Example usage for java.util Set isEmpty

List of usage examples for java.util Set isEmpty

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Introduction

In this page you can find the example usage for java.util Set isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this set contains no elements.

Usage

From source file:se.uu.it.cs.recsys.constraint.builder.CreditDomainBuilder.java

/**
 *
 * @param idSet//from ww  w  . j ava 2s  .  co m
 * @return the mapping between credit and the constraint set domain for the
 * input courses ids from planned years
 */
public Map<CourseCredit, SetDomain> getCreditAndIdSetDomainMappingFor(Set<Integer> idSet) {
    if (idSet == null || idSet.isEmpty()) {
        LOGGER.warn("Does not make sense to put null or empty set, right?");
        return Collections.EMPTY_MAP;
    }

    Map<CourseCredit, SetDomain> creditAndDomain = new HashMap<>();

    Map<CourseCredit, Set<Integer>> levelAndIds = getCreditAndIdSetMappingFor(idSet);

    levelAndIds.entrySet().stream().forEach((entry) -> {
        creditAndDomain.put(entry.getKey(), DomainBuilder.createDomain(entry.getValue()));
    });

    return creditAndDomain;
}

From source file:se.uu.it.cs.recsys.service.preference.SameCourseFinder.java

/**
 * Gets the info about course id collection representing the same course.
 * E.g a course with code "1DL301" can be planned in year 2015 and 2016 and
 * it will have different ids in DB in this case.
 *
 * @param scheduleInfo the info regarding which years are planned, e.g 2015;
 * non-empty input.//from  w  ww  . ja  va  2  s. c o  m
 * @return non-null collection regarding id set for same course.
 * @throws IllegalArgumentException if input is null or empty
 */
public Set<Set<Integer>> getIdCollectionForSameCourse(Set<CourseSchedule> scheduleInfo) {

    if (scheduleInfo == null || scheduleInfo.isEmpty()) {
        throw new IllegalArgumentException("Schedule input must be non-empty");
    }

    List<Course> allCourses = this.courseRepository.findAll();

    // find the first plan year, e.g 2015
    int firstPlanYear = scheduleInfo.stream().sorted(
            (schedule1, schedule2) -> Short.compare(schedule1.getTaughtYear(), schedule2.getTaughtYear()))
            .findFirst().get().getTaughtYear();

    // only get the course ids for plan year, e.g 2015, 2016
    Set<Course> planYearCourseSet = allCourses.stream()
            .filter(course -> course.getTaughtYear() >= firstPlanYear).collect(Collectors.toSet());

    Map<String, Set<Integer>> codeToIdSet = CourseFlattener.flattenToCodeAndIdSet(planYearCourseSet);

    Set<Set<Integer>> idCollectionForSameCourse = new HashSet<>();

    codeToIdSet.entrySet().stream().filter(entry -> entry.getValue().size() > 1).forEach(entry -> {
        idCollectionForSameCourse.add(entry.getValue());
    });

    return idCollectionForSameCourse;
}

From source file:edu.cornell.mannlib.vitro.webapp.modelaccess.ontmodels.MaskingOntModelCache.java

private void checkForMissingNamedModels() {
    Set<String> missingModelNames = new HashSet<>(this.maskingNames);
    missingModelNames.removeAll(maskingCache.getModelNames());
    if (!missingModelNames.isEmpty()) {
        log.warn("Specifed models do not exist in the masking cache: " + missingModelNames);
        maskingNames.removeAll(missingModelNames);
    }//from   w  ww  . ja v a  2  s.  co m
}

From source file:net.camelpe.extension.camel.spi.CdiRegistry.java

/**
 * @see org.apache.camel.spi.Registry#lookup(java.lang.String)
 *//*from  ww  w .j a v a 2 s.co m*/
@Override
public Object lookup(final String name) {
    Validate.notEmpty(name, "name");
    getLog().trace("Looking up bean using name = [{}] in CDI registry ...", name);

    final Set<Bean<?>> beans = getDelegate().getBeans(name);
    if (beans.isEmpty()) {
        getLog().debug("Found no bean matching name = [{}] in CDI registry.", name);
        return null;
    }
    if (beans.size() > 1) {
        throw new IllegalStateException(
                "Expected to find exactly one bean having name [" + name + "], but got [" + beans.size() + "]");
    }
    final Bean<?> bean = beans.iterator().next();
    getLog().debug("Found bean [{}] matching name = [{}] in CDI registry.", bean, name);

    final CreationalContext<?> creationalContext = getDelegate().createCreationalContext(null);

    return getDelegate().getReference(bean, bean.getBeanClass(), creationalContext);
}

From source file:com.github.jmnarloch.spring.jaxrs.client.support.JaxRsClientClassPathScanner.java

