1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
using System;
using System.Diagnostics;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Workflow.ComponentModel;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
using System.Security.Principal;
using System.Runtime.Serialization;
namespace System.Workflow.Activities
{
[Serializable]
[Obsolete("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")]
public sealed class EventDeliveryFailedException : SystemException
{
public EventDeliveryFailedException()
{
}
public EventDeliveryFailedException(String message)
: base(message)
{
}
public EventDeliveryFailedException(String message, Exception innerException)
: base(message, innerException)
{
}
private EventDeliveryFailedException(SerializationInfo info, StreamingContext context)
: base(info, context)
{
}
}
[Serializable]
internal sealed class WorkflowMessageEventHandler
{
Type proxiedType;
string eventName;
[NonSerialized]
Type eventHandlerType;
[NonSerialized]
IDeliverMessage enqueueWrapper;
internal WorkflowMessageEventHandler(Type proxiedType, EventInfo eventInfo, IDeliverMessage enqueueWrapper)
{
this.proxiedType = proxiedType;
this.eventName = eventInfo.Name;
this.eventHandlerType = eventInfo.EventHandlerType;
this.enqueueWrapper = enqueueWrapper;
}
internal IDeliverMessage EnqueueWrapper
{
get
{
return this.enqueueWrapper;
}
set
{
if (value == null)
{
throw new ArgumentNullException("value");
}
this.enqueueWrapper = value;
}
}
internal Delegate Delegate
{
get
{
MethodInfo interceptedHandler = this.eventHandlerType.GetMethod("Invoke");
ParameterInfo[] parameters = interceptedHandler.GetParameters();
bool isValidParameter = false;
if (parameters.Length == 2)
{
if (parameters[1].ParameterType.IsSubclassOf(typeof(ExternalDataEventArgs))
|| parameters[1].ParameterType == (typeof(ExternalDataEventArgs)))
isValidParameter = true;
}
if (isValidParameter)
{
MethodInfo mHandler = typeof(WorkflowMessageEventHandler).GetMethod("EventHandler");
return (Delegate)Activator.CreateInstance(eventHandlerType, new object[] { this, mHandler.MethodHandle.GetFunctionPointer() });
}
return null;
}
}
public void EventHandler(object sender, ExternalDataEventArgs eventArgs)
{
if (eventArgs == null)
{
throw new ArgumentNullException("eventArgs");
}
try
{
object workItem;
IPendingWork workHandler;
object[] args = this.enqueueWrapper.PrepareEventArgsArray(sender, eventArgs, out workItem, out workHandler);
EventQueueName key = GetKey(args);
String securityIdentifier = null;
if (eventArgs.Identity == null)
{
IIdentity identity = System.Threading.Thread.CurrentPrincipal.Identity;
WindowsIdentity windowsIdentity = identity as WindowsIdentity;
if (windowsIdentity != null && windowsIdentity.User != null)
securityIdentifier = windowsIdentity.User.Translate(typeof(NTAccount)).ToString();
else if (identity != null)
securityIdentifier = identity.Name;
eventArgs.Identity = securityIdentifier;
}
else
{
securityIdentifier = eventArgs.Identity;
}
MethodMessage message = new MethodMessage(this.proxiedType, this.eventName, args, securityIdentifier);
WorkflowActivityTrace.Activity.TraceEvent(TraceEventType.Information, 0, "Firing event {0} for instance {1}", this.eventName, eventArgs.InstanceId);
this.enqueueWrapper.DeliverMessage(eventArgs, key, message, workItem, workHandler);
}
catch (Exception e)
{
if (ExternalDataExchangeService.IsIrrecoverableException(e))
{
throw;
}
else
{
throw new EventDeliveryFailedException(SR.GetString(SR.Error_EventDeliveryFailedException, this.proxiedType, this.eventName, eventArgs.InstanceId), e);
}
}
}
private EventQueueName GetKey(object[] eventArgs)
{
bool provideInitializerTokens = CorrelationResolver.IsInitializingMember(this.proxiedType, this.eventName, eventArgs);
ICollection<CorrelationProperty> predicates = CorrelationResolver.ResolveCorrelationValues(this.proxiedType, this.eventName, eventArgs, provideInitializerTokens);
return new EventQueueName(this.proxiedType, this.eventName, predicates);
}
}
}
|
