// Called by the framework when an item needs to be deleted.
public override void DeleteItem(
ItemFieldDictionary keyAndExpectedVersion,
RecoverableErrorReportingContext recoverableErrorReportingContext,
out bool commitKnowledgeAfterThisItem
)
{
commitKnowledgeAfterThisItem = false;
IDictionary <uint, ItemField> expectedFields = (IDictionary <uint, ItemField>)keyAndExpectedVersion;
string name = (string)expectedFields[ItemFields.CUSTOM_FIELD_NAME].Value;
ApplyingBlobEventArgs args = new ApplyingBlobEventArgs(ChangeType.Delete, name);
EventHandler <ApplyingBlobEventArgs> applyingDelegate = ApplyingChange;
applyingDelegate(this, args);
DateTime expectedLastUpdate = DateTime.FromBinary((long)(ulong)expectedFields[ItemFields.CUSTOM_FIELD_TIMESTAMP].Value);
try
{
DataStore.DeleteFile(name, expectedLastUpdate);
}
catch (ApplicationException e)
{
recoverableErrorReportingContext.RecordRecoverableErrorForChange(new RecoverableErrorData(e));
}
}
// Called by the framework when an item (file) needs to be updated.
public override void UpdateItem(
object itemData,
IEnumerable <SyncId> changeUnitsToUpdate,
ItemFieldDictionary keyAndExpectedVersion,
RecoverableErrorReportingContext recoverableErrorReportingContext,
out ItemFieldDictionary keyAndUpdatedVersion,
out bool commitKnowledgeAfterThisItem
)
{
keyAndUpdatedVersion = null;
commitKnowledgeAfterThisItem = false;
IFileDataRetriever dataRetriever = (IFileDataRetriever)itemData;
IDictionary <uint, ItemField> expectedFields = (IDictionary <uint, ItemField>)keyAndExpectedVersion;
DateTime expectedLastUpdate = DateTime.FromBinary((long)(ulong)expectedFields[ItemFields.CUSTOM_FIELD_TIMESTAMP].Value);
string oldName = (string)expectedFields[ItemFields.CUSTOM_FIELD_NAME].Value;
try
{
Stream dataStream = null;
if (!dataRetriever.FileData.IsDirectory)
{
dataStream = dataRetriever.FileStream;
}
string newName = CreateNewName(dataRetriever.FileData);
SyncedBlobAttributes attrs;
if (IsMoveOrRename(oldName, newName))
{
ApplyingBlobEventArgs args = new ApplyingBlobEventArgs(ChangeType.Rename, oldName, newName);
EventHandler <ApplyingBlobEventArgs> applyingDelegate = ApplyingChange;
applyingDelegate(this, args);
// Handle moves and renames as a delete and create.
DataStore.DeleteFile(oldName, expectedLastUpdate);
attrs = DataStore.InsertFile(dataRetriever.FileData, dataRetriever.RelativeDirectoryPath, dataStream);
}
else
{
ApplyingBlobEventArgs args = new ApplyingBlobEventArgs(ChangeType.Update, dataRetriever.FileData.Name);
EventHandler <ApplyingBlobEventArgs> applyingDelegate = ApplyingChange;
applyingDelegate(this, args);
attrs = DataStore.UpdateFile(oldName, dataRetriever.FileData, dataRetriever.RelativeDirectoryPath, dataStream, expectedLastUpdate);
}
// Record new data after update.
keyAndUpdatedVersion = new ItemFieldDictionary();
keyAndUpdatedVersion.Add(new ItemField(ItemFields.CUSTOM_FIELD_NAME, typeof(string), attrs._name));
keyAndUpdatedVersion.Add(new ItemField(ItemFields.CUSTOM_FIELD_TIMESTAMP, typeof(ulong), (ulong)attrs._lastModifiedTime.ToBinary()));
}
catch (ApplicationException e)
{
recoverableErrorReportingContext.RecordRecoverableErrorForChange(new RecoverableErrorData(e));
}
commitKnowledgeAfterThisItem = false;
}
public static void UploadingFile(object sender, ApplyingBlobEventArgs args)
{
switch (args.ChangeType)
{
case ChangeType.Create:
Console.WriteLine("Creating Azure Blob: {0}...", args.CurrentBlobName);
break;
case ChangeType.Delete:
Console.WriteLine("Deleting Azure Blob: {0}...", args.CurrentBlobName);
break;
case ChangeType.Rename:
Console.WriteLine("Renaming Azure Blob: {0} to {1}...", args.CurrentBlobName, args.NewBlobName);
break;
case ChangeType.Update:
Console.WriteLine("Updating Azure Blob: {0}...", args.CurrentBlobName);
break;
}
}
// Called by the framework when an item (file) needs to be added to the store.
public override void InsertItem(
object itemData,
IEnumerable <SyncId> changeUnitsToCreate,
RecoverableErrorReportingContext recoverableErrorReportingContext,
out ItemFieldDictionary keyAndUpdatedVersion,
out bool commitKnowledgeAfterThisItem
)
{
IFileDataRetriever dataRetriever = (IFileDataRetriever)itemData;
string relativePath = dataRetriever.RelativeDirectoryPath;
keyAndUpdatedVersion = null;
commitKnowledgeAfterThisItem = false;
ApplyingBlobEventArgs args = new ApplyingBlobEventArgs(ChangeType.Create, dataRetriever.FileData.Name);
EventHandler <ApplyingBlobEventArgs> applyingDelegate = ApplyingChange;
applyingDelegate(this, args);
try
{
Stream dataStream = null;
if (!dataRetriever.FileData.IsDirectory)
{
dataStream = dataRetriever.FileStream;
}
SyncedBlobAttributes attrs = DataStore.InsertFile(dataRetriever.FileData, dataRetriever.RelativeDirectoryPath, dataStream);
keyAndUpdatedVersion = new ItemFieldDictionary();
keyAndUpdatedVersion.Add(new ItemField(ItemFields.CUSTOM_FIELD_NAME, typeof(string), attrs._name));
keyAndUpdatedVersion.Add(new ItemField(ItemFields.CUSTOM_FIELD_TIMESTAMP, typeof(ulong), (ulong)attrs._lastModifiedTime.ToBinary()));
}
catch (ApplicationException e)
{
recoverableErrorReportingContext.RecordRecoverableErrorForChange(new RecoverableErrorData(e));
}
}