extension

package
v2.0.4-beta13 Latest Latest
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 Go to latest Published: Jul 10, 2024 License: Apache-2.0 Imports: 59 Imported by: 0

Documentation

Index

Constants

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const ContentSubPathDescription = "prepend a path inside the version content"
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const ContentSubPathName = "NNNN-content-subpath"
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const DigestAlgorithmsDescription = "" /* 129-byte string literal not displayed */
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const DigestAlgorithmsName = "0001-digest-algorithms"
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const DirectCleanDescription = "" /* 187-byte string literal not displayed */
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const DirectCleanName = "NNNN-direct-clean-path-layout"
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const FilesystemDescription = "preserves filesytem metadata"
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const FilesystemName = "NNNN-filesystem"
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const FlatOmitPrefixStorageLayoutDescription = "removes prefix after last occurrence of delimiter"
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const FlatOmitPrefixStorageLayoutName = "0006-flat-omit-prefix-storage-layout"
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const GOCFLExtensionManagerDescription = "initial extension for sorted exclusion and sorted execution"
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const GOCFLExtensionManagerName = "NNNN-gocfl-extension-manager"
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const IndexerDescription = "technical metadata for all files"
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const IndexerName = "NNNN-indexer"
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const InitialDescription = "initial extension defines the name of the extension manager"
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const InitialName = "initial"
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const LoggingIndexerName = "NNNN-indexer-logging-object"
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const METSDescription = "METS/EAD3/PREMIS metadata"
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const METSName = "NNNN-mets"
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const MetaFileDescription = "adds a file in extension folder"
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const MetaFileName = "NNNN-metafile"
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const MigrationDescription = "preservation management - file migration"
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const MigrationName = "NNNN-migration"
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const NTupleOmitPrefixStorageLayoutDescription = "pairtree-like root directory structure derived from prefix-omitted object identifiers"
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const NTupleOmitPrefixStorageLayoutName = "0007-n-tuple-omit-prefix-storage-layout"
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const PathDirectName = "NNNN-direct-path-layout"
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const StorageLayoutFlatDirectDescription = "one to one mapping without changes"
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const StorageLayoutFlatDirectName = "0002-flat-direct-storage-layout"
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const StorageLayoutHashAndIdNTupleDescription = "Hashed Truncated N-tuple Trees with Object ID Encapsulating Directory for OCFL Storage Hierarchies"
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const StorageLayoutHashAndIdNTupleName = "0003-hash-and-id-n-tuple-storage-layout"
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const StorageLayoutHashedNTupleDescription = "Hashed N-tuple Storage Layout"
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const StorageLayoutHashedNTupleName = "0004-hashed-n-tuple-storage-layout"
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const StorageLayoutPairTreeName = "NNNN-pairtree-storage-layout"
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const ThumbnailDescription = "preservation management - file thumbnail"
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const ThumbnailName = "NNNN-thumbnail"

Variables

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var ErrNotSupported = errors.New("extension not supported")

Functions

func GetContentSubPathParams 

func GetContentSubPathParams() []*ocfl.ExtensionExternalParam

func GetIndexerParams 

func GetIndexerParams() []*ocfl.ExtensionExternalParam

func GetInitialParams 

func GetInitialParams() []*ocfl.ExtensionExternalParam

func GetMetaFileParams 

func GetMetaFileParams() []*ocfl.ExtensionExternalParam

func GetMetsParams 

func GetMetsParams() []*ocfl.ExtensionExternalParam

func NewDirectClean 

func NewDirectClean(config *DirectCleanConfig) (ocfl.Extension, error)

func NewDirectCleanFS 

func NewDirectCleanFS(fsys fs.FS) (ocfl.Extension, error)

func NewPathDirectFS 

func NewPathDirectFS(fsys fs.FS) (ocfl.Extension, error)

Types

type Config 

type Config struct {
	ExtensionName string `json:"extensionName"`
}

type ContentSubPath 

type ContentSubPath struct {
	*ContentSubPathConfig
	// contains filtered or unexported fields
}

func NewContentSubPath 

func NewContentSubPath(config *ContentSubPathConfig) (*ContentSubPath, error)

func NewContentSubPathFS 

func NewContentSubPathFS(fsys fs.FS) (*ContentSubPath, error)

func (*ContentSubPath) BuildObjectExtractPath 

func (sl *ContentSubPath) BuildObjectExtractPath(object ocfl.Object, originalPath string, area string) (string, error)

func (*ContentSubPath) BuildObjectManifestPath 

func (sl *ContentSubPath) BuildObjectManifestPath(object ocfl.Object, originalPath string, area string) (string, error)

func (*ContentSubPath) BuildObjectStatePath 

func (sl *ContentSubPath) BuildObjectStatePath(object ocfl.Object, originalPath string, area string) (string, error)

func (*ContentSubPath) GetAreaPath 

func (sl *ContentSubPath) GetAreaPath(object ocfl.Object, area string) (string, error)

func (*ContentSubPath) GetConfig 

func (sl *ContentSubPath) GetConfig() any

func (*ContentSubPath) GetFS 

func (sl *ContentSubPath) GetFS() fs.FS

func (*ContentSubPath) GetMetadata 

func (sl *ContentSubPath) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*ContentSubPath) GetName 

func (sl *ContentSubPath) GetName() string

func (*ContentSubPath) IsRegistered 

func (sl *ContentSubPath) IsRegistered() bool

func (*ContentSubPath) SetFS 

func (sl *ContentSubPath) SetFS(fsys fs.FS, create bool)

func (*ContentSubPath) SetParams 

func (sl *ContentSubPath) SetParams(params map[string]string) error

func (*ContentSubPath) Terminate 

func (sl *ContentSubPath) Terminate() error

func (*ContentSubPath) UpdateObjectAfter 

func (sl *ContentSubPath) UpdateObjectAfter(object ocfl.Object) error

func (*ContentSubPath) UpdateObjectBefore 

func (sl *ContentSubPath) UpdateObjectBefore(object ocfl.Object) error

func (*ContentSubPath) WriteConfig 

func (sl *ContentSubPath) WriteConfig() error

type ContentSubPathConfig 

type ContentSubPathConfig struct {
	*ocfl.ExtensionConfig
	Paths map[string]ContentSubPathEntry `json:"subPath"`
}

