privacyenabledstate

package
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 Go to latest Published: Oct 10, 2018 License: Apache-2.0 Imports: 23 Imported by: 0

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Constants

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Variables

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Functions

This section is empty.

Types

type CommonStorageDB 

type CommonStorageDB struct {
	statedb.VersionedDB
	// contains filtered or unexported fields
}

CommonStorageDB implements interface DB. This implementation uses a single database to maintain both the public and private data

func (*CommonStorageDB) ApplyPrivacyAwareUpdates 

func (s *CommonStorageDB) ApplyPrivacyAwareUpdates(updates *UpdateBatch, height *version.Height) error

ApplyPrivacyAwareUpdates implements corresponding function in interface DB

func (*CommonStorageDB) ApplyUpdates 

func (s *CommonStorageDB) ApplyUpdates(batch *statedb.UpdateBatch, height *version.Height) error

ApplyUpdates overrides the function in statedb.VersionedDB and throws appropriate error message Otherwise, somewhere in the code, usage of this function could lead to updating only public data.

func (*CommonStorageDB) ChaincodeDeployDone 

func (s *CommonStorageDB) ChaincodeDeployDone(succeeded bool)

ChaincodeDeployDone is a noop for couchdb state impl

func (*CommonStorageDB) ClearCachedVersions 

func (s *CommonStorageDB) ClearCachedVersions()

ClearCachedVersions implements corresponding function in interface DB

func (CommonStorageDB) ExecuteQueryOnPrivateData 

func (s CommonStorageDB) ExecuteQueryOnPrivateData(namespace, collection, query string) (statedb.ResultsIterator, error)

ExecuteQueryOnPrivateData implements corresponding function in interface DB

func (*CommonStorageDB) GetCachedKeyHashVersion 

func (s *CommonStorageDB) GetCachedKeyHashVersion(namespace, collection string, keyHash []byte) (*version.Height, bool)

GetCachedKeyHashVersion retrieves the keyhash version from cache

func (*CommonStorageDB) GetChaincodeEventListener 

func (s *CommonStorageDB) GetChaincodeEventListener() cceventmgmt.ChaincodeLifecycleEventListener

GetChaincodeEventListener implements corresponding function in interface DB

func (*CommonStorageDB) GetKeyHashVersion 

func (s *CommonStorageDB) GetKeyHashVersion(namespace, collection string, keyHash []byte) (*version.Height, error)

GetKeyHashVersion implements corresponding function in interface DB

func (*CommonStorageDB) GetPrivateData 

func (s *CommonStorageDB) GetPrivateData(namespace, collection, key string) (*statedb.VersionedValue, error)

GetPrivateData implements corresponding function in interface DB

func (*CommonStorageDB) GetPrivateDataMetadataByHash 

func (s *CommonStorageDB) GetPrivateDataMetadataByHash(namespace, collection string, keyHash []byte) ([]byte, error)

GetPrivateDataMetadataByHash implements corresponding function in interface DB. For additional details, see decription of the similar function 'GetStateMetadata'

func (*CommonStorageDB) GetPrivateDataMultipleKeys 

func (s *CommonStorageDB) GetPrivateDataMultipleKeys(namespace, collection string, keys []string) ([]*statedb.VersionedValue, error)

GetPrivateDataMultipleKeys implements corresponding function in interface DB

func (*CommonStorageDB) GetPrivateDataRangeScanIterator 

func (s *CommonStorageDB) GetPrivateDataRangeScanIterator(namespace, collection, startKey, endKey string) (statedb.ResultsIterator, error)

GetPrivateDataRangeScanIterator implements corresponding function in interface DB

func (*CommonStorageDB) GetStateMetadata 

func (s *CommonStorageDB) GetStateMetadata(namespace, key string) ([]byte, error)

GetStateMetadata implements corresponding function in interface DB. This implementation provides an optimization such that it keeps track if a namespaces has never stored metadata for any of its items, the value 'nil' is returned without going to the db. This is intented to be invoked in the validation and commit path. This saves the chaincodes from paying unnecessary performance penality if they do not use features that leverage metadata (such as key-level endorsement),

func (*CommonStorageDB) GetValueHash 

func (s *CommonStorageDB) GetValueHash(namespace, collection string, keyHash []byte) (*statedb.VersionedValue, error)

GetValueHash implements corresponding function in interface DB

func (*CommonStorageDB) HandleChaincodeDeploy 

func (s *CommonStorageDB) HandleChaincodeDeploy(chaincodeDefinition *cceventmgmt.ChaincodeDefinition, dbArtifactsTar []byte) error

HandleChaincodeDeploy initializes database artifacts for the database associated with the namespace This function delibrately suppresses the errors that occur during the creation of the indexes on couchdb. This is because, in the present code, we do not differentiate between the errors because of couchdb interaction and the errors because of bad index files - the later being unfixable by the admin. Note that the error suppression is acceptable since peer can continue in the committing role without the indexes. However, executing chaincode queries may be affected, until a new chaincode with fixed indexes is installed and instantiated

func (*CommonStorageDB) IsBulkOptimizable 

func (s *CommonStorageDB) IsBulkOptimizable() bool

IsBulkOptimizable implements corresponding function in interface DB

func (*CommonStorageDB) LoadCommittedVersionsOfPubAndHashedKeys 

func (s *CommonStorageDB) LoadCommittedVersionsOfPubAndHashedKeys(pubKeys []*statedb.CompositeKey,
	hashedKeys []*HashedCompositeKey) error

