public static void ThrowIfError(this Iq source)
{
// do not throw error if the IQ is good
if (source == null || source.Type != IqType.Error)
{
return;
}
// throw unspecified error if no error element exists
var errorElement = source.Data["error"];
if (errorElement == null)
{
throw new XmppException("An unspecified error occured");
}
// parse error
XmppError error;
try
{
error = new XmppError(errorElement);
}
catch
{
throw new XmppException("An unspecified error occured");
}
// throw error (using error text or error condition)
if (!string.IsNullOrEmpty(error.Text))
{
throw new XmppErrorException(error, error.Text);
}
throw new XmppErrorException(error, error.Condition.ToString());
}
/// <summary>
/// Initializes a new instance of the XmppErrorException class with its message
/// string set to <paramref name="message"/> and a reference to the inner exception that
/// is the cause of this exception.
/// </summary>
/// <param name="error">The XMPP error that is the reason for the exception.</param>
/// <param name="message">A description of the error. The content of message is intended
/// to be understood by humans.</param>
/// <param name="inner">The exception that is the cause of the current exception.</param>
/// <exception cref="ArgumentNullException">The error parameter is null.</exception>
public XmppErrorException(XmppError error, string message, Exception inner)
: base(message, inner)
{
error.ThrowIfNull("error");
Error = error;
}
/// <summary>
/// Initializes a new instance of the XmppErrorException class with the specified
/// serialization and context information.
/// </summary>
/// <param name="error">The XMPP error that is the reason for the exception.</param>
/// <param name="info">An object that holds the serialized object data about the exception
/// being thrown. </param>
/// <param name="context">An object that contains contextual information about the source
/// or destination. </param>
/// <exception cref="ArgumentNullException">The error parameter is null.</exception>
protected XmppErrorException(XmppError error, SerializationInfo info, StreamingContext context)
: base(info, context)
{
error.ThrowIfNull("error");
Error = error;
}
/// <summary>
/// Initializes a new instance of the XmppErrorException class
/// </summary>
/// <param name="error">The XMPP error that is the reason for the exception.</param>
/// <exception cref="ArgumentNullException">The error parameter is null.</exception>
public XmppErrorException(XmppError error)
: base()
{
error.ThrowIfNull("error");
Error = error;
}