2d4c07b56d
Move the persistence characteristic of the store into the graph registry and provide an API hook to get that information. Add error return for init on a non-persistent store. Updates #35.
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
// Copyright 2014 The Cayley Authors. All rights reserved.
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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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package db
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import (
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"errors"
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"fmt"
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"github.com/google/cayley/config"
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"github.com/google/cayley/graph"
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)
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var ErrNotPersistent = errors.New("database type is not persistent")
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func Init(cfg *config.Config, triplePath string) error {
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if !graph.IsPersistent(cfg.DatabaseType) {
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return fmt.Errorf("ignoring unproductive database initialization request: %v", ErrNotPersistent)
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}
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err := graph.InitTripleStore(cfg.DatabaseType, cfg.DatabasePath, cfg.DatabaseOptions)
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if err != nil {
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return err
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}
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if triplePath != "" {
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ts, err := Open(cfg)
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if err != nil {
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return err
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}
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err = Load(ts, cfg, triplePath)
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if err != nil {
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return err
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}
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ts.Close()
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}
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return err
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}
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