public void run() {
if (watchService == null || watchKey == null) {
return;
}
if (DEBUG_LOG_TO_CONSOLE) {
System.out.println("" + Thread.currentThread().getId() + " Started run method");
}
try {
do {
WatchKey watchKey = watchService.take();
List<WatchEvent<?>> events = watchKey.pollEvents();
if (events != null && events.size() > 0) {
if (DEBUG_LOG_TO_CONSOLE) {
System.out.println("" + Thread.currentThread().getId() + " Received change event");
}
// fire listener
listener.onDirectoryChanged(directory);
}
} while (watchKey.reset());
} catch (Throwable e) {
// terminating
if (DEBUG_LOG_TO_CONSOLE) {
System.out.println("" + Thread.currentThread().getId() + " Exception: " + e.toString());
}
}
}
/** Process all events for keys queued to the watcher */
void processEvents() {
while (true) {
// wait for key to be signalled
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
return;
}
Path dir = keys.get(key);
if (dir == null) {
System.err.println("WatchKey not recognized!!");
continue;
}
List<WatchEvent<?>> events = key.pollEvents();
for (WatchEvent<?> event : events) {
Kind<?> kind = event.kind();
// TBD - provide example of how OVERFLOW event is handled
if (kind == OVERFLOW) {
continue;
}
// Context for directory entry event is the file name of entry
WatchEvent<Path> ev = cast(event);
Path name = ev.context();
Path child = dir.resolve(name);
// print out event
onEvent.accept(ev, child);
// if directory is created, and watching recursively, then
// register it and its sub-directories
if (recursive && (kind == ENTRY_CREATE)) {
try {
if (Files.isDirectory(child, NOFOLLOW_LINKS)) {
registerAll(child);
}
} catch (IOException x) {
// ignore to keep sample readbale
}
}
}
// reset key and remove from set if directory no longer accessible
boolean valid = key.reset();
if (!valid) {
keys.remove(key);
// all directories are inaccessible
if (keys.isEmpty()) {
break;
}
}
}
}
public void startTimer() throws IOException, InterruptedException {
Path faxFolder = Paths.get("./plugins");
WatchService watchService = FileSystems.getDefault().newWatchService();
faxFolder.register(watchService, StandardWatchEventKinds.ENTRY_CREATE);
boolean valid = true;
do {
WatchKey watchKey = watchService.take();
for (WatchEvent event : watchKey.pollEvents()) {
WatchEvent.Kind kind = event.kind();
if (StandardWatchEventKinds.ENTRY_CREATE.equals(event.kind())) {
String fileName = event.context().toString();
System.out.println("Trying to add " + fileName);
boolean success = this.server.addPlugin(fileName);
System.out.println(
success
? "Added " + fileName + "!"
: fileName + " was not loaded, JAR was misformed.");
}
if (StandardWatchEventKinds.ENTRY_DELETE.equals(event.kind())) {
String fileName = event.context().toString();
System.out.println("File Removed: " + fileName);
this.server.removePlugin(fileName);
}
}
valid = watchKey.reset();
} while (valid);
}
/**
* In order to implement a file watcher, we loop forever ensuring requesting to take the next
* item from the file watchers queue.
*/
@Override
public void run() {
try {
// get the first event before looping
WatchKey key = myWatcher.take();
while (key != null) {
// we have a polled event, now we traverse it and
// receive all the states from it
for (WatchEvent event : key.pollEvents()) {
System.out.printf(
"Received %s event for file: %s\n",
event.kind(), pathToWatch + "/" + event.context());
uploadToS3.upload(
"bulk-delivery",
event.context().toString(),
pathToWatch + "/" + event.context().toString());
}
key.reset();
key = myWatcher.take();
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("Stopping thread");
}
private void refresh() throws IOException {
while (true) {
WatchKey watchKey = watchService.poll();
if (watchKey == null) {
return;
}
Path parentDir = (Path) watchKey.watchable();
for (WatchEvent<?> watchEvent : watchKey.pollEvents()) {
WatchEvent.Kind<?> eventKind = watchEvent.kind();
if (eventKind == OVERFLOW) {
fullRefresh();
return;
}
Path child = parentDir.resolve((Path) watchEvent.context());
if (eventKind == ENTRY_CREATE) {
onNewPath(child);
} else if (eventKind == ENTRY_DELETE) {
onRemovedPath(child);
}
}
watchKey.reset();
}
}
public static void watchDirectoryPath(Path path) {
// Sanity check - Check if path is a folder
try {
Boolean isFolder = (Boolean) Files.getAttribute(path, "basic:isDirectory", NOFOLLOW_LINKS);
if (!isFolder) {
throw new IllegalArgumentException("Path: " + path + " is not a folder");
}
} catch (IOException ioe) {
// Folder does not exists
ioe.printStackTrace();
}
// System.out.println("Watching path: " + path);
// We obtain the file system of the Path
FileSystem fs = path.getFileSystem();
// We create the new WatchService using the new try() block
try (WatchService service = fs.newWatchService()) {
// We register the path to the service
// We watch for creation events
path.register(service, ENTRY_CREATE);
// Start the infinite polling loop
WatchKey key = null;
while (true) {
key = service.take();
// Dequeueing events
Kind<?> kind = null;
