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54 lines
2.0 KiB
54 lines
2.0 KiB
package filer
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import (
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"context"
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"errors"
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"github.com/chrislusf/seaweedfs/weed/util"
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"io"
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)
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const CountEntryChunksForGzip = 50
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var (
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ErrUnsupportedListDirectoryPrefixed = errors.New("unsupported directory prefix listing")
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ErrUnsupportedSuperLargeDirectoryListing = errors.New("unsupported super large directory listing")
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ErrKvNotImplemented = errors.New("kv not implemented yet")
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ErrKvNotFound = errors.New("kv: not found")
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)
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type ListEachEntryFunc func(entry *Entry) bool
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type FilerStore interface {
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// GetName gets the name to locate the configuration in filer.toml file
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GetName() string
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// Initialize initializes the file store
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Initialize(configuration util.Configuration, prefix string) error
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InsertEntry(context.Context, *Entry) error
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UpdateEntry(context.Context, *Entry) (err error)
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// err == filer_pb.ErrNotFound if not found
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FindEntry(context.Context, util.FullPath) (entry *Entry, err error)
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DeleteEntry(context.Context, util.FullPath) (err error)
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DeleteFolderChildren(context.Context, util.FullPath) (err error)
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ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc ListEachEntryFunc) (lastFileName string, err error)
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ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc ListEachEntryFunc) (lastFileName string, err error)
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BeginTransaction(ctx context.Context) (context.Context, error)
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CommitTransaction(ctx context.Context) error
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RollbackTransaction(ctx context.Context) error
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KvPut(ctx context.Context, key []byte, value []byte) (err error)
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KvGet(ctx context.Context, key []byte) (value []byte, err error)
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KvDelete(ctx context.Context, key []byte) (err error)
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Shutdown()
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}
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type BucketAware interface {
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OnBucketCreation(bucket string)
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OnBucketDeletion(bucket string)
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CanDropWholeBucket() bool
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}
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type Debuggable interface {
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Debug(writer io.Writer)
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}
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