mirror of https://github.com/perkeep/perkeep.git
47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
/*
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Copyright 2014 The Perkeep Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package mongo
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import (
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"context"
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"fmt"
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"perkeep.org/pkg/blob"
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"perkeep.org/pkg/blobserver"
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"go4.org/syncutil"
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mgo "gopkg.in/mgo.v2"
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"gopkg.in/mgo.v2/bson"
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)
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var statGate = syncutil.NewGate(50) // arbitrary
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func (m *mongoStorage) StatBlobs(ctx context.Context, blobs []blob.Ref, fn func(blob.SizedRef) error) error {
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return blobserver.StatBlobsParallelHelper(ctx, blobs, fn, statGate, func(b blob.Ref) (sb blob.SizedRef, err error) {
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var doc blobDoc
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err = m.c.Find(bson.M{"key": b.String()}).Select(bson.M{"size": 1}).One(&doc)
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switch err {
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case nil:
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return blob.SizedRef{Ref: b, Size: doc.Size}, nil
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case mgo.ErrNotFound:
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return sb, nil
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default:
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return sb, fmt.Errorf("mongo: error statting %v: %v", b, err)
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}
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})
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}
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