/// <summary>
/// Retrieves the file data content based based on filename: dataKey.txt
/// Files must be located same folder as running routine.
/// Exceptions - ApplicationException for any issue.
/// </summary>
/// <param name="dataKey">filename without extension.</param>
/// <returns>Text file content.</returns>
public virtual DataRetrievalResult GetDataBasedOnKey(string dataKey)
{
try
{
DateTime retrievedOn = DateTime.UtcNow;
string path = dataKey + ".txt";
string fileContent = System.IO.File.ReadAllText(path);
DataRetrievalResult result = new DataRetrievalResult(dataKey, fileContent, retrievedOn);
return(result);
}
catch (Exception ex)
{
throw new ApplicationException(string.Format("Error reding file for dataKey: {0}", dataKey), ex);
}
}
void Caching()
{
ObjectCache cache = MemoryCache.Default;
DataRetrievalResult fileContents = cache[result.DataKey] as DataRetrievalResult;
if (fileContents == null)
{
CacheItemPolicy policy = new CacheItemPolicy();
policy.AbsoluteExpiration = DateTimeOffset.Now.AddMinutes(1);
List <DataRetrievalResult> filePaths = new List <DataRetrievalResult>();
filePaths.Add(result);
cache.Add(result.DataKey, result, policy);
}
else
{
result = fileContents;
}
}
public override DataRetrievalResult GetDataBasedOnKey(string dataKey)
{
result = base.GetDataBasedOnKey(dataKey);
Caching();
return(result);
}