FHIR JSON到BizTalk中的XML解码

时间:2017-02-17 00:54:17

标签: biztalk hl7-fhir dstu2-fhir biztalk-pipelines

我刚刚开始使用FHIR和json,所以我的问题可能不是很好。

我已经构建了一个BizTalk管道组件,使用此库https://github.com/ewoutkramer/fhir-net-api将FHIR-json转换为FHIR-xml,基于我在此处找到的示例,http://soapfault.com/blog/2016/08/hl7-fhir-json-decoding-in-biztalk/

以下是管道组件的代码段。它与示例几乎完全相同。

//Read the json message
                        using (TextReader tr = new StreamReader(originalDataStream))
                        {
                            json = tr.ReadToEnd();
                        }

                        //Use FHIR-NET-API to create a FHIR resource from the json
                        Hl7.Fhir.Serialization.ResourceReader resourceReader = new Hl7.Fhir.Serialization.ResourceReader(FhirJsonParser.CreateFhirReader(json), ParserSettings.Default);

                        //Use FHIR-NET-API to serialize the resource to XML
                        byte[] resourceXmlBytes = Hl7.Fhir.Serialization.FhirSerializer.SerializeToXmlBytes(resourceReader.Deserialize());

管道组件能够解码以...开头的任何单个json FHIR消息     { "resourceType": "ImagingStudy",

但是我在这样的消息上得到了解析错误,

{
  "resourceType" : "Bundle",
  "entry" : [{
      "resource" : {
        "resourceType" : "ImagingStudy",

{
  "entry": [
    {
      "fullUrl":     "http://fhirtest.uhn.ca/baseDstu2/ImagingStudy/EXexample",
      "resource": {
        "resourceType": "ImagingStudy",

以下是我遇到的一些错误,

There was a failure executing the receive pipeline: "LALALA.Imaging.Pipelines.FHIRJasonDecoderRP, LALALA.Imaging.Pipelines, Version=1.0.0.0, Culture=neutral, PublicKeyToken=19bb8b5ea64396aa" Source: "FHIRJsonDecoder" Receive Port: "RP_LA_Test_FILE" URI: "D:\Projects\LALALA.Imaging\In\*.json" Reason: Data at the root level is invalid. Line 1, position 1.

OR

Reason: At line 1, pos 1: Cannot determine type of resource to create from json input data: no member resourceType was found

对于我的解决方案,最终目标是能够将FHIR图像研究消息的捆绑解析为单个fhir xml消息,然后映射到HL7 ORU消息。

对上述问题的任何帮助或有关如何使用BizTalk实现我的最终目标的建议将不胜感激。

1 个答案:

答案 0 :(得分:0)

通常没有必要直接调用ResourceReader,但是我试图像这样重现你的错误:

\s*

然而,两者都很好。阅读流时可能出现问题?

您也可以尝试直接从流中阅读:

var json = @"{
            ""resourceType"" : ""Bundle"",
            ""entry"" : [{
                  ""resource"" : {
                       ""resourceType"" : ""ImagingStudy""
                                       }}]}";

// SHORT VERSION: var b = new FhirJsonParser().Parse<Bundle>(json);
var b = new     
             Hl7.Fhir.Serialization.ResourceReader(
               FhirJsonParser.CreateFhirReader(json),  
                          ParserSettings.Default).Deserialize();

Assert.IsNotNull(b);