public static void RestoreIndexFile(string fileStorageName, AddFileBehaviour addFileBehaviour, ExposeProgressDelegate exposeProgressDelegate)
{
//
// the following method also checks whether the index file exists or not,
// if exists, it throws an exception
//
CreateNewFileStorage_IndexFile(FilenameFactory.GetFileStorageIndexFilename(fileStorageName));
var fileStorageHandler = new FileStorageHandler(fileStorageName, VersionBehaviour.ValidateVersion);
fileStorageHandler.RestoreIndexFile(addFileBehaviour, StreamStateBehaviour.OpenNewStreamForReadingAndWriting, StreamStateBehaviour.OpenNewStreamForReading, exposeProgressDelegate);
}
public void ExportToOtherFileStorage(Guid dataIdentifier, FileStorageHandler targetFileStorageHandler, AddFileBehaviour addFileBehaviour, StreamStateBehaviour sourceIndexStreamStateBehaviour, StreamStateBehaviour sourceDataStreamStateBehaviour, StreamStateBehaviour targetIndexStreamStateBehaviour, StreamStateBehaviour targetDataStreamStateBehaviour)
{
if (targetFileStorageHandler.FileStorageName.Equals(FileStorageName))
{
throw new NotSupportedException(string.Format("Cannot export file from a filestorage to another filestorage with the same name ({0})", FileStorageName));
}
byte[] fileData = GetFileByteData(dataIdentifier, sourceIndexStreamStateBehaviour, sourceDataStreamStateBehaviour);
MetaDataContainer metaDataContainer = GetMetaDataContainer(dataIdentifier, sourceIndexStreamStateBehaviour, sourceDataStreamStateBehaviour);
targetFileStorageHandler.StoreBytes(dataIdentifier, fileData, metaDataContainer.CustomMetaData, addFileBehaviour, targetIndexStreamStateBehaviour, targetDataStreamStateBehaviour);
}
public static void Replicate(string sourcefileStorageName, string targetfileStorageName, ReplicateBehaviour replicateBehaviour, AddFileBehaviour addFileBehaviour, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegatePhase1, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegatePhase2)
{
FileStorageHandler sourceFileStorageHandler = FileStorageHandler.Open(sourcefileStorageName);
switch (replicateBehaviour)
{
case ReplicateBehaviour.AddToExistingStorage:
//
// nothing to check here
//
break;
case ReplicateBehaviour.ReplicateToNewStorage:
//
// ensure target does not yet exist
//
Create(targetfileStorageName, CreateFileStorageBehaviour.ThrowExceptionWhenExists);
break;
default:
throw new NotSupportedException(string.Format("Unsupported replicate behaviour {0}", replicateBehaviour));
}
FileStorageHandler targetFileStorageHandler = FileStorageHandler.Open(targetfileStorageName);
//
// open source streams
//
using (sourceFileStorageHandler.IndexStream = FileStreamFactory.CreateFileStream(sourceFileStorageHandler.IndexFilename, StreamStateBehaviour.OpenNewStreamForReading))
{
using (sourceFileStorageHandler.DataStream = FileStreamFactory.CreateFileStream(sourceFileStorageHandler.DataFilename, StreamStateBehaviour.OpenNewStreamForReading))
{
//
// open target streams
//
using (targetFileStorageHandler.IndexStream = FileStreamFactory.CreateFileStream(targetFileStorageHandler.IndexFilename, StreamStateBehaviour.OpenNewStreamForReadingAndWriting))
{
using (targetFileStorageHandler.DataStream = FileStreamFactory.CreateFileStream(targetFileStorageHandler.DataFilename, StreamStateBehaviour.OpenNewStreamForReadingAndWriting))
{
List<Guid> allIdentifiers = sourceFileStorageHandler.GetAllDataIdentifiersBasedUponFileStorageIndexFile(StreamStateBehaviour.UseExistingStream, exposeProgressDelegatePhase1);
//
// start replicate process
//
foreach (Guid dataIdentifier in allIdentifiers)
{
sourceFileStorageHandler.ExportToOtherFileStorage(dataIdentifier, targetFileStorageHandler, addFileBehaviour, StreamStateBehaviour.UseExistingStream, StreamStateBehaviour.UseExistingStream, StreamStateBehaviour.UseExistingStream, StreamStateBehaviour.UseExistingStream);
