public CommandInfo(
IServerCommandDescription <TFormat> description,
Dictionary <Type, Type> allowedCommands)
{
this.Description = description;
if (allowedCommands.TryGetValue(description.CommandType, out Target))
{
this.IsReadOnly = typeof(IReadOnlyServerCommand).IsAssignableFrom(Target);
}
}
private static ExecuteResult <TOutput> Execute <TInput, TOutput>(IProcessingEngine engine, IServerCommandDescription <TInput> command)
{
var result = engine.Execute <TInput, TOutput>(new[] { command });
var subresult = result.ExecutedCommandResults != null?result.ExecutedCommandResults.FirstOrDefault() : null;
ThreadContext.Response.StatusCode = subresult != null && subresult.Result != null
? subresult.Result.Status
: result.Status;
if (result.Status == HttpStatusCode.ServiceUnavailable)
{
HttpRuntime.UnloadAppDomain();
}
ThreadContext.Response.Headers.Add("X-Duration", result.Duration.ToString());
if ((int)result.Status >= 300)
{
return new ExecuteResult <TOutput> {
Error = Utility.ReturnError(result.Message, result.Status)
}
}
;
var first = result.ExecutedCommandResults.FirstOrDefault();
if (first == null)
{
return new ExecuteResult <TOutput> {
Error = Utility.ReturnError("Missing result", HttpStatusCode.InternalServerError)
}
}
;
if ((int)first.Result.Status >= 300)
{
return new ExecuteResult <TOutput> {
Error = Utility.ReturnError(first.Result.Message, first.Result.Status)
}
}
;
return(new ExecuteResult <TOutput> {
Result = first.Result.Data
});
}
public static Stream ExecuteCommand <TFormat>(
IProcessingEngine engine,
IWireSerialization serialization,
IServerCommandDescription <TFormat> command,
string accept)
{
if (accept == "application/json-experimental")
{
var instance = Execute <TFormat, object>(engine, command);
if (instance.Error != null)
{
return(instance.Error);
}
if (instance.Result == null)
{
return(null);
}
var cms = ChunkedMemoryStream.Create();
var ct = serialization.Serialize(instance.Result, accept, cms);
ThreadContext.Response.ContentType = ct;
cms.Position = 0;
return(cms);
}
if (accept.Contains("application/json"))
{
var json = Execute <TFormat, StreamReader>(engine, command);
if (json.Error != null)
{
return(json.Error);
}
ThreadContext.Response.ContentType = "application/json";
if (json.Result == null)
{
return(null);
}
return(json.Result.BaseStream);
}
if (accept.Contains("application/octet-stream"))
{
var native = Execute <TFormat, object>(engine, command);
if (native.Error != null)
{
return(native.Error);
}
ThreadContext.Response.ContentType = "application/octet-stream";
if (native.Result == null)
{
return(null);
}
if (native.Result is Stream)
{
return(native.Result as Stream);
}
else if (native.Result is StreamReader)
{
return((native.Result as StreamReader).BaseStream);
}
//Warning LOH leak
else if (native.Result is StringBuilder)
{
return((native.Result as StringBuilder).ToStream());
}
//Warning LOH leak
else if (native.Result is byte[])
{
return(new MemoryStream(native.Result as byte[]));
}
//Warning LOH leak
else if (native.Result is string)
{
return(new StringBuilder(native.Result as string).ToStream());
}
//Warning LOH leak
else if (native.Result is char[])
{
var ch = native.Result as char[];
var sb = new StringBuilder(ch.Length);
sb.Append(ch);
return(sb.ToStream());
}
return(Utility.ReturnError(
"Unexpected command result. Can't convert "
+ native.Result.GetType().FullName + " to octet-stream. Use application/x-dotnet mime type for .NET binary serialization",
HttpStatusCode.BadRequest));
}
if (accept.Contains("application/base64"))
{
var native = Execute <TFormat, object>(engine, command);
if (native.Error != null)
{
return(native.Error);
}
ThreadContext.Response.ContentType = "application/base64";
if (native.Result == null)
{
return(null);
}
if (native.Result is Stream)
{
var stream = native.Result as Stream;
try { return(stream.ToBase64Stream()); }
finally { stream.Dispose(); }
}
else if (native.Result is StreamReader)
{
var sr = native.Result as StreamReader;
try { return(sr.BaseStream.ToBase64Stream()); }
finally { sr.Dispose(); }
}
//Warning LOH leak
else if (native.Result is StringBuilder)
{
var sb = native.Result as StringBuilder;
return(sb.ToBase64Stream());
}
//Warning LOH leak
else if (native.Result is byte[])
{
var bytes = native.Result as byte[];
using (var cms = ChunkedMemoryStream.Create())
{
cms.Write(bytes, 0, bytes.Length);
cms.Position = 0;
return(cms.ToBase64Stream());
}
}
//Warning LOH leak
else if (native.Result is string)
{
var sb = new StringBuilder(native.Result as string);
return(sb.ToBase64Stream());
}
//Warning LOH leak
else if (native.Result is char[])
{
var ch = native.Result as char[];
var sb = new StringBuilder(ch.Length);
sb.Append(ch);
return(sb.ToBase64Stream());
}
return(Utility.ReturnError("Unexpected command result. Cant convert to base64.", HttpStatusCode.BadRequest));
}
if (accept.Contains("application/x-protobuf"))
{
var proto = Execute <TFormat, Stream>(engine, command);
if (proto.Error != null)
{
return(proto.Error);
}
ThreadContext.Response.ContentType = "application/x-protobuf";
return(proto.Result);
}
if (accept.Contains("application/x-dotnet"))
{
var native = Execute <TFormat, object>(engine, command);
if (native.Error != null)
{
return(native.Error);
}
ThreadContext.Response.ContentType = "application/x-dotnet";
if (native.Result == null)
{
return(null);
}
var bf = new BinaryFormatter();
bf.AssemblyFormat = FormatterAssemblyStyle.Simple;
var cms = ChunkedMemoryStream.Create();
bf.Serialize(cms, native.Result);
cms.Position = 0;
return(cms);
}
var xml = Execute <TFormat, XElement>(engine, command);
if (xml.Error != null)
{
return(xml.Error);
}
ThreadContext.Response.ContentType = "application/xml";
if (xml.Result == null)
{
return(null);
}
var ms = ChunkedMemoryStream.Create();
xml.Result.Save(ms);
ms.Position = 0;
return(ms);
}
