| // +build go1.8 |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package avatica |
| |
| import ( |
| "context" |
| "database/sql" |
| "database/sql/driver" |
| "errors" |
| "fmt" |
| ) |
| |
| func (c *conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) { |
| |
| if opts.ReadOnly { |
| return nil, errors.New("Read-only transactions are not supported") |
| } |
| |
| var isolation isoLevel |
| |
| switch sql.IsolationLevel(opts.Isolation) { |
| case sql.LevelDefault: |
| isolation = isolationUseCurrent |
| case sql.LevelReadUncommitted: |
| isolation = isolationReadUncommitted |
| case sql.LevelReadCommitted: |
| isolation = isolationReadComitted |
| case sql.LevelWriteCommitted: |
| return nil, errors.New("LevelWriteCommitted isolation level is not supported") |
| case sql.LevelRepeatableRead: |
| isolation = isolationRepeatableRead |
| case sql.LevelSnapshot: |
| return nil, errors.New("LevelSnapshot isolation level is not supported") |
| case sql.LevelSerializable: |
| isolation = isolationSerializable |
| case sql.LevelLinearizable: |
| return nil, errors.New("LevelLinearizable isolation level is not supported") |
| default: |
| return nil, fmt.Errorf("Unsupported transaction isolation level: %d", opts.Isolation) |
| } |
| |
| return c.begin(ctx, isolation) |
| } |
| |
| func (c *conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) { |
| return c.prepare(ctx, query) |
| } |
| |
| func (c *conn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) { |
| list, err := driverNamedValueToNamedValue(args) |
| |
| if err != nil { |
| return nil, fmt.Errorf("could not execute statement: %s", err) |
| } |
| |
| return c.exec(ctx, query, list) |
| } |
| |
| func (c *conn) Ping(ctx context.Context) error { |
| |
| _, err := c.ExecContext(ctx, c.adapter.GetPingStatement(), []driver.NamedValue{}) |
| |
| if err != nil { |
| return fmt.Errorf("Error pinging database: %s", err) |
| } |
| |
| return nil |
| } |
| |
| func (c *conn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) { |
| list, err := driverNamedValueToNamedValue(args) |
| |
| if err != nil { |
| return nil, fmt.Errorf("could not execute query: %s", err) |
| } |
| |
| return c.query(ctx, query, list) |
| } |