraryArg.javaVersion.isPresent()) {
        throw new HumanReadableException("Please set either source and target or java_version.");
    }//from  w  w  w  .  ja v a2s  . co m

    JavacOptions.Builder builder = JavacOptions.builder(defaultOptions);

    if (jvmLibraryArg.javaVersion.isPresent()) {
        builder.setSourceLevel(jvmLibraryArg.javaVersion.get());
        builder.setTargetLevel(jvmLibraryArg.javaVersion.get());
    }

    if (jvmLibraryArg.source.isPresent()) {
        builder.setSourceLevel(jvmLibraryArg.source.get());
    }

    if (jvmLibraryArg.target.isPresent()) {
        builder.setTargetLevel(jvmLibraryArg.target.get());
    }

    if (jvmLibraryArg.extraArguments.isPresent()) {
        builder.addAllExtraArguments(jvmLibraryArg.extraArguments.get());
    }

    if (jvmLibraryArg.compiler.isPresent()) {
        Either<BuiltInJavac, SourcePath> either = jvmLibraryArg.compiler.get();

        if (either.isRight()) {
            SourcePath sourcePath = either.getRight();

            Optional<BuildRule> possibleRule = pathResolver.getRule(sourcePath);
            if (possibleRule.isPresent()) {
                BuildRule rule = possibleRule.get();
                if (rule instanceof PrebuiltJar) {
                    builder.setJavacJarPath(new BuildTargetSourcePath(rule.getBuildTarget()));
                } else {
                    throw new HumanReadableException("Only prebuilt_jar targets can be used as a javac");
                }
            } else {
                builder.setJavacPath(pathResolver.getAbsolutePath(sourcePath));
            }
        }
    } else {
        if (jvmLibraryArg.javac.isPresent() || jvmLibraryArg.javacJar.isPresent()) {
            if (jvmLibraryArg.javac.isPresent() && jvmLibraryArg.javacJar.isPresent()) {
                throw new HumanReadableException("Cannot set both javac and javacjar");
            }
            builder.setJavacPath(jvmLibraryArg.javac);
            builder.setJavacJarPath(jvmLibraryArg.javacJar);
        }
    }

    AnnotationProcessingParams annotationParams = jvmLibraryArg
            .buildAnnotationProcessingParams(params.getBuildTarget(), params.getProjectFilesystem(), resolver);
    builder.setAnnotationProcessingParams(annotationParams);

    return builder.build();
}