fhir-net-api stu2的FHIR JSON to XML解析问题

Question

我正在使用库fhir-net-api dstu2将传入的FHIR JSON从Restful web service解析为BizTalk管道组件中的XML，然后将其传递给XML反汇编程序，以便在biztalk中进行辩论。大多数消息都没有问题，但我在偶尔出现的消息中得到了以下错误。

“给定编码中的无效字符。行% 1，位置12700。”

我已经检查了消息，在传入的JSON中看不到会导致此错误的任何差异。查看错误消息中给定的字符位置，fhir-net-api的XML输出显示以下问题。出于某种原因，库缩短了位置，并放入了一个捆绑标记。<Bundle xmlns="http://hl7.org/fhir"><total value="9" />

对于这里发生的事情或者如何进行故障排除，您有什么想法吗？

我不能发布完整的消息，但这里是问题区域的片段。

输入JSON代码段

"hospitalization": {"dischargeDiagnosis": [         {
        "reference": "#Reason",
        "display": "DWA-Discharged with Approval"
     }]},
     "location": [{"location": {"display": "SPH 4th Bunny Dr’s Clinic"}}],
     "serviceProvider": {"display": "FOO"}
  }},
  {"resource":       {
     "resourceType": "Encounter",
     "id": "FOO0009-394a-4c51",
     "extension":          [

输出XML代码段

<hospitalization>
    <dischargeDiagnosis>
        <reference value="#Reason" />
        <display value="DWA-Discharged with Approval" />
    </dischargeDiagnosis>
</hospitalization>
<location>
    <location>
        <display value="SPH 4<Bundle xmlns="http://hl7.org/fhir">
                        <total value="9" />
<entry>
    <resource>
        <Encounter>

EDIT -I隔离了问题资源并取消了消息的识别。下面是导致上述错误的完整JSON消息。我尝试了FHIR JSON to XML notepad++插件，它正确地序列化了消息。

以下是管道组件的代码。

     Hl7.Fhir.Serialization.ResourceReader resourceReader = new Hl7.Fhir.Serialization.ResourceReader(FhirJsonParser.CreateFhirReader(json), ParserSettings.Default);


  string resourceXmlString = Hl7.Fhir.Serialization.FhirSerializer.SerializeResourceToXml(resourceReader.Deserialize());

以下是导致该问题的JSON

{
   "resourceType": "Bundle",
   "total": 1,
   "entry":    [
     {"resource":       {
         "resourceType": "Encounter",
         "id": "10000000-0000-0000-000-200000000",
         "extension":          [
                        {
               "url": "https://foo.org/documents/fhir/extensions/encounter-facility",
               "valueString": "St. Foo Hospital"
            },
                        {
               "url": "https://foo.org/documents/fhir/extensions/encounter-service",
               "valueString": "Foo PROGRAM/Foo ECHOCARDIOLOGY"
            },
                        {
               "url": "https://foo.org/documents/fhir/extensions/encounter-patienttype",
               "valueString": "Diagnostic - Outpatient"
            },
                        {
               "url": "https://foo.org/documents/fhir/extensions/encounter-documentcount",
               "valueInteger": 0
            },
                        {
               "url": "https://foo.org/documents/fhir/extensions/encounter-entitysourcesystem",
               "valueString": "CDR"
            },
                        {
               "url": "https://foo.org/documents/fhir/extensions/encounter-mrnid",
               "valueString": "10000000"
            }
         ],
         "identifier":          [
                        {
               "use": "official",
               "value": "1000000-5420-0000-0000-00000"
            },
                        {
               "use": "secondary",
               "value": "100000000000"
            }
         ],
         "patient": {"reference": "Patient/000000000"},
         "participant":          [
                        {
               "type": [               {
                  "coding": [                  {
                     "system": "http://hl7.org/fhir/v3/ParticipationType",
                     "code": "PRCP"
                  }],
                  "text": "Primary Care Physician"
               }],
               "individual": {"display": "Foo, Guy"}
            },
                        {
               "type": [               {
                  "coding": [                  {
                     "system": "http://hl7.org/fhir/v3/ParticipationType",
                     "code": "ATND"
                  }],
                  "text": "Attending Physician"
               }],
               "individual": {"display": "RFoo, JFoo L"}
            }
         ],
         "period":          {
            "start": "2015-10-27T13:59:00+00:00",
            "end": "2017-02-17T09:39:07+00:00"
         },
         "reason": [         {
            "coding": [            {
               "system": "http://www.ihtsdo.org/snomed-ct",
               "code": "33962009"
            }],
            "text": "ECHOCARDIOGRAM"
         }],
         "hospitalization": {"dischargeDiagnosis": [         {
            "reference": "#Reason",
            "display": "DWA-Discharged with Approval"
         }]},
         "location": [{"location": {"display": "SPH 4th Foo Dr’s Clinic"}}],
         "serviceProvider": {"display": "Foo_foo"}
      }}

   ]
}

Answer 1

错误消息“无效字符在给定的编码中”没有出现在FHIR .NET应用程序接口的源代码中，但是它在.NET XmlReader的上下文中出现在google上。因此，我的第一个猜测是，json可以正确解析(任何Unicode字符都可以包含在json字符串中)，然后转换为XML，其中的字符不会被转义。然后，当BizTalk处理XML时，它就会遇到麻烦。

这很有趣，因为我只使用XMLXML库来序列化成.NET，所以它不应该生成非法的XML.也许-and这是在XML端--有没有一个设置来指示BizTalk中的BizTalk管道中使用的编码？