Example usage for java.util Collections EMPTY

Introduction

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

Prototype

Set EMPTY_SET

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Document

The empty set (immutable).

Usage

From source file:org.slc.sli.api.resources.BulkExtractTest.java

@Test(expected = AccessDeniedException.class)
public void testUserNotInLEA() throws Exception {
    injector.setEducatorContext();/* w w  w .j  av a  2 s.  c  om*/
    // No BE Field
    Mockito.when(mockValidator.validate(eq(EntityNames.EDUCATION_ORGANIZATION), Mockito.any(Set.class)))
            .thenReturn(Collections.EMPTY_SET);
    bulkExtract.getEdOrgExtract(CONTEXT, req, "BLEEP");
}

From source file:org.talend.core.hadoop.version.custom.HadoopCustomVersionDefineDialog.java

private Set<LibraryFile> getSelectedTypeLibList() {
    ECustomVersionGroup selectedType = getSelectedType();
    if (selectedType != null) {
        return libMap.get(selectedType.getName());
    }//from  w  ww  .j  a va  2 s.c  o m

    return Collections.EMPTY_SET;
}

From source file:org.forgerock.openam.authentication.modules.impersonation.ImpersonationModule.java

/**
 * Gets the user's AMIdentity from LDAP.
 *
 * @param userName The user's name.//from  w ww.  j av a  2s .c o m
 * @return The AMIdentity for the user.
 */
public AMIdentity getIdentity(String userName) {
    AMIdentity amIdentity = null;
    AMIdentityRepository amIdRepo = getAMIdentityRepository(getRequestOrg());

    IdSearchControl idsc = new IdSearchControl();
    idsc.setAllReturnAttributes(true);
    Set<AMIdentity> results = Collections.EMPTY_SET;

    try {
        idsc.setMaxResults(0);
        IdSearchResults searchResults = amIdRepo.searchIdentities(IdType.USER, userName, idsc);
        if (searchResults != null) {
            results = searchResults.getSearchResults();
            System.out.println("results: " + results);
        }

        if (results.isEmpty()) {
            throw new IdRepoException("getIdentity : User " + userName + " is not found");
        } else if (results.size() > 1) {
            throw new IdRepoException("getIdentity : More than one user found for the userName " + userName);
        }

        amIdentity = results.iterator().next();
    } catch (IdRepoException e) {
        debug.error("Error searching Identities with username : " + userName, e);
    } catch (SSOException e) {
        debug.error("Module exception : ", e);
    }

    return amIdentity;
}

From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.ServletHandler.java

public Set getResourcePaths(String uriInContext) {
    try {/*from   w ww  .  ja  va 2s  .co m*/
        uriInContext = URI.canonicalPath(uriInContext);
        if (uriInContext == null)
            return Collections.EMPTY_SET;
        Resource resource = getHttpContext().getResource(uriInContext);
        if (resource == null || !resource.isDirectory())
            return Collections.EMPTY_SET;
        String[] contents = resource.list();
        if (contents == null || contents.length == 0)
            return Collections.EMPTY_SET;
        HashSet set = new HashSet(contents.length * 2);
        for (int i = 0; i < contents.length; i++)
            set.add(URI.addPaths(uriInContext, contents[i]));
        return set;
    } catch (Exception e) {
        e.printStackTrace();
        LogSupport.ignore(log, e);
    }

    return Collections.EMPTY_SET;
}

From source file:org.apache.jackrabbit.oak.plugins.index.lucene.LucenePropertyIndexTest.java

@Test
public void nodeNameViaPropDefinition() throws Exception {
    //make index/*from  w  w  w .j  a  va 2  s  .co m*/
    Tree idx = createIndex("test1", Collections.EMPTY_SET);
    useV2(idx);
    Tree rules = idx.addChild(LuceneIndexConstants.INDEX_RULES);
    rules.setOrderableChildren(true);
    Tree rule = rules.addChild("nt:base");
    Tree propDef = rule.addChild(PROP_NODE).addChild("nodeName");
    propDef.setProperty(PROP_NAME, PROPDEF_PROP_NODE_NAME);
    propDef.setProperty(PROP_PROPERTY_INDEX, true);
    root.commit();

    //add content
    Tree test = root.getTree("/");
    test.addChild("foo");
    test.addChild("camelCase");
    test.addChild("test").addChild("bar");
    root.commit();

    //test
    String propabQuery = "select [jcr:path] from [nt:base] where LOCALNAME() = 'foo'";
    assertThat(explain(propabQuery), containsString("lucene:test1(/oak:index/test1) :nodeName:foo"));
    assertQuery(propabQuery, asList("/foo"));
    assertQuery("select [jcr:path] from [nt:base] where LOCALNAME() = 'bar'", asList("/test/bar"));
    assertQuery("select [jcr:path] from [nt:base] where LOCALNAME() LIKE 'foo'", asList("/foo"));
    assertQuery("select [jcr:path] from [nt:base] where LOCALNAME() LIKE 'camel%'", asList("/camelCase"));

    assertQuery("select [jcr:path] from [nt:base] where NAME() = 'bar'", asList("/test/bar"));
    assertQuery("select [jcr:path] from [nt:base] where NAME() LIKE 'foo'", asList("/foo"));
    assertQuery("select [jcr:path] from [nt:base] where NAME() LIKE 'camel%'", asList("/camelCase"));
}

From source file:org.red5.server.scope.Scope.java

/**
 * Return set of service handler names. Removing entries from the set unregisters the corresponding service handler.
 * //from ww  w  .jav a2s.co  m
 * @return Set of service handler names
 */
@SuppressWarnings("unchecked")
public Set<String> getServiceHandlerNames() {
    Map<String, Object> serviceHandlers = getServiceHandlers(false);
    if (serviceHandlers == null) {
        return Collections.EMPTY_SET;
    }
    return serviceHandlers.keySet();
}

