internal BookmarkScopeHandle(BookmarkScope bookmarkScope)
{
this.bookmarkScope = bookmarkScope;
if (bookmarkScope != null)
{
this.bookmarkScope.IncrementHandleReferenceCount();
}
}
public void CreateBookmarkScope(NativeActivityContext context)
{
this.ThrowIfContextIsNullOrDisposed(context);
if (this.bookmarkScope != null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.CreateBookmarkScopeFailed));
}
this.ThrowIfUninitialized();
this.bookmarkScope = context.CreateBookmarkScope(Guid.Empty, this);
this.bookmarkScope.IncrementHandleReferenceCount();
}
protected internal virtual Bookmark OnResolveBookmark(WorkflowOperationContext context, out BookmarkScope bookmarkScope, out object value)
{
CorrelationMessageProperty property;
if (CorrelationMessageProperty.TryGet(context.OperationContext.IncomingMessageProperties, out property))
{
bookmarkScope = new BookmarkScope(property.CorrelationKey.Value);
}
else
{
bookmarkScope = BookmarkScope.Default;
}
value = context;
return this.bookmark;
}
public bool RemoveBookmark(Bookmark bookmark, BookmarkScope scope, ActivityInstance instanceAttemptingRemove)
{
Fx.Assert(scope != null, "We should never have a null scope.");
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = this.defaultScope;
}
BookmarkManager manager;
if (this.bookmarkManagers.TryGetValue(lookupScope, out manager))
{
return(manager.Remove(bookmark, instanceAttemptingRemove));
}
else
{
return(false);
}
}
internal void InitializeBookmarkScope(NativeActivityContext context, InstanceKey instanceKey)
{
Fx.Assert(context != null, "executionContext cannot be null");
Fx.Assert(instanceKey != null, "instanceKey cannot be null");
if (context.GetExtension <SendReceiveExtension>() != null)
{
if (this.InstanceKey != null && this.InstanceKey.Value != instanceKey.Value)
{
throw FxTrace.Exception.AsError(
new InvalidOperationException(SR.CorrelationHandleInUse(this.InstanceKey.Value, instanceKey.Value)));
}
this.InstanceKey = instanceKey;
}
else
{
if (this.Scope == null)
{
this.bookmarkScopeHandle.CreateBookmarkScope(context, instanceKey.Value);
this.Scope = this.bookmarkScopeHandle.BookmarkScope;
}
else
{
if (this.Scope.IsInitialized)
{
if (this.Scope.Id != instanceKey.Value)
{
throw FxTrace.Exception.AsError(
new InvalidOperationException(SR.CorrelationHandleInUse(this.Scope.Id, instanceKey.Value)));
}
}
else
{
this.Scope.Initialize(context, instanceKey.Value);
}
}
}
}
private void PurgeBookmark(Bookmark bookmark, BookmarkManager nonScopedBookmarkManager)
{
BookmarkManager manager = null;
if (bookmark.Scope != null)
{
BookmarkScope lookupScope = bookmark.Scope;
if (bookmark.Scope.IsDefault)
{
lookupScope = _defaultScope;
}
Fx.Assert(_bookmarkManagers.ContainsKey(bookmark.Scope), "We should have the single bookmark's sub instance registered");
manager = _bookmarkManagers[bookmark.Scope];
}
else
{
manager = nonScopedBookmarkManager;
}
manager.PurgeSingleBookmark(bookmark);
}
protected internal override Bookmark OnResolveBookmark(WorkflowOperationContext context, out BookmarkScope bookmarkScope, out object value)
{
CorrelationMessageProperty correlationMessageProperty;
if (CorrelationMessageProperty.TryGet(context.OperationContext.IncomingMessageProperties, out correlationMessageProperty))
{
bookmarkScope = new BookmarkScope(correlationMessageProperty.CorrelationKey.Value);
}
else
{
bookmarkScope = null;
}
WorkflowHostingResponseContext responseContext = new WorkflowHostingResponseContext(context);
Fx.Assert(context.ServiceEndpoint is WorkflowHostingEndpoint, "serviceEnpoint must be of WorkflowHostingEndpoint type!");
Bookmark bookmark = ((WorkflowHostingEndpoint)context.ServiceEndpoint).OnResolveBookmark(context.Inputs, context.OperationContext, responseContext, out value);
if (bookmark == null)
{
throw FxTrace.Exception.AsError(CreateDispatchFaultException());
}
return(bookmark);
}
public void UnregisterScope(BookmarkScope scope)
{
if ((this.bookmarkManagers == null) || !this.bookmarkManagers.ContainsKey(scope))
{
throw FxTrace.Exception.AsError(new InvalidOperationException(System.Activities.SR.BookmarkScopeNotRegisteredForUnregister));
}
if (this.bookmarkManagers[scope].HasBookmarks)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(System.Activities.SR.BookmarkScopeHasBookmarks));
}
this.bookmarkManagers.Remove(scope);
if (!scope.IsInitialized)
{
this.uninitializedScopes.Remove(scope);
}
else
{
if (this.keysToDisassociate == null)
{
