/// <summary>
/// Creates the wrapper from the given service operation.
/// </summary>
/// <param name="serviceOperation">Service operation instance whose wrapper needs to get created.</param>
/// <param name="resourceSetValidator">Resource set validator.</param>
/// <param name="resourceTypeValidator">Resource type validator.</param>
/// <returns>Wrapper for the given service operation.</returns>
internal static ServiceOperationWrapper CreateServiceOperationWrapper(
ServiceOperation serviceOperation,
Func <ResourceSet, ResourceSetWrapper> resourceSetValidator,
Func <ResourceType, ResourceType> resourceTypeValidator)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(serviceOperation != null, "serviceOperation != null");
Debug.Assert(serviceOperation.IsReadOnly, "The serviceOperation must be read-only by now.");
Debug.Assert(resourceSetValidator != null, "resourceSetValidator != null");
Debug.Assert(resourceTypeValidator != null, "resourceTypeValidator != null");
ServiceOperationWrapper serviceOperationWrapper = new ServiceOperationWrapper(serviceOperation);
#if DEBUG
serviceOperationWrapper.isReadOnly = true;
#endif
serviceOperationWrapper.resourceSet = resourceSetValidator(serviceOperation.ResourceSet);
ResourceType resultType = serviceOperation.ResultType;
if (resultType == null || resultType.ResourceTypeKind == ResourceTypeKind.Primitive)
{
// No need to validate primitive resource types
serviceOperationWrapper.resultType = resultType;
}
else
{
// Validate the resource type of the result
serviceOperationWrapper.resultType = resourceTypeValidator(resultType);
}
return(serviceOperationWrapper);
}
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
var method = (MethodInfo)serviceOperation.CustomState;
var currentDataContext = ((TypedDataSource)CurrentDataSource).DataContext;
return method.Invoke(currentDataContext, parameters);
}
/// <summary>
/// Throws if <paramref name="serviceOperation"/> is not sealed.
/// </summary>
/// <param name="serviceOperation">Service operation to inspect.</param>
private static void ValidateServiceOperationReadOnly(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "serviceOperation != null");
if (!serviceOperation.IsReadOnly)
{
throw new ODataException(Strings.DataServiceMetadataProviderWrapper_ServiceOperationNotReadonly(serviceOperation.Name));
}
}
/// <summary>
/// Invoke the given service operation instance.
/// </summary>
/// <param name="serviceOperation">metadata for the service operation to invoke.</param>
/// <param name="parameters">list of parameters to pass to the service operation.</param>
/// <returns>returns the result by the service operation instance.</returns>
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
return(((MethodInfo)serviceOperation.CustomState).Invoke(
this.dataServiceInstance,
BindingFlags.Instance | BindingFlags.Instance | BindingFlags.FlattenHierarchy,
null,
parameters,
Globalization.CultureInfo.InvariantCulture));
}
/// <summary>
/// Initializes a new <see cref="ServiceOperationWrapper"/> instance.
/// </summary>
/// <param name="serviceOperation">ServiceOperation instance to be wrapped.</param>
public ServiceOperationWrapper(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "serviceOperation != null");
if (!serviceOperation.IsReadOnly)
{
throw new DataServiceException(500, Strings.DataServiceProviderWrapper_ServiceOperationNotReadonly(serviceOperation.Name));
}
this.serviceOperation = serviceOperation;
}
/// <summary>
/// Initializes a new <see cref="ServiceOperationWrapper"/> instance.
/// </summary>
/// <param name="serviceOperation">ServiceOperation instance to be wrapped.</param>
public ServiceOperationWrapper(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "serviceOperation != null");
if (!serviceOperation.IsReadOnly)
{
throw new DataServiceException(500, Strings.DataServiceProviderWrapper_ServiceOperationNotReadonly(serviceOperation.Name));
}
this.serviceOperation = serviceOperation;
}
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
object obj2;
WebUtil.CheckArgumentNull <ServiceOperation>(serviceOperation, "serviceOperation");
try
{
obj2 = ((MethodInfo)serviceOperation.CustomState).Invoke(this.dataServiceInstance, BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Instance, null, parameters, CultureInfo.InvariantCulture);
}
catch (TargetInvocationException exception)
{
ErrorHandler.HandleTargetInvocationException(exception);
throw;
}
return(obj2);
}
/// <summary>
/// Validates if the service operation should be visible and is read only. If the service operation
/// rights are set to None the service operation should not be visible.
