Examples with Database com.facebook.presto.hive.metastore.Database used on opensource projects

Example 1 with Database

use of com.facebook.presto.hive.metastore.Database in project presto by prestodb.

the class FileHiveMetastore method getAllTables.

@Override
public synchronized Optional<List<String>> getAllTables(String databaseName) {
    requireNonNull(databaseName, "databaseName is null");
    Optional<Database> database = getDatabase(databaseName);
    if (!database.isPresent()) {
        return Optional.empty();
    }
    Path databaseMetadataDirectory = getDatabaseMetadataDirectory(databaseName);
    List<String> tables = getChildSchemaDirectories(databaseMetadataDirectory).stream().map(Path::getName).collect(toList());
    return Optional.of(ImmutableList.copyOf(tables));
}

Example 2 with Database

use of com.facebook.presto.hive.metastore.Database in project presto by prestodb.

the class HiveMetadata method createSchema.

@Override
public void createSchema(ConnectorSession session, String schemaName, Map<String, Object> properties) {
    Optional<String> location = HiveSchemaProperties.getLocation(properties).map(locationUri -> {
        try {
            hdfsEnvironment.getFileSystem(session.getUser(), new Path(locationUri));
        } catch (IOException e) {
            throw new PrestoException(INVALID_SCHEMA_PROPERTY, "Invalid location URI: " + locationUri, e);
        }
        return locationUri;
    });
    Database database = Database.builder().setDatabaseName(schemaName).setLocation(location).setOwnerType(USER).setOwnerName(session.getUser()).build();
    metastore.createDatabase(database);
}

Example 3 with Database

use of com.facebook.presto.hive.metastore.Database in project presto by prestodb.

the class FileHiveMetastore method isDatabaseOwner.

private boolean isDatabaseOwner(String user, String databaseName) {
    // all users are "owners" of the default database
    if (DEFAULT_DATABASE_NAME.equalsIgnoreCase(databaseName)) {
        return true;
    }
    Optional<Database> databaseMetadata = getDatabase(databaseName);
    if (!databaseMetadata.isPresent()) {
        return false;
    }
    Database database = databaseMetadata.get();
    // a database can be owned by a user or role
    if (database.getOwnerType() == USER && user.equals(database.getOwnerName())) {
        return true;
    }
    if (database.getOwnerType() == ROLE && getRoles(user).contains(database.getOwnerName())) {
        return true;
    }
    return false;
}

Example 4 with Database

use of com.facebook.presto.hive.metastore.Database in project presto by prestodb.

the class AbstractTestHiveClientS3 method doCreateTable.

private void doCreateTable(SchemaTableName tableName, HiveStorageFormat storageFormat) throws Exception {
    List<ColumnMetadata> columns = ImmutableList.<ColumnMetadata>builder().add(new ColumnMetadata("id", BIGINT)).build();
    MaterializedResult data = MaterializedResult.resultBuilder(newSession(), BIGINT).row(1L).row(3L).row(2L).build();
    try (Transaction transaction = newTransaction()) {
        ConnectorMetadata metadata = transaction.getMetadata();
        ConnectorSession session = newSession();
        // begin creating the table
        ConnectorTableMetadata tableMetadata = new ConnectorTableMetadata(tableName, columns, createTableProperties(storageFormat));
        ConnectorOutputTableHandle outputHandle = metadata.beginCreateTable(session, tableMetadata, Optional.empty());
        // write the records
        ConnectorPageSink sink = pageSinkProvider.createPageSink(transaction.getTransactionHandle(), session, outputHandle);
        sink.appendPage(data.toPage());
        Collection<Slice> fragments = getFutureValue(sink.finish());
        // commit the table
        metadata.finishCreateTable(session, outputHandle, fragments);
        transaction.commit();
        // Hack to work around the metastore not being configured for S3.
        // The metastore tries to validate the location when creating the
        // table, which fails without explicit configuration for S3.
        // We work around that by using a dummy location when creating the
        // table and update it here to the correct S3 location.
        metastoreClient.updateTableLocation(database, tableName.getTableName(), locationService.writePathRoot(((HiveOutputTableHandle) outputHandle).getLocationHandle()).get().toString());
    }
    try (Transaction transaction = newTransaction()) {
        ConnectorMetadata metadata = transaction.getMetadata();
        ConnectorSession session = newSession();
        // load the new table
        ConnectorTableHandle tableHandle = getTableHandle(metadata, tableName);
        List<ColumnHandle> columnHandles = filterNonHiddenColumnHandles(metadata.getColumnHandles(session, tableHandle).values());
        // verify the metadata
        ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(session, getTableHandle(metadata, tableName));
        assertEquals(filterNonHiddenColumnMetadata(tableMetadata.getColumns()), columns);
        // verify the data
        List<ConnectorTableLayoutResult> tableLayoutResults = metadata.getTableLayouts(session, tableHandle, new Constraint<>(TupleDomain.all(), bindings -> true), Optional.empty());
        HiveTableLayoutHandle layoutHandle = (HiveTableLayoutHandle) getOnlyElement(tableLayoutResults).getTableLayout().getHandle();
        assertEquals(layoutHandle.getPartitions().get().size(), 1);
        ConnectorSplitSource splitSource = splitManager.getSplits(transaction.getTransactionHandle(), session, layoutHandle);
        ConnectorSplit split = getOnlyElement(getAllSplits(splitSource));
        try (ConnectorPageSource pageSource = pageSourceProvider.createPageSource(transaction.getTransactionHandle(), session, split, columnHandles)) {
            MaterializedResult result = materializeSourceDataStream(session, pageSource, getTypes(columnHandles));
            assertEqualsIgnoreOrder(result.getMaterializedRows(), data.getMaterializedRows());
        }
    }
}