this.keysToDisassociate = new List <InstanceKey>(2);
}
this.keysToDisassociate.Add(new InstanceKey(scope.Id));
}
}
internal BookmarkScope CreateAndRegisterScope(Guid scopeId, BookmarkScopeHandle scopeHandle)
{
if (_bookmarkManagers == null)
{
_bookmarkManagers = new Dictionary <BookmarkScope, BookmarkManager>();
}
BookmarkScope scope = null;
if (scopeId == Guid.Empty)
{
//
// This is the very first activity which started the sub-instance
//
scope = new BookmarkScope(GetNextTemporaryId());
_bookmarkManagers.Add(scope, new BookmarkManager(scope, scopeHandle));
if (TD.CreateBookmarkScopeIsEnabled())
{
TD.CreateBookmarkScope(ActivityUtilities.GetTraceString(scope));
}
if (_uninitializedScopes == null)
{
_uninitializedScopes = new List <BookmarkScope>();
}
_uninitializedScopes.Add(scope);
}
else
{
//
// Try to find one in the existing sub-instances
//
foreach (BookmarkScope eachScope in _bookmarkManagers.Keys)
{
if (eachScope.Id.Equals(scopeId))
{
scope = eachScope;
break;
}
}
//
// We did not find one, e.g. the first receive will get the correlation id from the
// correlation channel
//
if (scope == null)
{
scope = new BookmarkScope(scopeId);
_bookmarkManagers.Add(scope, new BookmarkManager(scope, scopeHandle));
if (TD.CreateBookmarkScopeIsEnabled())
{
TD.CreateBookmarkScope(string.Format(CultureInfo.InvariantCulture, "Id: {0}", ActivityUtilities.GetTraceString(scope)));
}
}
CreateAssociatedKey(scope);
}
return(scope);
}
public BookmarkResumptionResult TryGenerateWorkItem(ActivityExecutor executor, ref Bookmark bookmark, BookmarkScope scope, object value, ActivityInstance isolationInstance, bool nonScopedBookmarksExist, out ActivityExecutionWorkItem workItem)
{
Fx.Assert(scope != null, "We should never have a null sub instance.");
BookmarkManager manager = null;
workItem = null;
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = _defaultScope;
}
// We don't really care about the return value since we'll
// use null to know we should check uninitialized sub instances
_bookmarkManagers.TryGetValue(lookupScope, out manager);
if (manager == null)
{
Fx.Assert(lookupScope != null, "The sub instance should not be default if we are here.");
BookmarkResumptionResult finalResult = BookmarkResumptionResult.NotFound;
// Check the uninitialized sub instances for a matching bookmark
if (_uninitializedScopes != null)
{
for (int i = 0; i < _uninitializedScopes.Count; i++)
{
BookmarkScope uninitializedScope = _uninitializedScopes[i];
Fx.Assert(_bookmarkManagers.ContainsKey(uninitializedScope), "We must always have the uninitialized sub instances.");
Bookmark internalBookmark;
BookmarkCallbackWrapper callbackWrapper;
BookmarkResumptionResult resumptionResult;
if (!_bookmarkManagers[uninitializedScope].TryGetBookmarkFromInternalList(bookmark, out internalBookmark, out callbackWrapper))
{
resumptionResult = BookmarkResumptionResult.NotFound;
}
else if (IsExclusiveScopeUnstable(internalBookmark))
{
resumptionResult = BookmarkResumptionResult.NotReady;
}
else
{
resumptionResult = _bookmarkManagers[uninitializedScope].TryGenerateWorkItem(executor, true, ref bookmark, value, isolationInstance, out workItem);
}
if (resumptionResult == BookmarkResumptionResult.Success)
{
// We are using InitializeBookmarkScopeWithoutKeyAssociation because we know this is a new uninitialized scope and
// the key we would associate is already associated. And if we did the association here, the subsequent call to
// FlushBookmarkScopeKeys would try to flush it out, but it won't have the transaction correct so will hang waiting for
// the transaction that has the PersistenceContext locked to complete. But it won't complete successfully until
// we finish processing here.
InitializeBookmarkScopeWithoutKeyAssociation(uninitializedScope, scope.Id);
// We've found what we were looking for
return(BookmarkResumptionResult.Success);
}
else if (resumptionResult == BookmarkResumptionResult.NotReady)
{
// This uninitialized sub-instance has a matching bookmark but
// it can't currently be resumed. We won't return BookmarkNotFound
// because of this.
finalResult = BookmarkResumptionResult.NotReady;
}
else
{
if (finalResult == BookmarkResumptionResult.NotFound)
{
// If we still are planning on returning failure then
// we'll incur the cost of seeing if this scope is
// stable or not.
if (!IsStable(uninitializedScope, nonScopedBookmarksExist))
{
// There exists an uninitialized scope which is unstable.
