/// <summary>
/// Flushes a cached page and it's parent page's list of child pages whenever a page is updated
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Rock.ModelUpdatedEventArgs"/> instance containing the event data.</param>
void Page_Updated(object sender, Rock.Data.ModelUpdatedEventArgs e)
{
// Get a reference to the updated page
Rock.Model.Page page = e.Model as Rock.Model.Page;
if (page != null)
{
// Check to see if the page being updated is cached
System.Runtime.Caching.ObjectCache cache = System.Runtime.Caching.MemoryCache.Default;
if (cache.Contains(Rock.Web.Cache.PageCache.CacheKey(page.Id)))
{
// Get the cached page
var cachedPage = Rock.Web.Cache.PageCache.Read(page.Id);
// if the parent page has changed, flush the old parent page's list of child pages
if (cachedPage.ParentPage != null && cachedPage.ParentPage.Id != page.ParentPageId)
{
cachedPage.ParentPage.FlushChildPages();
}
// Flush the updated page from cache
Rock.Web.Cache.PageCache.Flush(page.Id);
}
// Check to see if updated page has a parent
if (page.ParentPageId.HasValue)
{
// If the parent page is cached, flush it's list of child pages
if (cache.Contains(Rock.Web.Cache.PageCache.CacheKey(page.ParentPageId.Value)))
{
Rock.Web.Cache.PageCache.Read(page.ParentPageId.Value).FlushChildPages();
}
}
}
}
/// <summary>
/// 更新Cache
/// </summary>
/// <param name="cache"></param>
/// <param name="key"></param>
public static bool UpdateStore <TValue>(this System.Runtime.Caching.ObjectCache cache,
string key,
TValue item)
{
bool result = false;
if (string.IsNullOrEmpty(key))
{
return(result);
}
if (cache.Contains(key)) //檢查cache 是否有對應的資料
{
var instance = cache[key]; //取得該筆資料
lock (instance)
{
var instanceValue = ((Util.CacheExtensions.Container <TValue>)instance).Value; //取的該筆資料的值
foreach (var property in instanceValue.GetType().GetProperties()) //取得該筆資料的型別與內容物件
{
if (item.GetType().GetProperty(property.Name) != null)
{
property.SetValue(instanceValue, item.GetType().GetProperty(property.Name).GetValue(item));//更新內容
}
}
result = true;
}
}
return(result);
}
public static void RemoveItem(String CacheKeyName)
{
//
if (cache.Contains(CacheKeyName))
{
cache.Remove(CacheKeyName);
}
}
/// <summary>
/// Retrieves the asset. Tries local storage first, then moves on to the remote storage systems.
/// If neither could find the data, or if there is no remote storage set up, the failure callback is called.
/// </summary>
/// <param name="assetId">Asset identifier.</param>
/// <param name="successCallback">Callback called when the asset was successfully found.</param>
/// <param name="failureCallback">Callback called when there was a failure attempting to get the asset.</param>
/// <param name="storeResultLocally">Specifies to locally store the asset if it was fetched from a remote.</param>
public void GetAsset(Guid assetId, SuccessCallback successCallback, FailureCallback failureCallback, bool storeResultLocally = true)
{
successCallback = successCallback ?? throw new ArgumentNullException(nameof(successCallback));
failureCallback = failureCallback ?? throw new ArgumentNullException(nameof(failureCallback));
if (assetId == Guid.Empty)
{
throw new ArgumentException("Asset ID cannot be zero.", nameof(assetId));
}
if (_negativeCache != null)
{
_negativeCacheLock.EnterReadLock();
try {
if (_negativeCache.Contains(assetId.ToString("N")))
{
failureCallback();
return;
}
}
finally {
_negativeCacheLock.ExitReadLock();
}
}
// Solves GET in middle of PUT situation.
if (_localStorage.Contains(assetId) && !_localStorage.AssetWasWrittenToDisk(assetId))
{
// Asset exists, just might not be on disk yet. Wait here until the asset makes it to disk.