for (WatchEvent<?> watchEvent : key.pollEvents()) {
// Get the type of the event
kind = watchEvent.kind();
if (OVERFLOW == kind) {
continue; // loop
} else if (ENTRY_CREATE == kind) {
// A new Path was created
// Path newPath = ((WatchEvent<Path>)
// watchEvent).context();
// Output
// System.out.println("New path created: " + newPath);
}
}
if (!key.reset()) {
break; // loop
}
}
} catch (IOException ioe) {
ioe.printStackTrace();
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
public void run() {
log.debug("ReloadStrategy is starting watching folder: {}", folder);
// allow to run while starting Camel
while (isStarting() || isRunAllowed()) {
running = true;
WatchKey key;
try {
log.trace("ReloadStrategy is polling for file changes in directory: {}", folder);
// wait for a key to be available
key = watcher.poll(2, TimeUnit.SECONDS);
} catch (InterruptedException ex) {
break;
}
if (key != null) {
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent<Path> we = (WatchEvent<Path>) event;
Path path = we.context();
String name = folder.resolve(path).toAbsolutePath().toFile().getAbsolutePath();
log.trace("Modified/Created file: {}", name);
// must be an .xml file
if (name.toLowerCase(Locale.US).endsWith(".xml")) {
log.debug("Modified/Created XML file: {}", name);
try {
FileInputStream fis = new FileInputStream(name);
onReloadXml(getCamelContext(), name, fis);
IOHelper.close(fis);
} catch (Exception e) {
log.warn(
"Error reloading routes from file: "
+ name
+ " due "
+ e.getMessage()
+ ". This exception is ignored.",
e);
}
}
}
// the key must be reset after processed
boolean valid = key.reset();
if (!valid) {
break;
}
}
}
running = false;
log.info("ReloadStrategy is stopping watching folder: {}", folder);
}
private boolean processWatchKey(WatchKey watchKey) {
for (WatchEvent<?> event : watchKey.pollEvents()) {
if (StandardWatchEventKinds.OVERFLOW == event.kind()) continue;
try {
session.getBasicRemote().sendObject(((Path) event.context()).toFile());
} catch (Exception e) {
e.printStackTrace();
}
}
return watchKey.reset();
}
/**
* Process all events for keys queued to the watcher.
*
* <p>When the event is a ENTRY_CREATE or ENTRY_MODIFY, the folders will be added to the watcher,
* the classes will be loaded by SpringLoaded
*/
public void run() {
while (isStarted) {
// wait for key to be signalled
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
return;
}
Path dir = keys.get(key);
if (dir == null) {
continue;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind kind = event.kind();
// Context for directory entry event is the file name of entry
// noinspection unchecked
WatchEvent<Path> ev = (WatchEvent<Path>) event;
Path name = ev.context();
Path child = dir.resolve(name);
// if directory is created, and watching recursively, then
// register it and its sub-directories
if (Files.isDirectory(child, NOFOLLOW_LINKS)) {
watchDirectory(child);
// load the classes that have been copied
final File[] classes =
child.toFile().listFiles((FileFilter) new SuffixFileFilter(".class"));
for (File aFile : classes) {
final String parentFolder = aFile.getParent();
callFileWatcherListerners(parentFolder, aFile.toPath(), kind);
}
} else {
callFileWatcherListerners(dir.toString().replace(File.separator, "/"), child, kind);
}
}
// reset key and remove from set if directory no longer accessible
boolean valid = key.reset();
if (!valid) {
keys.remove(key);
// all directories are inaccessible
if (keys.isEmpty()) {
break;
}
}
}
}
public static void main(String[] args) {
try {
WatchService watcher = FileSystems.getDefault().newWatchService();
Path dir = Paths.get("D:\\take it");
dir.register(watcher, ENTRY_CREATE, ENTRY_MODIFY);
System.out.println("Watch Service registered for dir: " + dir.getFileName());
System.out.println("How many files are already there " + folder.getAbsolutePath());
listFilesForFolder(folder);
while (true) {
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException ex) {
return;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind<?> kind = event.kind();
@SuppressWarnings("unchecked")
WatchEvent<Path> ev = (WatchEvent<Path>) event;
Path fileName = ev.context();
// String p = folder.getAbsolutePath()+ "\\" +fileName;
if ((fileName.toString()).contains(".")) {
System.out.println("snadkf");
} else {
System.out.println(kind.name() + ": " + fileName);
}
// System.out.println("New file has been arrived: "+fileName);
}
/*if (kind == ENTRY_MODIFY && fileName.toString().equals("DirectoryWatchDemo.java"))
{
System.out.println("My source file has changed!!!");
}
}*/
boolean valid = key.reset();
if (!valid) {
break;
}
}
} catch (IOException ex) {
System.err.println(ex);
}
}
/** Process all events for the key queued to the watcher. */
void processEvents() {
for (; ; ) {
// wait for key to be signaled
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
return;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind kind = event.kind();
if (kind == OVERFLOW) {
continue;
}
// The filename is the context of the event.
