public String send(String command, boolean expectAnswer, long timeout)
throws FTDWrapperException {
ft_device.write(command.getBytes());
// Logger.log("%s sent", command);
// ft_device.write("W".getBytes(StandardCharsets.US_ASCII));
if (!expectAnswer) return null;
if (timeout > 0) {
/* Try to wait for timeout. Continue silently if unsuccessful. */
try {
Thread.sleep(timeout);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
// TODO: Change to StringBuilder
String out = new String("");
while (true) {
int expectedDataSize = ft_device.getQueueStatus();
// Logger.log("Expected = %d", expectedDataSize);
if (expectedDataSize > 0) {
byte[] receivedData = new byte[expectedDataSize];
// Logger.log("Expected = %d", expectedDataSize);
int readSize = ft_device.read(receivedData);
if (readSize < expectedDataSize)
throw new FTDWrapperException(
"Could not read all data. Expected "
+ Integer.toString(expectedDataSize)
+ " bytes, read "
+ Integer.toString(readSize)
+ " bytes.");
out += new String(receivedData);
} else break;
/*throw new IOException("Could not read any data. Waited for " + Long.getCSVString(timeout) +
" but received no data. Check the connection or increase readWait.");
*/
}
// Logger.log("recv = %s", out);
return out;
}
