public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state)
{
string cacheKey = this.CreateCacheKey(inputs);
CachedOperationResult cachedItem = CacheServiceHelper.Current.Get <CachedOperationResult>(cacheKey);
CachingUserState cachingUserState = new CachingUserState
{
CacheItem = cachedItem,
CacheKey = cacheKey,
Callback = callback,
State = state
};
IAsyncResult originalAsyncResult;
if (cachedItem != null)
{
InvokerDelegate invoker = cachedItem.GetValue;
object[] notUsed;
originalAsyncResult = invoker.BeginInvoke(inputs, out notUsed, this.InvokerCallback, cachingUserState);
}
else
{
originalAsyncResult = _invoker.InvokeBegin(instance, inputs, this.InvokerCallback, cachingUserState);
}
return(new CachingAsyncResult(originalAsyncResult, 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));
}
private static T AdaptToHost <T>(AddInToken pipeline, IContract addInContract)
{
if (addInContract == null)
{
throw new ArgumentNullException("addInContract");
}
System.Diagnostics.Contracts.Contract.EndContractBlock();
ContractComponent contract = pipeline._contract;
HostAdapter hostAdapter = pipeline._hostAdapter;
Type hostAdapterType;
Type contractType;
LoadContractAndHostAdapter(contract, hostAdapter, out contractType, out hostAdapterType);
int?temporaryToken = null;
try
{
temporaryToken = addInContract.AcquireLifetimeToken();
// This assembly resolve event exists to:
// 1) To upgrade the contract assembly from the LoadFrom context to
// the default loader context
ResolverHelper resolver = new ResolverHelper(pipeline);
ResolveEventHandler assemblyResolver = new ResolveEventHandler(resolver.ResolveAssemblyForHostAdapter);
AppDomain.CurrentDomain.AssemblyResolve += assemblyResolver;
// Create the Host Adapter, which is a subclass of the Host Add-In View.
// Pass the contract implementation to this constructor, using a
// transparent proxy to the real type. Detect common errors here.
InvokerDelegate myInvokerDelegate = CreateConsInvoker(hostAdapterType, contractType);
T hav;
try
{
hav = (T)myInvokerDelegate(addInContract);
}
catch (ArgumentException e)
{
CheckForLoaderContextProblems(contract, pipeline._addinAdapter, e);
throw;
}
finally
{
AppDomain.CurrentDomain.AssemblyResolve -= assemblyResolver;
}
return(hav);
}
finally
{
if (temporaryToken != null && addInContract != null)
{
addInContract.RevokeLifetimeToken((int)temporaryToken);
}
}
}
public void BeginInvoke()
{
this.invoker = PrintTime;
invoker += Statistics;
while (true)
{
invoker();
this.calls++;
Thread.Sleep(this.T*1000);
}
}
internal static T ActivateHostAdapter <T>(PartialToken pipeline, IContract addIn)
{
if (pipeline == null)
{
throw new ArgumentNullException("pipeline");
}
if (addIn == null)
{
throw new ArgumentNullException("addIn");
}
System.Diagnostics.Contracts.Contract.EndContractBlock();
ContractComponent contract = pipeline._contract;
HostAdapter hostAdapter = pipeline._hostAdapter;
Type hostAdapterType;
Type contractType;
LoadContractAndHostAdapter(contract, hostAdapter, out contractType, out hostAdapterType);
// This assembly resolve event exists to:
// 1) To upgrade the contract assembly from the LoadFrom context to
// the default loader context
ResolverHelper resolver = new ResolverHelper(contract);
ResolveEventHandler assemblyResolver = new ResolveEventHandler(resolver.ResolveAssemblyForHostAdapter);
AppDomain.CurrentDomain.AssemblyResolve += assemblyResolver;
T hav;
InvokerDelegate myInvokerDelegate = CreateConsInvoker(hostAdapterType, contractType);
try
{
hav = (T)myInvokerDelegate(addIn);
}
catch (ArgumentException e)
{
CheckForLoaderContextProblems(contract, pipeline._addinAdapter, e);
throw;
}
finally
{
AppDomain.CurrentDomain.AssemblyResolve -= assemblyResolver;
}
return(hav);
}
public object InvokeEnd(object instance, out object[] outputs, IAsyncResult asyncResult)
{
CachingAsyncResult result = asyncResult as CachingAsyncResult;
CachingUserState state = result.CachingUserState;
if (state.CacheItem == null)
{
object data = _invoker.InvokeEnd(instance, out outputs, result.OriginalAsyncResult);
state.CacheItem = new CachedOperationResult {
Data = data, Outputs = outputs
};
CacheServiceHelper.Current.Add(state.CacheKey, state.CacheItem, TimeSpan.FromSeconds(_cacheDuration));
return(data);
}
else
{
InvokerDelegate invoker = ((AsyncResult)result.OriginalAsyncResult).AsyncDelegate as InvokerDelegate;
invoker.EndInvoke(out outputs, result.OriginalAsyncResult);
return(state.CacheItem.Data);
}
}
