/// <summary>
/// Gets the current data of the specified channels.
/// </summary>
public Dto <CurData> GetCurDataStep1(IdList cnlNums, bool useCache)
{
try
{
// request data
CheckAccessRights(cnlNums);
CurData curData = RequestCurData(cnlNums, 0, useCache);
// write channel list to the cache
if (useCache && curData.CnlListID != "0")
{
memoryCache.Set(
PluginUtils.GetCacheKey("CnlList", curData.CnlListID),
cnlNums,
new MemoryCacheEntryOptions {
SlidingExpiration = WebUtils.CacheExpiration
});
}
return(Dto <CurData> .Success(curData));
}
catch (AccessDeniedException ex)
{
return(Dto <CurData> .Fail(ex.Message));
}
catch (Exception ex)
{
webContext.Log.WriteError(ex.BuildErrorMessage(WebPhrases.ErrorInWebApi, nameof(GetCurDataStep1)));
return(Dto <CurData> .Fail(ex.Message));
}
}
/// <summary>
/// Gets the current data by the channel list ID returned in step 1.
/// </summary>
public Dto <CurData> GetCurDataStep2(long cnlListID)
{
try
{
IdList cnlNums = memoryCache.Get <IdList>(PluginUtils.GetCacheKey("CnlList", cnlListID));
CurData curData = RequestCurData(cnlNums, cnlListID, true);
return(Dto <CurData> .Success(curData));
}
catch (Exception ex)
{
webContext.Log.WriteError(ex.BuildErrorMessage(WebPhrases.ErrorInWebApi, nameof(GetCurDataStep2)));
return(Dto <CurData> .Fail(ex.Message));
}
}
/// <summary>
/// Gets the current data by view.
/// </summary>
/// <remarks>Loads the specified view if it is not in the cache.</remarks>
public Dto <CurData> GetCurDataByView(int viewID, long cnlListID)
{
try
{
if (viewLoader.GetView(viewID, out ViewBase view, out string errMsg))
{
CurData curData = memoryCache.GetOrCreate(PluginUtils.GetCacheKey("CurData", viewID), entry =>
{
entry.SetAbsoluteExpiration(DataCacheExpiration);
return(RequestCurData(view.CnlNumList, cnlListID, true));
});
return(Dto <CurData> .Success(curData));
}
else
{
return(Dto <CurData> .Fail(errMsg));
}
}