/** @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;
}
/**
* Get the metadata channel tree for the given <code>path</code>. This will populate the channel
* map with channel objects derived from the metadata. This will recursively make requests for
* child servers and plugins up to the maximum request depth of {@value #MAX_REQUEST_DEPTH}.
*
* @param sink sink the sink connection to the RBNB server
* @param path the path for the desired metadata
* @param channels the map to populate with channel objects
* @param depth the depth of the request
* @return the metadata channel tree for the given path
* @throws SAPIException if a server error occurs
* @see #MAX_REQUEST_DEPTH
*/
private ChannelTree getChannelTree(
Sink sink, String path, Map<String, Channel> channels, int depth) throws SAPIException {
depth++;
ChannelTree ctree = ChannelTree.EMPTY_TREE;
ChannelMap markerChannelMap = new ChannelMap();
ChannelMap cmap = new ChannelMap();
if (path == null) {
path = "";
cmap.Add("...");
} else {
cmap.Add(path + "/...");
}
sink.RequestRegistration(cmap);
cmap = sink.Fetch(FETCH_TIMEOUT, cmap);
if (cmap.GetIfFetchTimedOut()) {
log.error("Failed to get metadata. Fetch timed out.");
return ctree;
}
ctree = ChannelTree.createFromChannelMap(cmap);
// store user metadata in channel objects
String[] channelList = cmap.GetChannelList();
for (int i = 0; i < channelList.length; i++) {
int channelIndex = cmap.GetIndex(channelList[i]);
if (channelIndex != -1) {
ChannelTree.Node node = ctree.findNode(channelList[i]);
String userMetadata = cmap.GetUserInfo(channelIndex);
Channel channel = new RBNBChannel(node, userMetadata);
channels.put(channelList[i], channel);
// look for marker channels
String mimeType = channel.getMetadata("mime");
if (mimeType != null && mimeType.compareToIgnoreCase(EventMarker.MIME_TYPE) == 0) {
markerChannelMap.Add(node.getFullName());
}
}
}
Iterator<?> it = ctree.iterator();
while (it.hasNext()) {
ChannelTree.Node node = (ChannelTree.Node) it.next();
NodeTypeEnum type = node.getType();
// look for child servers or plugins and get their channels
if ((type == ChannelTree.SERVER || type == ChannelTree.PLUGIN)
&& !path.startsWith(node.getFullName())
&& depth < MAX_REQUEST_DEPTH) {
ChannelTree childChannelTree = getChannelTree(sink, node.getFullName(), channels, depth);
ctree = childChannelTree.merge(ctree);
}
}
if (markerChannelMap.NumberOfChannels() > 0) {
double markersDuration = System.currentTimeMillis() / 1000d;
// request from start of marker channels to now
sink.Request(markerChannelMap, 0, markersDuration, "absolute");
markerChannelMap = sink.Fetch(FETCH_TIMEOUT, markerChannelMap);
if (!markerChannelMap.GetIfFetchTimedOut()) {
// notify marker listeners
fireMarkersUpdated(markerChannelMap);
} else {
log.error("Failed to get event markers. Fetched timed out.");
}
}
return ctree;
}
