/// <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>
private async Task ReadDownloadResponse(HttpWebResponse response, AsyncArgsWrapper wrapper)
{
try
{
if (response.StatusCode == HttpStatusCode.OK)
{
Stream responseStream = response.GetResponseStream();
// Create the SyncReader
this.syncReader = (SerializationFormat == SerializationFormat.ODataAtom)
? new ODataAtomReader(responseStream, this.knownTypes)
: (SyncReader) new ODataJsonReader(responseStream, this.knownTypes);
await Task.Factory.StartNew(() =>
{
// Read the response
while (syncReader.Next())
{
switch (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 CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
response.StatusCode,
response.StatusDescription));
}
}
catch (Exception e)
{
if (ExceptionUtility.IsFatal(e))
{
throw;
}
wrapper.Error = e;
}
}
static void Main()
{
Stopwatch stopWatch = Stopwatch.StartNew();
AsyncReader asyncReader = new AsyncReader(filePath);
asyncReader.MainAsync().GetAwaiter().GetResult();
stopWatch.Stop();
string resultAsync = ($"{stopWatch.Elapsed}");
stopWatch.Start();
SyncReader syncReader = new SyncReader(filePath);
syncReader.MainSync();
stopWatch.Stop();
string resultSync = ($"{stopWatch.Elapsed}");
Console.WriteLine($"\nAsync \t\t {resultAsync}\nSync \t\t {resultSync}");
}
Response IDnsClient.Process(Request request)
{
if (object.ReferenceEquals(null, request))
{
throw new ArgumentNullException("request");
}
// create request datagram, prefixed with the two byte length field
Datagram qdata = Datagram.GetPrefixed(request.Data);
NetworkStream ns = base.GetStream();
if (RequestSending != null)
{
RequestSending(this, new MessageEventArgs(request, ns, (IPEndPoint)Client.RemoteEndPoint));
}
// LogMessage
LogRequest(qdata.Length);
// send prefixed request message
request.SetTimestamp();
ns.Write(qdata, 0, qdata.Length);
// read response
SyncReader reader = new SyncReader(ns);
for (reader.Start(); reader.Next();)
{
;
}
Response response = Response.Create((Datagram)reader.Data, DateTime.Now);
// LogMessage
LogResponse(response);
return(response);
}
/// <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);
}
}
/// <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();
// CreateInstance the SyncReader
if (ApplicationContext.Current.Settings.BitMobileFormatterDisabled)
{
_syncReader = new ODataAtomReader(responseStream, _knownTypes);
}
else
{
_syncReader = new BMReader(responseStream, _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;
}
}
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);
}
}
Response IDnsClient.Process(Request request)
{
if (object.ReferenceEquals(null, request))
throw new ArgumentNullException("request");
// create request datagram, prefixed with the two byte length field
Datagram qdata = Datagram.GetPrefixed(request.Data);
NetworkStream ns = base.GetStream();
if (RequestSending != null)
RequestSending(this, new MessageEventArgs(request, ns, (IPEndPoint)Client.RemoteEndPoint));
// LogMessage
LogRequest(qdata.Length);
// send prefixed request message
request.SetTimestamp();
ns.Write(qdata, 0, qdata.Length);
// read response
SyncReader reader = new SyncReader(ns);
for (reader.Start(); reader.Next(); ) ;
Response response = Response.Create((Datagram)reader.Data, DateTime.Now);
// LogMessage
LogResponse(response);
return response;
}
/// <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);
}
}
private object ProcessUploadRequest(HttpWebRequest webRequest, CacheRequest request)
{
using (Stream memoryStream = new MemoryStream())
{
// Create a SyncWriter to write the contents
this._syncWriter = new ODataAtomWriter(base.BaseUri);
this._syncWriter.StartFeed(true, request.KnowledgeBlob ?? new byte[0]);
foreach (IOfflineEntity entity in request.Changes)
{
// Skip tombstones that dont have a ID element.
