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c#xmlxmppdeserialization
nhenrique
nhenrique

Reputation: 894

Deserialize xml xmpp message to object

I'm trying to deserialize a xml string to a c# object. This is the message:

<message from='test1@localhost' to='test2@localhost'><result xmlns='urn:xmpp:mam:tmp' id='A6QV1I4TKO81'><forwarded xmlns='urn:xmpp:forward:0'><delay xmlns='urn:xmpp:delay' from='test1@localhost' stamp='2015-07-21T09:12:09Z'></delay><message type='mchat'><subject/><body/></message></forwarded></result></message>

And this is the class

public class Delay {
    [XmlAttribute(AttributeName="xmlns")]
    public string Xmlns { get; set; }
    [XmlAttribute(AttributeName="from")]
    public string From { get; set; }
    [XmlAttribute(AttributeName="stamp")]
    public string Stamp { get; set; }
}

public class Active {
    [XmlAttribute(AttributeName="xmlns")]
    public string Xmlns { get; set; }
}

public class XmppMessage {
    [XmlElement(ElementName="body")]
    public string Body { get; set; }
    [XmlAttribute(AttributeName="lang")]
    public string Lang { get; set; }
    [XmlAttribute(AttributeName="type")]
    public string Type { get; set; }
    [XmlAttribute(AttributeName="id")]
    public string Id { get; set; }
    [XmlAttribute(AttributeName="to")]
    public string To { get; set; }
}

public class Forwarded {
    [XmlElement(ElementName="delay")]
    public Delay Delay { get; set; }
    [XmlElement(ElementName="message")]
    public XmppMessage Message { get; set; }
    [XmlAttribute(AttributeName="xmlns")]
    public string Xmlns { get; set; }
}

public class Result {
    [XmlElement(ElementName="forwarded")]
    public Forwarded Forwarded { get; set; }
    [XmlAttribute(AttributeName="xmlns")]
    public string Xmlns { get; set; }
    [XmlAttribute(AttributeName="id")]
    public string Id { get; set; }
}

[XmlRoot(ElementName="message")]
public class MessageHistory {
    [XmlElement(ElementName="result")]
    public Result Result { get; set; }
    [XmlAttribute(AttributeName="from")]
    public string From { get; set; }
    [XmlAttribute(AttributeName="to")]
    public string To { get; set; }
}

This is the code to deserialise:

MessageHistory messageNode;             
XmlSerializer serializer = new XmlSerializer(typeof(MessageHistory));
using (StringReader reader = new StringReader(message))
                    {
                        messageNode = (MessageHistory)(serializer.Deserialize(reader));
                    }

The object property "from" and "to" are fine but the "Result" is returning null. I can't understand what I'm missing here...

Upvotes: 0

Views: 172

Answers (1)

Volkan Paksoy
Volkan Paksoy

Reputation: 6977

The problem is the namespaces in the XML. you have to specify the namespaces explicitly, like this:

public class Forwarded
{
    [XmlElement(ElementName = "delay", Namespace = "urn:xmpp:delay")]
    public Delay Delay { get; set; }
    [XmlElement(ElementName = "message")]
    public XmppMessage Message { get; set; }
    [XmlAttribute(AttributeName = "xmlns")]
    public string Xmlns { get; set; }
}

public class Result
{
    [XmlElement(ElementName = "forwarded", Namespace = "urn:xmpp:forward:0")]
    public Forwarded Forwarded { get; set; }
    [XmlAttribute(AttributeName = "xmlns")]
    public string Xmlns { get; set; }
    [XmlAttribute(AttributeName = "id")]
    public string Id { get; set; }
}

[XmlRoot(ElementName = "message")]
public class MessageHistory
{
    [XmlElement(ElementName = "result", Namespace = "urn:xmpp:mam:tmp")]
    public Result Result { get; set; }
    [XmlAttribute(AttributeName = "from")]
    public string From { get; set; }
    [XmlAttribute(AttributeName = "to")]
    public string To { get; set; }
}

Upvotes: 2

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