/*---------------------------------------------------------------------------------------
* Response from data.gov.au is a JSON string. If successful, it will look something like:
* {
* "help": "...",
* "success"": true,
* "result": {
* "resource_group_id" : "...",
* "cache_last_updated" : null,
* "datastore_active": false,
* ...
* }
* }
* If unsuccessful, the response will look something like:
* {
* "help": "...",
* "success"": false,
* "error": {
* ""__type" : "Validation Error"
* }
* }
*---------------------------------------------------------------------------------------*/
public static DataGovOutcome InterpretResponse(string postStatus)
{
Dictionary <string, Object> ResponseFields = Deserialise(postStatus);
DataGovOutcome Outcome = new DataGovOutcome();
Outcome.PostStatus = postStatus;
string OutcomeStatusMessage = ExtractOutcome(ResponseFields);
string OutcomeStatusBody = ExtractResponseValues(ResponseFields);
Outcome.Success = !(String.IsNullOrEmpty(OutcomeStatusMessage));
Outcome.FormattedMessage = OutcomeStatusMessage + "\r\n" + OutcomeStatusBody;
return(Outcome);
}
//---------------------------------------------------------------------------------------
void SubmitButton_Click(Object sender, EventArgs e)
{
try {
DataGovOutcome Outcome = DataGovManager.UploadToDataGov(SetParameters());
TextBoxOutcome.Text = Outcome.FormattedMessage;
this.SuccessPlace.Visible = true;
this.ErrorPlace.Visible = false;
;
}
catch (Exception ex) {
TextBoxOutcome.Text = ex.ToString();
this.ErrorPlace.Visible = true;
this.SuccessPlace.Visible = false;
}
}
/*---------------------------------------------------------------------------------------
* Upload a new version of the document as a multipart/form-data
* ---------------------------------------------------------------------------------------*/
private static DataGovOutcome Postfile(DataGovParameters parameters)
{
// Boundary is a unique string used to deliminate form values sent in the request
string Boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
byte[] BoundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + Boundary + "\r\n");
HttpWebRequest PostRequest = null;
Stream PostStream = null;
DataGovOutcome Outcome = new DataGovOutcome();
try {
PostRequest = ConfigureUploadRequest(parameters, Boundary);
PostStream = PostRequest.GetRequestStream();
PostStandardFormHeader(PostStream, BoundaryBytes, parameters);
PostFilenameHeader(PostStream, BoundaryBytes, parameters.Filename);
PostFileContentsData(PostStream, parameters.Filename);
PostTrailerData(PostStream, Boundary);
Outcome.PostStatus = ReadPostResponse(PostRequest);
Outcome.Success = true;
} // The web response may contain more information about the exception
catch (WebException ex) {
if (ex.Response != null)
{
using (Stream ErrorStream = ex.Response.GetResponseStream())
using (StreamReader reader = new StreamReader(ErrorStream)) {
Outcome.PostStatus = reader.ReadToEnd();
Outcome.Success = false;
return(Outcome);
}
}
else
{
throw;
}
}
catch {
throw;
}
finally {
if (PostStream != null)
{
PostStream.Close();
PostRequest = null;
}
}
return(Outcome);
}
//---------------------------------------------------------------------------------------
public static DataGovOutcome UploadToDataGov(DataGovParameters parameters)
{
DataGovOutcome Outcome = null;
try {
Outcome = Postfile(parameters);
if (Outcome.Success)
{
return(ResponseInterpreter.InterpretResponse(Outcome.PostStatus));
}
else
{
return(Outcome);
}
}
catch {
throw;
}
}