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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Description
{
using System.Collections.ObjectModel;
using System.IO;
using System.Runtime;
using System.ServiceModel.Administration;
using System.ServiceModel.Channels;
using System.ServiceModel.Dispatcher;
using System.Workflow.ComponentModel;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
using System.Xml;
class WorkflowServiceBehavior : IServiceBehavior, IContextSessionProvider, IWmiInstanceProvider
{
static readonly object[] emptyObjectArray = new object[] { };
AddressFilterMode addressFilterMode;
string configurationName;
bool ignoreExtensionDataObject;
bool includeExceptionDetailInFaults;
int maxItemsInObjectGraph = -1;
string name;
string nameSpace;
bool useSynchronizationContext;
bool validateMustUnderstand;
WorkflowDefinitionContext workflowDefinitionContext;
string workflowDefinitionPath;
string workflowRulesPath;
public WorkflowServiceBehavior(Type workflowType) :
this(new CompiledWorkflowDefinitionContext(workflowType))
{
}
public WorkflowServiceBehavior(string workflowDefinitionPath)
:
this(workflowDefinitionPath, null)
{
}
public WorkflowServiceBehavior(string workflowDefinitionPath, string ruleDefinitionPath)
:
this(new StreamedWorkflowDefinitionContext(workflowDefinitionPath, ruleDefinitionPath, null))
{
this.workflowDefinitionPath = workflowDefinitionPath;
this.workflowRulesPath = ruleDefinitionPath;
}
public WorkflowServiceBehavior(Stream workflowDefinitionStream)
: this(new StreamedWorkflowDefinitionContext(workflowDefinitionStream, null, null))
{
}
public WorkflowServiceBehavior(Stream workflowDefinitionStream, Stream ruleDefinitionStream)
: this(new StreamedWorkflowDefinitionContext(workflowDefinitionStream, ruleDefinitionStream, null))
{
}
internal WorkflowServiceBehavior(WorkflowDefinitionContext workflowDefinitionContext)
{
if (workflowDefinitionContext == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("workflowDefinitionContext");
}
this.workflowDefinitionContext = workflowDefinitionContext;
this.name = this.workflowDefinitionContext.WorkflowName;
this.configurationName = this.workflowDefinitionContext.ConfigurationName;
}
public AddressFilterMode AddressFilterMode
{
get
{
return this.addressFilterMode;
}
set
{
if (!AddressFilterModeHelper.IsDefined(value))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value"));
}
this.addressFilterMode = value;
}
}
public string ConfigurationName
{
get
{
return this.configurationName;
}
set
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
this.configurationName = value;
}
}
public bool IgnoreExtensionDataObject
{
get
{
return this.ignoreExtensionDataObject;
}
set
{
this.ignoreExtensionDataObject = value;
}
}
public bool IncludeExceptionDetailInFaults
{
get
{
return this.includeExceptionDetailInFaults;
}
set
{
this.includeExceptionDetailInFaults = value;
}
}
public int MaxItemsInObjectGraph
{
get
{
return this.maxItemsInObjectGraph;
}
set
{
this.maxItemsInObjectGraph = value;
}
}
public string Name
{
get
{
return this.name;
}
set
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
this.name = value;
}
}
public string Namespace
{
get
{
return this.nameSpace;
}
set
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
this.nameSpace = value;
}
}
public bool UseSynchronizationContext
{
get
{
return this.useSynchronizationContext;
}
set
{
this.useSynchronizationContext = value;
}
}
public bool ValidateMustUnderstand
{
get
{
return this.validateMustUnderstand;
}
set
{
this.validateMustUnderstand = value;
}
}
public void AddBindingParameters(ServiceDescription description, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, BindingParameterCollection parameters)
{
}
public void ApplyDispatchBehavior(ServiceDescription description, ServiceHostBase serviceHostBase)
{
if (description == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("description");
}
if (serviceHostBase == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceHostBase");
}
if (description.Behaviors == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("description", SR2.GetString(SR2.NoBehaviors));
}