WatchEvent<Path> ev = (WatchEvent<Path>) event;
Path filename = ev.context();
// Verify that the new file is a text file.
try {
Path child = dir.resolve(filename);
if (!Files.probeContentType(child).equals("text/plain")) {
System.err.format("New file '%s' is not a plain text file.%n", filename);
continue;
}
} catch (IOException x) {
System.err.println(x);
continue;
}
// Email the file to the specified email alias.
System.out.format("Emailing file %s%n", filename);
}
// Reset the key -- this step is critical if you want to receive
// further watch events. If the key is no longer valid, the directory
// is inaccessible so exit the loop.
boolean valid = key.reset();
if (!valid) {
break;
}
}
}
/** Обработчик всех событий помещенных в очередь */
void processEvents() {
for (; ; ) {
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
LOG.log(Level.SEVERE, x.getMessage());
return;
}
Path dir = keys.get(key);
if (dir == null) {
LOG.log(Level.SEVERE, "Входной каталог не найден!");
continue;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind kind = event.kind();
// TODO - подумать над обработчиком события OVERFLOW
if (kind == OVERFLOW) {
continue;
}
WatchEvent<Path> ev = cast(event);
Path name = ev.context();
Path child = dir.resolve(name);
// логируем событие
if (kind == ENTRY_CREATE) {
LOG.log(Level.FINEST, "{0}: {1}", new Object[] {event.kind().name(), child});
Runnable worker = new WorkerThread(child);
executor.execute(worker);
}
}
boolean valid = key.reset();
if (!valid) {
keys.remove(key);
if (keys.isEmpty()) {
break;
}
}
}
}
@Override
public void run() {
try {
WatchService service = FileSystems.getDefault().newWatchService();
Path path = Paths.get(Settings.AVAILABLE_USERS_PATH);
path.register(service, StandardWatchEventKinds.ENTRY_MODIFY);
while (true) {
// wait until a directory change is detected
WatchKey key = service.take();
// remove all pending directory change events
key.pollEvents();
// get an up-to-date list of the currently available users
Set<String> availableUsers = getAvailableUsers();
// has anyone just come online?
Set<String> logOns = new HashSet<String>(availableUsers);
logOns.removeAll(users);
// has anyone just gone offline?
