/// <summary>
/// Callback for the Download HttpWebRequest.beginGetRequestStream. Deserializes the response feed to
/// retrieve the list of IOfflineEntity objects and constructs an ChangeSet for that.
/// </summary>
/// <param name="asyncResult">IAsyncResult object</param>
void OnDownloadGetResponseCompleted(IAsyncResult asyncResult)
{
AsyncArgsWrapper wrapper = asyncResult.AsyncState as AsyncArgsWrapper;
wrapper.DownloadResponse = new ChangeSet();
HttpWebResponse response = null;
try
{
try
{
response = wrapper.WebRequest.EndGetResponse(asyncResult) as HttpWebResponse;
}
catch (WebException we)
{
wrapper.Error = we;
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
return;
}
catch (SecurityException se)
{
wrapper.Error = se;
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
return;
}
if (response.StatusCode == HttpStatusCode.OK)
{
Stream responseStream = response.GetResponseStream();
// Create the SyncReader
this._syncReader = (base.SerializationFormat == ClientServices.SerializationFormat.ODataAtom)
? (SyncReader)new ODataAtomReader(responseStream, this._knownTypes)
: (SyncReader)new ODataJsonReader(responseStream, this._knownTypes);
// Read the response
while (this._syncReader.Next())
{
switch (this._syncReader.ItemType)
{
case ReaderItemType.Entry:
wrapper.DownloadResponse.AddItem(this._syncReader.GetItem());
break;
case ReaderItemType.SyncBlob:
wrapper.DownloadResponse.ServerBlob = this._syncReader.GetServerBlob();
break;
case ReaderItemType.HasMoreChanges:
wrapper.DownloadResponse.IsLastBatch = !this._syncReader.GetHasMoreChangesValue();
break;
}
}
wrapper.WebResponse = response;
// Invoke user code on the correct synchronization context.
this.FirePostResponseHandler(wrapper);
}
else
{
wrapper.Error = new CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
response.StatusCode,
response.StatusDescription));
}
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
}
catch (Exception e)
{
if (ExceptionUtility.IsFatal(e))
{
throw;
}
wrapper.Error = e;
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
}
}
/// <summary>
/// Callback for the Upload HttpWebRequest.BeginGetResponse call
/// </summary>
/// <param name="asyncResult">IAsyncResult object</param>
void OnUploadGetResponseCompleted(IAsyncResult asyncResult)
{
AsyncArgsWrapper wrapper = asyncResult.AsyncState as AsyncArgsWrapper;
wrapper.UploadResponse = new ChangeSetResponse();
HttpWebResponse response = null;
try
{
try
{
response = wrapper.WebRequest.EndGetResponse(asyncResult) as HttpWebResponse;
}
catch (WebException we)
{
wrapper.UploadResponse.Error = we;
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
return;
}
catch (SecurityException se)
{
wrapper.UploadResponse.Error = se;
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
return;
}
if (response.StatusCode == HttpStatusCode.OK)
{
Stream responseStream = response.GetResponseStream();
// Create the SyncReader
this._syncReader = (base.SerializationFormat == ClientServices.SerializationFormat.ODataAtom)
? (SyncReader)new ODataAtomReader(responseStream, this._knownTypes)
: (SyncReader)new ODataJsonReader(responseStream, this._knownTypes);
// Read the response
while (this._syncReader.Next())
{
switch (this._syncReader.ItemType)
{
case ReaderItemType.Entry:
IOfflineEntity entity = this._syncReader.GetItem();
IOfflineEntity ackedEntity = entity;
string tempId = null;
// If conflict only one temp ID should be set
if (this._syncReader.HasTempId() && this._syncReader.HasConflictTempId())
{
throw new CacheControllerException(string.Format("Service returned a TempId '{0}' in both live and conflicting entities.",
this._syncReader.GetTempId()));
}
// Validate the live temp ID if any, before adding anything to the offline context
if (this._syncReader.HasTempId())
{
tempId = this._syncReader.GetTempId();
CheckEntityServiceMetadataAndTempIds(wrapper, entity, tempId);
}
// If conflict
if (this._syncReader.HasConflict())
{
Conflict conflict = this._syncReader.GetConflict();
IOfflineEntity conflictEntity = (conflict is SyncConflict) ?