if (entity.ServiceMetadata.IsTombstone && string.IsNullOrEmpty(entity.ServiceMetadata.Id))
{
continue;
}
string tempId = null;
// Check to see if this is an insert. i.e ServiceMetadata.Id is null or empty
if (string.IsNullOrEmpty(entity.ServiceMetadata.Id))
{
if (TempIdToEntityMapping == null)
{
TempIdToEntityMapping = new Dictionary <string, IOfflineEntity>();
}
tempId = Guid.NewGuid().ToString();
TempIdToEntityMapping.Add(tempId, entity);
}
this._syncWriter.AddItem(entity, tempId);
}
this._syncWriter.WriteFeed(XmlWriter.Create(memoryStream));
memoryStream.Flush();
// Set the content length
webRequest.ContentLength = memoryStream.Position;
using (Stream requestStream = webRequest.GetRequestStream())
{
CopyStreamContent(memoryStream, requestStream);
// Close the request stream
requestStream.Flush();
requestStream.Close();
}
}
// Fire the Before request handler
this.FirePreRequestHandler(webRequest);
// Get the response
HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
if (webResponse.StatusCode == HttpStatusCode.OK)
{
ChangeSetResponse changeSetResponse = new ChangeSetResponse();
using (Stream responseStream = webResponse.GetResponseStream())
{
// Create the SyncReader
this._syncReader = new ODataAtomReader(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(TempIdToEntityMapping, entity, tempId, changeSetResponse);
}
// 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(TempIdToEntityMapping, conflictEntity, tempId, changeSetResponse);
}
// Add conflict
changeSetResponse.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))
{
changeSetResponse.AddUpdatedItem(ackedEntity);
}
break;
case ReaderItemType.SyncBlob:
changeSetResponse.ServerBlob = this._syncReader.GetServerBlob();
break;
}
}
}
if (TempIdToEntityMapping != null && 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 permanant Id for the following tempId's: ");
builder.Append(string.Join(",", TempIdToEntityMapping.Keys.ToArray()));
throw new CacheControllerException(builder.ToString());
}
this.FirePostResponseHandler(webResponse);
webResponse.Close();
return(changeSetResponse);
}
else
{
throw new CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
webResponse.StatusCode,
webResponse.StatusDescription));
}
}
private object ProcessDownloadRequest(HttpWebRequest webRequest, CacheRequest request)
{
using (Stream memoryStream = new MemoryStream())
{
// Create a SyncWriter to write the contents
this._syncWriter = new ODataAtomWriter(base.BaseUri);
this._syncWriter.StartFeed(true, request.KnowledgeBlob ?? new byte[0]);
this._syncWriter.WriteFeed(XmlWriter.Create(memoryStream));
memoryStream.Flush();
webRequest.ContentLength = memoryStream.Position;
Stream requestStream = webRequest.GetRequestStream();
CopyStreamContent(memoryStream, requestStream);
requestStream.Flush();
requestStream.Close();
// Fire the Before request handler
this.FirePreRequestHandler(webRequest);
}
// Get the response
HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
if (webResponse.StatusCode == HttpStatusCode.OK)
{
ChangeSet changeSet = new ChangeSet();
using (Stream responseStream = webResponse.GetResponseStream())
{
// Create the SyncReader
this._syncReader = new ODataAtomReader(responseStream, this._knownTypes);
// Read the response
while (this._syncReader.Next())
{
switch (this._syncReader.ItemType)
{
case ReaderItemType.Entry:
changeSet.AddItem(this._syncReader.GetItem());
break;
case ReaderItemType.SyncBlob:
changeSet.ServerBlob = this._syncReader.GetServerBlob();
break;
case ReaderItemType.HasMoreChanges:
changeSet.IsLastBatch = !this._syncReader.GetHasMoreChangesValue();
break;
}
}
this.FirePostResponseHandler(webResponse);
}
webResponse.Close();
return(changeSet);
}
else
{
throw new CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
webResponse.StatusCode,
webResponse.StatusDescription));
}
}
/// <summary>
/// Callback for the Upload HttpWebRequest.BeginGetResponse call
/// </summary>
/// <param name="task">IAsyncResult object</param>
async Task OnUploadGetResponseCompleted(Task <WebResponse> task, AsyncArgsWrapper wrapper)
{
wrapper.UploadResponse = new ChangeSetResponse();
HttpWebResponse response = null;
try
{
try
{
response = await task.ConfigureAwait(false) 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);
}
}
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);
}
}
}
/// <summary>
/// Callback for the Upload HttpWebRequest.BeginGetResponse call
/// </summary>
private async Task ReadUploadResponse(HttpWebResponse response, AsyncArgsWrapper wrapper)
{
try
{
if (response.StatusCode == HttpStatusCode.OK)
{
Stream responseStream = response.GetResponseStream();
this.syncReader = (SerializationFormat == SerializationFormat.ODataAtom)
? new ODataAtomReader(responseStream, this.knownTypes)
: (SyncReader) new ODataJsonReader(responseStream, this.knownTypes);
// Read the response
await Task.Factory.StartNew(() =>
{
while (syncReader.Next())
{
switch (syncReader.ItemType)
{
case ReaderItemType.Entry:
IOfflineEntity entity = syncReader.GetItem();
IOfflineEntity ackedEntity = entity;
string tempId = null;
// If conflict only one temp ID should be set
if (syncReader.HasTempId() && syncReader.HasConflictTempId())
{
throw new CacheControllerException(
string.Format(
"Service returned a TempId '{0}' in both live and conflicting entities.",
syncReader.GetTempId()));
}
// Validate the live temp ID if any, before adding anything to the offline context
if (syncReader.HasTempId())
{
tempId = syncReader.GetTempId();
CheckEntityServiceMetadataAndTempIds(wrapper, entity, tempId);
}
// If conflict
if (syncReader.HasConflict())
{
Conflict conflict = syncReader.GetConflict();
IOfflineEntity conflictEntity = (conflict is SyncConflict)
? ((SyncConflict)conflict).LosingEntity
: ((SyncError)conflict).ErrorEntity;
// Validate conflict temp ID if any
if (syncReader.HasConflictTempId())
{
tempId = 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 (syncReader.HasConflictTempId() && entity.GetServiceMetadata().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.GetServiceMetadata().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 = syncReader.GetServerBlob();
break;
}
}
});
if (wrapper.TempIdToEntityMapping != null && wrapper.TempIdToEntityMapping.Count != 0)
{
// The client sent some inserts which werent ack'd by the service. Throw.
var 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.UploadResponse.Error = new CacheControllerException(
string.Format("Remote service returned error status. Status: {0}, Description: {1}",
response.StatusCode,
response.StatusDescription));
}
}
catch (Exception e)
{
if (ExceptionUtility.IsFatal(e))
{
throw;
}
wrapper.Error = e;
}
}
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);
}
}
}