if (description.Endpoints == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("description", SR2.GetString(SR2.NoEndpoints));
}
bool syncContextRegistered = false;
WorkflowRuntimeBehavior workflowRuntimeBehavior = description.Behaviors.Find<WorkflowRuntimeBehavior>();
if (workflowRuntimeBehavior == null)
{
workflowRuntimeBehavior = new WorkflowRuntimeBehavior();
description.Behaviors.Add(workflowRuntimeBehavior);
}
WorkflowPersistenceService persistenceService = workflowRuntimeBehavior.WorkflowRuntime.GetService<WorkflowPersistenceService>();
if (persistenceService != null)
{
bool wasRuntimeStarted = workflowRuntimeBehavior.WorkflowRuntime.IsStarted;
if (wasRuntimeStarted)
{
workflowRuntimeBehavior.WorkflowRuntime.StopRuntime();
}
workflowRuntimeBehavior.WorkflowRuntime.RemoveService(persistenceService);
workflowRuntimeBehavior.WorkflowRuntime.AddService(new SkipUnloadOnFirstIdleWorkflowPersistenceService(persistenceService));
if (wasRuntimeStarted)
{
workflowRuntimeBehavior.WorkflowRuntime.StartRuntime();
}
}
this.workflowDefinitionContext.Register(workflowRuntimeBehavior.WorkflowRuntime, workflowRuntimeBehavior.ValidateOnCreate);
WorkflowInstanceContextProvider instanceContextProvider = new WorkflowInstanceContextProvider(
serviceHostBase,
false,
this.workflowDefinitionContext
);
WorkflowInstanceContextProvider singleCallInstanceContextProvider = null;
IInstanceProvider instanceProvider = new WorkflowInstanceProvider(instanceContextProvider);
ServiceDebugBehavior serviceDebugBehavior = description.Behaviors.Find<ServiceDebugBehavior>();
bool includeExceptionDetailsInFaults = this.IncludeExceptionDetailInFaults;
if (serviceDebugBehavior != null)
{
includeExceptionDetailsInFaults |= serviceDebugBehavior.IncludeExceptionDetailInFaults;
}
IErrorHandler workflowOperationErrorHandler = new WorkflowOperationErrorHandler(includeExceptionDetailsInFaults);
foreach (ChannelDispatcherBase channelDispatcherBase in serviceHostBase.ChannelDispatchers)
{
ChannelDispatcher channelDispatcher = channelDispatcherBase as ChannelDispatcher;
if (channelDispatcher != null && channelDispatcher.HasApplicationEndpoints())
{
channelDispatcher.IncludeExceptionDetailInFaults = includeExceptionDetailsInFaults;
channelDispatcher.ErrorHandlers.Add(workflowOperationErrorHandler);
foreach (EndpointDispatcher endPointDispatcher in channelDispatcher.Endpoints)
{
if (endPointDispatcher.IsSystemEndpoint)
{
continue;
}
ServiceEndpoint serviceEndPoint = description.Endpoints.Find(new XmlQualifiedName(endPointDispatcher.ContractName, endPointDispatcher.ContractNamespace));
if (serviceEndPoint != null)
{
DispatchRuntime dispatchRuntime = endPointDispatcher.DispatchRuntime;
dispatchRuntime.AutomaticInputSessionShutdown = true;
dispatchRuntime.ConcurrencyMode = ConcurrencyMode.Single;
dispatchRuntime.ValidateMustUnderstand = this.ValidateMustUnderstand;
if (!this.UseSynchronizationContext)
{
dispatchRuntime.SynchronizationContext = null;
}
else if (!syncContextRegistered)
{
SynchronizationContextWorkflowSchedulerService syncSchedulerService = workflowRuntimeBehavior.WorkflowRuntime.GetService<SynchronizationContextWorkflowSchedulerService>();
Fx.Assert(syncSchedulerService != null, "Wrong Synchronization Context Set");
syncSchedulerService.SetSynchronizationContext(dispatchRuntime.SynchronizationContext);
syncContextRegistered = true;
}
if (!endPointDispatcher.AddressFilterSetExplicit)
{
EndpointAddress endPointAddress = endPointDispatcher.OriginalAddress;
if ((endPointAddress == null) || (this.AddressFilterMode == AddressFilterMode.Any))
{
endPointDispatcher.AddressFilter = new MatchAllMessageFilter();
}
else if (this.AddressFilterMode == AddressFilterMode.Prefix)
{
endPointDispatcher.AddressFilter = new PrefixEndpointAddressMessageFilter(endPointAddress);
}
else if (this.AddressFilterMode == AddressFilterMode.Exact)
{
endPointDispatcher.AddressFilter = new EndpointAddressMessageFilter(endPointAddress);
}
}
if (serviceEndPoint.Contract.SessionMode != SessionMode.NotAllowed)
{
endPointDispatcher.DispatchRuntime.InstanceContextProvider = instanceContextProvider;
}
else
{
if (singleCallInstanceContextProvider == null)
{
