public override HoundServerJSON do_text_request(string query,
ConversationStateJSON conversation_state,
RequestInfoJSON request_info)
{
string url =
text_request_url_base + "?query=" + Uri.EscapeUriString(query);
Fetch fetcher = new Fetch(url);
set_up_fetch(fetcher, conversation_state, request_info);
try
{
HoundServerJSON.HoldingGenerator generator =
new HoundServerJSON.HoldingGenerator(
"the result from the Hound server");
ResultHandler handler = new ResultHandler(generator);
fetcher.get(handler);
return(generator.value);
}
catch (Exception e1)
{
Console.Error.Write("Error trying to fetch from `{0}': {1}\n", url,
e1.Message);
return(null);
}
}
public ICustomActivityResult Execute()
{
HoundCloudRequester requester = new HoundCloudRequester(client_id, client_key, user_id);
RequestInfoJSON.TypeClientVersion client_version = new RequestInfoJSON.TypeClientVersion();
client_version.key = 0;
client_version.choice0 = "1.0";
RequestInfoJSON request_info = new RequestInfoJSON();
request_info.setUnitPreference(RequestInfoJSON.TypeUnitPreference.UnitPreference_US);
request_info.setRequestID(Guid.NewGuid().ToString());
request_info.setSessionID("");
request_info.setClientVersion(client_version);
ConversationStateJSON conversation_state = null;
HoundServerJSON hound_result;
hound_result = requester.do_text_request(request_text, conversation_state, request_info);
CommandResultJSON commandResult = hound_result.elementOfAllResults(0);
String resultStr = commandResult.getWrittenResponseLong();
return(this.GenerateActivityResult(resultStr));
}
public override VoiceRequest start_voice_request(
ConversationStateJSON conversation_state,
RequestInfoJSON request_info, PartialHandler partial_handler)
{
Fetch fetcher = new Fetch(voice_request_url_base);
set_up_fetch(fetcher, conversation_state, request_info);
return(new LocalVoiceRequest(fetcher, partial_handler));
}
public static ConversationStateJSON from_file(TextReader fp, string file_name, bool ignore_extras)
{
ConversationStateJSON result = new ConversationStateJSON();
StringWriter stream = new StringWriter();
JSONStreamWriter writer = new JSONStreamWriter(stream, JSONWriter.whitespace_style.WHITESPACE_NONE);
JSONParse.parse_json_value(fp, file_name, writer);
result.contents = stream.ToString();
return(result);
}
public static ConversationStateJSON from_text(string text, bool ignore_extras)
{
ConversationStateJSON result = new ConversationStateJSON();
StringWriter stream = new StringWriter();
JSONStreamWriter writer = new JSONStreamWriter(stream, JSONWriter.whitespace_style.WHITESPACE_NONE);
JSONParse.parse_json_value(text, "Text for ConversationStateJSON", writer);
result.contents = stream.ToString();
return(result);
}
public static ConversationStateJSON from_json(JSONValue json_value, bool ignore_extras, bool allow_incomplete, bool allow_unpolished)
{
ConversationStateJSON result = new ConversationStateJSON();
StringWriter stream = new StringWriter();
JSONStreamWriter writer = new JSONStreamWriter(stream, JSONWriter.whitespace_style.WHITESPACE_NONE);
json_value.write(writer);
result.contents = stream.ToString();
return(result);
}
public abstract VoiceRequest start_voice_request(
ConversationStateJSON conversation_state,
RequestInfoJSON request_info,
PartialHandler partial_handler = null);
public abstract HoundServerJSON do_text_request(string query,
ConversationStateJSON conversation_state,
RequestInfoJSON request_info);
public static int sample_hound_driver(HoundRequester requester)
{
string session_id = Guid.NewGuid().ToString();
ConversationStateJSON conversation_state = null;
while (true)
{
string line = Console.ReadLine();
if (line == null)
{
return(0);
}
RequestInfoJSON request_info = new RequestInfoJSON();
request_info.setUnitPreference(
RequestInfoJSON.TypeUnitPreference.UnitPreference_US);
request_info.setRequestID(Guid.NewGuid().ToString());
request_info.setSessionID(session_id);
RequestInfoJSON.TypeClientVersion client_version =
new RequestInfoJSON.TypeClientVersion();
client_version.key = 0;
client_version.choice0 = "1.0";
request_info.setClientVersion(client_version);
HoundServerJSON hound_result;
if ((line.StartsWith("-audio ")) ||
(line.StartsWith("-transcript-audio ")) ||
(line.StartsWith("-slow-transcript-audio ")))
{
bool go_slowly = line.StartsWith("-slow-transcript-audio ");
bool show_transcript =
(line.StartsWith("-transcript-audio ") ||
line.StartsWith("-slow-transcript-audio "));
LocalPartialHandler partial_handler =
new LocalPartialHandler(show_transcript);
HoundRequester.VoiceRequest request =
requester.start_voice_request(conversation_state,
request_info, partial_handler);
int file_name_position = 0;
while (line[file_name_position] != ' ')
{
++file_name_position;
}
++file_name_position;
String file_name = line.Substring(file_name_position);
BinaryReader audio_stream;
try
{
audio_stream = new BinaryReader(
File.Open(file_name, FileMode.Open));
}
catch (Exception e1)
{
Console.Error.Write(
"Error trying to open audio file `{0}': {1}\n",
file_name, e1.Message);
return(1);
}
while (true)
{
byte[] buffer = new byte[2052];
int byte_count = audio_stream.Read(buffer, 0, 2052);
if (byte_count > 0)
{
request.add_audio(byte_count, buffer);
}
if (byte_count < 2052)
{
break;
}
if (go_slowly)
{
Thread.Sleep(500);
}
}
audio_stream.Close();
hound_result = request.finish();
}
else
{
hound_result = requester.do_text_request(line,
conversation_state, request_info);
}
if (hound_result == null)
{
return(1);
}
if (hound_result.hasAllResults())
{
if (hound_result.countOfAllResults() == 0)
{
Console.Write("No match.\n");
conversation_state = null;
}
else
{
CommandResultJSON command =
hound_result.elementOfAllResults(0);
Console.Write("Result");
if (hound_result.hasLocalOrRemote())
{
Console.Write(" [{0}]",
((hound_result.getLocalOrRemote() ==
HoundServerJSON.TypeLocalOrRemote.