((SyncConflict)conflict).LosingEntity : ((SyncError)conflict).ErrorEntity;
// Validate conflict temp ID if any
if (this._syncReader.HasConflictTempId())
{
tempId = this._syncReader.GetConflictTempId();
CheckEntityServiceMetadataAndTempIds(wrapper, conflictEntity, tempId);
}
// Add conflict
wrapper.UploadResponse.AddConflict(conflict);
//
// If there is a conflict and the tempId is set in the conflict entity then the client version lost the
// conflict and the live entity is the server version (ServerWins)
//
if (this._syncReader.HasConflictTempId() && entity.ServiceMetadata.IsTombstone)
{
//
// This is a ServerWins conflict, or conflict error. The winning version is a tombstone without temp Id
// so there is no way to map the winning entity with a temp Id. The temp Id is in the conflict so we are
// using the conflict entity, which has the PK, to build a tombstone entity used to update the offline context
//
// In theory, we should copy the service metadata but it is the same end result as the service fills in
// all the properties in the conflict entity
//
// Add the conflict entity
conflictEntity.ServiceMetadata.IsTombstone = true;
ackedEntity = conflictEntity;
}
}
// Add ackedEntity to storage. If ackedEntity is still equal to entity then add non-conflict entity.
if (!String.IsNullOrEmpty(tempId)) {
wrapper.UploadResponse.AddUpdatedItem(ackedEntity);
}
break;
case ReaderItemType.SyncBlob:
wrapper.UploadResponse.ServerBlob = this._syncReader.GetServerBlob();
break;
}
}
if (wrapper.TempIdToEntityMapping != null && wrapper.TempIdToEntityMapping.Count != 0)
{
// The client sent some inserts which werent ack'd by the service. Throw.
StringBuilder builder = new StringBuilder("Server did not acknowledge with a permanent Id for the following tempId's: ");
builder.Append(string.Join(",", wrapper.TempIdToEntityMapping.Keys.ToArray()));
throw new CacheControllerException(builder.ToString());
}
wrapper.WebResponse = response;
// Invoke user code on the correct synchronization context.
this.FirePostResponseHandler(wrapper);
}
else
{
wrapper.UploadResponse.Error = new CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
response.StatusCode,
response.StatusDescription));
}
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
}
catch (Exception e)
{
if (ExceptionUtility.IsFatal(e))
{
throw;
}
wrapper.Error = e;
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
}
}
/// <summary>
/// Callback for the Download HttpWebRequest.beginGetRequestStream. Deserializes the response feed to
/// retrieve the list of IOfflineEntity objects and constructs an ChangeSet for that.
/// </summary>
/// <param name="asyncResult">IAsyncResult object</param>
void OnDownloadGetResponseCompleted(IAsyncResult asyncResult)
{
AsyncArgsWrapper wrapper = asyncResult.AsyncState as AsyncArgsWrapper;
wrapper.DownloadResponse = new ChangeSet();
HttpWebResponse response = null;
try
{
try
{
response = wrapper.WebRequest.EndGetResponse(asyncResult) as HttpWebResponse;
if (String.IsNullOrEmpty(behaviors.UserId))
behaviors.UserId = response.Headers["userid"];
if (string.IsNullOrWhiteSpace(behaviors.UserEmail))
behaviors.UserEmail = response.Headers["email"];
behaviors.ResourceVersion = response.Headers["resourceversion"];
}
catch (WebException we)
{
wrapper.Error = we;
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
return;
}
catch (SecurityException se)
{
wrapper.Error = se;
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
return;
}
if (response.StatusCode == HttpStatusCode.OK)
{
behaviors.SaveUserSession();
int contentLength = (int)response.ContentLength;
if (response.Headers.AllKeys.Contains("unzippedcontentlength"))
{
string value = response.Headers["unzippedcontentlength"];
if (!int.TryParse(value, out contentLength))
throw new WebException("Invalid value of header unzippedcontentlength: " + value);
}
Stream responseStream = new ProgressStream(response.GetResponseStream()
, contentLength
, behaviors.ReadProgressCallback);
// CreateInstance the SyncReader
if (ApplicationContext.Current.Settings.BitMobileFormatterDisabled)
_syncReader = new ODataAtomReader(responseStream, _knownTypes);
else
_syncReader = new BMReader(responseStream, _knownTypes);
// Read the response
wrapper.DownloadResponse.Data = GetDownloadedValues(wrapper);
wrapper.WebResponse = response;
// Invoke user code on the correct synchronization context.