// At the very least this means we'll return NotReady since
// this uninitialized scope might eventually contain this
// bookmark.
finalResult = BookmarkResumptionResult.NotReady;
}
}
}
}
}
return(finalResult);
}
else
{
Bookmark bookmarkFromList;
BookmarkCallbackWrapper callbackWrapper;
BookmarkResumptionResult resumptionResult;
if (!manager.TryGetBookmarkFromInternalList(bookmark, out bookmarkFromList, out callbackWrapper))
{
resumptionResult = BookmarkResumptionResult.NotFound;
}
else
{
if (IsExclusiveScopeUnstable(bookmarkFromList))
{
resumptionResult = BookmarkResumptionResult.NotReady;
}
else
{
resumptionResult = manager.TryGenerateWorkItem(executor, true, ref bookmark, value, isolationInstance, out workItem);
}
}
if (resumptionResult == BookmarkResumptionResult.NotFound)
{
if (!IsStable(lookupScope, nonScopedBookmarksExist))
{
resumptionResult = BookmarkResumptionResult.NotReady;
}
}
return(resumptionResult);
}
}
bool IsStable(BookmarkScope scope, bool nonScopedBookmarksExist)
{
Fx.Assert(this.bookmarkManagers.ContainsKey(scope), "The caller should have made sure this scope exists in the bookmark managers dictionary.");
if (nonScopedBookmarksExist)
{
return false;
}
if (this.bookmarkManagers != null)
{
foreach (KeyValuePair<BookmarkScope, BookmarkManager> scopeBookmarks in this.bookmarkManagers)
{
IEquatable<BookmarkScope> comparison = scopeBookmarks.Key;
if (!comparison.Equals(scope))
{
if (scopeBookmarks.Value.HasBookmarks)
{
return false;
}
}
}
}
return true;
}
void CreateAssociatedKey(BookmarkScope newScope)
{
if (this.keysToAssociate == null)
{
this.keysToAssociate = new List<InstanceKey>(2);
}
this.keysToAssociate.Add(new InstanceKey(newScope.Id));
}
public BookmarkScope InitializeBookmarkScopeWithoutKeyAssociation(BookmarkScope scope, Guid id)
{
Fx.Assert(!scope.IsInitialized, "This should have been checked by the caller.");
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = this.defaultScope;
}
if (this.uninitializedScopes == null || !this.uninitializedScopes.Contains(lookupScope))
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.BookmarkScopeNotRegisteredForInitialize));
}
Fx.Assert(this.bookmarkManagers != null, "This is never null if uninitializedScopes is non-null.");
if (this.bookmarkManagers.ContainsKey(new BookmarkScope(id)))
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.BookmarkScopeWithIdAlreadyExists(id)));
}
BookmarkManager bookmarks = this.bookmarkManagers[lookupScope];
this.bookmarkManagers.Remove(lookupScope);
this.uninitializedScopes.Remove(lookupScope);
long temporaryId = lookupScope.TemporaryId;
// We initialize and re-add to our dictionary. We have to
// re-add because the hash has changed.
lookupScope.Id = id;
this.bookmarkManagers.Add(lookupScope, bookmarks);
if (TD.BookmarkScopeInitializedIsEnabled())
{
TD.BookmarkScopeInitialized(temporaryId.ToString(CultureInfo.InvariantCulture), lookupScope.Id.ToString());
}
return lookupScope;
}
public ResumeProtocolBookmarkAsyncResult(WorkflowServiceInstance instance, Bookmark bookmark, object value, BookmarkScope bookmarkScope, bool isResumeProtocolBookmark, TimeSpan timeout, AsyncCallback callback, object state) : base(callback, state)
{
this.instance = instance;
this.bookmark = bookmark;
this.value = value;
this.bookmarkScope = bookmarkScope;
this.timeoutHelper = new TimeoutHelper(timeout);
this.nextIdleTimeoutHelper = new TimeoutHelper(instance.serviceHost.FilterResumeTimeout);
this.isResumeProtocolBookmark = isResumeProtocolBookmark;
base.OnCompleting = onCompleting;
Exception exception = null;
bool flag = true;
try
{
if (this.isResumeProtocolBookmark)
{
flag = this.DoResumeBookmark();
}
else
{
flag = this.WaitForInstanceToBeReady();
}
}
catch (Exception exception2)
{
if (Fx.IsFatal(exception2))
{
throw;
}
exception = exception2;
}
if (flag)
{
base.Complete(true, exception);
}
}
public ResumeProtocolBookmarkAsyncResult(WorkflowServiceInstance instance, Bookmark bookmark, object value, BookmarkScope bookmarkScope, bool isResumeProtocolBookmark, TimeSpan timeout, AsyncCallback callback, object state)
: base(callback, state)
{
this.instance = instance;
this.bookmark = bookmark;
this.value = value;
this.bookmarkScope = bookmarkScope;
this.timeoutHelper = new TimeoutHelper(timeout);
// The value for WorkflowServiceHost.FilterResumeTimeout comes from the AppSetting
// "microsoft:WorkflowServices:FilterResumeTimeoutInSeconds"
this.nextIdleTimeoutHelper = new TimeoutHelper(instance.serviceHost.FilterResumeTimeout);
