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POSAP Netweaver SOAP Service returning null response to WCF client
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  1. POSAP Netweaver SOAP Service returning null response to WCF client
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    copied!<p>I've added a SAP Netweaver service reference to my project using a local WSDL. The server returns a null response, but using Fiddler I can see the correct response is being sent. I assume this means the response isn't being deserialized correctly. This is how the root response element is defined in the WSDL:</p> <pre><code>&lt;xsd:element name="adrl"&gt; &lt;xsd:complexType&gt; &lt;xsd:sequence&gt; &lt;xsd:element ref="adr" minOccurs="0" maxOccurs="unbounded"/&gt; &lt;/xsd:sequence&gt; &lt;/xsd:complexType&gt; &lt;/xsd:element&gt; </code></pre> <p>The child element (some fields elided):</p> <pre><code>&lt;xsd:element name="adr"&gt; &lt;xsd:complexType&gt; &lt;xsd:sequence&gt; &lt;xsd:element ref="id"/&gt; &lt;/xsd:sequence&gt; &lt;xsd:attribute name="op" use="required"&gt; &lt;xsd:simpleType&gt; &lt;xsd:restriction base="xsd:NMTOKEN"&gt; &lt;xsd:enumeration value="update"/&gt; &lt;xsd:enumeration value="delete"/&gt; &lt;/xsd:restriction&gt; &lt;/xsd:simpleType&gt; &lt;/xsd:attribute&gt; &lt;/xsd:complexType&gt; &lt;/xsd:element&gt; </code></pre> <p>Response:</p> <pre><code>&lt;wsdl:output message="p1:p2.adrl"/&gt; </code></pre> <p>Namespaces:</p> <pre><code>xmlns:p1="urn:mycompany:outbound" xmlns:p2="http://tempuri.org/mycompany" </code></pre> <p>SOAP response from service:</p> <pre><code>&lt;SOAP:Envelope xmlns:SOAP='http://schemas.xmlsoap.org/soap/envelope/'&gt; &lt;SOAP:Header/&gt; &lt;SOAP:Body&gt; &lt;adrl&gt; &lt;adr op='update'&gt; &lt;id&gt;9AF1FBA0-81A4-4427-A011-0DCE3BD1F609&lt;/id&gt; &lt;/adr&gt; &lt;/adrl&gt; &lt;/SOAP:Body&gt; &lt;/SOAP:Envelope&gt; </code></pre> <p>WCF class definitions (from Reference.cs):</p> <pre><code>// Some namespaces elided [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.0.30319.17929")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true, Namespace="http://tempuri.org/mycompany")] public partial class adr : object, System.ComponentModel.INotifyPropertyChanged { private string idField; // adrOP has a suitable enumeration defined elsewhere in the file private adrOP opField; /// &lt;remarks/&gt; [System.Xml.Serialization.XmlElementAttribute(Order=0)] public string id { get { return this.idField; } set { this.idField = value; this.RaisePropertyChanged("id"); } } /// &lt;remarks/&gt; [System.Xml.Serialization.XmlAttributeAttribute()] public adrOP op { get { return this.opField; } set { this.opField = value; this.RaisePropertyChanged("op"); } } public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged; protected void RaisePropertyChanged(string propertyName) { System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged; if ((propertyChanged != null)) { propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName)); } } } [System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")] [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Advanced)] [System.ServiceModel.MessageContractAttribute(IsWrapped=false)] public partial class GetAdrResponse { [System.ServiceModel.MessageBodyMemberAttribute(Namespace="http://tempuri.org/mycompany", Order=0)] [System.Xml.Serialization.XmlArrayItemAttribute("adr", IsNullable=false)] public adr[] adrl; public GetAdrResponse() { } public GetAdrResponse(adr[] adrl) { this.adrl = adrl; } } </code></pre> <p>When I try manually deserializing the response I captured in Fiddler (with adrl as the root element) I get the and Xml error with the inner exception message "" was not expected. If I <a href="https://stackoverflow.com/questions/1556874/user-xmlns-was-not-expected-deserializing-twitter-xml">add a root element</a> to the serializer the error disappears, but only the "op" attribute is properly deserialized. The rest of the fields are null.</p> <p>What could be the problem? I don't really have access to the Service but if there's something that has to change there I can forward a request. Otherwise I'm contemplating adding a MessageInspector and modifying the response, but I'm not really sure in which way it should be modified.</p> <p>EDIT: I created the object in C# and deserialized it and this was the result:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-16"?&gt; &lt;ArrayOfAdr xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt; &lt;adr op="update"&gt; &lt;id&gt;9AF1FBA0-81A4-4427-A011-0DCE3BD1F609&lt;/id&gt; &lt;/adr&gt; &lt;/ArrayOfAdr&gt; </code></pre> <p>It seems like the root element is not properly defined in terms of serialization.</p>
 

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