this.FirePostResponseHandler(wrapper);
}
else
{
wrapper.Error = new CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
response.StatusCode,
response.StatusDescription));
}
// If we get here then it means we completed the request. Return to the original caller
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
}
catch (Exception e)
{
if (ExceptionUtility.IsFatal(e))
{
throw;
}
wrapper.Error = e;
this._workerManager.CompleteWorkRequest(wrapper.WorkerRequest, wrapper);
}
}
void OnDownloadCompleted(object sender, NSUrlEventArgs e)
{
try
{
if (e.Error == null)
{
_filePath = e.FilePath.Replace("file://", "").Replace("%20", " ");
NSHttpUrlResponse response = (NSHttpUrlResponse)_currentTask.Response;
if (response != null)
{
HttpStatusCode code = (HttpStatusCode)response.StatusCode;
if (code == HttpStatusCode.OK)
{
NSDictionary headers = response.AllHeaderFields;
if (string.IsNullOrWhiteSpace(_behaviors.UserId))
_behaviors.UserId = headers["userid"].ToString();
if (string.IsNullOrWhiteSpace(_behaviors.UserEmail))
_behaviors.UserEmail = headers["email"].ToString();
_behaviors.ResourceVersion = headers["resourceversion"].ToString();
_behaviors.SaveUserSession();
IIOContext io = IOContext.Current;
if (io.Exists(_filePath))
{
FileStream fileStream = io.FileStream(_filePath, FileMode.Open);
fileStream.Seek(0, SeekOrigin.Begin);
int contentLength;
if (!int.TryParse(headers["unzippedcontentlength"].ToString(), out contentLength))
contentLength = -1;
Stream responseStream = new ProgressStream(fileStream, contentLength, _behaviors.ReadProgressCallback);
// CreateInstance the SyncReader
if (ApplicationContext.Current.Settings.BitMobileFormatterDisabled)
_syncReader = new ODataAtomReader(responseStream, _knownTypes);
else
_syncReader = new BMReader(responseStream, _knownTypes);
_wrapper.DownloadResponse = new ChangeSet();
_wrapper.DownloadResponse.Data = GetDownloadedValues(_wrapper);
}
else
{
_wrapper.Error = new FileNotFoundException(String.Format("Downloaded data file not found! {0}, Description: {1}", e.FilePath, response.Description));
}
}
else
_wrapper.Error = new CacheControllerWebException(string.Format("Remote service returned error status. Status: {0}, Description: {1}", code, response.Description), code);
}
else
_wrapper.Error = new CacheControllerException("Response is null");
}
else
{
var response = _currentTask.Response as NSHttpUrlResponse;
HandleError(e.Error, response);
}
// If we get here then it means we completed the request. Return to the original caller
_workerManager.CompleteWorkRequest(_wrapper.WorkerRequest, _wrapper);
}
catch (Exception ex)
{
if (ExceptionUtility.IsFatal(ex))
{
throw;
}
_wrapper.Error = ex;
_workerManager.CompleteWorkRequest(_wrapper.WorkerRequest, _wrapper);
}
}
void OnUploadCompleted(object sender, NSUrlEventArgs e)
{
_wrapper.UploadResponse = new ChangeSetResponse();
FileStream fileStream = null;
string filePath = null;
try
{
if (e.Error == null)
{
string responseDescription = "response is null";
var response = (NSHttpUrlResponse)_currentTask.Response;
if (response != null)
responseDescription = response.Description;
filePath = e.FilePath.Replace("file://", "").Replace("%20", " ");
IIOContext io = IOContext.Current;
if (io.Exists(filePath))
{
fileStream = io.FileStream(filePath, FileMode.Open);
fileStream.Seek(0, SeekOrigin.Begin);
// CreateInstance the SyncReader
if (ApplicationContext.Current.Settings.BitMobileFormatterDisabled)
_syncReader = new ODataAtomReader(fileStream, _knownTypes);
else
_syncReader = new BMReader(fileStream, _knownTypes);
// Read the response
while (_syncReader.Next())
{
switch (_syncReader.ItemType)
{
case ReaderItemType.Entry:
IOfflineEntity entity = _syncReader.GetItem();
IOfflineEntity ackedEntity = entity;
string tempId = null;
if (_syncReader.HasTempId() && _syncReader.HasConflictTempId())
{
throw new CacheControllerException(string.Format("Service returned a TempId '{0}' in both live and conflicting entities.",
_syncReader.GetTempId()));
}
if (_syncReader.HasTempId())
{
tempId = _syncReader.GetTempId();
CheckEntityServiceMetadataAndTempIds(entity, tempId);
}
if (_syncReader.HasConflict())
{
Conflict conflict = _syncReader.GetConflict();
IOfflineEntity conflictEntity = (conflict is SyncConflict) ?