if (exposeProgressDelegatePhase2 != null)
{
exposeProgressDelegatePhase2.Invoke(dataIdentifier);
}
}
if (exposeProgressDelegatePhase2 != null)
{
exposeProgressDelegatePhase2.Invoke(true);
}
}
}
}
}
}
public static void RestoreIndexFile(string fileStorageName, AddFileBehaviour addFileBehaviour, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegate)
{
FileStorageHandler.RestoreIndexFile(fileStorageName, addFileBehaviour, exposeProgressDelegate);
}
public static List<Guid> GetAllDataIdentifiersBasedUponFileStorageIndexFile(string fileStorageName, FileStorageHandler.ExposeProgressDelegate notificationDelegate)
{
FileStorageHandler fileStorageHandler = FileStorageHandler.Open(fileStorageName);
return fileStorageHandler.GetAllDataIdentifiersBasedUponFileStorageIndexFile(StreamStateBehaviour.OpenNewStreamForReading, notificationDelegate);
}
/// <summary>
/// Makes a clone of a source filestorage, and re-allocates the data identifiers in the destination filestorage (the first
/// data identifier will get 0001, the next one 0002, etc. Next to outputting a new target filestorage with new indexes,
/// the method also produces a sql file that should be used to update your DAL logic, since the references need to be
/// updated too ofcourse.
/// </summary>
public static void Upgrade(string sourceFileStorageName, string destinationFileStorageName, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegateA, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegateB)
{
Create(destinationFileStorageName, CreateFileStorageBehaviour.ThrowExceptionWhenExists);
FileStorageHandler sourceFileStorageHandler = FileStorageHandler.Open(sourceFileStorageName, VersionBehaviour.BypassVersionCheck);
FileStorageHandler destinationFileStorageHandler = FileStorageHandler.Open(destinationFileStorageName);
List<Guid> dataIdentifiers = sourceFileStorageHandler.GetAllDataIdentifiersBasedUponFileStorageIndexFile(StreamStateBehaviour.OpenNewStreamForReading, exposeProgressDelegateA);
for (int currentDataIdentifierIndex = 0; currentDataIdentifierIndex < dataIdentifiers.Count; currentDataIdentifierIndex++)
{
Guid currentSourceDataIdentifier = dataIdentifiers[currentDataIdentifierIndex];
byte[] theBytes = sourceFileStorageHandler.GetFileByteData(currentSourceDataIdentifier, StreamStateBehaviour.OpenNewStreamForReading, StreamStateBehaviour.OpenNewStreamForReading);
ICustomMetaData customMetaData = sourceFileStorageHandler.SupportsFeature(FileStorageFeatureEnum.StoreMetaData)
? sourceFileStorageHandler.GetMetaDataContainer(currentSourceDataIdentifier, StreamStateBehaviour.OpenNewStreamForReading, StreamStateBehaviour.OpenNewStreamForReading).CustomMetaData
: new EmptyCustomMetaData();
Guid currentDestinationDataIdentifier = currentSourceDataIdentifier;
//
// store item in destination
//
destinationFileStorageHandler.StoreBytes(currentDestinationDataIdentifier, theBytes, customMetaData, AddFileBehaviour.ThrowExceptionWhenAlreadyExists, StreamStateBehaviour.OpenNewStreamForReadingAndWriting, StreamStateBehaviour.OpenNewStreamForReadingAndWriting);
if (exposeProgressDelegateB != null)
{
exposeProgressDelegateB.Invoke(currentDestinationDataIdentifier);
}
}
}
/// <summary>
/// Makes a clone of a source filestorage, and re-allocates the data identifiers in the destination filestorage (the first
/// data identifier will get 0001, the next one 0002, etc. Next to outputting a new target filestorage with new indexes,
/// the method also produces a sql file that should be used to update your DAL logic, since the references need to be
/// updated too ofcourse.