/// </summary>
/// <param name="serviceOperation">Service operation to be validated.</param>
/// <returns>Validated service operation, null if the service operation is not supposed to be visible.</returns>
internal ServiceOperationWrapper ValidateServiceOperation(ServiceOperation serviceOperation)
{
DebugUtils.CheckNoExternalCallers();
ServiceOperationWrapper serviceOperationWrapper = null;
if (serviceOperation != null)
{
// For IDSP, we want to make sure the metadata object instance stay the same within
// a request because we do reference comparisons. Note the provider can return
// different metadata instances within the same request. The the Validate*() methods
// will make sure to return the first cached instance.
if (!this.serviceOperationCache.TryGetValue(serviceOperation.Name, out serviceOperationWrapper))
{
ValidateServiceOperationReadOnly(serviceOperation);
serviceOperationWrapper = ServiceOperationWrapper.CreateServiceOperationWrapper(serviceOperation, this.ValidateResourceSet, this.ValidateResourceType);
this.serviceOperationCache[serviceOperation.Name] = serviceOperationWrapper;
}
}
return(serviceOperationWrapper);
}
/// <summary>Returns a service operation specified by its name.</summary>
/// <param name="name">The name of the service operation to find.</param>
/// <param name="serviceOperation">The service operation instance found.</param>
/// <returns>true if the service operation was found or false otherwise.</returns>
/// <remarks>The implementation of this method should be very fast as it will get called for many requests. It should also be fast
/// for non-existing service operations to avoid possible DoS attacks on the service.</remarks>
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
bool found;
readerWriterLock.EnterReadLock();
try
{
found = this.serviceOperations.TryGetValue(name, out serviceOperation);
}
finally
{
readerWriterLock.ExitReadLock();
}
return found;
}
/// <summary>Invokes the specified service operation.</summary>
/// <param name="serviceOperation">The service operation to invoke.</param>
/// <param name="parameters">The parameters for the service operation. Their types will match the types of the declared parameters for the service operation.</param>
/// <returns>The result of the service operation.
/// If the service operation is declared to return void, this method should return null.
/// Otherwise the method should return object of the type declared as the return type for the service operation.</returns>
public virtual object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
throw new NotSupportedException("Service operations are not yet supported.");
}
/// <summary>
/// Adds a new <see cref="ServiceOperation"/> based on the specified <paramref name="method"/>
/// instance.
/// </summary>
/// <param name="method">Method to expose as a service operation.</param>
/// <param name="protocolMethod">Protocol (for example HTTP) method the service operation responds to.</param>
private void AddServiceOperation(MethodInfo method, string protocolMethod)
{
Debug.Assert(method != null, "method != null");
Debug.Assert(!method.IsAbstract, "!method.IsAbstract - if method is abstract, the type is abstract - already checked");
// This method is only called for V1 providers, since in case of custom providers,
// they are suppose to load the metadata themselves.
if (this.metadata.ServiceOperations.ContainsKey(method.Name))
{
throw new InvalidOperationException(Strings.BaseServiceProvider_OverloadingNotSupported(this.Type, method));
}
bool hasSingleResult = SingleResultAttribute.MethodHasSingleResult(method);
ServiceOperationResultKind resultKind;
ResourceType resourceType = null;
if (method.ReturnType == typeof(void))
{
resultKind = ServiceOperationResultKind.Void;
this.UpdateEdmSchemaVersion(MetadataEdmSchemaVersion.Version1Dot1);
}
else
{
// Load the metadata of the resource type on the fly.
// For Edm provider, it might not mean anything, but for reflection service provider, we need to
// load the metadata of the type if its used only in service operation case
Type resultType = null;
if (WebUtil.IsPrimitiveType(method.ReturnType))
{
resultKind = ServiceOperationResultKind.DirectValue;
resultType = method.ReturnType;
resourceType = ResourceType.GetPrimitiveResourceType(resultType);
}
else
{
Type queryableElement = GetGenericInterfaceElementType(method.ReturnType, IQueryableTypeFilter);
if (queryableElement != null)
{
resultKind = hasSingleResult ?