type ContentSubPathEntry 

type ContentSubPathEntry struct {
	Path        string `json:"path"`
	Description string `json:"description"`
}

type DigestAlgorithms 

type DigestAlgorithms struct {
	*DigestAlgorithmsConfig
	// contains filtered or unexported fields
}

func NewDigestAlgorithms 

func NewDigestAlgorithms(config *DigestAlgorithmsConfig) (*DigestAlgorithms, error)

func NewDigestAlgorithmsFS 

func NewDigestAlgorithmsFS(fsys fs.FS) (*DigestAlgorithms, error)

func (*DigestAlgorithms) GetConfig 

func (sl *DigestAlgorithms) GetConfig() any

func (*DigestAlgorithms) GetFS 

func (sl *DigestAlgorithms) GetFS() fs.FS

func (*DigestAlgorithms) GetFixityDigests 

func (sl *DigestAlgorithms) GetFixityDigests() []checksum.DigestAlgorithm

func (*DigestAlgorithms) GetName 

func (sl *DigestAlgorithms) GetName() string

func (*DigestAlgorithms) IsRegistered 

func (sl *DigestAlgorithms) IsRegistered() bool

func (*DigestAlgorithms) SetFS 

func (sl *DigestAlgorithms) SetFS(fsys fs.FS, create bool)

func (*DigestAlgorithms) SetParams 

func (sl *DigestAlgorithms) SetParams(params map[string]string) error

func (*DigestAlgorithms) Terminate 

func (sl *DigestAlgorithms) Terminate() error

func (*DigestAlgorithms) WriteConfig 

func (sl *DigestAlgorithms) WriteConfig() error

type DigestAlgorithmsConfig 

type DigestAlgorithmsConfig struct {
	*ocfl.ExtensionConfig
}

type DirectClean 

type DirectClean struct {
	*DirectCleanConfig
	// contains filtered or unexported fields
}

func (*DirectClean) BuildObjectManifestPath 

func (sl *DirectClean) BuildObjectManifestPath(object ocfl.Object, originalPath string, area string) (string, error)

func (*DirectClean) BuildStorageRootPath 

func (sl *DirectClean) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

interface

func (*DirectClean) GetConfig 

func (sl *DirectClean) GetConfig() any

func (*DirectClean) GetFS 

func (sl *DirectClean) GetFS() fs.FS

func (*DirectClean) GetName 

func (sl *DirectClean) GetName() string

func (*DirectClean) IsRegistered 

func (sl *DirectClean) IsRegistered() bool

func (*DirectClean) SetFS 

func (sl *DirectClean) SetFS(fsys fs.FS, create bool)

func (*DirectClean) SetParams 

func (sl *DirectClean) SetParams(params map[string]string) error

func (*DirectClean) Terminate 

func (sl *DirectClean) Terminate() error

func (*DirectClean) WriteConfig 

func (sl *DirectClean) WriteConfig() error

func (*DirectClean) WriteLayout 

func (sl *DirectClean) WriteLayout(fsys fs.FS) error

type DirectCleanConfig 

type DirectCleanConfig struct {
	*ocfl.ExtensionConfig
	MaxPathnameLen              int                      `json:"maxPathnameLen"`
	MaxPathSegmentLen           int                      `json:"maxPathSegmentLen"`
	ReplacementString           string                   `json:"replacementString"`
	WhitespaceReplacementString string                   `json:"whitespaceReplacementString"`
	UTFEncode                   bool                     `json:"utfEncode"`
	FallbackDigestAlgorithm     checksum.DigestAlgorithm `json:"fallbackDigestAlgorithm"`
	FallbackFolder              string                   `json:"fallbackFolder"`
	NumberOfFallbackTuples      int                      `json:"numberOfFallbackTuples"`
	FallbackTupleSize           int                      `json:"fallbackTupleSize"`

	// compatibility with old config
	MaxFilenameLen     int `json:"maxFilenameLen,omitempty"`
	FallbackSubFolders int `json:"fallbackSubdirs,omitempty"`
}

type FileSystemLine 

type FileSystemLine struct {
	Path string          `json:"path"`
	Meta *FilesystemMeta `json:"meta"`
}

type Filesystem 

type Filesystem struct {
	*FilesystemConfig
	// contains filtered or unexported fields
}

func NewFilesystem 

func NewFilesystem(config *FilesystemConfig) (*Filesystem, error)

func NewFilesystemFS 

func NewFilesystemFS(fsys fs.FS, logger zLogger.ZLogger) (*Filesystem, error)

func (*Filesystem) AddFileAfter 

func (extFS *Filesystem) AddFileAfter(object ocfl.Object, sourceFS fs.FS, source []string, internalPath, digest, area string, isDir bool) error

func (*Filesystem) AddFileBefore 

func (extFS *Filesystem) AddFileBefore(object ocfl.Object, sourceFS fs.FS, source string, dest string, area string, isDir bool) error

func (*Filesystem) DeleteFileAfter 

func (extFS *Filesystem) DeleteFileAfter(object ocfl.Object, dest string, area string) error

func (*Filesystem) DeleteFileBefore 

func (extFS *Filesystem) DeleteFileBefore(object ocfl.Object, dest string, area string) error

func (*Filesystem) DoNewVersion 

func (extFS *Filesystem) DoNewVersion(object ocfl.Object) error

func (*Filesystem) GetConfig 

func (extFS *Filesystem) GetConfig() any

func (*Filesystem) GetFS 

func (extFS *Filesystem) GetFS() fs.FS

func (*Filesystem) GetMetadata 

func (extFS *Filesystem) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*Filesystem) GetName 

func (extFS *Filesystem) GetName() string

func (*Filesystem) IsRegistered 

func (extFS *Filesystem) IsRegistered() bool

func (*Filesystem) NeedNewVersion 

func (extFS *Filesystem) NeedNewVersion(object ocfl.Object) (bool, error)

func (*Filesystem) SetFS 

func (extFS *Filesystem) SetFS(fsys fs.FS, create bool)

func (*Filesystem) SetParams 

func (extFS *Filesystem) SetParams(params map[string]string) error

func (*Filesystem) Terminate 

func (extFS *Filesystem) Terminate() error

func (*Filesystem) UpdateFileAfter 

func (extFS *Filesystem) UpdateFileAfter(object ocfl.Object, sourceFS fs.FS, source, dest, area string, isDir bool) error

