Example usage for java.util Collections singleton

List of usage examples for java.util Collections singleton

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Introduction

In this page you can find the example usage for java.util Collections singleton.

Prototype

public static <T> Set<T> singleton(T o)

Source Link

Document

Returns an immutable set containing only the specified object.

Usage

From source file:de.uniba.wiai.kinf.pw.projects.lillytab.reasoner.ConsistencyInfo.java

public void addCulprits(final IABoxNode<I, L, K, R> node,
        final Collection<? extends IDLTerm<I, L, K, R>> culprits) {
    final IABox<I, L, K, R> abox = node.getABox();
    final TermEntryFactory<I, L, K, R> termEntryFactory = abox.getTermEntryFactory();

    final Collection<TermEntry<I, L, K, R>> culpritEntries = ExtractorCollection.decorate(culprits,
            new Transformer<IDLTerm<I, L, K, R>, TermEntry<I, L, K, R>>() {
                @Override//from   w  ww  .  j  a v  a  2  s  .c o m
                public TermEntry<I, L, K, R> transform(IDLTerm<I, L, K, R> input) {
                    return termEntryFactory.getEntry(node, input);
                }
            });
    addCulpritEntries(abox, Collections.singleton(culpritEntries));
}

From source file:net.shibboleth.idp.oidc.client.userinfo.authn.SpringSecurityAuthenticationTokenFactory.java

/**
 * Build authentication authentication./*from   ww w.  jav  a  2 s  .c o m*/
 *
 * @param profileRequestContext the profile request context
 * @return the authentication
 */
public static Authentication buildAuthentication(final ProfileRequestContext profileRequestContext) {
    final SubjectContext principal = profileRequestContext.getSubcontext(SubjectContext.class);

    if (principal == null || principal.getPrincipalName() == null) {
        throw new OIDCException("No SubjectContext found in the profile request context");
    }

    /**
     * Grab the authentication context class ref and classify it as an authority to be used later
     * by custom token services to generate acr and amr claims.
     *
     * MitreID connect can only work with SimpleGrantedAuthority. So here we are creating specific authority
     * instances first and then converting them to SimpleGrantedAuthority. The role could be parsed later to
     * locate and reconstruct the actual instance.
     */
    final Set<GrantedAuthority> authorities = new LinkedHashSet<>();
    authorities.add(new SimpleGrantedAuthority(OIDCConstants.ROLE_USER));

    final AuthenticationContext authCtx = profileRequestContext.getSubcontext(AuthenticationContext.class);
    if (authCtx != null) {
        LOG.debug("Found an authentication context in the profile request context");

        final RequestedPrincipalContext principalContext = authCtx
                .getSubcontext(RequestedPrincipalContext.class);
        if (principalContext != null && principalContext.getMatchingPrincipal() != null) {
            LOG.debug("Found requested principal context context with matching principal {}",
                    principalContext.getMatchingPrincipal().getName());

            final AuthenticationClassRefAuthority authority = new AuthenticationClassRefAuthority(
                    principalContext.getMatchingPrincipal().getName());

            LOG.debug("Adding authority {}", authority.getAuthority());
            authorities.add(new SimpleGrantedAuthority(authority.toString()));
        }
        if (authCtx.getAuthenticationResult() != null) {
            final AuthenticationMethodRefAuthority authority = new AuthenticationMethodRefAuthority(
                    authCtx.getAuthenticationResult().getAuthenticationFlowId());
            LOG.debug("Adding authority {}", authority.getAuthority());
            authorities.add(new SimpleGrantedAuthority(authority.toString()));
        }
    }

    /**
     * Note that Spring Security loses the details object when it attempts to grab onto the authentication
     * object that is combined, when codes are asking to create access tokens.
     */
    final User user = new User(principal.getPrincipalName(), UUID.randomUUID().toString(),
            Collections.singleton(new SimpleGrantedAuthority(OIDCConstants.ROLE_USER)));

    LOG.debug("Created user details object for {} with authorities {}", user.getUsername(),
            user.getAuthorities());

    final SpringSecurityAuthenticationToken authenticationToken = new SpringSecurityAuthenticationToken(
            profileRequestContext, authorities);
    LOG.debug("Final authentication token authorities are {}", authorities);

    authenticationToken.setAuthenticated(true);
    authenticationToken.setDetails(user);
    return authenticationToken;
}

From source file:de.escalon.hypermedia.spring.sample.test.DummyEventControllerExposed.java

@RequestMapping("/query")
public HttpEntity<Resources<FooResource>> findList(@Input(include = { "offset", "size" }) Pageable pageable,
        @RequestParam(required = false) Integer foo1, @RequestParam(required = false) Integer foo2) {

    FooResource fooResource = new FooResource(pageable);
    fooResource.add(//w  ww  .jav  a  2 s  .c  om
            AffordanceBuilder.linkTo(methodOn(this.getClass()).findList(null, null, null)).withRel("template"));

    return new HttpEntity<Resources<FooResource>>(
            new Resources<FooResource>(Collections.singleton(fooResource)));

}

From source file:com.googlecode.jmxtrans.model.output.kafka.DefaultResultSerializer.java