/// </summary>
public static void DefragDataIdentifiers(string sourceFileStorageName, string destinationFileStorageName, string sqlTable, string sqlColumn, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegateA, FileStorageHandler.ExposeProgressDelegate exposeProgressDelegateB)
{
Create(destinationFileStorageName, CreateFileStorageBehaviour.ThrowExceptionWhenExists);
string sqlOutputFileName = destinationFileStorageName + ".FileStorage.index.fc.sql";
if (File.Exists(sqlOutputFileName))
{
throw new Exception(string.Format("File {0} already exists", sqlOutputFileName));
}
FileStorageHandler sourceFileStorageHandler = FileStorageHandler.Open(sourceFileStorageName);
FileStorageHandler destinationFileStorageHandler = FileStorageHandler.Open(destinationFileStorageName);
using (StreamWriter sw = File.CreateText(sqlOutputFileName))
{
sw.WriteLine("-- SQL Patch script to adjust the dataidentifiers");
List<Guid> dataIdentifiers = sourceFileStorageHandler.GetAllDataIdentifiersBasedUponFileStorageIndexFile(StreamStateBehaviour.OpenNewStreamForReading, exposeProgressDelegateA);
for (int currentDataIdentifierIndex = 0; currentDataIdentifierIndex < dataIdentifiers.Count; currentDataIdentifierIndex++)
{
Guid currentSourceDataIdentifier = dataIdentifiers[currentDataIdentifierIndex];
byte[] theBytes = sourceFileStorageHandler.GetFileByteData(currentSourceDataIdentifier, StreamStateBehaviour.OpenNewStreamForReading, StreamStateBehaviour.OpenNewStreamForReading);
ICustomMetaData customMetaData = sourceFileStorageHandler.SupportsFeature(FileStorageFeatureEnum.StoreMetaData)
? sourceFileStorageHandler.GetMetaDataContainer(currentSourceDataIdentifier, StreamStateBehaviour.OpenNewStreamForReading, StreamStateBehaviour.OpenNewStreamForReading).CustomMetaData
: new EmptyCustomMetaData();
//
// determine the new identifier
//
int b1AsInt = (currentDataIdentifierIndex >> 24) & 255;
var b1 = (byte) b1AsInt;
int b2AsInt = (currentDataIdentifierIndex >> 16) & 255;
var b2 = (byte) b2AsInt;
int b3AsInt = (currentDataIdentifierIndex >> 8) & 255;
var b3 = (byte) b3AsInt;
int b4AsInt = (currentDataIdentifierIndex >> 0) & 255;
var b4 = (byte) b4AsInt;
var currentDestinationDataIdentifier = new Guid(0, 0, 0, 0, 0, 0, 0, b1, b2, b3, b4);
string line = String.Format("update {0} set {1}='{2}' where {1}='{3}'", sqlTable, sqlColumn, currentSourceDataIdentifier, currentDestinationDataIdentifier);
sw.WriteLine(line);
//
// store item in destination
//
destinationFileStorageHandler.StoreBytes(currentDestinationDataIdentifier, theBytes, customMetaData, AddFileBehaviour.ThrowExceptionWhenAlreadyExists, StreamStateBehaviour.OpenNewStreamForReadingAndWriting, StreamStateBehaviour.OpenNewStreamForReadingAndWriting);
if (exposeProgressDelegateB != null)
{
exposeProgressDelegateB.Invoke(currentDestinationDataIdentifier);
}
}
sw.WriteLine("-- EOF");
}
}
