Examples with Session com.facebook.presto.Session used on opensource projects

Example 31 with Session

use of com.facebook.presto.Session in project presto by prestodb.

the class TestAtopSecurity method testAdminCanRead.

@Test
public void testAdminCanRead() {
    Session admin = getSession("admin");
    queryRunner.execute(admin, "SELECT * FROM disks");
}

Example 32 with Session

use of com.facebook.presto.Session in project presto by prestodb.

the class TestAtopSecurity method testNonAdminCannotRead.

@Test(expectedExceptions = AccessDeniedException.class)
public void testNonAdminCannotRead() {
    Session bob = getSession("bob");
    queryRunner.execute(bob, "SELECT * FROM disks");
}

Example 33 with Session

use of com.facebook.presto.Session in project presto by prestodb.

the class RenameColumnTask method execute.

@Override
public ListenableFuture<?> execute(RenameColumn statement, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, QueryStateMachine stateMachine, List<Expression> parameters) {
    Session session = stateMachine.getSession();
    QualifiedObjectName tableName = createQualifiedObjectName(session, statement, statement.getTable());
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableName);
    String source = statement.getSource().toLowerCase(ENGLISH);
    String target = statement.getTarget().toLowerCase(ENGLISH);
    if (!tableHandle.isPresent()) {
        throw new SemanticException(MISSING_TABLE, statement, "Table '%s' does not exist", tableName);
    }
    accessControl.checkCanRenameColumn(session.getRequiredTransactionId(), session.getIdentity(), tableName);
    Map<String, ColumnHandle> columnHandles = metadata.getColumnHandles(session, tableHandle.get());
    if (!columnHandles.containsKey(source)) {
        throw new SemanticException(MISSING_COLUMN, statement, "Column '%s' does not exist", source);
    }
    if (columnHandles.containsKey(target)) {
        throw new SemanticException(COLUMN_ALREADY_EXISTS, statement, "Column '%s' already exists", target);
    }
    metadata.renameColumn(session, tableHandle.get(), columnHandles.get(source), target);
    return immediateFuture(null);
}

Example 34 with Session

use of com.facebook.presto.Session in project presto by prestodb.

the class ColumnJdbcTable method cursor.

@Override
public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession connectorSession, TupleDomain<Integer> constraint) {
    Session session = toSession(transactionHandle, connectorSession);
    Optional<String> catalogFilter = stringFilter(constraint, 0);
    Optional<String> schemaFilter = stringFilter(constraint, 1);
    Optional<String> tableFilter = stringFilter(constraint, 2);
    Builder table = InMemoryRecordSet.builder(METADATA);
    for (String catalog : filter(listCatalogs(session, metadata, accessControl).keySet(), catalogFilter)) {
        QualifiedTablePrefix prefix = FilterUtil.tablePrefix(catalog, schemaFilter, tableFilter);
        for (Entry<SchemaTableName, List<ColumnMetadata>> entry : listTableColumns(session, metadata, accessControl, prefix).entrySet()) {
            addColumnRows(table, catalog, entry.getKey(), entry.getValue());
        }
    }
    return table.build().cursor();
}

Example 35 with Session

use of com.facebook.presto.Session in project presto by prestodb.

the class SchemaJdbcTable method cursor.

@Override
public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession connectorSession, TupleDomain<Integer> constraint) {
    Session session = toSession(transactionHandle, connectorSession);
    Optional<String> catalogFilter = FilterUtil.stringFilter(constraint, 1);
    Builder table = InMemoryRecordSet.builder(METADATA);
    for (String catalog : filter(listCatalogs(session, metadata, accessControl).keySet(), catalogFilter)) {
        for (String schema : listSchemas(session, metadata, accessControl, catalog)) {
            table.addRow(schema, catalog);
        }
    }
    return table.build().cursor();
}