this.isResumeProtocolBookmark = isResumeProtocolBookmark;
this.OnCompleting = onCompleting;
Exception completionException = null;
bool completeSelf = true;
try
{
if (this.isResumeProtocolBookmark)
{
completeSelf = DoResumeBookmark();
}
else
{
completeSelf = WaitForInstanceToBeReady();
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
completionException = e;
}
if (completeSelf)
{
this.Complete(true, completionException);
}
}
internal BookmarkScopeHandle (BookmarkScope scope)
{
BookmarkScope = scope;
}
public BookmarkResumptionResult TryGenerateWorkItem(ActivityExecutor executor, ref Bookmark bookmark, BookmarkScope scope, object value, System.Activities.ActivityInstance isolationInstance, bool nonScopedBookmarksExist, out ActivityExecutionWorkItem workItem)
{
BookmarkManager manager = null;
Bookmark bookmark3;
BookmarkCallbackWrapper wrapper2;
BookmarkResumptionResult result3;
workItem = null;
BookmarkScope key = scope;
if (scope.IsDefault)
{
key = this.defaultScope;
}
this.bookmarkManagers.TryGetValue(key, out manager);
if (manager == null)
{
BookmarkResumptionResult notFound = BookmarkResumptionResult.NotFound;
if (this.uninitializedScopes != null)
{
for (int i = 0; i < this.uninitializedScopes.Count; i++)
{
Bookmark bookmark2;
BookmarkCallbackWrapper wrapper;
BookmarkResumptionResult notReady;
BookmarkScope scope3 = this.uninitializedScopes[i];
if (!this.bookmarkManagers[scope3].TryGetBookmarkFromInternalList(bookmark, out bookmark2, out wrapper))
{
notReady = BookmarkResumptionResult.NotFound;
}
else if (this.IsExclusiveScopeUnstable(bookmark2))
{
notReady = BookmarkResumptionResult.NotReady;
}
else
{
notReady = this.bookmarkManagers[scope3].TryGenerateWorkItem(executor, true, ref bookmark, value, isolationInstance, out workItem);
}
switch (notReady)
{
case BookmarkResumptionResult.Success:
this.InitializeBookmarkScopeWithoutKeyAssociation(scope3, scope.Id);
return(BookmarkResumptionResult.Success);
case BookmarkResumptionResult.NotReady:
notFound = BookmarkResumptionResult.NotReady;
break;
default:
if ((notFound == BookmarkResumptionResult.NotFound) && !this.IsStable(scope3, nonScopedBookmarksExist))
{
notFound = BookmarkResumptionResult.NotReady;
}
break;
}
}
}
return(notFound);
}
if (!manager.TryGetBookmarkFromInternalList(bookmark, out bookmark3, out wrapper2))
{
result3 = BookmarkResumptionResult.NotFound;
}
else if (this.IsExclusiveScopeUnstable(bookmark3))
{
result3 = BookmarkResumptionResult.NotReady;
}
else
{
result3 = manager.TryGenerateWorkItem(executor, true, ref bookmark, value, isolationInstance, out workItem);
}
if ((result3 == BookmarkResumptionResult.NotFound) && !this.IsStable(key, nonScopedBookmarksExist))
{
result3 = BookmarkResumptionResult.NotReady;
}
return(result3);
}
public BookmarkScopeManager()
{
this.defaultScope = this.CreateAndRegisterScope(Guid.Empty);
}
public void InitializeScope(BookmarkScope scope, Guid id)
{
BookmarkScope newScope = this.InitializeBookmarkScopeWithoutKeyAssociation(scope, id);
this.CreateAssociatedKey(newScope);
}
internal BookmarkManager(BookmarkScope scope, BookmarkScopeHandle scopeHandle)
: this()
{
this.scope = scope;
this.scopeHandle = scopeHandle;
}
private BookmarkResumptionResult ResumeProtocolBookmarkCore(Bookmark bookmark, object value, BookmarkScope bookmarkScope, bool bufferedReceiveEnabled, ref AsyncWaitHandle waitHandle, ref bool ownsLock)
{
BookmarkResumptionResult result;
if (bookmarkScope == null)
{
result = base.Controller.ScheduleBookmarkResumption(bookmark, value);
}
else
{
result = base.Controller.ScheduleBookmarkResumption(bookmark, value, bookmarkScope);
}
if ((result == BookmarkResumptionResult.NotReady) && !bufferedReceiveEnabled)
{
if (waitHandle == null)
{
waitHandle = new AsyncWaitHandle();
}
else
{
waitHandle.Reset();
}
if (this.nextIdleWaiters == null)
{
this.nextIdleWaiters = new List<AsyncWaitHandle>();
}
lock (this.activeOperationsLock)
{
this.nextIdleWaiters.Add(waitHandle);
}
this.ReleaseLock(ref ownsLock);
}
return result;
}
public BookmarkResumptionResult ScheduleBookmarkResumption(Bookmark bookmark, object value, BookmarkScope scope)
{
throw new NotImplementedException();
}
public BookmarkResumptionResult ScheduleBookmarkResumption(Bookmark bookmark, object value, BookmarkScope scope)
{
bool resetRequired = false;
try
{
this.instance.StartOperation(ref resetRequired);
return(this.instance.ScheduleBookmarkResumption(bookmark, value, scope));