func (*Filesystem) UpdateFileBefore 

func (extFS *Filesystem) UpdateFileBefore(object ocfl.Object, sourceFS fs.FS, source, dest, area string, isDir bool) error

func (*Filesystem) UpdateObjectAfter 

func (extFS *Filesystem) UpdateObjectAfter(object ocfl.Object) error

func (*Filesystem) UpdateObjectBefore 

func (extFS *Filesystem) UpdateObjectBefore(object ocfl.Object) error

func (*Filesystem) WriteConfig 

func (extFS *Filesystem) WriteConfig() error

type FilesystemConfig 

type FilesystemConfig struct {
	*ocfl.ExtensionConfig
	Folders     string `json:"folders"`
	StorageType string `json:"storageType"`
	StorageName string `json:"storageName"`
	Compress    string `json:"compress"`
}

type FilesystemMeta 

type FilesystemMeta struct {
	ATime        time.Time `json:"aTime"`
	MTime        time.Time `json:"mTime"`
	CTime        time.Time `json:"cTime"`
	Attr         string    `json:"attr,omitempty"`
	Symlink      string    `json:"symlink,omitempty"`
	OS           string    `json:"os"`
	SystemStat   any       `json:"sysStat,omitempty"`
	StateVersion string    `json:"stateVersion"`
	Size         uint64    `json:"size"`
}

type FlatOmitPrefixStorageLayout 

type FlatOmitPrefixStorageLayout struct {
	*FlatOmitPrefixStorageLayoutConfig
	// contains filtered or unexported fields
}

func NewFlatOmitPrefixStorageLayout 

func NewFlatOmitPrefixStorageLayout(config *FlatOmitPrefixStorageLayoutConfig) (*FlatOmitPrefixStorageLayout, error)

func NewFlatOmitPrefixStorageLayoutFS 

func NewFlatOmitPrefixStorageLayoutFS(fsys fs.FS) (*FlatOmitPrefixStorageLayout, error)

func (*FlatOmitPrefixStorageLayout) BuildStorageRootPath 

func (sl *FlatOmitPrefixStorageLayout) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*FlatOmitPrefixStorageLayout) GetConfig 

func (sl *FlatOmitPrefixStorageLayout) GetConfig() any

func (*FlatOmitPrefixStorageLayout) GetFS 

func (sl *FlatOmitPrefixStorageLayout) GetFS() fs.FS

func (*FlatOmitPrefixStorageLayout) GetName 

func (sl *FlatOmitPrefixStorageLayout) GetName() string

func (*FlatOmitPrefixStorageLayout) IsRegistered 

func (sl *FlatOmitPrefixStorageLayout) IsRegistered() bool

func (*FlatOmitPrefixStorageLayout) SetFS 

func (sl *FlatOmitPrefixStorageLayout) SetFS(fsys fs.FS, create bool)

func (*FlatOmitPrefixStorageLayout) SetParams 

func (sl *FlatOmitPrefixStorageLayout) SetParams(params map[string]string) error

func (*FlatOmitPrefixStorageLayout) Stat 

func (sl *FlatOmitPrefixStorageLayout) Stat(w io.Writer, statInfo []ocfl.StatInfo) error

func (*FlatOmitPrefixStorageLayout) Terminate 

func (sl *FlatOmitPrefixStorageLayout) Terminate() error

func (*FlatOmitPrefixStorageLayout) WriteConfig 

func (sl *FlatOmitPrefixStorageLayout) WriteConfig() error

func (*FlatOmitPrefixStorageLayout) WriteLayout 

func (sl *FlatOmitPrefixStorageLayout) WriteLayout(fsys fs.FS) error

type FlatOmitPrefixStorageLayoutConfig 

type FlatOmitPrefixStorageLayoutConfig struct {
	*ocfl.ExtensionConfig
	Delimiter string `json:"delimiter"`
}

type GOCFLExtensionManager 

type GOCFLExtensionManager struct {
	*ocfl.ExtensionManagerConfig
	// contains filtered or unexported fields
}

func NewGOCFLExtensionManager 

func NewGOCFLExtensionManager(config *ocfl.ExtensionManagerConfig) (*GOCFLExtensionManager, error)

func NewGOCFLExtensionManagerFS 

func NewGOCFLExtensionManagerFS(fsys fs.FS) (*GOCFLExtensionManager, error)

func (*GOCFLExtensionManager) Add 

func (manager *GOCFLExtensionManager) Add(ext ocfl.Extension) error

func (*GOCFLExtensionManager) AddFileAfter 

func (manager *GOCFLExtensionManager) AddFileAfter(object ocfl.Object, sourceFS fs.FS, source []string, internalPath, digest, area string, isDir bool) error

func (*GOCFLExtensionManager) AddFileBefore 

func (manager *GOCFLExtensionManager) AddFileBefore(object ocfl.Object, sourceFS fs.FS, source string, dest string, area string, isDir bool) error

ContentChange

func (*GOCFLExtensionManager) BuildObjectExtractPath 

func (manager *GOCFLExtensionManager) BuildObjectExtractPath(object ocfl.Object, originalPath string, area string) (string, error)

func (*GOCFLExtensionManager) BuildObjectManifestPath 

func (manager *GOCFLExtensionManager) BuildObjectManifestPath(object ocfl.Object, originalPath string, area string) (string, error)

ObjectContentPath

func (*GOCFLExtensionManager) BuildObjectStatePath 

func (manager *GOCFLExtensionManager) BuildObjectStatePath(object ocfl.Object, originalPath string, area string) (string, error)