ServiceOperationResultKind.QueryWithSingleResult :
ServiceOperationResultKind.QueryWithMultipleResults;
resultType = queryableElement;
}
else
{
Type enumerableElement = GetIEnumerableElement(method.ReturnType);
if (enumerableElement != null)
{
resultKind = ServiceOperationResultKind.Enumeration;
resultType = enumerableElement;
}
else
{
resultType = method.ReturnType;
resultKind = ServiceOperationResultKind.DirectValue;
this.UpdateEdmSchemaVersion(MetadataEdmSchemaVersion.Version1Dot1);
}
}
Debug.Assert(resultType != null, "resultType != null");
resourceType = ResourceType.GetPrimitiveResourceType(resultType);
if (resourceType == null)
{
resourceType = this.PopulateMetadataForType(resultType, this.TypeCache, this.ChildTypesCache, this.EntitySets.Values);
}
}
if (resourceType == null)
{
throw new InvalidOperationException(Strings.BaseServiceProvider_UnsupportedReturnType(method, method.ReturnType));
}
if (resultKind == ServiceOperationResultKind.Enumeration && hasSingleResult)
{
throw new InvalidOperationException(Strings.BaseServiceProvider_IEnumerableAlwaysMultiple(this.Type, method));
}
if (hasSingleResult ||
(!hasSingleResult &&
(resourceType.ResourceTypeKind == ResourceTypeKind.ComplexType ||
resourceType.ResourceTypeKind == ResourceTypeKind.Primitive)))
{
this.UpdateEdmSchemaVersion(MetadataEdmSchemaVersion.Version1Dot1);
}
}
ParameterInfo[] parametersInfo = method.GetParameters();
ServiceOperationParameter[] parameters = new ServiceOperationParameter[parametersInfo.Length];
for (int i = 0; i < parameters.Length; i++)
{
ParameterInfo parameterInfo = parametersInfo[i];
if (parameterInfo.IsOut || parameterInfo.IsRetval)
{
throw new InvalidOperationException(Strings.BaseServiceProvider_ParameterNotIn(method, parameterInfo));
}
ResourceType parameterType = ResourceType.GetPrimitiveResourceType(parameterInfo.ParameterType);
if (parameterType == null)
{
throw new InvalidOperationException(
Strings.BaseServiceProvider_ParameterTypeNotSupported(method, parameterInfo, parameterInfo.ParameterType));
}
string parameterName = parameterInfo.Name ?? "p" + i.ToString(CultureInfo.InvariantCulture);
parameters[i] = new ServiceOperationParameter(parameterName, parameterType);
}
ResourceSet container = null;
if (resourceType != null && resourceType.ResourceTypeKind == ResourceTypeKind.EntityType)
{
if (!this.TryFindAnyContainerForType(resourceType, out container))
{
throw new InvalidOperationException(
Strings.BaseServiceProvider_ServiceOperationMissingSingleEntitySet(method, resourceType.FullName));
}
}
ServiceOperation operation = new ServiceOperation(method.Name, resultKind, resourceType, container, protocolMethod, parameters);
operation.CustomState = method;
MimeTypeAttribute attribute = MimeTypeAttribute.GetMimeTypeAttribute(method);
if (attribute != null)
{
operation.MimeType = attribute.MimeType;
}
this.metadata.ServiceOperations.Add(method.Name, operation);
}
/// <summary>
/// Invoke the given service operation instance.
/// </summary>
/// <param name="serviceOperation">metadata for the service operation to invoke.</param>
/// <param name="parameters">list of parameters to pass to the service operation.</param>
/// <returns>returns the result by the service operation instance.</returns>
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
return ((MethodInfo)serviceOperation.CustomState).Invoke(
this.dataServiceInstance,
BindingFlags.Instance | BindingFlags.Instance | BindingFlags.FlattenHierarchy,
null,
parameters,
Globalization.CultureInfo.InvariantCulture);
}
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
WebUtil.CheckStringArgumentNullOrEmpty(name, "name");
return this.metadata.ServiceOperations.TryGetValue(name, out serviceOperation);
}
internal ServiceOperationRights GetServiceOperationRights(ServiceOperation serviceOperation)
{
ServiceOperationRights rightsForUnspecifiedServiceOperation;
if (!this.serviceOperationRights.TryGetValue(serviceOperation.Name, out rightsForUnspecifiedServiceOperation))
{
rightsForUnspecifiedServiceOperation = this.rightsForUnspecifiedServiceOperation;
}
return rightsForUnspecifiedServiceOperation;
}
/// <summary>
/// Adds a new <see cref="ServiceOperation"/> based on the specified <paramref name="method"/>
/// instance.