}
finally
{
this.instance.FinishOperation(ref resetRequired);
}
}
public ReadOnlyCollection <BookmarkInfo> GetBookmarks(BookmarkScope scope)
{
throw new NotImplementedException();
}
public void InitializeScope(BookmarkScope scope, Guid id)
{
Fx.Assert(!scope.IsInitialized, "This should have been checked by the caller.");
BookmarkScope lookupScope = InitializeBookmarkScopeWithoutKeyAssociation(scope, id);
CreateAssociatedKey(lookupScope);
}
public BookmarkResumptionResult ScheduleBookmarkResumption (Bookmark bookmark,object value,BookmarkScope scope)
{
throw new NotImplementedException ();
}
internal BookmarkScope CreateAndRegisterScope(Guid scopeId, BookmarkScopeHandle scopeHandle)
{
if (this.bookmarkManagers == null)
{
this.bookmarkManagers = new Dictionary<BookmarkScope, BookmarkManager>();
}
BookmarkScope scope = null;
if (scopeId == Guid.Empty)
{
//
// This is the very first activity which started the sub-instance
//
scope = new BookmarkScope(GetNextTemporaryId());
this.bookmarkManagers.Add(scope, new BookmarkManager(scope, scopeHandle));
if (TD.CreateBookmarkScopeIsEnabled())
{
TD.CreateBookmarkScope(ActivityUtilities.GetTraceString(scope));
}
if (this.uninitializedScopes == null)
{
this.uninitializedScopes = new List<BookmarkScope>();
}
this.uninitializedScopes.Add(scope);
}
else
{
//
// Try to find one in the existing sub-instances
//
foreach (BookmarkScope eachScope in this.bookmarkManagers.Keys)
{
if (eachScope.Id.Equals(scopeId))
{
scope = eachScope;
break;
}
}
//
// We did not find one, e.g. the first receive will get the correlation id from the
// correlation channel
//
if (scope == null)
{
scope = new BookmarkScope(scopeId);
this.bookmarkManagers.Add(scope, new BookmarkManager(scope, scopeHandle));
if (TD.CreateBookmarkScopeIsEnabled())
{
TD.CreateBookmarkScope(string.Format(CultureInfo.InvariantCulture, "Id: {0}", ActivityUtilities.GetTraceString(scope)));
}
}
CreateAssociatedKey(scope);
}
return scope;
}
public ReadOnlyCollection<BookmarkInfo> GetBookmarks (BookmarkScope scope)
{
throw new NotImplementedException ();
}
public void UnregisterScope(BookmarkScope scope)
{
Fx.Assert(!scope.IsDefault, "Cannot unregister the default sub instance.");
if (this.bookmarkManagers == null || !this.bookmarkManagers.ContainsKey(scope))
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.BookmarkScopeNotRegisteredForUnregister));
}
if (this.bookmarkManagers[scope].HasBookmarks)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.BookmarkScopeHasBookmarks));
}
this.bookmarkManagers.Remove(scope);
if (!scope.IsInitialized)
{
Fx.Assert(this.uninitializedScopes != null && this.uninitializedScopes.Contains(scope), "Something is wrong with our housekeeping.");
this.uninitializedScopes.Remove(scope);
}
else
{
if (this.keysToDisassociate == null)
{
this.keysToDisassociate = new List<InstanceKey>(2);
}
this.keysToDisassociate.Add(new InstanceKey(scope.Id));
Fx.Assert(this.uninitializedScopes == null || !this.uninitializedScopes.Contains(scope), "We shouldn't have this in the uninitialized list.");
}
}
private BookmarkResumptionResult ScheduleBookmarkResumption(Bookmark bookmark, object value, BookmarkScope scope)
{
this.ValidateScheduleResumeBookmark();
this.TrackResumed();
return(this.executor.TryResumeBookmark(bookmark, value, scope));
}
protected internal override Bookmark OnResolveBookmark(WorkflowOperationContext context, out BookmarkScope bookmarkScope, out object value)
{
CorrelationMessageProperty property;
if (CorrelationMessageProperty.TryGet(context.OperationContext.IncomingMessageProperties, out property))
{
bookmarkScope = new BookmarkScope(property.CorrelationKey.Value);
}
else
{
bookmarkScope = null;
}
WorkflowHostingResponseContext responseContext = new WorkflowHostingResponseContext(context);
Bookmark bookmark = this.hostingEndpoint.OnResolveBookmark(context.Inputs, context.OperationContext, responseContext, out value);
if (bookmark == null)
{
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(WorkflowHostingEndpoint.CreateDispatchFaultException());
}
return bookmark;
}
internal BookmarkManager(BookmarkScope scope, BookmarkScopeHandle scopeHandle)
: this()
{
this.scope = scope;
this.scopeHandle = scopeHandle;
}
public BookmarkScopeManager()
{
_nextTemporaryId = 1;
_defaultScope = CreateAndRegisterScope(Guid.Empty);
}
protected internal override Bookmark OnResolveBookmark(WorkflowOperationContext context, out BookmarkScope bookmarkScope, out object value)
