public BRCache(
String serverAddress,
boolean useArchive,
int numCacheFrames,
int numArchiveFrames,
boolean newArchive,
int debugI) {
debug = debugI;
// create source connection
try {
String mode = "none";
if (useArchive) {
if (newArchive) mode = "create";
else mode = "append";
}
source = new Source(numCacheFrames, mode, numArchiveFrames);
source.OpenRBNBConnection(serverAddress, cacheName);
cacheName = source.GetClientName();
if (debug > 2) System.err.println("BRCache source: " + source);
} catch (Exception e) {
System.err.println("Exception creating cache: " + e.getMessage());
e.printStackTrace();
RBNBProcess.exit(0);
}
if (debug > 0) System.err.println("Started BRCache...");
}
public String getName() {
try {
return source.GetServerName() + "/" + source.GetClientName() + "/";
} catch (Exception e) {
System.err.println("BRCache.getName exception: " + e.getMessage());
e.printStackTrace();
return null;
}
}
/** Connect from the RBNB * */
private void disconnect() {
if ((cacheSize != 0 || archiveSize != 0) && source != null) {
source.Detach(); // close and keep cache and archive
} else if (source != null) { // they are both zero; close and scrap
source.CloseRBNBConnection();
} else {
}
source = null;
connected = false;
}
/** Connect to the RBNB * */
public void connect() {
if (connected) return;
try {
// Create a source and connect:
if (archiveSize > 0) source = new Source(cacheSize, "append", archiveSize);
else source = new Source(cacheSize, "append", 0);
System.out.println(getServer());
// source.OpenRBNBConnection(getServer(),rbnbSourceName);
source.OpenRBNBConnection("128.180.53.5:3333", rbnbSourceName);
connected = true;
System.out.println(
"Connecting to SCRAMNetSource with..."
+ "\n RBNB Server = "
+ getServer()
+ "\n RBNB Cache Size = "
+ cacheSize
+ "\n RBNB Archive Size = "
+ archiveSize
+ "\n RBNB Source name = "
+ rbnbSourceName
+ "\n Number of channels = "
+ rbnbChannelNames.length
+ "\n Delay between frames = "
+ ((float) delay / 1000F)
+ "s"
+ "\n RBNB Frame Size = "
+ (rbnbChannelNames.length * 4 * 1000 / delay)
+ " bytes");
} catch (SAPIException se) {
se.printStackTrace();
}
}
public void register(ChannelMap cm) {
try {
source.Register(cm);
} catch (Exception e) {
System.err.println("BRCache exception registering channels.");
e.printStackTrace();
}
}
public void close() {
// close connection, save archive
try {
source.CloseRBNBConnection();
} catch (Exception e) {
System.err.println("Exception closing cache: " + e.getMessage());
e.printStackTrace();
}
}
// EMF 5/30/03: never clear cache, just don't write if older than
// what's there...
public void put(ChannelMap cm) {
try {
if (debug > 3) System.err.println("BRCache.put: cm " + cm);
if (debug > 3)
for (int i = 0; i < cm.NumberOfChannels(); i++) {
System.err.println(i + ": " + cm.GetTimeStart(i) + " " + cm.GetData(i));
}
// check must be on per channel basis
ChannelMap cmCache = new ChannelMap();
Double[] lastTimeD = sink.getEndTimes(cm);
for (int i = 0; i < cm.NumberOfChannels(); i++) {
double thisTime = cm.GetTimeStart(i);
if (lastTimeD[i] == null || lastTimeD[i].doubleValue() < thisTime) {
int idx = cmCache.Add(cm.GetName(i));
cmCache.PutTimeRef(cm, i);
cmCache.PutDataRef(idx, cm, i);
}
}
source.Flush(cmCache);
/*
//if time goes backwards, reset ring buffer
double thisTime=Double.MAX_VALUE;
for (int i=0;i<cm.NumberOfChannels();i++) {
double time=cm.GetTimeStart(i)+cm.GetTimeDuration(i);
if (time<thisTime) thisTime=time;
}
if (thisTime<lastTime) { //reset ring buffer and clear endTimes
if (debug>3) System.err.println("BRCache.put: reset ring buffer");
source.SetRingBuffer(1000,"none",0);
endTimes.clear();
}
if (thisTime<Double.MAX_VALUE) lastTime=thisTime;
//put end times into cache
for (int i=0;i<cm.NumberOfChannels();i++) {
endTimes.put(cm.GetName(i),new Double(cm.GetTimeStart(i)+cm.GetTimeDuration(i)));
}
//put data into server
source.Flush(cm);
*/
} catch (Exception e) {
System.err.println("BRCache.put exception: " + e.getMessage());
e.printStackTrace();
}
}
/** @param args the command line arguments */
@SuppressWarnings("static-access")
public static void main(String[] args) {
String hostname = "localhost:3333";
String portName = "/dev/tty.KeySerial1";
String srcName = "ADXL-RBNB Accelerometer";
String[] chanNames = {"X", "Y"};
int[] chanIdx = {0, 1};
double[] vals = {0, 0};
String unitsMetadata = "units=G,scale=1,offset=0";
Source source;
ChannelMap cmap;