/// </summary>
/// <param name="method">Method to expose as a service operation.</param>
/// <param name="protocolMethod">Protocol (for example HTTP) method the service operation responds to.</param>
private void AddServiceOperation(MethodInfo method, string protocolMethod)
{
Debug.Assert(method != null, "method != null");
Debug.Assert(!method.IsAbstract, "!method.IsAbstract - if method is abstract, the type is abstract - already checked");
// This method is only called for V1 providers, since in case of custom providers,
// they are suppose to load the metadata themselves.
if (this.metadata.ServiceOperations.ContainsKey(method.Name))
{
throw new InvalidOperationException(Strings.BaseServiceProvider_OverloadingNotSupported(this.Type, method));
}
bool hasSingleResult = SingleResultAttribute.MethodHasSingleResult(method);
ServiceOperationResultKind resultKind;
ResourceType resourceType = null;
if (method.ReturnType == typeof(void))
{
resultKind = ServiceOperationResultKind.Void;
this.UpdateEdmSchemaVersion(MetadataEdmSchemaVersion.Version1Dot1);
}
else
{
// Load the metadata of the resource type on the fly.
// For Edm provider, it might not mean anything, but for reflection service provider, we need to
// load the metadata of the type if its used only in service operation case
Type resultType = null;
if (WebUtil.IsPrimitiveType(method.ReturnType))
{
resultKind = ServiceOperationResultKind.DirectValue;
resultType = method.ReturnType;
resourceType = ResourceType.GetPrimitiveResourceType(resultType);
}
else
{
Type queryableElement = GetGenericInterfaceElementType(method.ReturnType, IQueryableTypeFilter);
if (queryableElement != null)
{
resultKind = hasSingleResult ?
ServiceOperationResultKind.QueryWithSingleResult :
ServiceOperationResultKind.QueryWithMultipleResults;
resultType = queryableElement;
}
else
{
Type enumerableElement = GetIEnumerableElement(method.ReturnType);
if (enumerableElement != null)
{
resultKind = ServiceOperationResultKind.Enumeration;
resultType = enumerableElement;
}
else
{
resultType = method.ReturnType;
resultKind = ServiceOperationResultKind.DirectValue;
this.UpdateEdmSchemaVersion(MetadataEdmSchemaVersion.Version1Dot1);
}
}
Debug.Assert(resultType != null, "resultType != null");
resourceType = ResourceType.GetPrimitiveResourceType(resultType);
if (resourceType == null)
{
resourceType = this.PopulateMetadataForType(resultType, this.TypeCache, this.ChildTypesCache, this.EntitySets.Values);
}
}
if (resourceType == null)
{
throw new InvalidOperationException(Strings.BaseServiceProvider_UnsupportedReturnType(method, method.ReturnType));
}
if (resultKind == ServiceOperationResultKind.Enumeration && hasSingleResult)
{
throw new InvalidOperationException(Strings.BaseServiceProvider_IEnumerableAlwaysMultiple(this.Type, method));
}
if (hasSingleResult ||
(!hasSingleResult &&
(resourceType.ResourceTypeKind == ResourceTypeKind.ComplexType ||
resourceType.ResourceTypeKind == ResourceTypeKind.Primitive)))
{
this.UpdateEdmSchemaVersion(MetadataEdmSchemaVersion.Version1Dot1);
}
}
ParameterInfo[] parametersInfo = method.GetParameters();
ServiceOperationParameter[] parameters = new ServiceOperationParameter[parametersInfo.Length];
for (int i = 0; i < parameters.Length; i++)
{
ParameterInfo parameterInfo = parametersInfo[i];
if (parameterInfo.IsOut || parameterInfo.IsRetval)
{
throw new InvalidOperationException(Strings.BaseServiceProvider_ParameterNotIn(method, parameterInfo));
}
ResourceType parameterType = ResourceType.GetPrimitiveResourceType(parameterInfo.ParameterType);
if (parameterType == null)
{
throw new InvalidOperationException(
Strings.BaseServiceProvider_ParameterTypeNotSupported(method, parameterInfo, parameterInfo.ParameterType));
}
string parameterName = parameterInfo.Name ?? "p" + i.ToString(CultureInfo.InvariantCulture);
parameters[i] = new ServiceOperationParameter(parameterName, parameterType);
}
ResourceSet container = null;
if (resourceType != null && resourceType.ResourceTypeKind == ResourceTypeKind.EntityType)
{
if (!this.TryFindAnyContainerForType(resourceType, out container))
{
throw new InvalidOperationException(
Strings.BaseServiceProvider_ServiceOperationMissingSingleEntitySet(method, resourceType.FullName));
}
}
ServiceOperation operation = new ServiceOperation(method.Name, resultKind, resourceType, container, protocolMethod, parameters);
operation.CustomState = method;
MimeTypeAttribute attribute = MimeTypeAttribute.GetMimeTypeAttribute(method);
if (attribute != null)
{
operation.MimeType = attribute.MimeType;
}
this.metadata.ServiceOperations.Add(method.Name, operation);
}
/// <summary>Given the specified name, tries to find a service operation.</summary>
/// <param name="name">Name of the service operation to resolve.</param>
/// <param name="serviceOperation">Returns the resolved service operation, null if no service operation was found for the given name.</param>
/// <returns>True if we found the service operation for the given name, false otherwise.</returns>
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
Debug.Assert(!string.IsNullOrEmpty(name), "!string.IsNullOrEmpty(name)");
return(this.metadata.ServiceOperations.TryGetValue(name, out serviceOperation));
}
/// <summary>
/// Initializes a new <see cref="ServiceOperationWrapper"/> instance.
