使用面向服务的解决方案中的管道

客户服务业务流程的内联版本 (CustomerService) 直接调用付款跟踪系统。 为准备发送的消息和处理接收的消息，业务流程将通过代码调用管道。 这将允许重用其他方案版本中的管道。 还可保持业务流程与管道阶段的分离状态。

调用管道

若要通过代码使用管道，则必须创建消息集合，向该集合添加要处理的消息，创建用于接收结果消息的空消息，然后调用管道。

CustomerService 业务流程中的以下代码位于 ConstructRequestMessageAfterSendPipeline 形状中：

// Create the collection of messages to be sent to the send pipeline...  
sendPipelineInputMessages =   
    new Microsoft.XLANGs.Pipeline.SendPipelineInputMessages();  
sendPipelineInputMessages.Add(LastPaymentRequest);  
  
// Create an empty message for the output from the pipeline...  
LastPaymentRequestAfterSendPipeline = null;  
  
// Execute the send pipeline and get the message output from   
// the send pipeline.  
Microsoft.XLANGs.Pipeline.XLANGPipelineManager.  
    ExecuteSendPipeline(  
        typeof(  
            Microsoft.Samples.BizTalk.  
                WoodgroveBank.PaymentTrackerPipelines.  
                    PaymentTrackerSendPipeline  
        ),  
        sendPipelineInputMessages,  
        LastPaymentRequestAfterSendPipeline  
    );  

GetLastPaymentResponse 形状从上述代码获取消息，将其发送到付款跟踪系统，并通过接收管道处理返回的消息：

// Execute the inline method to send the message to the   
// Payment Tracking System and get the response.  
// The response message received should be passed through the   
// receive pipeline.  
  
LastPaymentResponseBeforeReceivePipeline =   
    Microsoft.Samples.BizTalk.  
        WoodgroveBank.  
            PaymentTrackerCall.  
                PaymentTrackerCaller.  
                    GetPaymeTrackerResponse  
                    (  
                        LastPaymentRequestAfterSendPipeline  
                    );   
  
// Execute the receive pipeline using the helper class so that we don't  
// need to declare the non-serializable types involved.  
  
// Set the documentspec name so the xml disassembler in the   
// pipeline can resolve the schemas for the received message  
// without ambiguity.  
LastPaymentResponseBeforeReceivePipeline(XMLNORM.DocumentSpecName) =   
"Microsoft.Samples.BizTalk.WoodgroveBank.Schemas.LastPaymentResponse, Microsoft.Samples.BizTalk.WoodgroveBank.Schemas, Version=1.0.0.0, Culture=neutral, PublicKeyToken=5f57a322d27bc5fb";  
// Create an empty response message and fill it in with the   
// real response from the Payment Tracking System  
LastPaymentResponse = null;  
  
Microsoft.Samples.BizTalk.WoodgroveBank.Utilities.  
    ReceivePipelineHelper.CallReceivePipeLine (  
        typeof(  
            Microsoft.Samples.BizTalk.WoodgroveBank.  
                PaymentTrackerPipelines.PaymentTrackerReceivePipeline  
            ),  
            LastPaymentResponseBeforeReceivePipeline,  
            LastPaymentResponse  
        );  

另请参阅

面向服务的解决方案的实施要点