((SyncConflict)conflict).LosingEntity : ((SyncError)conflict).ErrorEntity;
if (_syncReader.HasConflictTempId())
{
tempId = _syncReader.GetConflictTempId();
CheckEntityServiceMetadataAndTempIds(conflictEntity, tempId);
}
_wrapper.UploadResponse.AddConflict(conflict);
if (_syncReader.HasConflictTempId() && entity.ServiceMetadata.IsTombstone)
{
conflictEntity.ServiceMetadata.IsTombstone = true;
ackedEntity = conflictEntity;
}
}
if (!String.IsNullOrEmpty(tempId))
{
_wrapper.UploadResponse.AddUpdatedItem(ackedEntity);
}
break;
case ReaderItemType.SyncBlob:
_wrapper.UploadResponse.ServerBlob = _syncReader.GetServerBlob();
break;
}
}
}
else
_wrapper.Error = new FileNotFoundException(String.Format("Downloaded data file not found! {0}, Description: {1}", e.FilePath, responseDescription));
}
else
{
var response = _currentTask.Response as NSHttpUrlResponse;
HandleError(e.Error, response);
}
_workerManager.CompleteWorkRequest(_wrapper.WorkerRequest, _wrapper);
}
catch (Exception ex)
{
if (ExceptionUtility.IsFatal(ex))
{
throw;
}
_wrapper.Error = ex;
_workerManager.CompleteWorkRequest(_wrapper.WorkerRequest, _wrapper);
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
if (filePath != null)
IOContext.Current.Delete(filePath);
}
}
void OnDownloadCompleted (object sender, NSUrlEventArgs e)
{
FileStream fileStream = null;
string filePath = null;
try {
if (e.Error == null) {
filePath = e.FilePath.Replace ("file://", "").Replace ("%20", " ");
NSHttpUrlResponse response = (NSHttpUrlResponse)_currentTask.Response;
if (response != null) {
HttpStatusCode code = (HttpStatusCode)response.StatusCode;
if (code == HttpStatusCode.OK) {
NSDictionary headers = response.AllHeaderFields;
if (string.IsNullOrWhiteSpace (_behaviors.UserId))
_behaviors.UserId = headers ["userid"].ToString ();
if (string.IsNullOrWhiteSpace (_behaviors.UserEmail))
_behaviors.UserEmail = headers ["email"].ToString ();
;
_behaviors.SaveUserSession ();
if (File.Exists (filePath)) {
fileStream = File.OpenRead (filePath);
fileStream.Seek (0, SeekOrigin.Begin);
int contentLength;
if (!int.TryParse (headers ["unzippedcontentlength"].ToString (), out contentLength))
contentLength = -1;
Stream responseStream = new ProgressStream (fileStream, contentLength, _behaviors.ReadProgressCallback);
// Create the SyncReader
_syncReader = (SyncReader)new ODataAtomReader (responseStream, _knownTypes);
_wrapper.DownloadResponse = new ChangeSet ();
// Read the response
while (this._syncReader.Next ()) {
switch (this._syncReader.ItemType) {
case ReaderItemType.Entry:
_wrapper.DownloadResponse.AddItem (_syncReader.GetItem ());
break;
case ReaderItemType.SyncBlob:
_wrapper.DownloadResponse.ServerBlob = _syncReader.GetServerBlob ();
break;
case ReaderItemType.HasMoreChanges:
_wrapper.DownloadResponse.IsLastBatch = !_syncReader.GetHasMoreChangesValue ();
break;
}
}
} else {
_wrapper.Error = new FileNotFoundException (String.Format ("Downloaded data file not found! {0}, Description: {1}", e.FilePath, response.Description));
}
} else
_wrapper.Error = new CacheControllerWebException (string.Format ("Remote service returned error status. Status: {0}, Description: {1}", code, response.Description), code);
} else
_wrapper.Error = new CacheControllerException ("Response is null");
} else {
NSHttpUrlResponse response = _currentTask.Response as NSHttpUrlResponse;
HandleError (e.Error, response);
}
// If we get here then it means we completed the request. Return to the original caller
