private void ReturnPrintCache(HttpContext context, CTSPrintManager manager)
{
HttpRequest request = context.Request;
HttpResponse response = context.Response;
//Set our output to be HTML
response.ContentType = "text/HTML";
response.ContentEncoding = Encoding.UTF8;
Guid printID = new Guid();
// Validate if the printID passed in through the URL is a valid Guid
try
{
printID = Guid.Parse(request.QueryString["printid"]);
}
catch
{
// Incorrect parameter for printid (not guid)
ErrorPageDisplayer.RaisePageByCode(this.GetType().ToString(), 400);
throw new InvalidPrintIDException("Invalid PrintID parameter for CTS Print");
}
// If there is no error, send the printID to the manager to retrieve the cached print content
string printContent = manager.GetPrintContent(printID);
printContent = printContent.Replace("${generatePrintURL}", GetEmailUrl(printID));
response.Write(printContent);
response.End();
}
/// <summary>
/// Connects to the database , and executes the stored proc with the required parameters. The
/// resulting content is the print page HTML.
/// </summary>
/// <param name="printId"></param>
/// <param name="isLive"></param>
/// <returns>A string.</returns>
public static string RetrieveResult(Guid printID, bool isLive)
{
string printPageHtml = null;
try
{
string connString = ConfigurationManager.ConnectionStrings["DbConnectionString"].ConnectionString;
if (!string.IsNullOrEmpty(connString))
{
using (SqlConnection conn = SqlHelper.CreateConnection(connString))
{
using (SqlDataReader reader =
SqlHelper.ExecuteReader(conn, CommandType.StoredProcedure, "dbo.ct_getPrintResultCache",
new SqlParameter("@PrintId ", printID),
new SqlParameter("@isLive", isLive ? 1 : 0)
))
{
if (reader.Read())
{
SqlFieldValueReader sqlFVReader = new SqlFieldValueReader(reader);
printPageHtml = sqlFVReader.GetString("content");
}
else
{
ErrorPageDisplayer.RaisePageByCode("CTSPrintDataManager", 404);
throw new PrintIDNotFoundException("The given printID did not match any cache values in the database");
}
}
}
}
else
{
ErrorPageDisplayer.RaisePageByCode("CTSPrintDataManager", 500);
throw new DbConnectionException("Configuration Missing: Connection string is null, update the web config with connection string");
}
if (!string.IsNullOrWhiteSpace(printPageHtml))
{
return(printPageHtml);
}
else
{
throw new PrintFetchFailureException("Failed in CTSPrintDataManager - Cannot return null page HTML");
}
}
catch
{
throw new PrintFetchFailureException("Failed in CTSPrintDataManager");
}
}
public void ProcessRequest(HttpContext context)
{
HttpRequest request = context.Request;
CTSPrintManager manager = new CTSPrintManager(_config);
if (request.HttpMethod == "POST")
{
GeneratePrintCacheAndRedirect(context, manager);
}
else if (request.HttpMethod == "GET")
{
ReturnPrintCache(context, manager);
}
else
{
ErrorPageDisplayer.RaisePageByCode(this.GetType().ToString(), 400);
}
}
public Guid StorePrintContent(List <String> trialIDs, DateTime date, CTSSearchParams searchTerms)
{
// Retrieve the collections given the ID's
//TODO: THese dependencies should be passed in!
BasicCTSManager manager = new BasicCTSManager(APIClientHelper.GetV1ClientInstance());
List <ClinicalTrial> results = manager.GetMultipleTrials(trialIDs).ToList();
// Send results to Velocity template
var formattedPrintContent = FormatPrintResults(results, date, searchTerms);
// Save result to cache table
Guid guid = CTSPrintResultsDataManager.SavePrintResult(formattedPrintContent, trialIDs, searchTerms, Settings.IsLive);
if (guid == Guid.Empty)
{
// Something went wrong with the save/return from the DB
ErrorPageDisplayer.RaisePageByCode(this.GetType().ToString(), 500);
throw new DbConnectionException("Unable to connect to the database. ");
}
return(guid);
}
private void GeneratePrintCacheAndRedirect(HttpContext context, CTSPrintManager manager)
{
HttpRequest request = context.Request;
HttpResponse response = context.Response;
NciUrl parsedReqUrlParams = new NciUrl(true, true, true); //We need this to be lowercase and collapse duplicate params. (Or not use an NCI URL)
parsedReqUrlParams.SetUrl(request.Url.Query);
ClinicalTrialsAPIClient apiClient = APIClientHelper.GetV1ClientInstance();
CTSSearchParams searchParams = null;
try
{
// Get mapping file names from configuration
TrialTermLookupConfig mappingConfig = new TrialTermLookupConfig();
mappingConfig.MappingFiles.AddRange(_config.MappingFiles.Select(fp => HttpContext.Current.Server.MapPath(fp)));
CTSSearchParamFactory factory = new CTSSearchParamFactory(new TrialTermLookupService(mappingConfig, apiClient), new ZipCodeGeoLookup());
searchParams = factory.Create(parsedReqUrlParams);
}
catch (Exception ex)
{
ErrorPageDisplayer.RaisePageByCode(this.GetType().ToString(), 400); //Anything here is just a bad request.
}
//Set our output to be JSON
response.ContentType = "application/json";
response.ContentEncoding = Encoding.UTF8;
//Try and get the request.
Request req = null;
try
{
req = GetRequestAndValidate(context);
}
catch (Exception)
{
ErrorPageDisplayer.RaisePageByCode(this.GetType().ToString(), 400); //Anything here is just a bad request.
return;
}
// Store the cached print content
Guid printCacheID = manager.StorePrintContent(req.TrialIDs, DateTime.Now, searchParams);
//Add in debugging helper param to make debugging templates easier.
//TODO: Refactor so get content and render is a single function.
if (parsedReqUrlParams.QueryParameters.ContainsKey("debug") && parsedReqUrlParams.QueryParameters["debug"] == "true")
{
response.ContentType = "text/HTML";
response.ContentEncoding = Encoding.UTF8;
// If there is no error, send the printID to the manager to retrieve the cached print content
string printContent = manager.GetPrintContent(printCacheID);
printContent = printContent.Replace("${generatePrintURL}", GetEmailUrl(printCacheID));
response.Write(printContent);
response.End();
}
else
{
// Format our return as JSON
var resp = JsonConvert.SerializeObject(new
{
printID = printCacheID
});
response.Write(resp);
response.End();
}
}