/// </summary>
/// <param name="serviceOperation">ServiceOperation instance to be wrapped.</param>
private ServiceOperationWrapper(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "serviceOperation != null");
this.serviceOperation = serviceOperation;
}
/// <summary>
/// Validates if the service operation should be visible and is read only. If the service operation
/// rights are set to None the service operation should not be visible.
/// </summary>
/// <param name="serviceOperation">Service operation to be validated.</param>
/// <returns>Validated service operation, null if the service operation is not supposed to be visible.</returns>
public ServiceOperationWrapper ValidateServiceOperation(ServiceOperation serviceOperation)
{
DebugUtils.CheckNoExternalCallers();
ServiceOperationWrapper serviceOperationWrapper = null;
if (serviceOperation != null)
{
// For IDSP, we want to make sure the metadata object instance stay the same within
// a request because we do reference comparisons. Note the provider can return
// different metadata instances within the same request. The the Validate*() methods
// will make sure to return the first cached instance.
if (!this.serviceOperationCache.TryGetValue(serviceOperation.Name, out serviceOperationWrapper))
{
ValidateServiceOperationReadOnly(serviceOperation);
serviceOperationWrapper = ServiceOperationWrapper.CreateServiceOperationWrapper(serviceOperation, this.ValidateResourceSet, this.ValidateResourceType);
this.serviceOperationCache[serviceOperation.Name] = serviceOperationWrapper;
}
}
return serviceOperationWrapper;
}
/// <summary>
/// Throws if <paramref name="serviceOperation"/> is not sealed.
/// </summary>
/// <param name="serviceOperation">Service operation to inspect.</param>
public static void ValidateServiceOperationReadOnly(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "serviceOperation != null");
if (!serviceOperation.IsReadOnly)
{
throw new ODataException(Strings.DataServiceMetadataProviderWrapper_ServiceOperationNotReadonly(serviceOperation.Name));
}
}
private void AddServiceOperation(MethodInfo method, string protocolMethod)
{
ServiceOperationResultKind @void;
if (this.metadata.ServiceOperations.ContainsKey(method.Name))
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_OverloadingNotSupported(this.Type, method));
}
bool flag = SingleResultAttribute.MethodHasSingleResult(method);
ResourceType primitive = null;
if (method.ReturnType == typeof(void))
{
@void = ServiceOperationResultKind.Void;
}
else
{
System.Type returnType;
if (WebUtil.IsPrimitiveType(method.ReturnType))
{
@void = ServiceOperationResultKind.DirectValue;
returnType = method.ReturnType;
primitive = ResourceType.PrimitiveResourceTypeMap.GetPrimitive(returnType);
}
else
{
System.Type genericInterfaceElementType = GetGenericInterfaceElementType(method.ReturnType, new TypeFilter(BaseServiceProvider.IQueryableTypeFilter));
if (genericInterfaceElementType != null)
{
@void = flag ? ServiceOperationResultKind.QueryWithSingleResult : ServiceOperationResultKind.QueryWithMultipleResults;
returnType = genericInterfaceElementType;
}
else
{
System.Type iEnumerableElement = GetIEnumerableElement(method.ReturnType);
if (iEnumerableElement != null)
{
@void = ServiceOperationResultKind.Enumeration;
returnType = iEnumerableElement;
}
else
{
returnType = method.ReturnType;
@void = ServiceOperationResultKind.DirectValue;
}
}
primitive = ResourceType.PrimitiveResourceTypeMap.GetPrimitive(returnType);
if (primitive == null)
{
primitive = this.PopulateMetadataForType(returnType, this.TypeCache, this.ChildTypesCache, this.EntitySets.Values);
}
}
if (primitive == null)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_UnsupportedReturnType(method, method.ReturnType));
}
if ((@void == ServiceOperationResultKind.Enumeration) && flag)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_IEnumerableAlwaysMultiple(this.Type, method));
}
}
ParameterInfo[] parameters = method.GetParameters();
ServiceOperationParameter[] parameterArray = new ServiceOperationParameter[parameters.Length];
for (int i = 0; i < parameterArray.Length; i++)
{
ParameterInfo info = parameters[i];
if (info.IsOut || info.IsRetval)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_ParameterNotIn(method, info));
}