{
CorrelationMessageProperty property;
if (CorrelationMessageProperty.TryGet(context.OperationContext.IncomingMessageProperties, out property))
{
bookmarkScope = new BookmarkScope(property.CorrelationKey.Value);
}
else
{
bookmarkScope = null;
}
WorkflowHostingResponseContext responseContext = new WorkflowHostingResponseContext(context);
Bookmark bookmark = this.hostingEndpoint.OnResolveBookmark(context.Inputs, context.OperationContext, responseContext, out value);
if (bookmark == null)
{
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(WorkflowHostingEndpoint.CreateDispatchFaultException());
}
return(bookmark);
}
internal BookmarkScope EnsureBookmarkScope(NativeActivityContext executionContext)
{
if (this.Scope == null)
{
this.Scope = executionContext.DefaultBookmarkScope;
}
return this.Scope;
}
BookmarkResumptionResult ResumeProtocolBookmarkCore(Bookmark bookmark, object value, BookmarkScope bookmarkScope, bool bufferedReceiveEnabled, ref AsyncWaitHandle waitHandle, ref bool ownsLock)
{
Fx.Assert(this.state == State.Active, "WorkflowServiceInstance.State should be State.Active at this point.");
BookmarkResumptionResult result;
if (bookmarkScope == null)
{
result = this.Controller.ScheduleBookmarkResumption(bookmark, value);
}
else
{
result = this.Controller.ScheduleBookmarkResumption(bookmark, value, bookmarkScope);
}
if (result == BookmarkResumptionResult.NotReady && !bufferedReceiveEnabled)
{
if (waitHandle == null)
{
waitHandle = new AsyncWaitHandle();
}
else
{
waitHandle.Reset();
}
// Creation doesn't require the lock since it is guarded
// by the executor lock.
if (this.nextIdleWaiters == null)
{
this.nextIdleWaiters = new List<AsyncWaitHandle>();
}
lock (this.activeOperationsLock)
{
this.nextIdleWaiters.Add(waitHandle);
}
// We release the lock here so that the workflow will continue to process
// until the NextIdle waiters get notified
ReleaseLock(ref ownsLock);
}
return result;
}
protected internal virtual Bookmark OnResolveBookmark(WorkflowOperationContext context, out BookmarkScope bookmarkScope, out object value)
{
Fx.Assert(this.bookmark != null, "bookmark must not be null!");
CorrelationMessageProperty correlationMessageProperty;
if (CorrelationMessageProperty.TryGet(context.OperationContext.IncomingMessageProperties, out correlationMessageProperty))
{
bookmarkScope = new BookmarkScope(correlationMessageProperty.CorrelationKey.Value);
}
else
{
bookmarkScope = BookmarkScope.Default;
}
value = context;
return(this.bookmark);
}
public ResumeProtocolBookmarkAsyncResult(WorkflowServiceInstance instance, Bookmark bookmark, object value, BookmarkScope bookmarkScope, bool isResumeProtocolBookmark, TimeSpan timeout, AsyncCallback callback, object state)
: base(callback, state)
{
this.instance = instance;
this.bookmark = bookmark;
this.value = value;
this.bookmarkScope = bookmarkScope;
this.timeoutHelper = new TimeoutHelper(timeout);
// we are using default hard coded timeout of 1 minutes
this.nextIdleTimeoutHelper = new TimeoutHelper(instance.serviceHost.FilterResumeTimeout);
this.isResumeProtocolBookmark = isResumeProtocolBookmark;
this.OnCompleting = onCompleting;
Exception completionException = null;
bool completeSelf = true;
try
{
if (this.isResumeProtocolBookmark)
{
completeSelf = DoResumeBookmark();
}
else
{
completeSelf = WaitForInstanceToBeReady();
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
completionException = e;
}
if (completeSelf)
{
this.Complete(true, completionException);
}
}
public Bookmark CreateBookmark(string name, BookmarkScope scope, BookmarkCallback callback, ActivityInstance owningInstance, BookmarkOptions options)
{
Fx.Assert(scope != null, "We should never have a null scope.");
BookmarkManager manager = null;
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = this.defaultScope;
}
if (!this.bookmarkManagers.TryGetValue(lookupScope, out manager))
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.RegisteredBookmarkScopeRequired));
}
return manager.CreateBookmark(name, callback, owningInstance, options);
}
public IAsyncResult BeginResumeProtocolBookmark(Bookmark bookmark, BookmarkScope bookmarkScope, object value, TimeSpan timeout, AsyncCallback callback, object state)
{
object bookmarkValue = value;
WorkflowOperationContext item = value as WorkflowOperationContext;
if (item != null)
{
if (!item.HasResponse)
{
lock (this.thisLock)
{
this.pendingRequests.Add(item);
}
}