From source file:org.apache.openjpa.jdbc.sql.SelectImpl.java

public Collection getTableAliases() {
    return (_tables == null) ? Collections.EMPTY_SET : _tables.values();
}

From source file:org.talend.updates.runtime.model.P2ExtraFeature.java

/**
 * add the feauture repo URI to the p2 engine and return the P2 installable units by looking at each repo
 * sequentially./*from w ww.  ja va2s.c om*/
 *
 * @param agent
 * @return the metadata repo to install anything in it.
 * @throws URISyntaxException if the feature remote p2 site uri is bad
 * @throws OperationCanceledException if installation was canceled
 * @throws ProvisionException if p2 repository could not be loaded
 */
protected Set<IInstallableUnit> getInstallableIU(IProvisioningAgent agent, List<URI> allRepoUris,
        IProgressMonitor progress) throws URISyntaxException, ProvisionException, OperationCanceledException {

    if (allRepoUris.isEmpty()) {// if repo list is empty use the default URI
        allRepoUris.add(getP2RepositoryURI());
    }
    SubMonitor subMonitor = SubMonitor.convert(progress, allRepoUris.size());
    subMonitor.setTaskName(Messages.getString("ExtraFeature.searching.talend.features.label", getName())); //$NON-NLS-1$
    // get the repository managers and add our repository
    IMetadataRepositoryManager metadataManager = (IMetadataRepositoryManager) agent
            .getService(IMetadataRepositoryManager.SERVICE_NAME);
    IArtifactRepositoryManager artifactManager = (IArtifactRepositoryManager) agent
            .getService(IArtifactRepositoryManager.SERVICE_NAME);

    // create the feature query
    IQuery<IInstallableUnit> iuQuery = QueryUtil.createLatestQuery(QueryUtil.createIUQuery(getP2IuId()));

    // remove existing repositories
    for (URI existingRepUri : metadataManager.getKnownRepositories(IRepositoryManager.REPOSITORIES_ALL)) {
        metadataManager.removeRepository(existingRepUri);
    }
    for (URI existingRepUri : artifactManager.getKnownRepositories(IRepositoryManager.REPOSITORIES_ALL)) {
        metadataManager.removeRepository(existingRepUri);
    }

    for (URI repoUri : allRepoUris) {
        metadataManager.addRepository(repoUri);
        artifactManager.addRepository(repoUri);
    }
    if (subMonitor.isCanceled()) {
        return Collections.EMPTY_SET;
    }
    return metadataManager.query(iuQuery, progress).toUnmodifiableSet();
}

From source file:org.eclipse.smarthome.io.rest.core.internal.thing.ThingResource.java

@GET
@RolesAllowed({ Role.USER, Role.ADMIN })
@Path("/{thingUID}/config/status")
@Produces(MediaType.APPLICATION_JSON)// w  w w .j  av a  2  s.c  o m
@ApiOperation(value = "Gets thing's config status.")
@ApiResponses(value = { @ApiResponse(code = 200, message = "OK", response = String.class),
        @ApiResponse(code = 404, message = "Thing not found.") })
public Response getConfigStatus(@HeaderParam(HttpHeaders.ACCEPT_LANGUAGE) String language,
        @PathParam("thingUID") @ApiParam(value = "thing") String thingUID) throws IOException {
    ThingUID thingUIDObject = new ThingUID(thingUID);

    // Check if the Thing exists, 404 if not
    Thing thing = thingRegistry.get(thingUIDObject);
    if (null == thing) {
        logger.info("Received HTTP GET request for thing config status at '{}' for the unknown thing '{}'.",
                uriInfo.getPath(), thingUID);
        return getThingNotFoundResponse(thingUID);
    }

    ConfigStatusInfo info = configStatusService.getConfigStatus(thingUID, localeService.getLocale(language));
    if (info != null) {
        return Response.ok().entity(info.getConfigStatusMessages()).build();
    }
    return Response.ok().entity(Collections.EMPTY_SET).build();
}

From source file:de.csw.expertfinder.expertise.ExpertiseModel.java

/**
 * Returns all names of authors who contributed to the given topic.
 * @param topicName the name of the topic
 * @return a list containing all names of authors who contributed to the given topic.
 *///from  ww w.j  a  v  a 2 s  .  co m
@SuppressWarnings("unchecked")
public Set<String> getAuthorsForTopic(String topicName) {

    Set<String> result = new TreeSet<String>();

    OntClass clazz = OntologyIndex.get().getOntClass(topicName);
    if (clazz == null) {
        return Collections.EMPTY_SET;
    }

    String topicURI = clazz.getURI();

    persistenceStore.beginTransaction();

    Concept topic = persistenceStore.getConcept(topicURI);

    List<AuthorContribution> contributions = persistenceStore.getCachedAuthorContributions(topic);

    persistenceStore.endTransaction();

    if (!contributions.isEmpty()) {
        for (AuthorContribution authorContribution : contributions) {
            String authorName = authorContribution.getAuthor().getName();
            result.add(authorName);
        }
        return result;
    }

    persistenceStore.beginTransaction();
    List<Author> directAuthors = persistenceStore.getAuthorsWhoContributedToTopic(topic);
    List<Author> indirectAuthors = persistenceStore.getAuthorsWhoIndirectlyContributedToTopic(topic);
    persistenceStore.endTransaction();

    for (Author author : directAuthors) {
        result.add(author.getName());
    }

    for (Author author : indirectAuthors) {
        result.add(author.getName());
    }

    return result;
}

Example usage for java.util Collections EMPTY_SET

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