ObjectExternalPath

func (*GOCFLExtensionManager) BuildStorageRootPath 

func (manager *GOCFLExtensionManager) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*GOCFLExtensionManager) DeleteFileAfter 

func (manager *GOCFLExtensionManager) DeleteFileAfter(object ocfl.Object, dest string, area string) error

func (*GOCFLExtensionManager) DeleteFileBefore 

func (manager *GOCFLExtensionManager) DeleteFileBefore(object ocfl.Object, dest string, area string) error

func (*GOCFLExtensionManager) DoNewVersion 

func (manager *GOCFLExtensionManager) DoNewVersion(object ocfl.Object) error

func (*GOCFLExtensionManager) Finalize 

func (manager *GOCFLExtensionManager) Finalize()

func (*GOCFLExtensionManager) GetAreaPath 

func (manager *GOCFLExtensionManager) GetAreaPath(object ocfl.Object, area string) (string, error)

func (*GOCFLExtensionManager) GetConfig 

func (manager *GOCFLExtensionManager) GetConfig() any

func (*GOCFLExtensionManager) GetConfigName 

func (manager *GOCFLExtensionManager) GetConfigName(extName string) (any, error)

func (*GOCFLExtensionManager) GetExtensions 

func (manager *GOCFLExtensionManager) GetExtensions() []ocfl.Extension

func (*GOCFLExtensionManager) GetFS 

func (manager *GOCFLExtensionManager) GetFS() fs.FS

func (*GOCFLExtensionManager) GetFSName 

func (manager *GOCFLExtensionManager) GetFSName(extName string) (fs.FS, error)

func (*GOCFLExtensionManager) GetFixityDigests 

func (manager *GOCFLExtensionManager) GetFixityDigests() []checksum.DigestAlgorithm

FixityDigests

func (*GOCFLExtensionManager) GetMetadata 

func (manager *GOCFLExtensionManager) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*GOCFLExtensionManager) GetName 

func (manager *GOCFLExtensionManager) GetName() string

func (*GOCFLExtensionManager) IsRegistered 

func (manager *GOCFLExtensionManager) IsRegistered() bool

Extension

func (*GOCFLExtensionManager) NeedNewVersion 

func (manager *GOCFLExtensionManager) NeedNewVersion(object ocfl.Object) (bool, error)

NewVersion

func (*GOCFLExtensionManager) SetFS 

func (manager *GOCFLExtensionManager) SetFS(fsys fs.FS, create bool)

func (*GOCFLExtensionManager) SetInitial 

func (manager *GOCFLExtensionManager) SetInitial(initial ocfl.ExtensionInitial)

func (*GOCFLExtensionManager) SetParams 

func (manager *GOCFLExtensionManager) SetParams(params map[string]string) error

func (*GOCFLExtensionManager) StoreRootLayout 

func (manager *GOCFLExtensionManager) StoreRootLayout(fsys fs.FS) error

StorageRootPath

func (*GOCFLExtensionManager) StreamObject 

func (manager *GOCFLExtensionManager) StreamObject(object ocfl.Object, reader io.Reader, stateFiles []string, dest string) error

Stream

func (*GOCFLExtensionManager) Terminate 

func (manager *GOCFLExtensionManager) Terminate() error

func (*GOCFLExtensionManager) UpdateFileAfter 

func (manager *GOCFLExtensionManager) UpdateFileAfter(object ocfl.Object, sourceFS fs.FS, source, dest, area string, isDir bool) error

func (*GOCFLExtensionManager) UpdateFileBefore 

func (manager *GOCFLExtensionManager) UpdateFileBefore(object ocfl.Object, sourceFS fs.FS, source, dest, area string, isDir bool) error

func (*GOCFLExtensionManager) UpdateObjectAfter 

func (manager *GOCFLExtensionManager) UpdateObjectAfter(object ocfl.Object) error

func (*GOCFLExtensionManager) UpdateObjectBefore 

func (manager *GOCFLExtensionManager) UpdateObjectBefore(object ocfl.Object) error

ObjectChange

func (*GOCFLExtensionManager) WriteConfig 

func (manager *GOCFLExtensionManager) WriteConfig() error

func (*GOCFLExtensionManager) WriteLayout 

func (manager *GOCFLExtensionManager) WriteLayout(fsys fs.FS) error

type Indexer 

type Indexer struct {
	*IndexerConfig
	// contains filtered or unexported fields
}

func NewIndexer 

func NewIndexer(config *IndexerConfig, urlString string, indexerActions *ironmaiden.ActionDispatcher, localCache bool, logger zLogger.ZLogger) (*Indexer, error)

func NewIndexerFS 

func NewIndexerFS(fsys fs.FS, urlString string, indexerActions *ironmaiden.ActionDispatcher, localCache bool, logger zLogger.ZLogger) (*Indexer, error)

func (*Indexer) GetConfig 

func (sl *Indexer) GetConfig() any

func (*Indexer) GetFS 

func (sl *Indexer) GetFS() fs.FS

func (*Indexer) GetMetadata 

func (sl *Indexer) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*Indexer) GetName 

func (sl *Indexer) GetName() string

func (*Indexer) IsRegistered 

func (sl *Indexer) IsRegistered() bool

func (*Indexer) SetFS 

func (sl *Indexer) SetFS(fsys fs.FS, create bool)

func (*Indexer) SetParams 

func (sl *Indexer) SetParams(params map[string]string) error

func (*Indexer) StreamObject 

func (sl *Indexer) StreamObject(object ocfl.Object, reader io.Reader, stateFiles []string, dest string) error

func (*Indexer) Terminate 

func (sl *Indexer) Terminate() error

func (*Indexer) UpdateObjectAfter 

func (sl *Indexer) UpdateObjectAfter(object ocfl.Object) error

func (*Indexer) UpdateObjectBefore 

func (sl *Indexer) UpdateObjectBefore(object ocfl.Object) error

func (*Indexer) WriteConfig 

func (sl *Indexer) WriteConfig() error

type IndexerConfig 

type IndexerConfig struct {
	*ocfl.ExtensionConfig
	StorageType string
	StorageName string
	Actions     []string
	Compress    string
}

type Initial 

type Initial struct {
	*InitialConfig
	// contains filtered or unexported fields
}

func NewInitial 

func NewInitial(config *InitialConfig) (*Initial, error)

func NewInitialFS 

func NewInitialFS(fsys fs.FS) (*Initial, error)

func (*Initial) GetConfig 

func (sl *Initial) GetConfig() any

func (*Initial) GetExtension 

func (sl *Initial) GetExtension() string

func (*Initial) GetFS 

func (sl *Initial) GetFS() fs.FS

func (*Initial) GetName 

func (sl *Initial) GetName() string

func (*Initial) IsRegistered 

func (sl *Initial) IsRegistered() bool

func (*Initial) SetExtension 

func (sl *Initial) SetExtension(ext string)

func (*Initial) SetFS 

func (sl *Initial) SetFS(fsys fs.FS, create bool)