bookmarkValue = item.BookmarkValue;
}
return new ResumeProtocolBookmarkAsyncResult(this, bookmark, bookmarkValue, bookmarkScope, true, timeout, callback, state);
}
internal void InitializeBookmarkScope(NativeActivityContext context, InstanceKey instanceKey)
{
Fx.Assert(context != null, "executionContext cannot be null");
Fx.Assert(instanceKey != null, "instanceKey cannot be null");
if (context.GetExtension<SendReceiveExtension>() != null)
{
if (this.InstanceKey != null && this.InstanceKey.Value != instanceKey.Value)
{
throw FxTrace.Exception.AsError(
new InvalidOperationException(SR.CorrelationHandleInUse(this.InstanceKey.Value, instanceKey.Value)));
}
this.InstanceKey = instanceKey;
}
else
{
if (this.Scope == null)
{
this.bookmarkScopeHandle.CreateBookmarkScope(context, instanceKey.Value);
this.Scope = this.bookmarkScopeHandle.BookmarkScope;
}
else
{
if (this.Scope.IsInitialized)
{
if (this.Scope.Id != instanceKey.Value)
{
throw FxTrace.Exception.AsError(
new InvalidOperationException(SR.CorrelationHandleInUse(this.Scope.Id, instanceKey.Value)));
}
}
else
{
this.Scope.Initialize(context, instanceKey.Value);
}
}
}
}
public bool RemoveBookmark(Bookmark bookmark, BookmarkScope scope, ActivityInstance instanceAttemptingRemove)
{
Fx.Assert(scope != null, "We should never have a null scope.");
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = this.defaultScope;
}
BookmarkManager manager;
if (this.bookmarkManagers.TryGetValue(lookupScope, out manager))
{
return manager.Remove(bookmark, instanceAttemptingRemove);
}
else
{
return false;
}
}
public IAsyncResult BeginResumeProtocolBookmark(Bookmark bookmark, BookmarkScope bookmarkScope, object value, TimeSpan timeout, AsyncCallback callback, object state)
{
Fx.Assert(bookmark != null, "bookmark must not be null!");
object bookmarkValue = value;
WorkflowOperationContext context = value as WorkflowOperationContext;
if (context != null)
{
if (!context.HasResponse)
{
lock (this.thisLock)
{
this.pendingRequests.Add(context);
}
}
bookmarkValue = context.BookmarkValue;
}
return new ResumeProtocolBookmarkAsyncResult(this, bookmark, bookmarkValue, bookmarkScope, true, timeout, callback, state);
}
public BookmarkResumptionResult TryGenerateWorkItem(ActivityExecutor executor, ref Bookmark bookmark, BookmarkScope scope, object value, ActivityInstance isolationInstance, bool nonScopedBookmarksExist, out ActivityExecutionWorkItem workItem)
{
Fx.Assert(scope != null, "We should never have a null sub instance.");
BookmarkManager manager = null;
workItem = null;
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = this.defaultScope;
}
// We don't really care about the return value since we'll
// use null to know we should check uninitialized sub instances
this.bookmarkManagers.TryGetValue(lookupScope, out manager);
if (manager == null)
{
Fx.Assert(lookupScope != null, "The sub instance should not be default if we are here.");
BookmarkResumptionResult finalResult = BookmarkResumptionResult.NotFound;
// Check the uninitialized sub instances for a matching bookmark
if (this.uninitializedScopes != null)
{
for (int i = 0; i < this.uninitializedScopes.Count; i++)
{
BookmarkScope uninitializedScope = this.uninitializedScopes[i];
Fx.Assert(this.bookmarkManagers.ContainsKey(uninitializedScope), "We must always have the uninitialized sub instances.");
Bookmark internalBookmark;
BookmarkCallbackWrapper callbackWrapper;
BookmarkResumptionResult resumptionResult;
if (!this.bookmarkManagers[uninitializedScope].TryGetBookmarkFromInternalList(bookmark, out internalBookmark, out callbackWrapper))
{
resumptionResult = BookmarkResumptionResult.NotFound;
}
else if (IsExclusiveScopeUnstable(internalBookmark))
{
resumptionResult = BookmarkResumptionResult.NotReady;
}
else
{
resumptionResult = this.bookmarkManagers[uninitializedScope].TryGenerateWorkItem(executor, true, ref bookmark, value, isolationInstance, out workItem);
}
if (resumptionResult == BookmarkResumptionResult.Success)
{
// We are using InitializeBookmarkScopeWithoutKeyAssociation because we know this is a new uninitialized scope and
// the key we would associate is already associated. And if we did the association here, the subsequent call to
// FlushBookmarkScopeKeys would try to flush it out, but it won't have the transaction correct so will hang waiting for
// the transaction that has the PersistenceContext locked to complete. But it won't complete successfully until
// we finish processing here.
