public static Type GetContractType(OperationInfo operationInfo, ReceiveActivity contextActivity)
{
if (operationInfo == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("operationInfo");
}
if (contextActivity == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("contextActivity");
}
if (string.IsNullOrEmpty(operationInfo.ContractName))
{
return null;
}
Activity rootActivity = contextActivity.RootActivity;
Dictionary<string, ContractType> contractTypes =
rootActivity.GetValue(DynamicContractTypeBuilder.DynamicContractTypesProperty) as Dictionary<string, ContractType>;
if (contractTypes == null)
{
Activity definition = rootActivity.GetValue(Activity.WorkflowDefinitionProperty) as Activity;
if (definition != null)
{
contractTypes = definition.GetValue(DynamicContractTypeBuilder.DynamicContractTypesProperty) as Dictionary<string, ContractType>;
}
if (contractTypes != null)
{
rootActivity.SetValue(DynamicContractTypeBuilder.DynamicContractTypesProperty, contractTypes);
}
}
if (contractTypes == null)
{
contractTypes = BuildContractTypes(rootActivity);
rootActivity.SetValue(DynamicContractTypeBuilder.DynamicContractTypesProperty, contractTypes);
}
if (contractTypes.ContainsKey(operationInfo.ContractName))
{
return contractTypes[operationInfo.ContractName];
}
return null;
}
internal ContractMethodInfo(ContractType declaringType, OperationInfo operationInfo)
{
if (declaringType == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("declaringType");
}
if (operationInfo == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("operationInfo");
}
if (string.IsNullOrEmpty(operationInfo.Name))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("operationInfo",
SR2.GetString(SR2.Error_OperationNameNotSpecified));
}
this.declaringType = declaringType;
this.name = operationInfo.Name;
this.methodAttributes = MethodAttributes.Public |
MethodAttributes.Abstract |
MethodAttributes.Virtual;
SortedList<int, ContractMethodParameterInfo> localParameters =
new SortedList<int, ContractMethodParameterInfo>();
foreach (OperationParameterInfo operationParameterInfo in operationInfo.Parameters)
{
ContractMethodParameterInfo parameterInfo =
new ContractMethodParameterInfo(this, operationParameterInfo);
if (parameterInfo.Position == -1)
{
this.returnParam = parameterInfo;
}
else
{
localParameters.Add(parameterInfo.Position, parameterInfo);
}
}
this.parameters = new ParameterInfo[localParameters.Count];
foreach (ContractMethodParameterInfo paramInfo in localParameters.Values)
{
this.parameters[paramInfo.Position] = paramInfo;
}
if (this.returnParam == null)
{
OperationParameterInfo returnParameterInfo = new OperationParameterInfo();
returnParameterInfo.Position = -1;
returnParameterInfo.ParameterType = typeof(void);
this.returnParam = new ContractMethodParameterInfo(this, returnParameterInfo);
}
OperationContractAttribute operationContract = new OperationContractAttribute();
if (operationInfo.HasProtectionLevel && operationInfo.ProtectionLevel != null)
{
operationContract.ProtectionLevel = (ProtectionLevel) operationInfo.ProtectionLevel;
}
operationContract.IsOneWay = operationInfo.IsOneWay;
this.attributes = new Attribute[] { operationContract };
declaringType.AddMethod(this);
}
static Dictionary <string, ContractType> BuildContractTypes(Activity contextActivity)
{
if (contextActivity == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("contextActivity");
}
Dictionary <string, ContractType> types = new Dictionary <string, ContractType>();
Walker walker = new Walker(true);
walker.FoundActivity += delegate(Walker w, WalkerEventArgs args)
{
ReceiveActivity currentActivity = args.CurrentActivity as ReceiveActivity;
if (currentActivity == null)
{
return;
}
OperationInfo operationInfo = currentActivity.ServiceOperationInfo as OperationInfo;
if (operationInfo == null)
{
return;
}
if (string.IsNullOrEmpty(operationInfo.ContractName) ||
string.IsNullOrEmpty(operationInfo.Name))
{
return;
}
if (!types.ContainsKey(operationInfo.ContractName))
{
types.Add(operationInfo.ContractName,
new ContractType(operationInfo.ContractName));
}
bool hasReturnValue = false;
bool duplicatedPositions = false;
int maxPosition = -1;
List <int> parameterIndexs = new List <int>();
foreach (OperationParameterInfo operationParameterInfo in operationInfo.Parameters)
{
if (operationParameterInfo.Position == -1)
{
hasReturnValue = true;
}
else
{
maxPosition = (maxPosition < operationParameterInfo.Position) ? operationParameterInfo.Position : maxPosition;
}
if (parameterIndexs.Contains(operationParameterInfo.Position))
{
duplicatedPositions = true;
break;
}
else
{
parameterIndexs.Add(operationParameterInfo.Position);
}
}
if (duplicatedPositions ||
maxPosition > (operationInfo.Parameters.Count - (hasReturnValue ? 2 : 1)))
{
return;
}
ContractType contract = types[operationInfo.ContractName];
ContractMethodInfo methodInfo = new ContractMethodInfo(contract, operationInfo);
};
walker.Walk(contextActivity);
return(types);
}
internal ContractMethodInfo(ContractType declaringType, OperationInfo operationInfo)
{
if (declaringType == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("declaringType");
}
if (operationInfo == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("operationInfo");
}
if (string.IsNullOrEmpty(operationInfo.Name))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("operationInfo",
SR2.GetString(SR2.Error_OperationNameNotSpecified));
}
this.declaringType = declaringType;
this.name = operationInfo.Name;
this.methodAttributes = MethodAttributes.Public |
MethodAttributes.Abstract |
MethodAttributes.Virtual;
SortedList <int, ContractMethodParameterInfo> localParameters =
new SortedList <int, ContractMethodParameterInfo>();
foreach (OperationParameterInfo operationParameterInfo in operationInfo.Parameters)
{
ContractMethodParameterInfo parameterInfo =
new ContractMethodParameterInfo(this, operationParameterInfo);
if (parameterInfo.Position == -1)
{
this.returnParam = parameterInfo;
}
else
{
localParameters.Add(parameterInfo.Position, parameterInfo);
}
}
this.parameters = new ParameterInfo[localParameters.Count];
foreach (ContractMethodParameterInfo paramInfo in localParameters.Values)
{
this.parameters[paramInfo.Position] = paramInfo;
}
if (this.returnParam == null)
{
OperationParameterInfo returnParameterInfo = new OperationParameterInfo();
returnParameterInfo.Position = -1;
returnParameterInfo.ParameterType = typeof(void);
this.returnParam = new ContractMethodParameterInfo(this, returnParameterInfo);
}
OperationContractAttribute operationContract = new OperationContractAttribute();
if (operationInfo.HasProtectionLevel && operationInfo.ProtectionLevel != null)
{
operationContract.ProtectionLevel = (ProtectionLevel)operationInfo.ProtectionLevel;
}
operationContract.IsOneWay = operationInfo.IsOneWay;
this.attributes = new Attribute[] { operationContract };
declaringType.AddMethod(this);
}
