public IVirtualFile GetFileIfCached(string virtualPath, System.Collections.Specialized.NameValueCollection queryString, IVirtualFile original)
{
//Use alternate cache key if provided
string key = original is IVirtualFileSourceCacheKey ? ((IVirtualFileSourceCacheKey)original).GetCacheKey(true) : original.VirtualPath;
//If cached, serve it.
CachedVirtualFile c = cache.Get(key);
if (c != null)
{
return(c);
}
//If not, let's cache it.
if ("mem".Equals(queryString["scache"], StringComparison.OrdinalIgnoreCase))
{
locks.TryExecute(key, 3000, delegate() {
c = cache.Get(key);
if (c == null)
{
using (Stream data = original.Open()) {//Very long-running call
c = new CachedVirtualFile(original.VirtualPath, StreamExtensions.CopyToBytes(data, true));
}
cache.Set(key, c);//Save to cache (may trigger cleanup)
}
});
return(c);
}
return(null);
}
public async Task <IVirtualFileAsync> GetFileIfCachedAsync(string virtualPath, NameValueCollection queryString, IVirtualFileAsync original)
{
//Use alternate cache key if provided
string key = original is IVirtualFileSourceCacheKey ? ((IVirtualFileSourceCacheKey)original).GetCacheKey(true) : original.VirtualPath;
//If cached, serve it.
CachedVirtualFile c = cache.Get(key);
if (c != null)
{
return(c);
}
//If not, let's cache it.
if ("mem".Equals(queryString["scache"], StringComparison.OrdinalIgnoreCase))
{
await asyncLocks.TryExecuteAsync(key, 3000, async delegate()
{
c = cache.Get(key);
if (c == null)
{
using (Stream data = await original.OpenAsync())
{//Very long-running call
c = new CachedVirtualFile(original.VirtualPath, await data.CopyToBytesAsync(true, 0x1000));
}
cache.Set(key, c);//Save to cache (may trigger cleanup)
}
});
return(c);
}
return(null);
}
public IVirtualFile GetFileIfCached(string virtualPath, System.Collections.Specialized.NameValueCollection queryString, IVirtualFile original)
{
//Use alternate cache key if provided
string key = original is IVirtualFileSourceCacheKey ? ((IVirtualFileSourceCacheKey)original).GetCacheKey(true) : original.VirtualPath;
//If cached, serve it.
CachedVirtualFile c = cache.Get(key);
if (c != null) return c;
//If not, let's cache it.
if ("mem".Equals(queryString["scache"], StringComparison.OrdinalIgnoreCase)) {
locks.TryExecute(key, 3000, delegate() {
c = cache.Get(key);
if (c == null) {
using (Stream data = original.Open()) {//Very long-running call
c = new CachedVirtualFile(original.VirtualPath, StreamExtensions.CopyToBytes(data, true));
}
cache.Set(key, c);//Save to cache (may trigger cleanup)
}
});
return c;
}
return null;
}
