/** @param t */
public static synchronized void remove(Trigger t) {
int preSize = TriggerPersistence.size();
try {
t.unregister();
list.remove(t);
int postSize = TriggerPersistence.size();
if (!(postSize == (preSize - 1))) {
LOG.severe("Error while while removing trigger '" + t.getName() + "'");
}
} catch (Exception e) {
LOG.severe("Error while while unregistering the trigger '" + t.getName() + "'");
}
}
protected Object unmarshalFromInputStream(
Unmarshaller unmarshaller, InputStream is, Annotation[] anns, MediaType mt)
throws JAXBException {
// Try to create the read before unmarshalling the stream
XMLStreamReader xmlReader = null;
try {
if (is == null) {
Reader reader = getStreamHandlerFromCurrentMessage(Reader.class);
if (reader == null) {
LOG.severe("No InputStream, Reader, or XMLStreamReader is available");
throw ExceptionUtils.toInternalServerErrorException(null, null);
}
xmlReader = StaxUtils.createXMLStreamReader(reader);
} else {
xmlReader = StaxUtils.createXMLStreamReader(is);
}
configureReaderRestrictions(xmlReader);
return unmarshaller.unmarshal(xmlReader);
} finally {
try {
StaxUtils.close(xmlReader);
} catch (XMLStreamException e) {
// Ignore
}
}
}
@Override
public String getNetworkEndpoint() {
try {
VdeNetworkEndpoint localEndpoint =
new VdeNetworkEndpoint(
NetworkUtils.getHostAddress().getHostAddress(),
this.tempDir.toPath().resolve("sockets").toString(),
null);
return localEndpoint.value();
} catch (JAXBException e) {
LOG.severe("Could not marshal network endpoint information.");
e.printStackTrace();
// TODO throw BWFLAException
return null;
} catch (Exception e) {
LOG.severe("Could not determine public IP address.");
e.printStackTrace();
return null;
}
}
protected void marshalToOutputStream(
Marshaller ms, Object obj, OutputStream os, Annotation[] anns, MediaType mt)
throws Exception {
if (os == null) {
Writer writer = getStreamHandlerFromCurrentMessage(Writer.class);
if (writer == null) {
LOG.severe("No OutputStream, Writer, or XMLStreamWriter is available");
throw ExceptionUtils.toInternalServerErrorException(null, null);
}
ms.marshal(obj, writer);
writer.flush();
} else {
ms.marshal(obj, os);
}
}
private static boolean registerModule(
Path pythonModuleRoot, String pythonModuleName, final String pythonClassName) {
String pythonModuleRelPath = pythonModuleName.replace('.', '/');
Path pythonModuleFile = pythonModuleRoot.resolve(pythonModuleRelPath + ".py");
if (!Files.exists(pythonModuleFile)) {
LOG.severe(String.format("Missing Python module '%s'", pythonModuleFile.toUri()));
return false;
}
Path pythonInfoXmlFile = pythonModuleRoot.resolve(pythonModuleRelPath + "-info.xml");
if (!Files.exists(pythonInfoXmlFile)) {
LOG.warning(
String.format(
"Missing operator metadata file '%s'. Using defaults.", pythonInfoXmlFile.toUri()));
}
DefaultOperatorDescriptor operatorDescriptor =
createOperatorDescriptor(pythonInfoXmlFile, pythonModuleName);
File pythonModuleRootFile = FileUtils.toFile(pythonModuleRoot);
PyOperatorSpi operatorSpi =
new PyOperatorSpi(operatorDescriptor) {
@Override
public Operator createOperator() throws OperatorException {
PyOperator pyOperator = (PyOperator) super.createOperator();
pyOperator.setParameterDefaultValues();
pyOperator.setPythonModulePath(pythonModuleRootFile.getPath());
pyOperator.setPythonModuleName(pythonModuleName);
pyOperator.setPythonClassName(pythonClassName);
return pyOperator;
}
};
String operatorName =
operatorDescriptor.getAlias() != null
? operatorDescriptor.getAlias()
: operatorDescriptor.getName();
GPF.getDefaultInstance().getOperatorSpiRegistry().addOperatorSpi(operatorName, operatorSpi);
LOG.info(
String.format(
"Python operator '%s' registered (Python module: '%s', class: '%s', root: '%s')",
operatorName, pythonModuleName, pythonClassName, pythonModuleRootFile));
