github.com/dolthub/dolt/go@v0.40.5-0.20240520175717-68db7794bea6/libraries/doltcore/dbfactory/oci.go (about)

     1  // Copyright 2023 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package dbfactory
    16  
    17  import (
    18  	"context"
    19  	"net/url"
    20  
    21  	"github.com/oracle/oci-go-sdk/v65/common"
    22  	"github.com/oracle/oci-go-sdk/v65/objectstorage"
    23  
    24  	"github.com/dolthub/dolt/go/store/blobstore"
    25  	"github.com/dolthub/dolt/go/store/datas"
    26  	"github.com/dolthub/dolt/go/store/nbs"
    27  	"github.com/dolthub/dolt/go/store/prolly/tree"
    28  	"github.com/dolthub/dolt/go/store/types"
    29  )
    30  
    31  // OCIFactory is a DBFactory implementation for creating OCI backed databases
    32  type OCIFactory struct {
    33  }
    34  
    35  func (fact OCIFactory) PrepareDB(ctx context.Context, nbf *types.NomsBinFormat, urlObj *url.URL, params map[string]interface{}) error {
    36  	// nothing to prepare
    37  	return nil
    38  }
    39  
    40  // CreateDB creates an OCI backed database
    41  func (fact OCIFactory) CreateDB(ctx context.Context, nbf *types.NomsBinFormat, urlObj *url.URL, params map[string]interface{}) (datas.Database, types.ValueReadWriter, tree.NodeStore, error) {
    42  	var db datas.Database
    43  	provider := common.DefaultConfigProvider()
    44  
    45  	client, err := objectstorage.NewObjectStorageClientWithConfigurationProvider(provider)
    46  	if err != nil {
    47  		return nil, nil, nil, err
    48  	}
    49  
    50  	bs, err := blobstore.NewOCIBlobstore(ctx, provider, client, urlObj.Host, urlObj.Path)
    51  	if err != nil {
    52  		return nil, nil, nil, err
    53  	}
    54  
    55  	q := nbs.NewUnlimitedMemQuotaProvider()
    56  
    57  	ociStore, err := nbs.NewNoConjoinBSStore(ctx, nbf.VersionString(), bs, defaultMemTableSize, q)
    58  	if err != nil {
    59  		return nil, nil, nil, err
    60  	}
    61  
    62  	vrw := types.NewValueStore(ociStore)
    63  	ns := tree.NewNodeStore(ociStore)
    64  	db = datas.NewTypesDatabase(vrw, ns)
    65  
    66  	return db, vrw, ns, nil
    67  }