/**
 * {@inheritDoc}//from ww  w  .j av a2 s. c o  m
 */
@Override
protected Set<BeanDefinitionHolder> doScan(String... basePackages) {

    final Set<BeanDefinitionHolder> beanDefinitions = super.doScan(basePackages);

    if (!beanDefinitions.isEmpty()) {
        processBeanDefinitions(beanDefinitions);
    }

    return beanDefinitions;
}

From source file:org.apache.niolex.config.ctrl.LoginController.java

@RequestMapping(method = RequestMethod.POST)
public @ResponseBody Map<String, ? extends Object> create(@ModelAttribute LoginInfo info,
        HttpServletRequest req) {//ww w.  j  a va 2s.  c  om
    Set<ConstraintViolation<LoginInfo>> failures = validator.validate(info);
    if (!failures.isEmpty()) {
        return Collections.singletonMap("msg", failures.iterator().next().getMessage());
    } else {
        CenterConnector updater = null;
        try {
            updater = new CenterConnector(serverAddress);
            String res = updater.subscribeAuthInfo(info.getUsername(), info.getPassword());
            if (!res.startsWith("SUCC")) {
                updater.stop();
                return Collections.singletonMap("msg", "???");
            } else {
                // Attach the updater to session.
                HttpSession sess = req.getSession();
                sess.setAttribute("login_cli", updater);
                // Auth success.
                return Collections.singletonMap("msg", "SUCCESS");
            }
        } catch (Exception e) {
            LOG.error("Error occured when connect to config center.", e);
            if (updater != null) {
                updater.stop();
            }
            return Collections.singletonMap("msg", "?");
        }
    }
}

From source file:com.github.fge.jsonschema.keyword.validator.draftv3.PropertiesValidator.java

@Override
public void validate(final Processor<FullData, FullData> processor, final ProcessingReport report,
        final MessageBundle bundle, final FullData data) throws ProcessingException {
    final Set<String> set = Sets.newLinkedHashSet(required);
    set.removeAll(Sets.newHashSet(data.getInstance().getNode().fieldNames()));

    if (!set.isEmpty())
        report.error(newMsg(data, bundle, "err.common.object.missingMembers").put("required", required)
                .putArgument("missing", toArrayNode(set)));
}

From source file:net.camelpe.extension.camel.spi.CdiRegistry.java

/**
 * @see org.apache.camel.spi.Registry#lookupByType(java.lang.Class)
 *///from w  ww  .  jav  a 2  s.  c om
@Override
public <T> Map<String, T> lookupByType(final Class<T> type) {
    Validate.notNull(type, "type");
    getLog().trace("Looking up all beans having expected type = [{}] in CDI registry ...", type.getName());

    final Set<Bean<?>> beans = getDelegate().getBeans(type);
    if (beans.isEmpty()) {
        getLog().debug("Found no beans having expected type = [{}] in CDI registry.", type.getName());

        return Collections.emptyMap();
    }
    getLog().debug("Found [{}] beans having expected type = [{}] in CDI registry.",
            Integer.valueOf(beans.size()), type.getName());

    final Map<String, T> beansByName = new HashMap<String, T>(beans.size());
    final CreationalContext<?> creationalContext = getDelegate().createCreationalContext(null);
    for (final Bean<?> bean : beans) {
        beansByName.put(bean.getName(), type.cast(getDelegate().getReference(bean, type, creationalContext)));
    }

    return beansByName;
}

From source file:com.github.rinde.rinsim.core.model.pdp.RandomVehicle.java

@Override
protected void tickImpl(TimeLapse time) {
    if (!time.hasTimeLeft()) {
        return;/*from w w w.j  a v a  2s.  com*/
    }
    if (!target.isPresent()) {
        target = findTarget();
    }

    if (target.isPresent()) {
        if (pm.get().containerContains(this, target.get())) {
            if (rm.get().getPosition(this).equals(target.get().getDeliveryLocation())) {
                pm.get().deliver(this, target.get(), time);
            } else {
                rm.get().moveTo(this, target.get().getDeliveryLocation(), time);
            }
        } else {
            if (pm.get().getParcelState(target.get()) != ParcelState.AVAILABLE) {
                // somebody got there first
                target = Optional.absent();
            } else if (rm.get().equalPosition(this, target.get())) {
                pm.get().pickup(this, target.get(), time);
            } else {
                rm.get().moveTo(this, target.get(), time);
            }
        }
    } else {
        final Set<Depot> depots = rm.get().getObjectsOfType(Depot.class);
        if (!depots.isEmpty()) {
            rm.get().moveTo(this, depots.iterator().next(), time);
        }
    }
}

From source file:com.google.api.tools.framework.importers.swagger.TopLevelBuilder.java

private void setServiceName(Service.Builder serviceBuilder, List<SwaggerFile> swaggerFiles, String defaultName)
        throws SwaggerConversionException {
    String serviceName = defaultName; // Try explicitly provided service name first.
    if (Strings.isNullOrEmpty(serviceName)) {
        Set<String> uniqueSwaggerHostNames = getSwaggerHosts(swaggerFiles);
        if (uniqueSwaggerHostNames.isEmpty()) {
            throw new SwaggerConversionException(
                    "Service name must be provided either explicitly or in Swagger 'host' value.");
        } else if (uniqueSwaggerHostNames.size() > 1) {
            throw new SwaggerConversionException(String.format(
                    "Different 'host' values cannot be set in multiple Swagger files, " + "found Hosts: {%s}",
                    Joiner.on(", ").join(uniqueSwaggerHostNames)));
        } else {/*from   www. ja v a2s.  c  o m*/
            serviceName = Iterables.getOnlyElement(uniqueSwaggerHostNames);
        }
    }
    serviceBuilder.setName(serviceName);
}