@Nonnull
@Override//from w w  w . ja va2  s . com
public Collection<String> serialize(Server server, Query query, Result result) throws IOException {
    log.debug("Query result: [{}]", result);
    Object value = result.getValue();
    if (isNumeric(value)) {
        return Collections.singleton(createJsonMessage(server, query, result, result.getValuePath(), value));
    } else {
        log.warn("Unable to submit non-numeric value to Kafka: [{}] from result [{}]", value, result);
        return Collections.emptyList();
    }
}

From source file:org.jasig.services.persondir.support.rule.StringFormatAttributeRule.java

@Override
public Set<IPersonAttributes> evaluate(final Map<String, List<Object>> userInfo) {

    // Assertions.
    if (userInfo == null) {
        final String msg = "Argument 'userInfo' cannot be null.";
        throw new IllegalArgumentException(msg);
    }/*w ww . j  a  v a  2 s. c o m*/
    if (!appliesTo(userInfo)) {
        final String msg = "May not evaluate.  This rule does not apply.";
        throw new IllegalArgumentException(msg);
    }

    final Object[] args = new Object[formatArguments.size()];
    for (int i = 0; i < formatArguments.size(); i++) {
        final String key = formatArguments.get(i);
        final List<Object> values = userInfo.get(key);
        args[i] = values.isEmpty() ? null : values.get(0);
    }

    final String outputAttributeValue = String.format(this.formatString, args);

    final Map<String, List<Object>> rslt = new HashMap<String, List<Object>>();
    rslt.put(this.outputAttribute, Arrays.asList(new Object[] { outputAttributeValue }));

    final String username = this.usernameAttributeProvider.getUsernameFromQuery(userInfo);
    final IPersonAttributes person = new NamedPersonImpl(username, rslt);
    return Collections.singleton(person);

}

From source file:ddf.catalog.registry.transformer.RegistryTransformer.java

@Override
public Metacard transform(InputStream inputStream, String id) throws IOException, CatalogTransformerException {

    MetacardImpl metacard;//from   w  ww.  j ava  2  s. c  o m

    try (FileBackedOutputStream fileBackedOutputStream = new FileBackedOutputStream(1000000)) {

        try {
            IOUtils.copy(inputStream, fileBackedOutputStream);

        } catch (IOException e) {
            throw new CatalogTransformerException(
                    "Unable to transform from CSW RIM Service Record to Metacard. Error reading input stream.",
                    e);
        } finally {
            IOUtils.closeQuietly(inputStream);
        }

        try (InputStream inputStreamCopy = fileBackedOutputStream.asByteSource().openStream()) {
            metacard = (MetacardImpl) unmarshal(inputStreamCopy);
        } catch (ParserException e) {
            throw new CatalogTransformerException(
                    "Unable to transform from CSW RIM Service Record to Metacard. Parser exception caught", e);
        } catch (RegistryConversionException e) {
            throw new CatalogTransformerException(
                    "Unable to transform from CSW RIM Service Record to Metacard. Conversion exception caught",
                    e);
        }

        if (metacard == null) {
            throw new CatalogTransformerException(
                    "Unable to transform from CSW RIM Service Record to Metacard.");
        } else if (StringUtils.isNotEmpty(id)) {
            metacard.setAttribute(Metacard.ID, id);
        }

        String xml = CharStreams
                .toString(fileBackedOutputStream.asByteSource().asCharSource(Charsets.UTF_8).openStream());

        metacard.setAttribute(Metacard.METADATA, xml);
        metacard.setTags(Collections.singleton(RegistryConstants.REGISTRY_TAG));

    } catch (IOException e) {
        throw new CatalogTransformerException(
                "Unable to transform from CSW RIM Service Record to Metacard. Error using file-backed stream.",
                e);
    }

    return metacard;
}

From source file:ca.uhn.fhir.rest.method.SummaryEnumParameter.java

private static Set<SummaryEnum> toCollectionOrNull(SummaryEnum theFromCode) {
    if (theFromCode == null) {
        return null;
    }//  w  w w . j a v  a 2  s  .  c om
    return Collections.singleton(theFromCode);
}

From source file:io.klerch.alexa.state.handler.AlexaSessionStateHandler.java

/**
 * {@inheritDoc}// w  w w .  j  a va 2  s. c om
 */
@Override
public void writeValue(final AlexaStateObject stateObject) throws AlexaStateException {
    Validate.notNull(stateObject, "State object must not be null.");
    writeValues(Collections.singleton(stateObject));
}

From source file:com.qcadoo.mes.integration.efcSimple.IntegrationEnovaViewHook.java

private Set<Long> getSelectedIdsFromForm(final ViewDefinitionState viewDefinitionState) {
    FormComponent form = (FormComponent) viewDefinitionState.getComponentByReference("form");
    Preconditions.checkState(form.getEntityId() != null, "No record");
    return Collections.singleton(form.getEntityId());
}

From source file:com.cloudbees.jenkins.support.impl.AboutJenkins.java

@NonNull
@Override/*from w w  w  .ja  va 2 s  .  c o  m*/
public Set<Permission> getRequiredPermissions() {
    // Was originally READ, but a lot of the details here could be considered sensitive:
    return Collections.singleton(Jenkins.ADMINISTER);
}