LoadCommittedVersionsOfPubAndHashedKeys implements corresponding function in interface DB

type CommonStorageDBProvider 

type CommonStorageDBProvider struct {
	statedb.VersionedDBProvider
	// contains filtered or unexported fields
}

CommonStorageDBProvider implements interface DBProvider

func (*CommonStorageDBProvider) Close 

func (p *CommonStorageDBProvider) Close()

Close implements function from interface DBProvider

func (*CommonStorageDBProvider) GetDBHandle 

func (p *CommonStorageDBProvider) GetDBHandle(id string) (DB, error)

GetDBHandle implements function from interface DBProvider

type CouchDBCommonStorageTestEnv 

type CouchDBCommonStorageTestEnv struct {
	// contains filtered or unexported fields
}

CouchDBCommonStorageTestEnv implements TestEnv interface for couchdb based storage

func (*CouchDBCommonStorageTestEnv) Cleanup 

func (env *CouchDBCommonStorageTestEnv) Cleanup()

Cleanup implements corresponding function from interface TestEnv

func (*CouchDBCommonStorageTestEnv) GetDBHandle 

func (env *CouchDBCommonStorageTestEnv) GetDBHandle(id string) DB

GetDBHandle implements corresponding function from interface TestEnv

func (*CouchDBCommonStorageTestEnv) GetName 

func (env *CouchDBCommonStorageTestEnv) GetName() string

GetName implements corresponding function from interface TestEnv

func (*CouchDBCommonStorageTestEnv) Init 

func (env *CouchDBCommonStorageTestEnv) Init(t testing.TB)

Init implements corresponding function from interface TestEnv

type DB 

type DB interface {
	statedb.VersionedDB
	IsBulkOptimizable() bool
	LoadCommittedVersionsOfPubAndHashedKeys(pubKeys []*statedb.CompositeKey, hashedKeys []*HashedCompositeKey) error
	GetCachedKeyHashVersion(namespace, collection string, keyHash []byte) (*version.Height, bool)
	ClearCachedVersions()
	GetChaincodeEventListener() cceventmgmt.ChaincodeLifecycleEventListener
	GetPrivateData(namespace, collection, key string) (*statedb.VersionedValue, error)
	GetValueHash(namespace, collection string, keyHash []byte) (*statedb.VersionedValue, error)
	GetKeyHashVersion(namespace, collection string, keyHash []byte) (*version.Height, error)
	GetPrivateDataMultipleKeys(namespace, collection string, keys []string) ([]*statedb.VersionedValue, error)
	GetPrivateDataRangeScanIterator(namespace, collection, startKey, endKey string) (statedb.ResultsIterator, error)
	GetStateMetadata(namespace, key string) ([]byte, error)
	GetPrivateDataMetadataByHash(namespace, collection string, keyHash []byte) ([]byte, error)
	ExecuteQueryOnPrivateData(namespace, collection, query string) (statedb.ResultsIterator, error)
	ApplyPrivacyAwareUpdates(updates *UpdateBatch, height *version.Height) error
}

DB extends VersionedDB interface. This interface provides additional functions for managing private data state

func NewCommonStorageDB 

func NewCommonStorageDB(vdb statedb.VersionedDB, ledgerid string, metadataHint *metadataHint) (DB, error)

NewCommonStorageDB wraps a VersionedDB instance. The public data is managed directly by the wrapped versionedDB. For managing the hashed data and private data, this implementation creates separate namespaces in the wrapped db

type DBProvider 

type DBProvider interface {
	// GetDBHandle returns a handle to a PvtVersionedDB
	GetDBHandle(id string) (DB, error)
	// Close closes all the PvtVersionedDB instances and releases any resources held by VersionedDBProvider
	Close()
}

DBProvider provides handle to a PvtVersionedDB

func NewCommonStorageDBProvider 

func NewCommonStorageDBProvider(bookkeeperProvider bookkeeping.Provider) (DBProvider, error)

NewCommonStorageDBProvider constructs an instance of DBProvider

type HashedCompositeKey 

type HashedCompositeKey struct {
	Namespace      string
	CollectionName string
	KeyHash        string
}

HashedCompositeKey encloses Namespace, CollectionName and KeyHash components

func (*HashedCompositeKey) String 

func (hck *HashedCompositeKey) String() string

String returns a print friendly form of HashedCompositeKey

type HashedUpdateBatch 

type HashedUpdateBatch struct {
	UpdateMap
}

HashedUpdateBatch contains updates for the hashes of the private data

func NewHashedUpdateBatch 

func NewHashedUpdateBatch() *HashedUpdateBatch

NewHashedUpdateBatch creates an empty HashedUpdateBatch

func (HashedUpdateBatch) Contains 

func (h HashedUpdateBatch) Contains(ns, coll string, keyHash []byte) bool

Contains returns true if the given <ns,coll,keyHash> tuple is present in the batch

func (HashedUpdateBatch) Delete 

func (h HashedUpdateBatch) Delete(ns, coll string, key []byte, version *version.Height)