return true;
}
@Override
public void destroy() {
runner.stop();
runner.cleanup();
// remove temporary dir
if (tempDir != null && tempDir.exists()) {
try {
FileUtils.deleteDirectory(tempDir);
LOG.info("Temporary directory removed: " + tempDir.getAbsolutePath());
tempDir = null;
} catch (IOException e) {
LOG.severe(e.getMessage());
}
}
}
/** @param t */
public static synchronized void addAndRegister(Trigger t) {
int preSize = TriggerPersistence.size();
if (!list.contains(t)) {
list.add(t);
t.register();
int postSize = TriggerPersistence.size();
if (!(postSize == (preSize + 1))) {
LOG.severe("Error while while adding and registering trigger '" + t.getName() + "'");
}
} else {
// this trigger is already in the list
int old = list.indexOf(t);
list.get(old).unregister();
list.set(old, t);
t.register();
}
}
/** @param folder */
public static void saveTriggers(File folder) {
if (list.isEmpty()) {
LOG.warning(
"There are no triggers to persist, "
+ folder.getAbsolutePath()
+ " will not be altered.");
return;
}
if (!folder.isDirectory()) {
LOG.warning(folder.getAbsoluteFile() + " is not a valid trigger folder. Skipped");
return;
}
XStream xstream = FreedomXStream.getXstream();
deleteTriggerFiles(folder);
try {
LOG.config("Saving triggers to file in " + folder.getAbsolutePath());
for (Trigger trigger : list) {
if (trigger.isToPersist()) {
String uuid = trigger.getUUID();
if ((uuid == null) || uuid.isEmpty()) {
trigger.setUUID(UUID.randomUUID().toString());
}
String fileName = trigger.getUUID() + ".xtrg";
FileWriter fstream = new FileWriter(folder + "/" + fileName);
BufferedWriter out = new BufferedWriter(fstream);
out.write(xstream.toXML(trigger)); // persist only the data not the logic
// Close the output stream
out.close();
fstream.close();
}
}
} catch (Exception e) {
LOG.info(e.getLocalizedMessage());
LOG.severe(Freedomotic.getStackTraceInfo(e));
}
}
private static DefaultOperatorDescriptor createOperatorDescriptor(
Path pythonInfoXmlFile, String pythonModuleName) {
DefaultOperatorDescriptor operatorDescriptor;
if (Files.exists(pythonInfoXmlFile)) {
try {
try (BufferedReader reader = Files.newBufferedReader(pythonInfoXmlFile)) {
operatorDescriptor =
DefaultOperatorDescriptor.fromXml(
reader,
pythonInfoXmlFile.toUri().toString(),
PyOperatorSpi.class.getClassLoader());
}
} catch (IOException e) {
LOG.severe(String.format("Failed to read from '%s'", pythonInfoXmlFile));
operatorDescriptor = null;
}
} else {
operatorDescriptor = new DefaultOperatorDescriptor(pythonModuleName, PyOperator.class);
}
return operatorDescriptor;
}
/** @param folder */
public static synchronized void loadTriggers(File folder) {
XStream xstream = FreedomXStream.getXstream();
// This filter only returns object files
FileFilter objectFileFileter =
new FileFilter() {
public boolean accept(File file) {
if (file.isFile() && file.getName().endsWith(".xtrg")) {
return true;
} else {
return false;
}
}
};
File[] files = folder.listFiles(objectFileFileter);
try {
StringBuilder summary = new StringBuilder();
// print an header for the index.txt file
summary.append("#Filename \t\t #TriggerName \t\t\t #ListenedChannel").append("\n");
if (files != null) {
for (File file : files) {
Trigger trigger = null;
try {
// validate the object against a predefined DTD
String xml =
DOMValidateDTD.validate(
file, Info.getApplicationPath() + "/config/validator/trigger.dtd");
trigger = (Trigger) xstream.fromXML(xml);
} catch (Exception e) {
LOG.log(
Level.SEVERE,
"Trigger file {0} is not well formatted: {1}",
new Object[] {file.getPath(), e.getLocalizedMessage()});
continue;
}
// addAndRegister trigger to the list if it is not a duplicate
if (!list.contains(trigger)) {
if (trigger.isHardwareLevel()) {
trigger.setPersistence(false); // it has not to me stored in root/data folder
