/**
* When data is available on the socket, this method is called to run the command or throw an
* error if it can't.
*
* @throws SocketServerException
*/
private void handleClientData() throws SocketServerException {
try {
input.setLength(0); // clear
String res;
int a;
// (char) -1 is not equal to -1.
// ready is checked to ensure the read call doesn't block.
while ((a = in.read()) != -1 && in.ready()) {
input.append((char) a);
}
String inputString = input.toString();
Logger.debug("Got data from client: " + inputString);
try {
AndroidCommand cmd = getCommand(inputString);
Logger.debug("Got command of type " + cmd.commandType().toString());
res = runCommand(cmd);
Logger.debug("Returning result: " + res);
} catch (final CommandTypeException e) {
res = new AndroidCommandResult(WDStatus.UNKNOWN_ERROR, e.getMessage()).toString();
} catch (final JSONException e) {
res =
new AndroidCommandResult(WDStatus.UNKNOWN_ERROR, "Error running and parsing command")
.toString();
}
out.write(res);
out.flush();
} catch (final IOException e) {
throw new SocketServerException(
"Error processing data to/from socket (" + e.toString() + ")");
}
}
/**
* When {@link #handleClientData()} has valid data, this method delegates the command.
*
* @param cmd AndroidCommand
* @return Result
*/
private String runCommand(final AndroidCommand cmd) {
AndroidCommandResult res;
if (cmd.commandType() == AndroidCommandType.SHUTDOWN) {
keepListening = false;
res = new AndroidCommandResult(WDStatus.SUCCESS, "OK, shutting down");
} else if (cmd.commandType() == AndroidCommandType.ACTION) {
try {
res = executor.execute(cmd);
} catch (
final Exception
e) { // Here we catch all possible exceptions and return a JSON Wire Protocol
// UnknownError
// This prevents exceptions from halting the bootstrap app
res = new AndroidCommandResult(WDStatus.UNKNOWN_ERROR, e.getMessage());
}
} else {
// this code should never be executed, here for future-proofing
res =
new AndroidCommandResult(
WDStatus.UNKNOWN_ERROR, "Unknown command type, could not execute!");
}
return res.toString();
}