Delete overrides the function in UpdateMap for allowing the key to be a []byte instead of a string

func (HashedUpdateBatch) Put 

func (h HashedUpdateBatch) Put(ns, coll string, key []byte, value []byte, version *version.Height)

Put overrides the function in UpdateMap for allowing the key to be a []byte instead of a string

func (HashedUpdateBatch) PutValHashAndMetadata 

func (h HashedUpdateBatch) PutValHashAndMetadata(ns, coll string, key []byte, value []byte, metadata []byte, version *version.Height)

PutValHashAndMetadata adds a key with value and metadata TODO introducing a new function to limit the refactoring. Later in a separate CR, the 'Put' function above should be removed

func (HashedUpdateBatch) ToCompositeKeyMap 

func (h HashedUpdateBatch) ToCompositeKeyMap() map[HashedCompositeKey]*statedb.VersionedValue

ToCompositeKeyMap rearranges the update batch data in the form of a single map

type LevelDBCommonStorageTestEnv 

type LevelDBCommonStorageTestEnv struct {
	// contains filtered or unexported fields
}

LevelDBCommonStorageTestEnv implements TestEnv interface for leveldb based storage

func (*LevelDBCommonStorageTestEnv) Cleanup 

func (env *LevelDBCommonStorageTestEnv) Cleanup()

Cleanup implements corresponding function from interface TestEnv

func (*LevelDBCommonStorageTestEnv) GetDBHandle 

func (env *LevelDBCommonStorageTestEnv) GetDBHandle(id string) DB

GetDBHandle implements corresponding function from interface TestEnv

func (*LevelDBCommonStorageTestEnv) GetName 

func (env *LevelDBCommonStorageTestEnv) GetName() string

GetName implements corresponding function from interface TestEnv

func (*LevelDBCommonStorageTestEnv) Init 

func (env *LevelDBCommonStorageTestEnv) Init(t testing.TB)

Init implements corresponding function from interface TestEnv

type PubUpdateBatch 

type PubUpdateBatch struct {
	*statedb.UpdateBatch
}

PubUpdateBatch contains update for the public data

func NewPubUpdateBatch 

func NewPubUpdateBatch() *PubUpdateBatch

NewPubUpdateBatch creates an empty PubUpdateBatch

type PvtUpdateBatch 

type PvtUpdateBatch struct {
	UpdateMap
}

PvtUpdateBatch contains updates for the private data

func NewPvtUpdateBatch 

func NewPvtUpdateBatch() *PvtUpdateBatch

NewPvtUpdateBatch creates an empty PvtUpdateBatch

func (PvtUpdateBatch) ToCompositeKeyMap 

func (p PvtUpdateBatch) ToCompositeKeyMap() map[PvtdataCompositeKey]*statedb.VersionedValue

ToCompositeKeyMap rearranges the update batch data in the form of a single map

type PvtdataCompositeKey 

type PvtdataCompositeKey struct {
	Namespace      string
	CollectionName string
	Key            string
}

PvtdataCompositeKey encloses Namespace, CollectionName and Key components

type TestEnv 

type TestEnv interface {
	Init(t testing.TB)
	GetDBHandle(id string) DB
	GetName() string
	Cleanup()
}

TestEnv - an interface that a test environment implements

type UpdateBatch 

type UpdateBatch struct {
	PubUpdates  *PubUpdateBatch
	HashUpdates *HashedUpdateBatch
	PvtUpdates  *PvtUpdateBatch
}

UpdateBatch encapsulates the updates to Public, Private, and Hashed data. This is expected to contain a consistent set of updates

func NewUpdateBatch 

func NewUpdateBatch() *UpdateBatch

NewUpdateBatch creates and empty UpdateBatch

type UpdateMap 

type UpdateMap map[string]nsBatch

UpdateMap maintains entries of tuple <Namespace, UpdatesForNamespace>

func (UpdateMap) Contains 

func (b UpdateMap) Contains(ns, coll, key string) bool

Contains returns true if the given <ns,coll,key> tuple is present in the batch

func (UpdateMap) Delete 

func (b UpdateMap) Delete(ns, coll, key string, version *version.Height)

Delete adds a delete marker in the batch for a given combination of namespace and collection name

func (UpdateMap) Get 

func (b UpdateMap) Get(ns, coll, key string) *statedb.VersionedValue

Get retrieves the value from the batch for a given combination of namespace and collection name

func (UpdateMap) IsEmpty 

func (b UpdateMap) IsEmpty() bool

IsEmpty returns true if there exists any updates

func (UpdateMap) Put 

func (b UpdateMap) Put(ns, coll, key string, value []byte, version *version.Height)

Put sets the value in the batch for a given combination of namespace and collection name

func (UpdateMap) PutValAndMetadata 

func (b UpdateMap) PutValAndMetadata(ns, coll, key string, value []byte, metadata []byte, version *version.Height)

PutValAndMetadata adds a key with value and metadata

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