addAndRegister(trigger); // in the list and start listening
} else {
if (folder.getAbsolutePath().startsWith(Info.getPluginsPath())) {
trigger.setPersistence(false);
} else {
trigger.setPersistence(true); // not hardware trigger and not plugin related
}
list.add(
trigger); // only in the list not registred. I will be registred only if used in
// mapping
}
} else {
LOG.warning("Trigger '" + trigger.getName() + "' is already in the list");
}
summary
.append(trigger.getUUID())
.append("\t\t")
.append(trigger.getName())
.append("\t\t\t")
.append(trigger.getChannel())
.append("\n");
}
// writing a summary .txt file with the list of commands in this folder
FileWriter fstream = new FileWriter(folder + "/index.txt");
BufferedWriter indexfile = new BufferedWriter(fstream);
indexfile.write(summary.toString());
// Close the output stream
indexfile.close();
} else {
LOG.config("No triggers to load from this folder " + folder.toString());
}
} catch (Exception e) {
LOG.severe("Exception while loading this trigger.\n" + Freedomotic.getStackTraceInfo(e));
}
}
/**
* Append the range [off, off+len) from the provided sample data to the line.
*
* @param samples sample data
* @param off sample data offset
* @param len sample data length
*/
private void appendFrames(final byte[] samples, int off, int len) {
assert off % bytesPerFrame == 0;
assert len % bytesPerFrame == 0;
/* Make sure that [off, off+len) does not exceed sample's bounds */
off = Math.min(off, (samples != null) ? samples.length : 0);
len = Math.min(len, (samples != null) ? samples.length - off : 0);
if (len <= 0) {
return;
}
/* Convert samples if necessary */
final byte[] samplesConverted = Arrays.copyOfRange(samples, off, off + len);
if (convertUnsignedToSigned) {
/* The line expects signed PCM samples, so we must
* convert the unsigned PCM samples to signed.
* Note that this only affects the high bytes!
*/
for (int i = 0; i < samplesConverted.length; i += 2) {
samplesConverted[i] = (byte) ((samplesConverted[i] & 0xff) - 0x80);
}
}
/* Write samples to line */
// final int bytesWritten = m_line.write(samplesConverted, 0, samplesConverted.length);
final int bytesWritten = audioTrack.write(samplesConverted, 0, samplesConverted.length);
if (bytesWritten == AudioTrack.ERROR_INVALID_OPERATION) {
LOG.severe("Audio Track not initialized properly");
throw new RuntimeException(
"Audio Track not initialized properly: AudioTrack status: ERROR_INVALID_OPERATION");
} else if (bytesWritten == AudioTrack.ERROR_BAD_VALUE) {
LOG.severe("Wrong parameters sent to Audio Track!");
throw new RuntimeException(
"Wrong parameters sent to Audio Track! AudioTrack status: ERROR_BAD_VALUE");
} else if (bytesWritten != len) {
LOG.warning(
"Audio output line accepted only "
+ bytesWritten
+ " bytes of sample data while trying to write "
+ samples.length
+ " bytes");
} else {
LOG.info(bytesWritten + " bytes written to the audio output line");
}
/* Update state */
synchronized (AudioOutputQueue.this) {
framesWrittenToLine += (bytesWritten / bytesPerFrame);
for (int b = 0; b < bytesPerFrame; ++b) {
lineLastFrame[b] = samples[off + len - (bytesPerFrame - b)];
}
if (LOG.isLoggable(Level.FINE)) {
LOG.finest(
"Audio output line end is now at "
+ getNextLineTime()
+ " after writing "
+ len / bytesPerFrame
+ " frames");
}
}
}
/** Enqueuer thread main method */
@Override
public void run() {
try {
/* Mute line initially to prevent clicks */
setVolume(Float.NEGATIVE_INFINITY);
/* Start the line */
// m_line.start();
// start the audio track
audioTrack.play();
LOG.info("Audio Track started !!!");
boolean lineMuted = true;
boolean didWarnGap = false;
while (!closing) {
if (!frameQueue.isEmpty()) {
/* Queue filled */
/* If the gap between the next packet and the end of line is
* negligible (less than one packet), we write it to the line.