singleCallInstanceContextProvider = new WorkflowInstanceContextProvider(
serviceHostBase,
true,
this.workflowDefinitionContext);
}
endPointDispatcher.DispatchRuntime.InstanceContextProvider = singleCallInstanceContextProvider;
}
endPointDispatcher.DispatchRuntime.MessageInspectors.Add(new DurableMessageDispatchInspector(serviceEndPoint.Contract.SessionMode));
endPointDispatcher.DispatchRuntime.InstanceProvider = instanceProvider;
SetContractFilterToIncludeAllOperations(endPointDispatcher, serviceEndPoint.Contract);
}
}
}
}
DataContractSerializerServiceBehavior.ApplySerializationSettings(description, this.ignoreExtensionDataObject, this.maxItemsInObjectGraph);
}
void IWmiInstanceProvider.FillInstance(IWmiInstance wmiInstance)
{
wmiInstance.SetProperty("AddressFilterMode", this.AddressFilterMode.ToString());
wmiInstance.SetProperty("ConfigurationName", this.ConfigurationName);
wmiInstance.SetProperty("IgnoreExtensionDataObject", this.IgnoreExtensionDataObject);
wmiInstance.SetProperty("IncludeExceptionDetailInFaults", this.IncludeExceptionDetailInFaults);
wmiInstance.SetProperty("MaxItemsInObjectGraph", this.MaxItemsInObjectGraph);
wmiInstance.SetProperty("Name", this.Name);
wmiInstance.SetProperty("Namespace", this.Namespace);
wmiInstance.SetProperty("UseSynchronizationContext", this.UseSynchronizationContext);
wmiInstance.SetProperty("ValidateMustUnderstand", this.ValidateMustUnderstand);
wmiInstance.SetProperty("WorkflowType", this.workflowDefinitionContext.WorkflowName);
wmiInstance.SetProperty("WorkflowDefinitionPath", this.workflowDefinitionPath);
wmiInstance.SetProperty("WorkflowRulesPath", this.workflowRulesPath);
}
string IWmiInstanceProvider.GetInstanceType()
{
return "WorkflowServiceBehavior";
}
public void Validate(ServiceDescription description, ServiceHostBase serviceHostBase)
{
ContextBindingElement.ValidateContextBindingElementOnAllEndpointsWithSessionfulContract(description, this);
}
internal static void SetContractFilterToIncludeAllOperations(EndpointDispatcher dispatcher, ContractDescription contract)
{
if (dispatcher == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("dispatcher");
}
if (contract == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("contract");
}
if (contract.SessionMode == SessionMode.Required)
{
EndpointFilterProvider provider = new EndpointFilterProvider();
foreach (OperationDescription operation in contract.Operations)
{
if (!operation.IsServerInitiated())
{
provider.InitiatingActions.Add(operation.Messages[0].Action);
}
}
int priority;
dispatcher.ContractFilter = provider.CreateFilter(out priority);
dispatcher.FilterPriority = priority;
}
}
class SkipUnloadOnFirstIdleWorkflowPersistenceService : WorkflowPersistenceService
{
WorkflowPersistenceService inner;
public SkipUnloadOnFirstIdleWorkflowPersistenceService(WorkflowPersistenceService inner)
{
if (inner == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("inner");
}
this.inner = inner;
}
protected internal override Activity LoadCompletedContextActivity(Guid scopeId, Activity outerActivity)
{
return this.inner.LoadCompletedContextActivity(scopeId, outerActivity);
}
protected internal override Activity LoadWorkflowInstanceState(Guid instanceId)
{
return this.inner.LoadWorkflowInstanceState(instanceId);
}
protected internal override void SaveCompletedContextActivity(Activity activity)
{
this.inner.SaveCompletedContextActivity(activity);
}
protected internal override void SaveWorkflowInstanceState(Activity rootActivity, bool unlock)
{
this.inner.SaveWorkflowInstanceState(rootActivity, unlock);
}
protected internal override void Start()
{
this.inner.SetRuntime(this.Runtime);
this.inner.Start();
}
protected internal override void Stop()
{
this.inner.Stop();
this.inner.SetRuntime(null);
}
protected internal override bool UnloadOnIdle(Activity activity)
{
if (WorkflowDispatchContext.Current != null && WorkflowDispatchContext.Current.IsWorkflowStarting)
{
return false;
}
else
{
return this.inner.UnloadOnIdle(activity);
}
}
protected internal override void UnlockWorkflowInstanceState(Activity rootActivity)
{
this.inner.UnlockWorkflowInstanceState(rootActivity);
}
}
}
}
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