/// <summary>
/// Handles the callback after sending a request.
/// </summary>
/// <param name="sender">The sender of the notification.</param>
/// <param name="args">The event args.</param>
private void SendRequestCallback(object sender, SendPostEventArgs args)
{
if (args.ErrorText != null)
{
string errorText = "Error in talking to HealthVault: " + args.ErrorText;
InvokeApplicationResponseCallback(args.HealthVaultRequest, null, null, errorText);
return;
}
HealthVaultResponse response = null;
try
{
response = new HealthVaultResponse(args.ResponseData);
}
catch (InvalidOperationException)
{
string errorText = "Response was not a valid HealthVault response: " + args.ResponseData;
InvokeApplicationResponseCallback(args.HealthVaultRequest, null, null, errorText);
return;
}
// The token that is returned from GetAuthenticatedSessionToken has a limited lifetime. When it expires,
// we will get an error here. We detect that situation, get a new token, and then re-issue the call.
if (response.StatusCode == AuthenticatedSessionTokenExpired)
{
RefreshSessionToken(args);
return;
}
InvokeApplicationResponseCallback(args.HealthVaultRequest, args.ResponseData, response, response.ErrorMessage);
}
/// <summary>
/// Invoke the calling application's callback.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="resultText">The raw response.</param>
/// <param name="response">The response object.</param>
/// <param name="errorText">The error text, or null if successful. </param>
private void InvokeApplicationResponseCallback(
HealthVaultRequest request,
string resultText,
HealthVaultResponse response,
string errorText)
{
HealthVaultResponseEventArgs eventArgs = new HealthVaultResponseEventArgs(request, resultText, response);
eventArgs.ErrorText = errorText;
if (request.ResponseCallback != null)
{
request.ResponseCallback(this, eventArgs);
}
}
/// <summary>
/// Initializes a new instance of the HealthVaultResponseEventArgs class.
/// </summary>
/// <param name="request">The request that is being processed.</param>
/// <param name="responseXml">The raw response xml from the request.</param>
/// <param name="response">A deserialized version of the request.</param>
public HealthVaultResponseEventArgs(
HealthVaultRequest request,
string responseXml,
HealthVaultResponse response)
{
Request = request;
ResponseXml = responseXml;
Response = response;
if (responseXml != null)
{
XElement element = XElement.Parse(responseXml);
XElement status = element.Element("status");
ErrorCode = Int32.Parse(status.Element("code").Value);
}
}
/// <summary>
/// Initializes a new instance of the HealthVaultResponseEventArgs class.
/// </summary>
/// <param name="request">The request that is being processed.</param>
/// <param name="responseXml">The raw response xml from the request.</param>
/// <param name="response">A deserialized version of the request.</param>
public HealthVaultResponseEventArgs(
HealthVaultRequest request,
string responseXml,
HealthVaultResponse response)
{
Request = request;
ResponseXml = responseXml;
Response = response;
if (responseXml != null)
{
XElement element = XElement.Parse(responseXml);
XElement status = element.Element("status");
ErrorCode = Int32.Parse(status.Element("code").Value);
}
}