public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state)
{
#if Webhosted
Cache cache = GetCache();
#else
ObjectCache cache = this.GetCache();
#endif
string cacheKey = this.CreateCacheKey(inputs);
CachedResult cacheItem = cache[cacheKey] as CachedResult;
CachingUserState cachingUserState = new CachingUserState
{
CacheItem = cacheItem,
CacheKey = cacheKey,
OriginalUserCallback = callback,
OriginalUserState = state
};
IAsyncResult originalAsyncResult;
if (cacheItem != null)
{
InvokerDelegate invoker = cacheItem.GetValue;
object[] dummy;
originalAsyncResult = invoker.BeginInvoke(inputs, out dummy, this.InvokerCallback, cachingUserState);
}
else
{
originalAsyncResult = this.originalInvoker.InvokeBegin(instance, inputs, this.InvokerCallback, cachingUserState);
}
return new CachingAsyncResult(originalAsyncResult, cachingUserState);
}
public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state)
{
string cacheKey = WebOperationContext.Current.IncomingRequest.UriTemplateMatch.RequestUri.ToString();
CachedResult cacheResult = this.datacache.Get(cacheKey) as CachedResult;
CachingUserState cachingUserState = new CachingUserState
{
CacheItem = cacheResult,
CacheKey = cacheKey,
OriginalUserCallback = callback,
OriginalUserState = state
};
IAsyncResult asyncResult;
if (cacheResult != null)
{
InvokerDelegate invoker = cacheResult.GetValue;
object[] outputs;
asyncResult = invoker.BeginInvoke(inputs, out outputs, this.InvokerCallback, cachingUserState);
}
else
{
asyncResult = this.operationInvoker.InvokeBegin(instance, inputs, this.InvokerCallback, cachingUserState);
}
return new CachingAsyncResult(asyncResult, cachingUserState);
}
public object InvokeEnd(object instance, out object[] outputs, IAsyncResult asyncResult)
{
CachingAsyncResult cachingAsyncResult = asyncResult as CachingAsyncResult;
CachingUserState cachingUserState = cachingAsyncResult.CachingUserState;
if (cachingUserState.CacheItem == null)
{
object result = this.originalInvoker.InvokeEnd(instance, out outputs, cachingAsyncResult.OriginalAsyncResult);
cachingUserState.CacheItem = new CachedResult {
ReturnValue = result, Outputs = outputs
};
#if Webhosted
this.GetCache().Insert(cachingUserState.CacheKey, cachingUserState.CacheItem, null, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(this.cacheDuration));
#else
this.GetCache().Add(cachingUserState.CacheKey, cachingUserState.CacheItem, DateTimeOffset.UtcNow.Add(TimeSpan.FromSeconds(this.cacheDuration)));
#endif
return(result);
}
else
{
InvokerDelegate invoker = ((System.Runtime.Remoting.Messaging.AsyncResult)cachingAsyncResult.OriginalAsyncResult).AsyncDelegate as InvokerDelegate;
invoker.EndInvoke(out outputs, cachingAsyncResult.OriginalAsyncResult);
return(cachingUserState.CacheItem.ReturnValue);
}
}
public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state)
{
#if Webhosted
Cache cache = GetCache();
#else
ObjectCache cache = this.GetCache();
#endif
string cacheKey = this.CreateCacheKey(inputs);
CachedResult cacheItem = cache[cacheKey] as CachedResult;
CachingUserState cachingUserState = new CachingUserState
{
CacheItem = cacheItem,
CacheKey = cacheKey,
OriginalUserCallback = callback,
OriginalUserState = state
};
IAsyncResult originalAsyncResult;
if (cacheItem != null)
{
InvokerDelegate invoker = cacheItem.GetValue;
object[] dummy;
originalAsyncResult = invoker.BeginInvoke(inputs, out dummy, this.InvokerCallback, cachingUserState);
}
else
{
originalAsyncResult = this.originalInvoker.InvokeBegin(instance, inputs, this.InvokerCallback, cachingUserState);
}
return(new CachingAsyncResult(originalAsyncResult, cachingUserState));
}
public CachingAsyncResult(IAsyncResult originalResult, CachingUserState cachingUserState)
{
this.originalResult = originalResult;
this.cachingUserState = cachingUserState;
}
public CachingAsyncResult(IAsyncResult asyncResult, CachingUserState cachingUserState)
{
this.asyncResult = asyncResult;
this.cachingUserState = cachingUserState;
}
public CachingAsyncResult(IAsyncResult originalResult, CachingUserState cachingUserState)
{
this.originalResult = originalResult;
this.cachingUserState = cachingUserState;
}
private void InvokerCallback(IAsyncResult asyncResult)
{
CachingUserState cachingUserState = asyncResult.AsyncState as CachingUserState;
cachingUserState.OriginalUserCallback(new CachingAsyncResult(asyncResult, cachingUserState));
}
