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

Introduction

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

Prototype

@Beta
public abstract T or(Supplier<? extends T> supplier);

Source Link

Document

Returns the contained instance if it is present; supplier.get() otherwise.

Usage

From source file:org.knowm.xdropwizard.resources.HelloWorldResource.java

/** Dropwizard automatically records the duration and rate of its invocations as a Metrics Timer. */
@GET/*w  ww  .j  av  a 2 s  . c o  m*/
@Timed
public Saying sayHello(@QueryParam("name") Optional<String> name) {

    return new Saying(counter.incrementAndGet(), String.format(template, name.or(defaultName)));
}

From source file:io.scigraph.owlapi.loader.OwlLoadConfigurationLoader.java

public OwlLoadConfiguration loadConfig() throws JsonParseException, JsonMappingException, IOException {

    ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
    OwlLoadConfiguration config = mapper.readValue(configurationFile, OwlLoadConfiguration.class);

    CurieUtil curieUtil = new CurieUtil(config.getGraphConfiguration().getCuries());

    // resolve categories
    Map<String, String> resolvedCategories = new HashMap<String, String>();
    for (Map.Entry<String, String> entry : config.getCategories().entrySet()) {
        Optional<String> iriOpt = curieUtil.getIri(entry.getKey());
        resolvedCategories.put(iriOpt.or(entry.getKey()), entry.getValue());
    }/*from   ww w  .  ja va 2  s  .  c  om*/
    config.setCategories(resolvedCategories);

    // resolve MappedProperties
    List<MappedProperty> resolvedMappedProperties = new ArrayList<MappedProperty>();
    for (MappedProperty mappedProperty : config.getMappedProperties()) {
        MappedProperty resolvedMappedProperty = new MappedProperty(mappedProperty.name);
        List<String> resolvedProperties = new ArrayList<String>();
        for (String property : mappedProperty.getProperties()) {
            resolvedProperties.add(curieUtil.getIri(property).or(property));
        }
        resolvedMappedProperty.setProperties(resolvedProperties);
        resolvedMappedProperties.add(resolvedMappedProperty);
    }
    config.setMappedProperties(resolvedMappedProperties);

    return config;
}

From source file:com.pinterest.teletraan.resource.Commits.java

/**
 * Returns a list of CommitInfo from startSha inclusive to endSha exclusive,
 * or up to the specified size, whichever happens first;
 * if size == 0, then will return the full list until endSha
 * if endSha == null, then will return up to size, max_size = 500
 * It is recommended to call multiple times (pagination) with size < 30 to avoid timeout
 *///www. j av a2s. c om
@GET
public List<CommitBean> getCommits(@QueryParam("repo") String repo, @QueryParam("startSha") String startSha,
        @QueryParam("endSha") String endSha, @QueryParam("size") Optional<Integer> size) throws Exception {
    return sourceControlManager.getCommits(repo, startSha, endSha, size.or(DEFAULT_SIZE));
}

From source file:com.pinterest.teletraan.resource.HostTypes.java

@GET
@Path("/basic")
public Collection<HostTypeBean> getByProviderAndBasic(@QueryParam("provider") String provider,
        @QueryParam("basic") Optional<Boolean> basic) throws Exception {
    return hostTypeDAO.getByProviderAndBasic(provider, basic.or(true));
}

From source file:com.pinterest.teletraan.resource.Placements.java

@GET
@Path("/basic")
public Collection<PlacementBean> getByProviderAndBasic(@QueryParam("provider") String provider,
        @QueryParam("basic") Optional<Boolean> basic) throws Exception {
    return placementDAO.getByProviderAndBasic(provider, basic.or(true));
}

From source file:com.pinterest.teletraan.resource.SecurityZones.java

@GET
@Path("/basic")
public Collection<SecurityZoneBean> getByProviderAndBasic(@QueryParam("provider") String provider,
        @QueryParam("basic") Optional<Boolean> basic) throws Exception {
    return securityZoneDAO.getByProviderAndBasic(provider, basic.or(true));
}

From source file:org.jclouds.abiquo.domain.infrastructure.HypervisorType.java

public boolean supportsExtraHardDisks() {
    Optional<String> constraint = Optional.fromNullable(getConstraints().get("extra_hard_disk"));
    return Boolean.parseBoolean(constraint.or("true"));
}

From source file:io.scigraph.annotation.EntityRecognizer.java

public Collection<Entity> getEntities(String token, EntityFormatConfiguration config) {
    Query query = new Vocabulary.Query.Builder(token).build();
    List<Concept> terms = vocabulary.getConceptsFromTerm(query);

    Set<Entity> entities = newHashSet();
    for (Concept term : terms) {
        if (shouldAnnotate(term, config)) {
            Optional<String> id = curieUtil.getCurie(term.getIri());
            entities.add(new Entity(term.getLabels(), id.or(term.getIri()), term.getCategories()));
        }/*from w w w.  j a  v  a  2s  . c  om*/
    }

    return entities;
}

From source file:org.knight.examples.guava.basic.UsingAvoidingNullExamples.java

public void run() {
    Optional<String> o1 = Optional.of("Guava-library");
    if (o1.isPresent()) {
        log("o1: " + o1.get());
    } else {//from  w w  w  .  j av  a2s  .co m
        log("o1: " + o1.toString());
    }

    Optional<String> o2 = Optional.absent();
    try {
        //will cause a IllegalStateException
        log("o2: " + o2.get());
    } catch (IllegalStateException e) {
        log("o2 is absent, use get() will cause a IllegalStateException.");
    }

    Optional<String> o3 = Optional.fromNullable(null);
    log("o3 present = " + o3.isPresent());
    try {
        //will cause a IllegalStateException
        log("o3: " + o3.get());
    } catch (IllegalStateException e) {
        log("o3 is absent, use get() will cause a IllegalStateException.");
    }
    if (o3.orNull() == null) {
        log("o3 is absent, so orNull() returns null.");
    }

    Optional<String> o4 = Optional.fromNullable("Hello World");
    log("o4: " + o4.or("o4 is present, so this default value will not be printed."));

    Optional<Book> o5 = Optional.of(Book.generateBook());
    log("o5: " + o5.get().toString());
}

From source file:ninja.rythm.template.TemplateEngineRythmI18nMessageResolver.java

@Override
public String getMessage(ITemplate template, String key, Object... args) {

    Locale locale = null;//from  www  . j a v  a  2s  .c o m
    if (args.length > 0) {
        Object arg0 = args[0];
        if (arg0 instanceof Locale) {
            locale = (Locale) arg0;
            Object[] args0 = new Object[args.length - 1];
            System.arraycopy(args, 1, args0, 0, args.length - 1);
            args = args0;
        }
    }

    if (locale == null && template != null) {
        locale = (template == null) ? RythmEngine.get().renderSettings.locale() : template.__curLocale();
    }

    Optional<String> lang = Optional.absent();
    if (locale != null) {
        // to conform to rfc5646 and BCP 47
        lang = Optional.of(locale.toString().replace('_', '-'));
    }

    Optional<String> i18nMessage = Optional.absent();
    i18nMessage = messages.get(key, lang, args);

    return i18nMessage.or("");
}