* Otherwise, we fill the line buffer with silence and hope for
* further packets to appear in the queue
*/
final long entryFrameTime = frameQueue.firstKey();
final long entryLineTime = convertFrameToLineTime(entryFrameTime);
final long gapFrames = entryLineTime - getNextLineTime();
// LOG.info("** gapFrames: " + gapFrames + " packetSizeFrames: " + packetSizeFrames);
if (gapFrames < -packetSizeFrames) {
/* Too late for playback */
LOG.warning(
"Audio data was scheduled for playback "
+ (-gapFrames)
+ " frames ago, skipping");
frameQueue.remove(entryFrameTime);
continue;
} else if (gapFrames < packetSizeFrames) {
/* Negligible gap between packet and line end. Prepare packet for playback */
didWarnGap = false;
/* Unmute line in case it was muted previously */
if (lineMuted) {
LOG.info("Audio data available, un-muting line");
lineMuted = false;
applyVolume();
} else if (getVolume() != getRequestedVolume()) {
applyVolume();
}
/* Get sample data and do sanity checks */
final byte[] nextPlaybackSamples = frameQueue.remove(entryFrameTime);
int nextPlaybackSamplesLength = nextPlaybackSamples.length;
if (nextPlaybackSamplesLength % bytesPerFrame != 0) {
LOG.severe(
"Audio data contains non-integral number of frames, ignore last "
+ (nextPlaybackSamplesLength % bytesPerFrame)
+ " bytes");
nextPlaybackSamplesLength -= nextPlaybackSamplesLength % bytesPerFrame;
}
/* Append packet to line */
LOG.finest(
"Audio data containing "
+ nextPlaybackSamplesLength / bytesPerFrame
+ " frames for playback time "
+ entryFrameTime
+ " found in queue, appending to the output line");
appendFrames(nextPlaybackSamples, 0, nextPlaybackSamplesLength, entryLineTime);
continue;
} else {
/* Gap between packet and line end. Warn */
if (!didWarnGap) {
didWarnGap = true;
LOG.warning(
"Audio data missing for frame time "
+ getNextLineTime()
+ " (currently "
+ gapFrames
+ " frames), writing "
+ packetSizeFrames
+ " frames of silence");
}
}
} else {
/* Queue empty */
if (!lineMuted) {
lineMuted = true;
setVolume(Float.NEGATIVE_INFINITY);
LOG.fine(
"Audio data ended at frame time "
+ getNextLineTime()
+ ", writing "
+ packetSizeFrames
+ " frames of silence and muted line");
}
}
appendSilence(packetSizeFrames);
}
// TODO: I don't think we need the appendSilence anymore when using Android API, but will
// evaluate that later during tests
/* Before we exit, we fill the line's buffer with silence. This should prevent
* noise from being output while the line is being stopped
*/
// appendSilence(m_line.available() / m_bytesPerFrame);
} catch (final Throwable e) {
LOG.log(Level.SEVERE, "Audio output thread died unexpectedly", e);
} finally {
setVolume(Float.NEGATIVE_INFINITY);
audioTrack.stop();
audioTrack.release();
// m_line.stop();
// m_line.close();
}
}