LocalOrRemote_Local) ? "Local" :
"Remote"));
}
Console.Write(": {0}\n", command.getWrittenResponseLong());
if (command.hasConversationState())
{
conversation_state = command.getConversationState();
}
else
{
conversation_state = null;
}
}
}
else if (hound_result.hasErrorMessage())
{
Console.Write("Error from server: {0}\n",
hound_result.getErrorMessage());
conversation_state = null;
}
else
{
Console.Write("No result or error from server.\n");
conversation_state = null;
}
}
}
protected Generator(bool ignore_extras) : base(JSONWriter.whitespace_style.WHITESPACE_NONE)
{
result = new ConversationStateJSON();
}
protected override void handle_result(ConversationStateJSON result)
{
top.value.Add(result);
}
protected override void handle_result(ConversationStateJSON result)
{
//@@@ Debug.Assert(!have_value);
have_value = true;
value = result;
}
public override void reset()
{
result = new ConversationStateJSON();
}
protected abstract void handle_result(ConversationStateJSON new_result);
private void set_up_fetch(Fetch fetcher,
ConversationStateJSON conversation_state,
RequestInfoJSON request_info)
{
fetcher.setUserAgent("HoundCloudRequesterCSharp/1.0");
if (use_proxy)
{
fetcher.setProxyServer(proxy_server, proxy_port);
int param_count = proxy_parameters.Count;
for (int param_num = 0; param_num < param_count; ++param_num)
{
fetcher.setProxyParameter(proxy_parameters[param_num].key,
proxy_parameters[param_num].value);
}
}
long time_stamp =
(long)((DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0)).
TotalSeconds);
request_info.setTimeStamp(time_stamp);
if (conversation_state != null)
{
request_info.setConversationState(conversation_state);
}
string request_id = request_info.getRequestID();
request_info.setUserID(user_id);
request_info.setClientID(client_id);
request_info.setPartialTranscriptsDesired(true);
request_info.setObjectByteCountPrefix(false);
request_info.setResultVersionAccepted(1.1);
request_info.setSDK("C Sharp");
{
JSONObjectValue sdk_info = new JSONObjectValue();
sdk_info.setField("SDKVariant",
new JSONStringValue(BuildInfo.SDKVariant));
sdk_info.setField("SDKPrivateDomains",
new JSONStringValue(BuildInfo.SDKPrivateDomains));
sdk_info.setField("BuildUser",
new JSONStringValue(BuildInfo.BuildUser));
sdk_info.setField("BuildDate",
new JSONStringValue(BuildInfo.BuildDate));
sdk_info.setField("BuildMachine",
new JSONStringValue(BuildInfo.BuildMachine));
sdk_info.setField("BuildSVNRevision",
new JSONStringValue(BuildInfo.BuildSVNRevision));
sdk_info.setField("BuildSVNBranch",
new JSONStringValue(BuildInfo.BuildSVNBranch));
sdk_info.setField("BuildNumber",
new JSONStringValue(BuildInfo.BuildNumber));
sdk_info.setField("BuildKind",
new JSONStringValue(BuildInfo.BuildKind));
sdk_info.setField("BuildVariant",
new JSONStringValue(BuildInfo.BuildVariant));
request_info.setSDKInfo(sdk_info);
}
StringWriter request_info_stream = new StringWriter();
JSONStreamWriter request_info_writer = new JSONStreamWriter(
request_info_stream,
JSONWriter.whitespace_style.WHITESPACE_NONE);
request_info.write_as_json(request_info_writer);
fetcher.setParameter("Hound-Request-Info",
request_info_stream.ToString());
string auth_id = user_id + ";" + request_id;
fetcher.setParameter("Hound-Request-Authentication", auth_id);
byte[] key_bits = Base64.base64url_decode(client_key);
HMACSHA256 sha_256_hmac = new HMACSHA256(key_bits);
byte[] hash_result = sha_256_hmac.ComputeHash(
Encoding.UTF8.GetBytes(
String.Format("{0}{1}", auth_id, time_stamp)));
fetcher.setParameter("Hound-Client-Authentication",
client_id + ";" + String.Format("{0}", time_stamp) + ";" +
new String(Base64.base64url_encode(hash_result)));
if (request_info.hasInputLanguageEnglishName())
{
fetcher.setParameter("Hound-Input-Language-English-Name",
request_info.getInputLanguageEnglishName());
}
if (request_info.hasInputLanguageNativeName())
{
fetcher.setParameter("Hound-Input-Language-Native-Name",
request_info.getInputLanguageNativeName());
}
if (request_info.hasInputLanguageIETFTag())
{
fetcher.setParameter("Hound-Input-Language-IETF-Tag",
request_info.getInputLanguageIETFTag());
}
fetcher.setTimeoutSeconds(30);
}
