/// <summary>
/// Enables inspection or modification of a message before a request message is sent to a service.
/// </summary>
/// <param name="request">The message to be sent to the service.</param>
/// <param name="channel">The client object channel.</param>
/// <returns>
/// The object that is returned as the correlationState argument of
/// the <see cref="M:System.ServiceModel.Dispatcher.IClientMessageInspector.AfterReceiveReply(System.ServiceModel.Channels.Message@,System.Object)"/>
/// method. This is null if no correlation state is used.The best practice is to make this a <see cref="T:System.Guid"/>
/// to ensure that no two correlationState objects are the same.
/// </returns>
public object BeforeSendRequest(ref Message request, IClientChannel channel)
{
if (MessageHeaderData == null)
{
// custermize the message header data
messageHeaderData = new CustomizedMessageHeaderData();
}
int index = request.Headers.FindHeader(CustomizedMessageHeaderConstants.MessageHeaderDataName, CustomizedMessageHeaderConstants.MessageHeaderDataNamespace);
if (index < 0)
{
// modify the message headers before the request message is sent out
MessageHeader header = MessageHeader.CreateHeader(CustomizedMessageHeaderConstants.MessageHeaderDataName, CustomizedMessageHeaderConstants.MessageHeaderDataNamespace, MessageHeaderData);
request.Headers.Add(header);
}
return(null);
}
/// <summary>
/// 将定制的消息头内容填入至消息中
/// </summary>
/// <typeparam name="TContract">服务契约类型</typeparam>
/// <param name="factory">服务通道创建工厂</param>
/// <param name="endpoint">服务通道终结点</param>
/// <param name="messageHeader">定制的消息头</param>
private static void FixInternal <TContract>(ChannelFactory <TContract> factory, ServiceEndpoint endpoint, CustomizedMessageHeaderData messageHeader) where TContract : class
{
if (endpoint != null)
{
foreach (OperationDescription operation in factory.Endpoint.Contract.Operations)
{
DataContractSerializerOperationBehavior behavior;
if (!operation.Behaviors.Contains(typeof(DataContractSerializerOperationBehavior)))
{
behavior = new DataContractSerializerOperationBehavior(operation);
operation.Behaviors.Add(behavior);
}
else
{
behavior = operation.Behaviors[typeof(DataContractSerializerOperationBehavior)] as DataContractSerializerOperationBehavior;
}
foreach (OperationDescription originalOperation in endpoint.Contract.Operations)
{
if (operation.Name == originalOperation.Name)
{
DataContractSerializerOperationBehavior originalBehavior = originalOperation.Behaviors[typeof(DataContractSerializerOperationBehavior)] as DataContractSerializerOperationBehavior;
if (behavior != null && originalBehavior != null)
{
behavior.IgnoreExtensionDataObject = originalBehavior.IgnoreExtensionDataObject;
behavior.MaxItemsInObjectGraph = originalBehavior.MaxItemsInObjectGraph;
}
break;
}
}
}
}
if (!factory.Endpoint.Behaviors.Contains(typeof(CustomizedMessageBehavior)))
{
if (messageHeader == null)
{
factory.Endpoint.Behaviors.Add(new CustomizedMessageBehavior());
}
else
{
factory.Endpoint.Behaviors.Add(new CustomizedMessageBehavior(messageHeader));
}
}
}
/// <summary>
/// 将定制的消息头内容填入至消息中
/// </summary>
/// <typeparam name="TContract">服务契约类型</typeparam>
/// <param name="factory">服务通道创建工厂</param>
/// <param name="endpoint">服务通道终结点</param>
/// <param name="messageHeader">定制的消息头</param>
public static void Fix <TContract>(ChannelFactory <TContract> factory, ServiceEndpoint endpoint, CustomizedMessageHeaderData messageHeader) where TContract : class
{
FixInternal <TContract>(factory, endpoint, messageHeader);
}
/// <summary>
/// 将定制的消息头内容填入至消息中
/// </summary>
/// <typeparam name="TContract">服务契约类型</typeparam>
/// <param name="factory">服务通道创建工厂</param>
/// <param name="messageHeader">定制的消息头</param>
public static void Fix <TContract>(ChannelFactory <TContract> factory, CustomizedMessageHeaderData messageHeader) where TContract : class
{
FixInternal <TContract>(factory, null, messageHeader);
}
/// <summary>
/// 定制化消息行为
/// </summary>
/// <param name="messageHeader">定制化消息头数据</param>
public CustomizedMessageBehavior(CustomizedMessageHeaderData messageHeader)
{
messageHeaderData = messageHeader;
}
/// <summary>
/// 定制化消息行为
/// </summary>
/// <param name="messageHeader">定制化消息头数据</param>
public CustomizedMessageBehavior(CustomizedMessageHeaderData messageHeader)
{
messageHeaderData = messageHeader;
}
/// <summary>
/// Enables inspection or modification of a message before a request message is sent to a service.
/// </summary>
/// <param name="request">The message to be sent to the service.</param>
/// <param name="channel">The client object channel.</param>
/// <returns>
/// The object that is returned as the correlationState argument of
/// the <see cref="M:System.ServiceModel.Dispatcher.IClientMessageInspector.AfterReceiveReply(System.ServiceModel.Channels.Message@,System.Object)"/>
/// method. This is null if no correlation state is used.The best practice is to make this a <see cref="T:System.Guid"/>
/// to ensure that no two correlationState objects are the same.
/// </returns>
public object BeforeSendRequest(ref Message request, IClientChannel channel)
{
if (MessageHeaderData == null)
{
// custermize the message header data
messageHeaderData = new CustomizedMessageHeaderData();
}
int index = request.Headers.FindHeader(CustomizedMessageHeaderConstants.MessageHeaderDataName, CustomizedMessageHeaderConstants.MessageHeaderDataNamespace);
if (index < 0)
{
// modify the message headers before the request message is sent out
MessageHeader header = MessageHeader.CreateHeader(CustomizedMessageHeaderConstants.MessageHeaderDataName, CustomizedMessageHeaderConstants.MessageHeaderDataNamespace, MessageHeaderData);
request.Headers.Add(header);
}
return null;
}