func (*Initial) SetParams 

func (sl *Initial) SetParams(params map[string]string) error

func (*Initial) Terminate 

func (sl *Initial) Terminate() error

func (*Initial) WriteConfig 

func (sl *Initial) WriteConfig() error

type InitialConfig 

type InitialConfig struct {
	*ocfl.ExtensionConfig
	Extension string `json:"extension"`
}

type InitialEntry 

type InitialEntry struct {
	Path        string `json:"path"`
	Description string `json:"description"`
}

type LoggingIndexer 

type LoggingIndexer struct {
	*LoggingIndexerConfig
	// contains filtered or unexported fields
}

func NewLoggingIndexer 

func NewLoggingIndexer(config *LoggingIndexerConfig) (*LoggingIndexer, error)

func (*LoggingIndexer) AddFile 

func (li *LoggingIndexer) AddFile(fullpath url.URL) error

func (*LoggingIndexer) DeleteFile 

func (li *LoggingIndexer) DeleteFile(fullpath url.URL) error

func (*LoggingIndexer) GetConfig 

func (sl *LoggingIndexer) GetConfig() any

func (*LoggingIndexer) GetFS 

func (sl *LoggingIndexer) GetFS() fs.FS

func (*LoggingIndexer) GetName 

func (li *LoggingIndexer) GetName() string

func (*LoggingIndexer) IsRegistered 

func (sl *LoggingIndexer) IsRegistered() bool

func (*LoggingIndexer) MoveFile 

func (li *LoggingIndexer) MoveFile(fullpath url.URL) error

func (*LoggingIndexer) SetFS 

func (li *LoggingIndexer) SetFS(fsys fs.FS, create bool)

func (*LoggingIndexer) SetParams 

func (li *LoggingIndexer) SetParams(params map[string]string) error

func (*LoggingIndexer) Start 

func (li *LoggingIndexer) Start() error

func (*LoggingIndexer) Terminate 

func (sl *LoggingIndexer) Terminate() error

func (*LoggingIndexer) WriteConfig 

func (li *LoggingIndexer) WriteConfig() error

func (*LoggingIndexer) WriteLog 

func (li *LoggingIndexer) WriteLog(logfile io.Writer) error

type LoggingIndexerConfig 

type LoggingIndexerConfig struct {
	*Config
}

type MetaFile 

type MetaFile struct {
	*MetaFileConfig
	// contains filtered or unexported fields
}

func NewMetaFile 

func NewMetaFile(config *MetaFileConfig, schema []byte) (*MetaFile, error)

func NewMetaFileFS 

func NewMetaFileFS(fsys fs.FS) (*MetaFile, error)

func (*MetaFile) GetConfig 

func (sl *MetaFile) GetConfig() any

func (*MetaFile) GetFS 

func (sl *MetaFile) GetFS() fs.FS

func (*MetaFile) GetMetadata 

func (sl *MetaFile) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*MetaFile) GetName 

func (sl *MetaFile) GetName() string

func (*MetaFile) IsRegistered 

func (sl *MetaFile) IsRegistered() bool

func (*MetaFile) SetFS 

func (sl *MetaFile) SetFS(fsys fs.FS, create bool)

func (*MetaFile) SetParams 

func (sl *MetaFile) SetParams(params map[string]string) error

func (*MetaFile) Terminate 

func (sl *MetaFile) Terminate() error

func (*MetaFile) UpdateObjectAfter 

func (sl *MetaFile) UpdateObjectAfter(object ocfl.Object) error

func (*MetaFile) UpdateObjectBefore 

func (sl *MetaFile) UpdateObjectBefore(object ocfl.Object) error

func (*MetaFile) WriteConfig 

func (sl *MetaFile) WriteConfig() error

type MetaFileConfig 

type MetaFileConfig struct {
	*ocfl.ExtensionConfig
	StorageType   string `json:"storageType"`
	StorageName   string `json:"storageName"`
	MetaName      string `json:"name,omitempty"`
	MetaSchema    string `json:"schema,omitempty"`
	MetaSchemaUrl string `json:"schemaUrl,omitempty"`
}

type Mets 

type Mets struct {
	*MetsConfig
	// contains filtered or unexported fields
}

func NewMets 

func NewMets(config *MetsConfig, logger zLogger.ZLogger) (*Mets, error)

func NewMetsFS 

func NewMetsFS(fsys fs.FS, logger zLogger.ZLogger) (*Mets, error)

func (*Mets) GetConfig 

func (me *Mets) GetConfig() any

func (*Mets) GetFS 

func (me *Mets) GetFS() fs.FS

func (*Mets) GetName 

func (me *Mets) GetName() string

func (*Mets) IsRegistered 

func (me *Mets) IsRegistered() bool

func (*Mets) SetFS 

func (me *Mets) SetFS(fsys fs.FS, create bool)

func (*Mets) SetParams 

func (me *Mets) SetParams(params map[string]string) error

func (*Mets) Terminate 

func (me *Mets) Terminate() error

func (*Mets) UpdateObjectAfter 

func (me *Mets) UpdateObjectAfter(object ocfl.Object) error

func (*Mets) UpdateObjectBefore 

func (me *Mets) UpdateObjectBefore(object ocfl.Object) error

func (*Mets) WriteConfig 

func (me *Mets) WriteConfig() error

type MetsConfig 

type MetsConfig struct {
	*ocfl.ExtensionConfig
	StorageType                string `json:"storageType"`
	StorageName                string `json:"storageName"`
	PrimaryDescriptiveMetadata string `json:"primaryDescriptiveMetadata,omitempty"`
	MetsFile                   string `json:"metsFile,omitempty"`
	PremisFile                 string `json:"premisFile,omitempty"`
}

type Migration 

type Migration struct {
	*MigrationConfig
	// contains filtered or unexported fields
}

func NewMigration 

func NewMigration(config *MigrationConfig, mig *migration.Migration) (*Migration, error)

func NewMigrationFS 

func NewMigrationFS(fsys fs.FS, migration *migration.Migration, logger zLogger.ZLogger) (*Migration, error)

func (*Migration) DoNewVersion 

func (mi *Migration) DoNewVersion(object ocfl.Object) error

DoNewVersion todo: check for second migration step and do different naming

func (*Migration) GetConfig 

func (mi *Migration) GetConfig() any

func (*Migration) GetFS 

func (mi *Migration) GetFS() fs.FS

func (*Migration) GetMetadata 

func (mi *Migration) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*Migration) GetName 