_workerManager.CompleteWorkRequest (_wrapper.WorkerRequest, _wrapper);
} catch (Exception ex) {
if (ExceptionUtility.IsFatal (ex)) {
throw;
}
_wrapper.Error = ex;
_workerManager.CompleteWorkRequest (_wrapper.WorkerRequest, _wrapper);
} finally {
if (fileStream != null) {
fileStream.Close ();
}
if (filePath != null && File.Exists (filePath)) {
File.Delete (filePath);
}
}
}
void OnUploadCompleted (object sender, NSUrlEventArgs e)
{
_wrapper.UploadResponse = new ChangeSetResponse ();
FileStream fileStream = null;
string filePath = null;
try {
if (e.Error == null) {
string responseDescription = "response is null";
NSHttpUrlResponse response = (NSHttpUrlResponse)_currentTask.Response;
if (response != null)
responseDescription = response.Description;
filePath = e.FilePath.Replace ("file://", "").Replace ("%20", " ");
if (File.Exists (filePath)) {
fileStream = File.OpenRead (filePath);
fileStream.Seek (0, SeekOrigin.Begin);
// Create the SyncReader
_syncReader = (SyncReader)new ODataAtomReader (fileStream, _knownTypes);
// Read the response
while (_syncReader.Next ()) {
switch (_syncReader.ItemType) {
case ReaderItemType.Entry:
IOfflineEntity entity = _syncReader.GetItem ();
IOfflineEntity ackedEntity = entity;
string tempId = null;
if (_syncReader.HasTempId () && _syncReader.HasConflictTempId ()) {
throw new CacheControllerException (string.Format ("Service returned a TempId '{0}' in both live and conflicting entities.",
_syncReader.GetTempId ()));
}
if (_syncReader.HasTempId ()) {
tempId = _syncReader.GetTempId ();
CheckEntityServiceMetadataAndTempIds (entity, tempId);
}
if (_syncReader.HasConflict ()) {
Conflict conflict = _syncReader.GetConflict ();
IOfflineEntity conflictEntity = (conflict is SyncConflict) ?
((SyncConflict)conflict).LosingEntity : ((SyncError)conflict).ErrorEntity;
if (this._syncReader.HasConflictTempId ()) {
tempId = _syncReader.GetConflictTempId ();
CheckEntityServiceMetadataAndTempIds (conflictEntity, tempId);
}
_wrapper.UploadResponse.AddConflict (conflict);
if (_syncReader.HasConflictTempId () && entity.ServiceMetadata.IsTombstone) {
conflictEntity.ServiceMetadata.IsTombstone = true;
ackedEntity = conflictEntity;
}
}
if (!String.IsNullOrEmpty (tempId)) {
_wrapper.UploadResponse.AddUpdatedItem (ackedEntity);
}
break;
case ReaderItemType.SyncBlob:
_wrapper.UploadResponse.ServerBlob = _syncReader.GetServerBlob ();
break;
}
}
if (_wrapper.TempIdToEntityMapping != null && _wrapper.TempIdToEntityMapping.Count != 0) {
StringBuilder builder = new StringBuilder ("Server did not acknowledge with a permanent Id for the following tempId's: ");
builder.Append (string.Join (",", _wrapper.TempIdToEntityMapping.Keys.ToArray ()));
throw new CacheControllerException (builder.ToString ());
}
} else
_wrapper.Error = new FileNotFoundException (String.Format ("Downloaded data file not found! {0}, Description: {1}", e.FilePath, responseDescription));
} else
{
NSHttpUrlResponse response = _currentTask.Response as NSHttpUrlResponse;
HandleError (e.Error, response);
}
_workerManager.CompleteWorkRequest (_wrapper.WorkerRequest, _wrapper);
} catch (Exception ex) {
if (ExceptionUtility.IsFatal (ex)) {
throw ex;
}
_wrapper.Error = ex;
_workerManager.CompleteWorkRequest (_wrapper.WorkerRequest, _wrapper);
} finally {
if (fileStream != null) {
fileStream.Close ();
}
if (filePath != null && File.Exists (filePath)) {
File.Delete (filePath);
}
}
}
