public async Task <object> Handler(string name, object[] args, Context context, NextInvokeHandler next)
{
await Acquire().ConfigureAwait(false);
var result = next(name, args, context);
#if !NET35_CF
await result.ContinueWith((task) => Release(), TaskScheduler.Current).ConfigureAwait(false);
#else
await result.ContinueWith((task) => Release()).ConfigureAwait(false);
#endif
return(await result.ConfigureAwait(false));
}
public static async Task <object> Broadcast(string name, object[] args, Context context, NextInvokeHandler next)
{
var clientContext = context as ClientContext;
var uris = clientContext.Client.Uris;
var n = uris.Count;
var results = new Task <object> [n];
for (int i = 0; i < n; ++i)
{
var forkingContext = clientContext.Clone() as ClientContext;
forkingContext.Uri = uris[i];
results[i] = next(name, args, forkingContext);
}
#if NET40
return(await TaskEx.WhenAll(results).ConfigureAwait(false));
#else
return(await Task.WhenAll(results).ConfigureAwait(false));
#endif
}
protected async Task <object> Handler(string name, object[] args, Context context, NextInvokeHandler next)
{
var serviceContext = context as ServiceContext;
var from = "";
if (serviceContext.RequestHeaders.TryGetValue("id", out var id))
{
from = id.ToString();
}
switch (name)
{
case ">":
case ">?":
args[3] = from;
break;
case ">*":
args[2] = from;
break;
}
return(await next(name, args, new BrokerContext(new Producer(this, from), serviceContext)).ConfigureAwait(false));
}
public static async Task <object> Forking(string name, object[] args, Context context, NextInvokeHandler next)
{
var deferred = new TaskCompletionSource <object>();
var clientContext = context as ClientContext;
var uris = clientContext.Client.Uris;
var n = uris.Count;
var count = n;
for (int i = 0; i < n; ++i)
{
var forkingContext = clientContext.Clone() as ClientContext;
forkingContext.Uri = uris[i];
Task result = next(name, args, forkingContext).ContinueWith((task) => {
if (task.Exception != null)
{
if (Interlocked.Decrement(ref count) == 0)
{
deferred.TrySetException(task.Exception);
}
}
else
{
deferred.TrySetResult(task.Result);
}
}, TaskScheduler.Current);
}
return(await deferred.Task.ConfigureAwait(false));
}
private static async Task <object> TimeoutHandler(string fullname, object[] args, Context context, NextInvokeHandler next)
{
var resultTask = next(fullname, args, context);
var serviceContext = context as ServiceContext;
var timeout = serviceContext.Method.Timeout > TimeSpan.Zero ? serviceContext.Method.Timeout : serviceContext.Service.Timeout;
if (timeout > TimeSpan.Zero)
{
using (CancellationTokenSource source = new CancellationTokenSource()) {
#if NET40
var timer = TaskEx.Delay(timeout, source.Token);
var task = await TaskEx.WhenAny(resultTask, timer).ConfigureAwait(false);
#else
var timer = Task.Delay(timeout, source.Token);
var task = await Task.WhenAny(resultTask, timer).ConfigureAwait(false);
#endif
source.Cancel();
if (task == timer)
{
throw new TimeoutException();
}
}
}
return(await resultTask.ConfigureAwait(false));
}
public static async Task <object> InvokeHandler(this Log log, string name, object[] args, Context context, NextInvokeHandler next)
{
bool enabled = context.Contains("Log") ? (context as dynamic).Log : log.Enabled;
if (!enabled)
{
return(await next(name, args, context).ConfigureAwait(false));
}
string a = "";
try {
a = (args.Length > 0) && typeof(Context).IsAssignableFrom(args.Last().GetType()) ? Stringify(new List <object>(args.Take(args.Length - 1))) : Stringify(args);
}
catch (Exception e) {
Trace.TraceError(e.StackTrace);
}
try {
var result = await next(name, args, context).ConfigureAwait(false);
try {
Trace.TraceInformation(name + "(" + a.Substring(1, a.Length - 2) + ") = " + Stringify(result));
}
catch (Exception e) {
Trace.TraceError(e.StackTrace);
}
return(result);
