public int getNextByte() {
int byteToReturn = -1;
try {
byteToReturn = fileArray[fileIndex];
if (byteToReturn != 0) {
byteToReturn = byteToReturn & 0xff;
}
fileIndex++;
} catch (Exception e) {
System.out.println("Problem with getNextByte()");
e.printStackTrace();
fileIndex = 0;
}
return byteToReturn;
}
// runs the thread. this is the thread's loop
public void run() {
// do this as long as the thread is running
while (running) {
try {
// read bytes in from the serial port, and get a dataArray back:
/*
New in 1.4: checks to see if the port has been initialized.
If not, assumes it's to read from a file and tries to do so.
*/
if (port != null) {
dataArray = getPacket();
} else {
if (bytesAvailable() > 0) {
dataArray = getPacket(fileArray);
} else {
running = false;
}
}
if (dataArray != null) {
dataFrame = new XBeeDataFrame(dataArray);
switch (dataFrame.apiId) {
case ZNET_IOPACKET:
// process a ZNet IO packet
dataFrame.parseZNetFrame();
break;
case SERIES1_RX16PACKET:
dataFrame.parseXBeeRX16Frame();
// process a series 1 packet
break;
case SERIES1_IOPACKET:
dataFrame.parseXBeeIOFrame();
// process a series 1 packet
break;
}
}
// when we have a dataArray, set available = true:
available = true;
// not being used at the moment, since XBeeEvent is not getting triggered:
// if we have a valid data frame, generate an event:
if (xBeeMethod != null && dataArray != null) {
// generate an XBeeEvent:
try {
xBeeMethod.invoke(parent, new Object[] {this});
} catch (Exception e) {
System.out.println("Problem with XBeeEvent()");
e.printStackTrace();
xBeeMethod = null;
}
}
// gives the main sketch back the processor
try {
sleep(sleepRate); // Should we sleep?
} catch (Exception e) {
// Nothing for now. We'll get here if interrupt() is called
}
} catch (Exception e) {
System.out.println("Exception in XBeeReader.run():");
e.printStackTrace();
}
}
running = false;
fileEmpty = true;
}