ResourceType parameterType = ResourceType.PrimitiveResourceTypeMap.GetPrimitive(info.ParameterType);
if (parameterType == null)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_ParameterTypeNotSupported(method, info, info.ParameterType));
}
string name = info.Name ?? ("p" + i.ToString(CultureInfo.InvariantCulture));
parameterArray[i] = new ServiceOperationParameter(name, parameterType);
}
ResourceSet container = null;
if (((primitive != null) && (primitive.ResourceTypeKind == ResourceTypeKind.EntityType)) && !this.TryFindAnyContainerForType(primitive, out container))
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_ServiceOperationMissingSingleEntitySet(method, primitive.FullName));
}
ServiceOperation operation = new ServiceOperation(method.Name, @void, primitive, container, protocolMethod, parameterArray)
{
CustomState = method
};
MimeTypeAttribute mimeTypeAttribute = MimeTypeAttribute.GetMimeTypeAttribute(method);
if (mimeTypeAttribute != null)
{
operation.MimeType = mimeTypeAttribute.MimeType;
}
this.metadata.ServiceOperations.Add(method.Name, operation);
}
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
WebUtil.CheckStringArgumentNullOrEmpty(name, "name");
return(this.metadata.ServiceOperations.TryGetValue(name, out serviceOperation));
}
/// <summary>Invokes the specified service operation.</summary>
/// <param name="serviceOperation">The service operation to invoke.</param>
/// <param name="parameters">The parameters for the service operation. Their types will match the types of the declared parameters for the service operation.</param>
/// <returns>The result of the service operation.
/// If the service operation is declared to return void, this method should return null.
/// Otherwise the method should return object of the type declared as the return type for the service operation.</returns>
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
if (invokeServiceOperationDel != null)
return invokeServiceOperationDel(serviceOperation, parameters);
throw new NotSupportedException("No service operation handler has been registered.");
}
/// <summary>Gets the effective rights on the specified operation.</summary>
/// <param name="serviceOperation">Operation to get rights for.</param>
/// <returns>The effective rights as per this configuration.</returns>
internal ServiceOperationRights GetServiceOperationRights(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "operation != null");
Debug.Assert(this.serviceRights != null, "this.serviceRights != null");
ServiceOperationRights result;
if (!this.serviceRights.TryGetValue(serviceOperation.Name, out result))
{
result = this.rightsForUnspecifiedServiceOperation;
}
return result;
}
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
return _serviceOperations.TryGetValue(name, out serviceOperation);
}
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
object obj2;
WebUtil.CheckArgumentNull<ServiceOperation>(serviceOperation, "serviceOperation");
try
{
obj2 = ((MethodInfo) serviceOperation.CustomState).Invoke(this.dataServiceInstance, BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Instance, null, parameters, CultureInfo.InvariantCulture);
}
catch (TargetInvocationException exception)
{
ErrorHandler.HandleTargetInvocationException(exception);
throw;
}
return obj2;
}
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
serviceOperation = null;
return false;
}
private void AddServiceOperation(MethodInfo method, string protocolMethod)
{
ServiceOperationResultKind @void;
if (this.metadata.ServiceOperations.ContainsKey(method.Name))
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_OverloadingNotSupported(this.Type, method));
}
bool flag = SingleResultAttribute.MethodHasSingleResult(method);
ResourceType primitive = null;
if (method.ReturnType == typeof(void))
{
@void = ServiceOperationResultKind.Void;
}
else
{
System.Type returnType;
if (WebUtil.IsPrimitiveType(method.ReturnType))
{
@void = ServiceOperationResultKind.DirectValue;
returnType = method.ReturnType;
primitive = ResourceType.PrimitiveResourceTypeMap.GetPrimitive(returnType);
}
else
{
System.Type genericInterfaceElementType = GetGenericInterfaceElementType(method.ReturnType, new TypeFilter(BaseServiceProvider.IQueryableTypeFilter));
if (genericInterfaceElementType != null)