}
catch (Exception e) {
Trace.TraceError(e.StackTrace);
throw;
}
}
protected async Task <object> Handler(string name, object[] args, Context context, NextInvokeHandler next)
{
var from = "";
if (((context as ServiceContext).RequestHeaders).TryGetValue("id", out var id))
{
from = id.ToString();
}
switch (name)
{
case ">":
case ">?":
args[3] = from;
break;
case ">*":
args[2] = from;
break;
}
IProducer producer = new Producer(this, from);
context["producer"] = producer;
return(await next(name, args, context).ConfigureAwait(false));
}
public async Task <object> InvokeHandler(string name, object[] args, Context context, NextInvokeHandler next)
{
var clientContext = new ClientContext {
Timeout = Timeout
};
clientContext.RequestHeaders = context.RequestHeaders;
var result = await client.InvokeAsync <object>(name, args, clientContext).ConfigureAwait(false);
context.ResponseHeaders = clientContext.ResponseHeaders;
return(result);
}
public static Task <object> InvokeHandler(string name, object[] args, Context context, NextInvokeHandler next)
{
return(LogExtensions.InvokeHandler(instance, name, args, context, next));
}
public async Task <object> InvokeHandler(string name, object[] args, Context context, NextInvokeHandler next)
{
if (MockService == null)
{
return(await next(name, args, context).ConfigureAwait(false));
}
try {
return(await next(name, args, context).ConfigureAwait(false));
}
catch (BreakerException) {
return(await MockService.Invoke(name, args, context).ConfigureAwait(false));
}
}
public async Task <object> Handler(string name, object[] args, Context context, NextInvokeHandler next)
{
var resultTask = next(name, args, context);
var serviceContext = context as ServiceContext;
var timeout = Timeout;
if (serviceContext.Method.Options.ContainsKey("timeout"))
{
timeout = (TimeSpan)(serviceContext.Method.Options["timeout"]);
}
if (timeout > TimeSpan.Zero)
{
using CancellationTokenSource source = new CancellationTokenSource();
#if NET40
var timer = TaskEx.Delay(timeout, source.Token);
var task = await TaskEx.WhenAny(resultTask, timer).ConfigureAwait(false);
#else
var timer = Task.Delay(timeout, source.Token);
var task = await Task.WhenAny(resultTask, timer).ConfigureAwait(false);
#endif
source.Cancel();
if (task == timer)
{
throw new TimeoutException();
}
}
return(await resultTask.ConfigureAwait(false));
}
public async Task <object> InvokeHandler(string name, object[] args, Context context, NextInvokeHandler next)
{
await Acquire().ConfigureAwait(false);
return(await next(name, args, context).ConfigureAwait(false));
}
public static async Task <object> InvokeHandler(this Log log, string name, object[] args, Context context, NextInvokeHandler next)
{
bool enabled = context.Contains("log") ? (bool)context["log"] : log.Enabled;
if (!enabled)
{
return(await next(name, args, context).ConfigureAwait(false));
}
string a = "";
try {
a = Stringify(args);
}
catch (Exception e) {
#if !NET35_CF
Trace.TraceError(e.StackTrace);
#else
Trace.WriteLine(e.StackTrace);
#endif
}
try {
var result = await next(name, args, context).ConfigureAwait(false);
try {
#if !NET35_CF
Trace.TraceInformation(name + "(" + a.Substring(1, a.Length - 2) + ") = " + Stringify(result));
#else
Trace.WriteLine(name + "(" + a.Substring(1, a.Length - 2) + ") = " + Stringify(result));
#endif
}
catch (Exception e) {
#if !NET35_CF
Trace.TraceError(e.StackTrace);
#else
Trace.WriteLine(e.StackTrace);
#endif
}
return(result);
}
catch (Exception e) {
#if !NET35_CF
Trace.TraceError(e.StackTrace);
#else
Trace.WriteLine(e.StackTrace);
#endif
throw;
}
}
public static async Task <object> Handler(string name, object[] args, Context context, NextInvokeHandler next)
{
var result = next(name, args, context);
if (context.Contains("Oneway"))
{
return(null);
}
return(await result.ConfigureAwait(false));
}
