/**
* Send input steam.
*
* @param inputStream the input stream
* @throws IOException Signals that an I/O exception has occurred.
*/
private void sendInputSteam(InputStream inputStream) throws IOException {
byte[] buffer = new byte[FOUR_KB];
int read;
while ((read = inputStream.read(buffer)) > 0) {
if (read == FOUR_KB) socket.sendMessage(RequestBody.create(WebSocket.BINARY, buffer));
else
socket.sendMessage(
RequestBody.create(WebSocket.BINARY, Arrays.copyOfRange(buffer, 0, read)));
}
inputStream.close();
}
/*
* (non-Javadoc)
*
* @see okhttp3.ws.WebSocketListener#onOpen(okhttp3.ws.WebSocket, okhttp3.Response)
*/
@Override
public void onOpen(WebSocket socket, Response response) {
callback.onConnected();
this.socket = socket;
try {
socket.sendMessage(
RequestBody.create(WebSocket.TEXT, buildStartMessage(options).toString()));
} catch (IOException e) {
callback.onError(e);
}
}
/*
* (non-Javadoc)
*
* @see okhttp3.ws.WebSocketListener#onMessage(okhttp3.ResponseBody)
*/
@Override
public void onMessage(ResponseBody response) throws IOException {
String message = response.string();
if (message == null) return;
try {
JsonObject json = new JsonParser().parse(message).getAsJsonObject();
if (json.has(ERROR)) {
callback.onError(new RuntimeException(json.get(ERROR).getAsString()));
} else if (json.has(RESULTS)) {
callback.onTranscription(GSON.fromJson(message, SpeechResults.class));
} else if (json.has(STATE)) {
if (!audioSent) {
sendInputSteam(stream);
socket.sendMessage(RequestBody.create(WebSocket.TEXT, buildStopMessage().toString()));
audioSent = true;
} else {
socket.close(CLOSE_NORMAL, "Transcription completed");
}
}
} catch (JsonParseException e) {
throw new RuntimeException("Error parsing the incoming message: " + response.string());
}
}