func (mi *Migration) GetName() string

func (*Migration) IsRegistered 

func (mi *Migration) IsRegistered() bool

func (*Migration) NeedNewVersion 

func (mi *Migration) NeedNewVersion(ocfl.Object) (bool, error)

func (*Migration) SetFS 

func (mi *Migration) SetFS(fsys fs.FS, create bool)

func (*Migration) SetParams 

func (mi *Migration) SetParams(map[string]string) error

func (*Migration) Terminate 

func (mi *Migration) Terminate() error

func (*Migration) UpdateObjectAfter 

func (mi *Migration) UpdateObjectAfter(object ocfl.Object) error

func (*Migration) UpdateObjectBefore 

func (mi *Migration) UpdateObjectBefore(ocfl.Object) error

func (*Migration) WriteConfig 

func (mi *Migration) WriteConfig() error

type MigrationConfig 

type MigrationConfig struct {
	*ocfl.ExtensionConfig
	StorageType string
	StorageName string
	Compress    string
}

type MigrationFiles 

type MigrationFiles map[string]*MigrationTarget

map checksum to migration

type MigrationMap 

type MigrationMap map[string]*MigrationTarget

map pronom to migration

type MigrationResult 

type MigrationResult struct {
	Source string `json:"source"`
	Error  string `json:"error,omitempty"`
	ID     string `json:"id"`
}

type MigrationTarget 

type MigrationTarget struct {
	Name            string
	Strategy        string        // add or replace
	FilenameRegexp  regexp.Regexp // target expression
	FilenameReplace string        // replacement string
	Command         string        // command to execute (stdin --> stdout)
}

type NTupleOmitPrefixStorageLayout 

type NTupleOmitPrefixStorageLayout struct {
	*NTupleOmitPrefixStorageLayoutConfig
	// contains filtered or unexported fields
}

func NewNTupleOmitPrefixStorageLayout 

func NewNTupleOmitPrefixStorageLayout(config *NTupleOmitPrefixStorageLayoutConfig) (*NTupleOmitPrefixStorageLayout, error)

func NewNTupleOmitPrefixStorageLayoutFS 

func NewNTupleOmitPrefixStorageLayoutFS(fsys fs.FS) (*NTupleOmitPrefixStorageLayout, error)

func (*NTupleOmitPrefixStorageLayout) BuildStorageRootPath 

func (sl *NTupleOmitPrefixStorageLayout) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*NTupleOmitPrefixStorageLayout) GetConfig 

func (sl *NTupleOmitPrefixStorageLayout) GetConfig() any

func (*NTupleOmitPrefixStorageLayout) GetFS 

func (sl *NTupleOmitPrefixStorageLayout) GetFS() fs.FS

func (*NTupleOmitPrefixStorageLayout) GetName 

func (sl *NTupleOmitPrefixStorageLayout) GetName() string

func (*NTupleOmitPrefixStorageLayout) IsRegistered 

func (sl *NTupleOmitPrefixStorageLayout) IsRegistered() bool

func (*NTupleOmitPrefixStorageLayout) SetFS 

func (sl *NTupleOmitPrefixStorageLayout) SetFS(fsys fs.FS, create bool)

func (*NTupleOmitPrefixStorageLayout) SetParams 

func (sl *NTupleOmitPrefixStorageLayout) SetParams(params map[string]string) error

func (*NTupleOmitPrefixStorageLayout) Stat 

func (sl *NTupleOmitPrefixStorageLayout) Stat(w io.Writer, statInfo []ocfl.StatInfo) error

func (*NTupleOmitPrefixStorageLayout) Terminate 

func (sl *NTupleOmitPrefixStorageLayout) Terminate() error

func (*NTupleOmitPrefixStorageLayout) WriteConfig 

func (sl *NTupleOmitPrefixStorageLayout) WriteConfig() error

func (*NTupleOmitPrefixStorageLayout) WriteLayout 

func (sl *NTupleOmitPrefixStorageLayout) WriteLayout(fsys fs.FS) error

type NTupleOmitPrefixStorageLayoutConfig 

type NTupleOmitPrefixStorageLayoutConfig struct {
	*ocfl.ExtensionConfig
	Delimiter         string `json:"delimiter"`
	TupleSize         int    `json:"tupleSize"`
	NumberOfTuples    int    `json:"numberOfTuples"`
	ZeroPadding       string `json:"zeroPadding"`
	ReverseObjectRoot bool   `json:"reverseObjectRoot"`
}

type PathDirect 

type PathDirect struct {
	*PathDirectConfig
}

func NewPathDirect 

func NewPathDirect(config *PathDirectConfig) (*PathDirect, error)

func (*PathDirect) BuildObjectManifestPath 

func (sl *PathDirect) BuildObjectManifestPath(object ocfl.Object, originalPath string, area string) (string, error)

func (*PathDirect) BuildStorageRootPath 

func (sl *PathDirect) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*PathDirect) GetConfig 

func (sl *PathDirect) GetConfig() any

func (*PathDirect) GetFS 

func (sl *PathDirect) GetFS() fs.FS

func (*PathDirect) GetName 

func (sl *PathDirect) GetName() string

func (*PathDirect) IsRegistered 

func (sl *PathDirect) IsRegistered() bool

func (*PathDirect) SetParams 

func (sl *PathDirect) SetParams(params map[string]string) error

func (*PathDirect) Terminate 

func (sl *PathDirect) Terminate() error

func (*PathDirect) WriteConfig 

func (sl *PathDirect) WriteConfig() error

func (*PathDirect) WriteLayout 

func (sl *PathDirect) WriteLayout(fsys fs.FS) error

type PathDirectConfig 

type PathDirectConfig struct {
	*Config
	// contains filtered or unexported fields
}

func (*PathDirectConfig) SetFS 

func (sl *PathDirectConfig) SetFS(fsys fs.FS, create bool)

type StorageLayoutFlatDirect 

type StorageLayoutFlatDirect struct {
	*StorageLayoutFlatDirectConfig
	// contains filtered or unexported fields
}

func NewStorageLayoutFlatDirect 

func NewStorageLayoutFlatDirect(config *StorageLayoutFlatDirectConfig) (*StorageLayoutFlatDirect, error)