int cacheSize = 10240; // ! @todo parse from command line
int archiveSize = cacheSize * 10; // ! @todo parse from command line
int idx;
int chanCount = 2;
ADXL chip;
// Setup interrupt handler
DoHook();
System.out.println("Opening serial port");
chip = new ADXL();
if (chip.initialize(portName) == 0) {
portConnected = true;
System.out.println("Serial port initialized OK");
} else {
System.out.println("Error opening serial port");
return;
}
// RBNB connection setup
try {
System.out.println("Opening connection to RBNB on " + hostname);
// Create both a source and a sink, connect both:
source = new Source(cacheSize, "append", archiveSize);
source.OpenRBNBConnection(hostname, srcName);
DTconnected = true;
System.out.println("OK.");
// Setup channel map - names of channels, units
cmap = new ChannelMap();
for (idx = 0; idx < chanCount; idx++) {
chanIdx[idx] = cmap.Add(chanNames[idx]);
// Hardwired units (G) for all three sources
cmap.PutUserInfo(chanIdx[idx], unitsMetadata);
// Not sure if we still need the MIME type or not
cmap.PutMime(chanIdx[idx], "application/octet-stream");
}
source.Register(cmap);
source.Flush(cmap);
} // We don't distinguish between errors in setup phase, just bail out
catch (SAPIException se) {
System.out.println("Error on Turbine - not connected");
DTconnected = false;
return;
}
// ********************************************************************
// Main data loop: read, scale, write.
try {
System.out.println("Turbine connected, running. Press control-c to end");
// Loop - runs until control-c or error.
do {
for (idx = 0; idx < chanCount; idx++) chanIdx[idx] = cmap.Add(chanNames[idx]);
// Read the data from the accelerometer
vals = chip.chipRead();
// Timestamp all channels with client-side time
cmap.PutTimeAuto("timeofday");
for (idx = 0; idx < chanCount; idx++) {
double valBuf[] = {vals[idx]};
cmap.PutDataAsFloat64(cmap.GetIndex(chanNames[idx]), valBuf);
}
source.Flush(cmap);
cmap.Clear();
Thread.sleep(20);
} while (!ctrlC);
} catch (SAPIException mse) {
System.out.println("Error saving data!");
mse.printStackTrace();
} catch (InterruptedException ie) {
System.out.println("Interrupted, exiting.");
}
// Shutdown and exit
if (portConnected) {
chip.closePort(chip.serialPort);
}
if (DTconnected) {
System.out.println("Closing RBNB connection");
// Tell RBNB to keep the data once we close
source.Detach();
source.CloseRBNBConnection();
}
System.out.println("Done, exiting.");
return;
}
/** Main data push from SCRAMNet */
private boolean execute() {
if (!connected) return false;
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
// Connect to SCRAMNet
ScramNetIO scr = new ScramNetIO();
scr.initScramnet();
// Create a new Channel map
ChannelMap cmap = new ChannelMap();
// Gather all the channels
int channelId[] = new int[rbnbChannelNames.length];
for (int i = 0; i < rbnbChannelNames.length; i++) {
try {
// add the channels
channelId[i] = cmap.Add(rbnbChannelNames[i]);
} catch (SAPIException e) {
System.err.println(
"Failed to add SCRAMNet channel to channel map; name = " + rbnbChannelNames[i]);
disconnect();
return false;
}
try {
cmap.PutUserInfo(channelId[i], "Channel_Name=" + rbnbChannelNames[i]);
} catch (SAPIException e) {
System.err.println("Failed to register SCRAMnet channel metadata.");
}
}
try {
source.Register(cmap);
} catch (SAPIException e) {
System.err.println("Failed to register SCRAMnet channel metadata.");
}
while (true) {
// Read SCRAMNet channel depending on if its DAQ or other
for (int i = 0; i < rbnbChannelNames.length; i++) {
float scrdata[] = new float[1];
if (xml.getxPCReadisDAQ(i).equals("true")) {
scrdata[0] =
(float)
scr.readDAQ(
xml.getxPCReadLocation(i),
xml.getxPCReadGain(i),
xml.getxPCReadVoffset(i),
xml.getxPCReadVslope(i),
xml.getxPCReadEUoffset(i),
xml.getxPCReadEUslope(i));
} else {
scrdata[0] =
scr.readFloat(Integer.parseInt(xml.getxPCReadLocation(i)))
* (float) xml.getxPCReadGain(i);
}
// Push data to turbine
try {
cmap.PutTimeAuto("timeofday");
cmap.PutDataAsFloat32(channelId[i], scrdata);
} catch (SAPIException e) {
System.err.println("Failed to put SCRAMNet data into channel map.");
scr.unmapScramnet();
return false;
}
}
// Flush output
try {
source.Flush(cmap, true);
} catch (SAPIException e) {
e.printStackTrace();
System.err.println("Failed to flush channel output data to server.");
scr.unmapScramnet();
return false;
}
try {
// Delay between
Thread.sleep(delay);
} catch (InterruptedException e) {
}
}
}
