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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
namespace Ice
{
/// <summary>
/// Base class that allows a server intercept incoming requests.
/// The application must derive a concrete class from DispatchInterceptor
/// that implements the DispatchInterceptor.dispatch operation. An instance of this derived
/// class can be registered with an object adapter like any other servant.
/// A dispatch interceptor is useful particularly to automatically retry requests
/// that have failed due to a recoverable error condition.
/// </summary>
public abstract class DispatchInterceptor : ObjectImpl
{
/// <summary>
/// Called by the Ice run time to dispatch an incoming request. The implementation
/// of <code>dispatch</code> must dispatch the request to the actual servant.
/// </summary>
/// <param name="request">The details of the incoming request.</param>
/// <returns>The task if dispatched asynchronously, null otherwise.</returns>
public abstract System.Threading.Tasks.Task<OutputStream>
dispatch(Request request);
public override System.Threading.Tasks.Task<OutputStream>
iceDispatch(IceInternal.Incoming inc, Current current)
{
try
{
return dispatch(inc);
}
catch(Exception)
{
//
// If the input parameters weren't read, make sure we skip them here. It's needed to read the
// encoding version used by the client to eventually marshal the user exception. It's also needed
// if we dispatch a batch oneway request to read the next batch request.
//
#pragma warning disable CS8073 // The result of the expression is always 'false'
if (current.encoding == null || (current.encoding.major == 0 && current.encoding.minor == 0))
#pragma warning restore CS8073 // The result of the expression is always 'false'
{
inc.skipReadParams();
}
throw;
}
}
}
}
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