func NewStorageLayoutFlatDirectFS 

func NewStorageLayoutFlatDirectFS(fsys fs.FS) (*StorageLayoutFlatDirect, error)

func (*StorageLayoutFlatDirect) BuildStorageRootPath 

func (sl *StorageLayoutFlatDirect) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*StorageLayoutFlatDirect) GetConfig 

func (sl *StorageLayoutFlatDirect) GetConfig() any

func (*StorageLayoutFlatDirect) GetFS 

func (sl *StorageLayoutFlatDirect) GetFS() fs.FS

func (*StorageLayoutFlatDirect) GetName 

func (sl *StorageLayoutFlatDirect) GetName() string

func (*StorageLayoutFlatDirect) IsRegistered 

func (sl *StorageLayoutFlatDirect) IsRegistered() bool

func (*StorageLayoutFlatDirect) SetFS 

func (sl *StorageLayoutFlatDirect) SetFS(fsys fs.FS, create bool)

func (*StorageLayoutFlatDirect) SetParams 

func (sl *StorageLayoutFlatDirect) SetParams(params map[string]string) error

func (*StorageLayoutFlatDirect) Stat 

func (sl *StorageLayoutFlatDirect) Stat(w io.Writer, statInfo []ocfl.StatInfo) error

func (*StorageLayoutFlatDirect) Terminate 

func (sl *StorageLayoutFlatDirect) Terminate() error

func (*StorageLayoutFlatDirect) WriteConfig 

func (sl *StorageLayoutFlatDirect) WriteConfig() error

func (*StorageLayoutFlatDirect) WriteLayout 

func (sl *StorageLayoutFlatDirect) WriteLayout(fsys fs.FS) error

type StorageLayoutFlatDirectConfig 

type StorageLayoutFlatDirectConfig struct {
	*ocfl.ExtensionConfig
}

type StorageLayoutHashAndIdNTuple 

type StorageLayoutHashAndIdNTuple struct {
	*StorageLayoutHashAndIdNTupleConfig
	// contains filtered or unexported fields
}

func NewStorageLayoutHashAndIdNTuple 

func NewStorageLayoutHashAndIdNTuple(config *StorageLayoutHashAndIdNTupleConfig) (*StorageLayoutHashAndIdNTuple, error)

func NewStorageLayoutHashAndIdNTupleFS 

func NewStorageLayoutHashAndIdNTupleFS(fsys fs.FS) (*StorageLayoutHashAndIdNTuple, error)

func (*StorageLayoutHashAndIdNTuple) BuildStorageRootPath 

func (sl *StorageLayoutHashAndIdNTuple) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*StorageLayoutHashAndIdNTuple) GetConfig 

func (sl *StorageLayoutHashAndIdNTuple) GetConfig() any

func (*StorageLayoutHashAndIdNTuple) GetFS 

func (sl *StorageLayoutHashAndIdNTuple) GetFS() fs.FS

func (*StorageLayoutHashAndIdNTuple) GetName 

func (sl *StorageLayoutHashAndIdNTuple) GetName() string

func (*StorageLayoutHashAndIdNTuple) IsRegistered 

func (sl *StorageLayoutHashAndIdNTuple) IsRegistered() bool

func (*StorageLayoutHashAndIdNTuple) SetFS 

func (sl *StorageLayoutHashAndIdNTuple) SetFS(fsys fs.FS, create bool)

func (*StorageLayoutHashAndIdNTuple) SetParams 

func (sl *StorageLayoutHashAndIdNTuple) SetParams(params map[string]string) error

func (*StorageLayoutHashAndIdNTuple) Terminate 

func (sl *StorageLayoutHashAndIdNTuple) Terminate() error

func (*StorageLayoutHashAndIdNTuple) WriteConfig 

func (sl *StorageLayoutHashAndIdNTuple) WriteConfig() error

func (*StorageLayoutHashAndIdNTuple) WriteLayout 

func (sl *StorageLayoutHashAndIdNTuple) WriteLayout(fsys fs.FS) error

type StorageLayoutHashAndIdNTupleConfig 

type StorageLayoutHashAndIdNTupleConfig struct {
	*ocfl.ExtensionConfig
	DigestAlgorithm string `json:"digestAlgorithm"`
	TupleSize       int    `json:"tupleSize"`
	NumberOfTuples  int    `json:"numberOfTuples"`
}

type StorageLayoutHashedNTuple 

type StorageLayoutHashedNTuple struct {
	*StorageLayoutHashedNTupleConfig
	// contains filtered or unexported fields
}

func NewStorageLayoutHashedNTuple 

func NewStorageLayoutHashedNTuple(config *StorageLayoutHashedNTupleConfig) (*StorageLayoutHashedNTuple, error)

func NewStorageLayoutHashedNTupleFS 

func NewStorageLayoutHashedNTupleFS(fsys fs.FS) (*StorageLayoutHashedNTuple, error)

func (*StorageLayoutHashedNTuple) BuildStorageRootPath 

func (sl *StorageLayoutHashedNTuple) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*StorageLayoutHashedNTuple) GetConfig 

func (sl *StorageLayoutHashedNTuple) GetConfig() any

func (*StorageLayoutHashedNTuple) GetFS 

func (sl *StorageLayoutHashedNTuple) GetFS() fs.FS

func (*StorageLayoutHashedNTuple) GetName 

func (sl *StorageLayoutHashedNTuple) GetName() string

func (*StorageLayoutHashedNTuple) IsRegistered 

func (sl *StorageLayoutHashedNTuple) IsRegistered() bool

func (*StorageLayoutHashedNTuple) SetFS 

func (sl *StorageLayoutHashedNTuple) SetFS(fsys fs.FS, create bool)

func (*StorageLayoutHashedNTuple) SetParams 

func (sl *StorageLayoutHashedNTuple) SetParams(params map[string]string) error

func (*StorageLayoutHashedNTuple) Terminate 

func (sl *StorageLayoutHashedNTuple) Terminate() error

func (*StorageLayoutHashedNTuple) WriteConfig 

func (sl *StorageLayoutHashedNTuple) WriteConfig() error

func (*StorageLayoutHashedNTuple) WriteLayout 

func (sl *StorageLayoutHashedNTuple) WriteLayout(fsys fs.FS) error

type StorageLayoutHashedNTupleConfig 

type StorageLayoutHashedNTupleConfig struct {
	*ocfl.ExtensionConfig
	DigestAlgorithm string `json:"digestAlgorithm"`
	TupleSize       int    `json:"tupleSize"`
	NumberOfTuples  int    `json:"numberOfTuples"`
	ShortObjectRoot bool   `json:"shortObjectRoot"`
}