SpinWait.SpinUntil(() => _localStorage.AssetWasWrittenToDisk(assetId));
}
_assetReader.GetAssetAsync(assetId, asset => {
if (asset != null)
{
successCallback(asset);
return;
}
failureCallback();
if (_negativeCache != null)
{
_negativeCacheLock.EnterWriteLock();
try {
_negativeCache.Set(new System.Runtime.Caching.CacheItem(assetId.ToString("N"), 0), _negativeCachePolicy);
}
finally {
_negativeCacheLock.ExitWriteLock();
}
}
}, storeResultLocally ? ChattelReader.CacheRule.Normal : ChattelReader.CacheRule.SkipWrite);
}
/// <summary>
/// 移除Cache
/// </summary>
/// <param name="cache"></param>
/// <param name="key"></param>
public static void RemoveStore(this System.Runtime.Caching.ObjectCache cache,
string key)
{
if (string.IsNullOrEmpty(key))
{
return;
}
lock (cache)
{
if (cache.Contains(key))
{
cache.Remove(key);
}
}
}
public T Obtener <T>(string nombre) where T : class
{
try
{
if (cache.Contains(nombre))
{
return((T)cache[nombre]);
}
else
{
return(null);
}
}
catch
{
return(null);
}
}
/// <summary>
/// Flushes a cached page and it's parent page's list of child pages whenever a page is being deleted
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Rock.ModelUpdatingEventArgs"/> instance containing the event data.</param>
void Page_Deleting(object sender, Rock.Data.ModelUpdatingEventArgs e)
{
// Get a reference to the deleted page
Rock.Model.Page page = e.Model as Rock.Model.Page;
if (page != null)
{
// Check to see if the page being updated is cached
System.Runtime.Caching.ObjectCache cache = System.Runtime.Caching.MemoryCache.Default;
if (cache.Contains(Rock.Web.Cache.PageCache.CacheKey(page.Id)))
{
// Get the cached page
var cachedPage = Rock.Web.Cache.PageCache.Read(page.Id);
// if the parent page is not null, flush parent page's list of child pages
if (cachedPage.ParentPage != null)
{
cachedPage.ParentPage.FlushChildPages();
}
// Flush the updated page from cache
Rock.Web.Cache.PageCache.Flush(page.Id);
}
}
}
public void RequestTextureAssetOnCap(Guid capId, Guid assetId, AssetRequest.AssetRequestHandler handler, AssetRequest.AssetErrorHandler errHandler)
{
handler = handler ?? throw new ArgumentNullException(nameof(handler));
errHandler = errHandler ?? throw new ArgumentNullException(nameof(errHandler));
if (_negativeCache != null)
{
_negativeCacheLock.EnterReadLock();
var negCacheContainsId = false;
try {
negCacheContainsId = _negativeCache.Contains(assetId.ToString("N"));
}
finally {
_negativeCacheLock.ExitReadLock();
}
if (negCacheContainsId)
{
errHandler(new AssetError {
Error = AssetErrorType.AssetTypeWrong,
});
return;
}
}
if (_caps.TryGetValue(capId, out Capability cap))
{
cap.RequestAsset(
assetId,
(asset) => {
if (!ConfigSingleton.ValidTypes.Any(type => type == asset.Type))
{
if (_negativeCache != null)
{
_negativeCacheLock.EnterWriteLock();
try {
_negativeCache.Set(new System.Runtime.Caching.CacheItem(assetId.ToString("N"), 0), _negativeCachePolicy);
}
finally {
_negativeCacheLock.ExitWriteLock();
}
}
errHandler(new AssetError {
Error = AssetErrorType.AssetTypeWrong,
});
}
switch (asset.Type)
{
case 0:
case 12:
case 18:
case 19:
handler(asset);
break;
default:
errHandler(new AssetError {
Error = AssetErrorType.AssetTypeWrong,
});
break;
}
},
errHandler
);
return;
}
errHandler(new AssetError {
Error = AssetErrorType.CapabilityIdUnknown,
});
}