{
@void = flag ? ServiceOperationResultKind.QueryWithSingleResult : ServiceOperationResultKind.QueryWithMultipleResults;
returnType = genericInterfaceElementType;
}
else
{
System.Type iEnumerableElement = GetIEnumerableElement(method.ReturnType);
if (iEnumerableElement != null)
{
@void = ServiceOperationResultKind.Enumeration;
returnType = iEnumerableElement;
}
else
{
returnType = method.ReturnType;
@void = ServiceOperationResultKind.DirectValue;
}
}
primitive = ResourceType.PrimitiveResourceTypeMap.GetPrimitive(returnType);
if (primitive == null)
{
primitive = this.PopulateMetadataForType(returnType, this.TypeCache, this.ChildTypesCache, this.EntitySets.Values);
}
}
if (primitive == null)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_UnsupportedReturnType(method, method.ReturnType));
}
if ((@void == ServiceOperationResultKind.Enumeration) && flag)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_IEnumerableAlwaysMultiple(this.Type, method));
}
}
ParameterInfo[] parameters = method.GetParameters();
ServiceOperationParameter[] parameterArray = new ServiceOperationParameter[parameters.Length];
for (int i = 0; i < parameterArray.Length; i++)
{
ParameterInfo info = parameters[i];
if (info.IsOut || info.IsRetval)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_ParameterNotIn(method, info));
}
ResourceType parameterType = ResourceType.PrimitiveResourceTypeMap.GetPrimitive(info.ParameterType);
if (parameterType == null)
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_ParameterTypeNotSupported(method, info, info.ParameterType));
}
string name = info.Name ?? ("p" + i.ToString(CultureInfo.InvariantCulture));
parameterArray[i] = new ServiceOperationParameter(name, parameterType);
}
ResourceSet container = null;
if (((primitive != null) && (primitive.ResourceTypeKind == ResourceTypeKind.EntityType)) && !this.TryFindAnyContainerForType(primitive, out container))
{
throw new InvalidOperationException(System.Data.Services.Strings.BaseServiceProvider_ServiceOperationMissingSingleEntitySet(method, primitive.FullName));
}
ServiceOperation operation = new ServiceOperation(method.Name, @void, primitive, container, protocolMethod, parameterArray) {
CustomState = method
};
MimeTypeAttribute mimeTypeAttribute = MimeTypeAttribute.GetMimeTypeAttribute(method);
if (mimeTypeAttribute != null)
{
operation.MimeType = mimeTypeAttribute.MimeType;
}
this.metadata.ServiceOperations.Add(method.Name, operation);
}
/// <summary>
/// Invoke the given service operation and returns the results.
/// </summary>
/// <param name="serviceOperation">service operation to invoke.</param>
/// <param name="parameters">value of parameters to pass to the service operation.</param>
/// <returns>returns the result of the service operation. If the service operation returns void, then this should return null.</returns>
public object InvokeServiceOperation(ServiceOperation serviceOperation, object[] parameters)
{
// Find the corresponding entry in metadata.
DomainDataServiceMetadata.DomainDataServiceOperation op = this.metadata
.ServiceOperations
.Single(e => e.Key == serviceOperation.Name)
.Value;
// Since query operations always return sequence of values even if there is a singleton result, we need
// to extract the value out of the single element comtaining sequence and hand that over to the data
// service runtime.
if (this.Result != null &&
op.OperationKind == DomainOperation.Query &&
op.ResultKind == ServiceOperationResultKind.DirectValue &&
op.ResourceSet != null)
{
return (this.Result as IEnumerable<object>).Single();
}
return this.Result;
}
/// <summary>Given the specified name, tries to find a service operation.</summary>
/// <param name="name">Name of the service operation to resolve.</param>
/// <param name="serviceOperation">Returns the resolved service operation, null if no service operation was found for the given name.</param>
/// <returns>True if we found the service operation for the given name, false otherwise.</returns>
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
Debug.Assert(!string.IsNullOrEmpty(name), "!string.IsNullOrEmpty(name)");
return this.metadata.ServiceOperations.TryGetValue(name, out serviceOperation);
}
/// <summary>
/// Creates the wrapper from the given service operation.