type StorageLayoutPairTree 

type StorageLayoutPairTree struct {
	*StorageLayoutPairTreeConfig
	// contains filtered or unexported fields
}

func NewStorageLayoutPairTree 

func NewStorageLayoutPairTree(config *StorageLayoutPairTreeConfig) (*StorageLayoutPairTree, error)

func NewStorageLayoutPairTreeFS 

func NewStorageLayoutPairTreeFS(fsys fs.FS) (*StorageLayoutPairTree, error)

func (*StorageLayoutPairTree) BuildStorageRootPath 

func (sl *StorageLayoutPairTree) BuildStorageRootPath(storageRoot ocfl.StorageRoot, id string) (string, error)

func (*StorageLayoutPairTree) GetConfig 

func (sl *StorageLayoutPairTree) GetConfig() any

func (*StorageLayoutPairTree) GetFS 

func (sl *StorageLayoutPairTree) GetFS() fs.FS

func (*StorageLayoutPairTree) GetName 

func (sl *StorageLayoutPairTree) GetName() string

func (*StorageLayoutPairTree) IsObjectExtension 

func (sl *StorageLayoutPairTree) IsObjectExtension() bool

func (*StorageLayoutPairTree) IsRegistered 

func (sl *StorageLayoutPairTree) IsRegistered() bool

func (*StorageLayoutPairTree) IsStorageRootExtension 

func (sl *StorageLayoutPairTree) IsStorageRootExtension() bool

func (*StorageLayoutPairTree) SetFS 

func (sl *StorageLayoutPairTree) SetFS(fsys fs.FS, create bool)

func (*StorageLayoutPairTree) SetParams 

func (sl *StorageLayoutPairTree) SetParams(params map[string]string) error

func (*StorageLayoutPairTree) Terminate 

func (sl *StorageLayoutPairTree) Terminate() error

func (*StorageLayoutPairTree) WriteConfig 

func (sl *StorageLayoutPairTree) WriteConfig() error

func (*StorageLayoutPairTree) WriteLayout 

func (sl *StorageLayoutPairTree) WriteLayout(fsys fs.FS) error

type StorageLayoutPairTreeConfig 

type StorageLayoutPairTreeConfig struct {
	*ocfl.ExtensionConfig
	UriBase         string `json:"uriBase"`
	StoreDir        string `json:"storeDir"`
	ShortyLength    int    `json:"shortyLength"`
	DigestAlgorithm string `json:"digestAlgorithm"`
}

type Thumbnail 

type Thumbnail struct {
	*ThumbnailConfig
	// contains filtered or unexported fields
}

func NewThumbnail 

func NewThumbnail(config *ThumbnailConfig, mig *thumbnail.Thumbnail, logger zLogger.ZLogger) (*Thumbnail, error)

func NewThumbnailFS 

func NewThumbnailFS(fsys fs.FS, thumbnail *thumbnail.Thumbnail, logger zLogger.ZLogger) (*Thumbnail, error)

func (*Thumbnail) DoThumbnail 

func (thumb *Thumbnail) DoThumbnail(object ocfl.Object, head string, thumbFunc *thumbnail.Function, ext string, file io.ReadCloser) (string, string, error)

func (*Thumbnail) GetConfig 

func (thumb *Thumbnail) GetConfig() any

func (*Thumbnail) GetFS 

func (thumb *Thumbnail) GetFS() fs.FS

func (*Thumbnail) GetMetadata 

func (thumb *Thumbnail) GetMetadata(object ocfl.Object) (map[string]any, error)

func (*Thumbnail) GetName 

func (thumb *Thumbnail) GetName() string

func (*Thumbnail) IsRegistered 

func (thumb *Thumbnail) IsRegistered() bool

func (*Thumbnail) SetFS 

func (thumb *Thumbnail) SetFS(fsys fs.FS, create bool)

func (*Thumbnail) SetParams 

func (thumb *Thumbnail) SetParams(map[string]string) error

func (*Thumbnail) StreamObject 

func (thumb *Thumbnail) StreamObject(object ocfl.Object, reader io.Reader, stateFiles []string, dest string) error

func (*Thumbnail) Terminate 

func (thumb *Thumbnail) Terminate() error

func (*Thumbnail) UpdateObjectAfter 

func (thumb *Thumbnail) UpdateObjectAfter(object ocfl.Object) error

func (*Thumbnail) UpdateObjectBefore 

func (thumb *Thumbnail) UpdateObjectBefore(ocfl.Object) error

func (*Thumbnail) WriteConfig 

func (thumb *Thumbnail) WriteConfig() error

type ThumbnailConfig 

type ThumbnailConfig struct {
	*ocfl.ExtensionConfig
	Compress        string `json:"compress"`
	ShortFilename   bool   `json:"shortFilename"`
	Ext             string `json:"ext"`
	Width           uint64 `json:"width"`
	Height          uint64 `json:"height"`
	SingleDirectory bool   `json:"singleDirectory"`
	StorageType     string `json:"storageType"`
	StorageName     string `json:"storageName"`
}

type ThumbnailFiles 

type ThumbnailFiles map[string]*ThumbnailTarget

map checksum to thumbnail

type ThumbnailMap 

type ThumbnailMap map[string]*ThumbnailTarget

map pronom to thumbnail

type ThumbnailResult 

type ThumbnailResult struct {
	Ext          string   `json:"ext,omitempty"`
	Error        string   `json:"error,omitempty"`
	ID           string   `json:"id,omitempty"`
	Filename     string   `json:"filename,omitempty"`
	StorageType  string   `json:"storageType,omitempty"`
	ThumbDigest  string   `json:"thumbDigest,omitempty"`
	SourceDigest string   `json:"sourceDigest,omitempty"`
	SourceName   []string `json:"sourceName,omitempty"`
}

type ThumbnailTarget 

type ThumbnailTarget struct {
	Name           string
	Strategy       string        // add or replace
	FilenameRegexp regexp.Regexp // target expression
	Command        string        // command to execute (stdin --> stdout)
}

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