InitializeBookmarkScopeWithoutKeyAssociation(uninitializedScope, scope.Id);
// We've found what we were looking for
return BookmarkResumptionResult.Success;
}
else if (resumptionResult == BookmarkResumptionResult.NotReady)
{
// This uninitialized sub-instance has a matching bookmark but
// it can't currently be resumed. We won't return BookmarkNotFound
// because of this.
finalResult = BookmarkResumptionResult.NotReady;
}
else
{
if (finalResult == BookmarkResumptionResult.NotFound)
{
// If we still are planning on returning failure then
// we'll incur the cost of seeing if this scope is
// stable or not.
if (!IsStable(uninitializedScope, nonScopedBookmarksExist))
{
// There exists an uninitialized scope which is unstable.
// At the very least this means we'll return NotReady since
// this uninitialized scope might eventually contain this
// bookmark.
finalResult = BookmarkResumptionResult.NotReady;
}
}
}
}
}
return finalResult;
}
else
{
Bookmark bookmarkFromList;
BookmarkCallbackWrapper callbackWrapper;
BookmarkResumptionResult resumptionResult;
if (!manager.TryGetBookmarkFromInternalList(bookmark, out bookmarkFromList, out callbackWrapper))
{
resumptionResult = BookmarkResumptionResult.NotFound;
}
else
{
if (IsExclusiveScopeUnstable(bookmarkFromList))
{
resumptionResult = BookmarkResumptionResult.NotReady;
}
else
{
resumptionResult = manager.TryGenerateWorkItem(executor, true, ref bookmark, value, isolationInstance, out workItem);
}
}
if (resumptionResult == BookmarkResumptionResult.NotFound)
{
if (!IsStable(lookupScope, nonScopedBookmarksExist))
{
resumptionResult = BookmarkResumptionResult.NotReady;
}
}
return resumptionResult;
}
}
protected internal override Bookmark OnResolveBookmark(WorkflowOperationContext context, out BookmarkScope bookmarkScope, out object value)
{
CorrelationMessageProperty correlationMessageProperty;
if (CorrelationMessageProperty.TryGet(context.OperationContext.IncomingMessageProperties, out correlationMessageProperty))
{
bookmarkScope = new BookmarkScope(correlationMessageProperty.CorrelationKey.Value);
}
else
{
bookmarkScope = null;
}
WorkflowHostingResponseContext responseContext = new WorkflowHostingResponseContext(context);
Fx.Assert(context.ServiceEndpoint is WorkflowHostingEndpoint, "serviceEnpoint must be of WorkflowHostingEndpoint type!");
Bookmark bookmark = ((WorkflowHostingEndpoint)context.ServiceEndpoint).OnResolveBookmark(context.Inputs, context.OperationContext, responseContext, out value);
if (bookmark == null)
{
throw FxTrace.Exception.AsError(CreateDispatchFaultException());
}
return bookmark;
}
public BookmarkScopeManager()
{
this.nextTemporaryId = 1;
this.defaultScope = CreateAndRegisterScope(Guid.Empty);
}
BookmarkResumptionResult ScheduleBookmarkResumption(Bookmark bookmark, object value, BookmarkScope scope)
{
// validate we're in an ok state
ValidateScheduleResumeBookmark();
TrackResumed();
return(this.executor.TryResumeBookmark(bookmark, value, scope));
}
public ReadOnlyCollection<BookmarkInfo> GetBookmarks(BookmarkScope scope)
{
Fx.Assert(scope != null, "We should never be passed null here.");
BookmarkManager manager = null;
BookmarkScope lookupScope = scope;
if (scope.IsDefault)
{
lookupScope = this.defaultScope;
}
if (this.bookmarkManagers.TryGetValue(lookupScope, out manager))
{
if (!manager.HasBookmarks)
{
manager = null;
}
}
if (manager != null)
{
List<BookmarkInfo> bookmarks = new List<BookmarkInfo>();
manager.PopulateBookmarkInfo(bookmarks);
return new ReadOnlyCollection<BookmarkInfo>(bookmarks);
}
else
{
return null;
}
}
