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100 lines
3.3 KiB
100 lines
3.3 KiB
//
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// DISCLAIMER
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//
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// Copyright 2017 ArangoDB GmbH, Cologne, Germany
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Copyright holder is ArangoDB GmbH, Cologne, Germany
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//
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// Author Lars Maier
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//
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package driver
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import (
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"context"
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"path"
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)
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type beginTransactionRequest struct {
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WaitForSync bool `json:"waitForSync,omitempty"`
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AllowImplicit bool `json:"allowImplicit,omitempty"`
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LockTimeout float64 `json:"lockTimeout,omitempty"`
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MaxTransactionSize uint64 `json:"maxTransactionSize,omitempty"`
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Collections TransactionCollections `json:"collections,omitempty"`
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}
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func (d *database) BeginTransaction(ctx context.Context, cols TransactionCollections, opts *BeginTransactionOptions) (TransactionID, error) {
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req, err := d.conn.NewRequest("POST", path.Join(d.relPath(), "_api/transaction/begin"))
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if err != nil {
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return "", WithStack(err)
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}
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var reqBody beginTransactionRequest
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if opts != nil {
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reqBody.WaitForSync = opts.WaitForSync
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reqBody.AllowImplicit = opts.AllowImplicit
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reqBody.LockTimeout = opts.LockTimeout.Seconds()
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}
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reqBody.Collections = cols
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if _, err := req.SetBody(reqBody); err != nil {
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return "", WithStack(err)
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}
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resp, err := d.conn.Do(ctx, req)
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if err != nil {
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return "", WithStack(err)
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}
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if err := resp.CheckStatus(201); err != nil {
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return "", WithStack(err)
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}
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var result struct {
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TransactionID TransactionID `json:"id,omitempty"`
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}
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if err := resp.ParseBody("result", &result); err != nil {
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return "", WithStack(err)
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}
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return result.TransactionID, nil
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}
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func (d *database) requestForTransaction(ctx context.Context, tid TransactionID, method string) (TransactionStatusRecord, error) {
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req, err := d.conn.NewRequest(method, path.Join(d.relPath(), "_api/transaction/", string(tid)))
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if err != nil {
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return TransactionStatusRecord{}, WithStack(err)
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}
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resp, err := d.conn.Do(ctx, req)
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if err != nil {
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return TransactionStatusRecord{}, WithStack(err)
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}
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if err := resp.CheckStatus(200); err != nil {
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return TransactionStatusRecord{}, WithStack(err)
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}
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var result TransactionStatusRecord
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if err := resp.ParseBody("result", &result); err != nil {
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return TransactionStatusRecord{}, WithStack(err)
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}
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return result, nil
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}
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func (d *database) CommitTransaction(ctx context.Context, tid TransactionID, opts *CommitTransactionOptions) error {
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_, err := d.requestForTransaction(ctx, tid, "PUT")
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return err
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}
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func (d *database) AbortTransaction(ctx context.Context, tid TransactionID, opts *AbortTransactionOptions) error {
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_, err := d.requestForTransaction(ctx, tid, "DELETE")
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return err
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}
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func (d *database) TransactionStatus(ctx context.Context, tid TransactionID) (TransactionStatusRecord, error) {
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return d.requestForTransaction(ctx, tid, "GET")
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}
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