/// </summary>
/// <param name="serviceOperation">Service operation instance whose wrapper needs to get created.</param>
/// <param name="resourceSetValidator">Resource set validator.</param>
/// <param name="resourceTypeValidator">Resource type validator.</param>
/// <returns>Wrapper for the given service operation.</returns>
public static ServiceOperationWrapper CreateServiceOperationWrapper(
ServiceOperation serviceOperation,
Func<ResourceSet, ResourceSetWrapper> resourceSetValidator,
Func<ResourceType, ResourceType> resourceTypeValidator)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(serviceOperation != null, "serviceOperation != null");
Debug.Assert(serviceOperation.IsReadOnly, "The serviceOperation must be read-only by now.");
Debug.Assert(resourceSetValidator != null, "resourceSetValidator != null");
Debug.Assert(resourceTypeValidator != null, "resourceTypeValidator != null");
ServiceOperationWrapper serviceOperationWrapper = new ServiceOperationWrapper(serviceOperation);
#if DEBUG
serviceOperationWrapper.isReadOnly = true;
#endif
serviceOperationWrapper.resourceSet = resourceSetValidator(serviceOperation.ResourceSet);
ResourceType resultType = serviceOperation.ResultType;
if (resultType == null || resultType.ResourceTypeKind == ResourceTypeKind.Primitive)
{
// No need to validate primitive resource types
serviceOperationWrapper.resultType = resultType;
}
else
{
// Validate the resource type of the result
serviceOperationWrapper.resultType = resourceTypeValidator(resultType);
}
return serviceOperationWrapper;
}
/// <summary>Returns a service operation specified by its name.</summary>
/// <param name="name">The name of the service operation to find.</param>
/// <param name="serviceOperation">The service operation instance found.</param>
/// <returns>true if the service operation was found or false otherwise.</returns>
/// <remarks>The implementation of this method should be very fast as it will get called for many requests. It should also be fast
/// for non-existing service operations to avoid possible DoS attacks on the service.</remarks>
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
// No service operations are supported yet
serviceOperation = null;
return false;
}
/// <summary>
/// Adds a new service operation.
/// </summary>
/// <param name="name">The name of the service operation.</param>
/// <param name="resultKind">The kind of service operation.</param>
/// <param name="resultType">The type of service operation.</param>
/// <param name="resultSet">Information about the resource.</param>
/// <param name="method">The method of the service operation.</param>
/// <param name="parameters">Parameters for the service operation.</param>
/// <returns>The newly added service operation.</returns>
public ServiceOperation AddServiceOperation(string name, ServiceOperationResultKind resultKind, ResourceType resultType, ResourceSet resultSet,
string method, IEnumerable<ServiceOperationParameter> parameters)
{
ServiceOperation serviceOperation = new ServiceOperation(name, resultKind, resultType, resultSet, method, parameters);
serviceOperation.SetReadOnly();
readerWriterLock.EnterWriteLock();
try
{
this.serviceOperations.Add(name, serviceOperation);
}
finally
{
readerWriterLock.ExitWriteLock();
}
return serviceOperation;
}
/// <summary>Given the specified name, tries to find a service operation.</summary>
/// <param name="name">Name of the service operation to resolve.</param>
/// <param name="serviceOperation">Returns the resolved service operation, null if no service operation was found for the given name.</param>
/// <returns>True if we found the service operation for the given name, false otherwise.</returns>
public bool TryResolveServiceOperation(string name, out ServiceOperation serviceOperation)
{
DomainDataServiceMetadata.DomainDataServiceOperation op;
bool result = this.metadata.ServiceOperations.TryGetValue(name, out op);
serviceOperation = op;
return result;
}
/// <summary>
/// Initializes a new <see cref="ServiceOperationWrapper"/> instance.
/// </summary>
/// <param name="serviceOperation">ServiceOperation instance to be wrapped.</param>
private ServiceOperationWrapper(ServiceOperation serviceOperation)
{
Debug.Assert(serviceOperation != null, "serviceOperation != null");
this.serviceOperation = serviceOperation;
}
