/// <summary>
/// Populates the drop down list with an ordered list of cache type names.
/// The selected item is used for the button to clear all the cache of
/// that type.
/// </summary>
protected void PopulateDdlCacheTypes()
{
ddlCacheTypes.Items.Clear();
ddlCacheTypes.Items.Add(new ListItem("All Cached Items", "all"));
var cacheStats = RockCache.GetAllStatistics();
foreach (CacheItemStatistics cacheItemStat in cacheStats.OrderBy(s => s.Name))
{
ddlCacheTypes.Items.Add(new ListItem(cacheItemStat.Name, cacheItemStat.Name));
}
}
private string GetCacheInfo()
{
StringBuilder sb = new StringBuilder();
var cacheStats = RockCache.GetAllStatistics();
foreach ( CacheItemStatistics cacheItemStat in cacheStats.OrderBy( s => s.Name ) )
{
foreach ( CacheHandleStatistics cacheHandleStat in cacheItemStat.HandleStats )
{
var stats = new List<string>();
cacheHandleStat.Stats.ForEach( s => stats.Add( string.Format( "{0}: {1:N0}", s.CounterType.ConvertToString(), s.Count ) ) );
sb.AppendFormat( "<p><strong>{0}:</strong><br/>{1}</p>{2}", cacheItemStat.Name, stats.AsDelimited( ", " ), Environment.NewLine );
}
}
return sb.ToString();
}
/// <summary>
/// Computes and displays a summary of cache statistics.
/// </summary>
protected void PopulateCacheStatistics()
{
long hits = 0;
long misses = 0;
long adds = 0;
long gets = 0;
long clears = 0;
var cacheItemStatistics = new List <CacheItemStatistics>();
if (ddlCacheTypes.SelectedValue == "all")
{
cacheItemStatistics = RockCache.GetAllStatistics().OrderBy(s => s.Name).ToList();
}
else
{
cacheItemStatistics.Add(RockCache.GetStatisticsForType(ddlCacheTypes.SelectedValue));
}
foreach (CacheItemStatistics cacheItemStat in cacheItemStatistics)
{
foreach (CacheHandleStatistics cacheHandleStat in cacheItemStat.HandleStats)
{
hits += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "hits").Select(s => s.Count).FirstOrDefault();
misses += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "misses").Select(s => s.Count).FirstOrDefault();
adds += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "add calls").Select(s => s.Count).FirstOrDefault();
adds += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "put calls").Select(s => s.Count).FirstOrDefault();
gets += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "get calls").Select(s => s.Count).FirstOrDefault();
clears += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "clear calls").Select(s => s.Count).FirstOrDefault();
clears += cacheHandleStat.Stats.Where(s => s.CounterType.ConvertToString().ToLower() == "clear region calls").Select(s => s.Count).FirstOrDefault();
}
}
string htmlText = "<tr><td>Hits</td><td>{0:N0}</td><tr><td>Misses</td><td>{1:N0}</td></tr><tr><td>Adds</td><td>{2:N0}</td></tr><tr><td>Gets</td><td>{3:N0}</td></tr><tr><td>Clears</td><td>{4:N0}</td></tr>";
lCacheStatistics.Text = string.Format(htmlText, hits, misses, adds, gets, clears);
}