Example usage for java.util.concurrent CompletableFuture completedFuture

Introduction

In this page you can find the example usage for java.util.concurrent CompletableFuture completedFuture.

Prototype

public static <U> CompletableFuture<U> completedFuture(U value)

Source Link

Document

Returns a new CompletableFuture that is already completed with the given value.

Usage

From source file:org.apache.james.backends.cassandra.migration.CassandraMigrationServiceTest.java

@Test
public void upgradeToVersionShouldThrowOnMissingVersion() {
    Map<SchemaVersion, Migration> allMigrationClazz = ImmutableMap.<SchemaVersion, Migration>builder()
            .put(OLDER_VERSION, successfulMigration).put(LATEST_VERSION, successfulMigration).build();
    testee = new CassandraMigrationService(schemaVersionDAO, allMigrationClazz, LATEST_VERSION);
    when(schemaVersionDAO.getCurrentSchemaVersion())
            .thenReturn(CompletableFuture.completedFuture(Optional.of(OLDER_VERSION)));

    expectedException.expect(NotImplementedException.class);

    testee.upgradeToVersion(LATEST_VERSION).run();
}

From source file:org.apache.james.backends.cassandra.migration.CassandraMigrationServiceTest.java

@Test
public void upgradeToVersionShouldUpdateIntermediarySuccessfulMigrationsInCaseOfError() {
    try {/*  w  ww.j a v a  2 s.  c  o  m*/
        Map<SchemaVersion, Migration> allMigrationClazz = ImmutableMap.<SchemaVersion, Migration>builder()
                .put(OLDER_VERSION, successfulMigration)
                .put(INTERMEDIARY_VERSION, () -> Migration.Result.PARTIAL)
                .put(LATEST_VERSION, successfulMigration).build();
        testee = new CassandraMigrationService(schemaVersionDAO, allMigrationClazz, LATEST_VERSION);
        when(schemaVersionDAO.getCurrentSchemaVersion())
                .thenReturn(CompletableFuture.completedFuture(Optional.of(OLDER_VERSION)));

        expectedException.expect(RuntimeException.class);

        testee.upgradeToVersion(LATEST_VERSION).run();
    } finally {
        verify(schemaVersionDAO).updateVersion(CURRENT_VERSION);
    }
}

From source file:org.apache.james.blob.memory.MemoryBlobStore.java

@Override
public CompletableFuture<BlobId> save(byte[] data) {
    Preconditions.checkNotNull(data);//  w w  w . j  ava  2s  . c  om
    BlobId blobId = factory.forPayload(data);

    blobs.put(blobId, data);

    return CompletableFuture.completedFuture(blobId);
}

From source file:org.apache.james.blob.memory.MemoryBlobStore.java

@Override
public CompletableFuture<byte[]> readBytes(BlobId blobId) {
    try {/* w  ww .j a  v  a2  s . c o  m*/
        return CompletableFuture.completedFuture(retrieveStoredValue(blobId));
    } catch (ObjectStoreException e) {
        return CompletableFutureUtil.exceptionallyFuture(e);
    }
}

From source file:org.apache.james.jmap.memory.access.MemoryAccessTokenRepository.java

@Override
public CompletableFuture<Void> addToken(String username, AccessToken accessToken) {
    Preconditions.checkNotNull(username);
    Preconditions.checkArgument(!username.isEmpty(), "Username should not be empty");
    Preconditions.checkNotNull(accessToken);
    synchronized (tokensExpirationDates) {
        tokensExpirationDates.put(accessToken, username);
    }/*from w  w  w . jav  a 2 s. c  o  m*/
    return CompletableFuture.completedFuture(null);
}

From source file:org.apache.james.jmap.memory.access.MemoryAccessTokenRepository.java

@Override
public CompletableFuture<Void> removeToken(AccessToken accessToken) {
    Preconditions.checkNotNull(accessToken);
    synchronized (tokensExpirationDates) {
        tokensExpirationDates.remove(accessToken);
    }//from   w  w  w .ja  va 2 s. c o  m
    return CompletableFuture.completedFuture(null);
}

From source file:org.apache.james.jmap.memory.access.MemoryAccessTokenRepository.java

@Override
public CompletableFuture<String> getUsernameFromToken(AccessToken accessToken) throws InvalidAccessToken {
    Preconditions.checkNotNull(accessToken);
    synchronized (tokensExpirationDates) {
        return CompletableFuture.completedFuture(
                Optional.ofNullable(tokensExpirationDates.get(accessToken)).<CompletionException>orElseThrow(
                        () -> new CompletionException(new InvalidAccessToken(accessToken))));
    }//w  ww. j av a 2  s . com
}

From source file:org.apache.james.mailbox.cassandra.mail.AttachmentLoader.java

public CompletableFuture<Stream<SimpleMailboxMessage>> addAttachmentToMessages(
        Stream<Pair<MessageWithoutAttachment, Stream<MessageAttachmentRepresentation>>> messageRepresentations,
        MessageMapper.FetchType fetchType) {

    if (fetchType == MessageMapper.FetchType.Body || fetchType == MessageMapper.FetchType.Full) {
        return FluentFutureStream
                .<SimpleMailboxMessage>of(messageRepresentations
                        .map(pair -> getAttachments(pair.getRight().collect(Guavate.toImmutableList()))
                                .thenApply(attachments -> pair.getLeft().toMailboxMessage(attachments))))
                .completableFuture();//w  w w . ja  v  a2  s  . c o m
    } else {
        return CompletableFuture.completedFuture(
                messageRepresentations.map(pair -> pair.getLeft().toMailboxMessage(ImmutableList.of())));
    }
}

From source file:org.apache.james.mailbox.cassandra.mail.AttachmentLoader.java

@VisibleForTesting
CompletableFuture<Map<AttachmentId, Attachment>> attachmentsById(Set<AttachmentId> attachmentIds) {
    if (attachmentIds.isEmpty()) {
        return CompletableFuture.completedFuture(ImmutableMap.of());
    }/* w  w  w .jav  a 2 s  .co  m*/
    return attachmentMapper.getAttachmentsAsFuture(attachmentIds).thenApply(attachments -> attachments.stream()
            .collect(Guavate.toImmutableMap(Attachment::getAttachmentId, Function.identity())));
}

From source file:org.apache.james.mailbox.cassandra.mail.CassandraMailboxMapper.java

@Override
public Mailbox findMailboxByPath(MailboxPath path) throws MailboxException {
    try {//w  w  w.  j a  v a  2  s . c  om
        return mailboxPathDAO.retrieveId(path).thenCompose(cassandraIdOptional -> cassandraIdOptional
                .map(CassandraMailboxPathDAO.CassandraIdAndPath::getCassandraId)
                .map(mailboxDAO::retrieveMailbox).orElse(CompletableFuture.completedFuture(Optional.empty())))
                .join().orElseThrow(() -> new MailboxNotFoundException(path));
    } catch (CompletionException e) {
        if (e.getCause() instanceof InvalidQueryException) {
            if (StringUtils.containsIgnoreCase(e.getCause().getMessage(), VALUES_MAY_NOT_BE_LARGER_THAN_64_K)) {
                throw new TooLongMailboxNameException("too long mailbox name");
            }
            throw new MailboxException("It has error with cassandra storage", e.getCause());
        }
        throw e;
    }
}