private void sendFrame(ShieldFrame frame) {
if (frame == null) return;
byte[] frameBytes = frame.getAllFrameAsBytes();
sendData(frameBytes);
Log.d("Device " + this.name + ": Frame sent, values: " + frame + ".");
}
@Override
public void run() {
while (!this.isInterrupted()) {
try {
while ((readByteFromSerialBuffer()) != ShieldFrame.START_OF_FRAME) ;
if (ShieldFrameTimeout != null) ShieldFrameTimeout.stopTimer();
ShieldFrameTimeout = new TimeOut(1000);
int tempArduinoLibVersion = readByteFromSerialBuffer();
byte shieldId = readByteFromSerialBuffer();
byte instanceId = readByteFromSerialBuffer();
byte functionId = readByteFromSerialBuffer();
ShieldFrame frame = new ShieldFrame(shieldId, functionId);
int argumentsNumber = readByteFromSerialBuffer() & 0xFF;
int argumentsNumberVerification = (255 - (readByteFromSerialBuffer() & 0xFF));
if (argumentsNumber != argumentsNumberVerification) {
Log.d(
"Device "
+ OneSheeldDevice.this.name
+ ": Frame is incorrect, canceling what we've read so far.");
if (ShieldFrameTimeout != null) ShieldFrameTimeout.stopTimer();
serialBuffer.clear();
continue;
}
boolean continueRequested = false;
for (int i = 0; i < argumentsNumber; i++) {
int length = readByteFromSerialBuffer() & 0xFF;
int lengthVerification = (255 - (readByteFromSerialBuffer() & 0xFF));
if (length != lengthVerification || length <= 0) {
Log.d(
"Device "
+ OneSheeldDevice.this.name
+ ": Frame is incorrect, canceling what we've read so far.");
if (ShieldFrameTimeout != null) ShieldFrameTimeout.stopTimer();
serialBuffer.clear();
continueRequested = true;
break;
}
byte[] data = new byte[length];
for (int j = 0; j < length; j++) {
data[j] = readByteFromSerialBuffer();
}
frame.addArgument(data);
}
if (continueRequested) continue;
if ((readByteFromSerialBuffer()) != ShieldFrame.END_OF_FRAME) {
Log.d(
"Device "
+ OneSheeldDevice.this.name
+ ": Frame is incorrect, canceling what we've read so far.");
if (ShieldFrameTimeout != null) ShieldFrameTimeout.stopTimer();
serialBuffer.clear();
continue;
}
if (ShieldFrameTimeout != null) ShieldFrameTimeout.stopTimer();
if (arduinoLibraryVersion != tempArduinoLibVersion) {
arduinoLibraryVersion = tempArduinoLibVersion;
isLibraryVersionQueried = true;
Log.d(
"Device "
+ OneSheeldDevice.this.name
+ ": Device replied with library version: "
+ arduinoLibraryVersion
+ ".");
onLibraryVersionQueryResponse(arduinoLibraryVersion);
}
if (shieldId == CONFIGURATION_SHIELD_ID) {
if (functionId == LIBRARY_VERSION_RESPONSE) {
} else if (functionId == IS_HARDWARE_CONNECTED_QUERY) {
notifyHardwareOfConnection();
} else if (functionId == IS_CALLBACK_ENTERED) {
callbackEntered();
} else if (functionId == IS_CALLBACK_EXITED) {
callbackExited();
}
} else {
Log.d(
"Device " + OneSheeldDevice.this.name + ": Frame received, values: " + frame + ".");
for (OneSheeldDataCallback oneSheeldDataCallback : dataCallbacks) {
oneSheeldDataCallback.onShieldFrameReceive(frame);
if (OneSheeldSdk.getKnownShields().contains(shieldId)
&& OneSheeldSdk.getKnownShields()
.getKnownShield(shieldId)
.getKnownFunctions()
.contains(KnownFunction.getFunctionWithId(functionId)))
oneSheeldDataCallback.onKnownShieldFrameReceive(
OneSheeldSdk.getKnownShields().getKnownShield(shieldId), frame);
}
}
} catch (InterruptedException e) {
return;
} catch (ShieldFrameNotComplete e) {
Log.d(
"Device "
+ OneSheeldDevice.this.name
+ ": Frame wasn't completed in 1 second, canceling what we've read so far.");
if (ShieldFrameTimeout != null) ShieldFrameTimeout.stopTimer();
ShieldFrameTimeout = null;
continue;
}
}
}