Set<String> logOffs = new HashSet<String>(users);
logOffs.removeAll(availableUsers);
// update the list of available users
users = availableUsers;
// notify the delegate of the changes
delegate.change(logOns, logOffs);
boolean valid = key.reset();
if (!valid) {
break; // Exit if directory is deleted
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void initWatcher() throws IOException, InterruptedException {
WatchService watcher = path.getFileSystem().newWatchService();
path.register(
watcher,
StandardWatchEventKinds.ENTRY_CREATE,
StandardWatchEventKinds.ENTRY_MODIFY,
StandardWatchEventKinds.ENTRY_DELETE);
LOG.info("Now watching template folder: " + path.toFile().getAbsolutePath());
while (true) {
WatchKey key = watcher.take();
List<WatchEvent<?>> events = key.pollEvents();
if (!events.isEmpty()) {
updateTemplates();
}
key.reset();
}
}
/**
* @param args
* @throws IOException
* @throws InterruptedException
*/
public static void main(String[] args) throws IOException, InterruptedException {
final String dir = "C:\\work\\docs\\PHD_Work\\thesis\\";
File folder = new File(dir);
File[] listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
String file = listOfFiles[i].getName();
if (file.endsWith(".tex")) {
latexToHTML(dir + file);
}
}
}
// define a folder root
Path myDir = Paths.get(dir);
WatchService watcher = myDir.getFileSystem().newWatchService();
myDir.register(watcher, ENTRY_MODIFY);
do {
WatchKey watckKey = watcher.poll();
if (watckKey != null) {
List<WatchEvent<?>> events = watckKey.pollEvents();
for (WatchEvent event : events) {
String filename = event.context().toString();
if (filename.endsWith(".tex")) {
latexToHTML(dir + filename);
}
}
watckKey.reset();
}
Thread.sleep(500);
} while (true);
}
public static void watchDirectoryPath(Path path) {
if (path != null) {
System.out.println("Watching path: " + path);
FileSystem fs = path.getFileSystem();
try (WatchService service = fs.newWatchService()) {
path.register(service, ENTRY_CREATE);
WatchKey key;
while (true) {
key = service.take();
// Dequeueing events
Kind<?> kind;
for (WatchEvent<?> watchEvent : key.pollEvents()) {
// Get the type of the event
kind = watchEvent.kind();
if (OVERFLOW == kind) {
continue; // loop
} else if (ENTRY_CREATE == kind) {
// A new Path was created
Path newPath = ((WatchEvent<Path>) watchEvent).context();
// Output
System.out.println("New path created/modified: " + newPath);
checkPath(newPath.toString());
}
}
if (!key.reset()) {
break; // resets the key so it continues to look for new creation events.
}
}
} catch (IOException | InterruptedException ioe) {
System.out.println("The file watcher was interrupted.");
}
}
}
public static void watchService() {
try {
WatchService watcher = FileSystems.getDefault().newWatchService();
WatchKey watchKey =
Paths.get("/Users/caocao024/Desktop")
.register(watcher, StandardWatchEventKinds.ENTRY_MODIFY);
while (true) {
// watchKey = watcher.take();
for (WatchEvent<?> event : watcher.poll(10, TimeUnit.MILLISECONDS).pollEvents()) {
if (event.kind() == StandardWatchEventKinds.ENTRY_MODIFY) {
System.out.println("====" + event.context() + " | " + event.count());
}
}
watchKey.reset();
}
} catch (IOException | InterruptedException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
}
@Override
public void run() {
try {
for (; ; ) {
WatchKey key = null;
try {
key = watchService.take();
} catch (InterruptedException e) {
return;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind<?> kind = event.kind();
if (kind == OVERFLOW) {
continue;
}
// Context for directory entry event is the file name of
// entry
WatchEvent<Path> ev = cast(event);
Path name = ev.context();
// print out event
if (kind == ENTRY_CREATE || kind == ENTRY_MODIFY) {
try {
processConfigFile(
new File(getServiceConfigFolder() + File.separator + name.toString()));
} catch (IOException e) {
logger.warn("Could not process config file '{}': {}", name, e);
}
}
}
key.reset();
}
} catch (ClosedWatchServiceException ecx) {
logger.debug("Terminated thread {}", Thread.currentThread().getName());
return;
}
}
/** Creates a WatchService and registers the given directory */
private void setupWatch(String initialText) throws IOException {
this.watcher = FileSystems.getDefault().newWatchService();
this.dir = Files.createTempDirectory("jshelltemp");
this.tmpfile = Files.createTempFile(dir, null, ".edit");
Files.write(tmpfile, initialText.getBytes(Charset.forName("UTF-8")));
dir.register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
watchedThread =
new Thread(
() -> {
for (; ; ) {
WatchKey key;
try {
key = watcher.take();
} catch (ClosedWatchServiceException ex) {
// The watch service has been closed, we are done
break;
} catch (InterruptedException ex) {
// tolerate an interrupt
continue;
}
if (!key.pollEvents().isEmpty()) {
// Changes have occurred in temp edit directory,
// transfer the new sources to JShell (unless the editor is
// running directly in JShell's window -- don't make a mess)
if (!input.terminalEditorRunning()) {
saveFile();
}
}
boolean valid = key.reset();
if (!valid) {
// The watch service has been closed, we are done
break;
}
}
});
watchedThread.start();
}
/** 监听目录 */
@Test
public void testWatchFile() {
// 监听目录变化
try {
WatchService watcher = FileSystems.getDefault().newWatchService();
Path dir = FileSystems.getDefault().getPath(ParentPath);
WatchKey key = dir.register(watcher, StandardWatchEventKinds.ENTRY_MODIFY);
boolean shutdown = false;
while (!shutdown) {
System.out.println(1);
key = watcher.take();
for (WatchEvent<?> event : key.pollEvents()) {
if (event.kind() == StandardWatchEventKinds.ENTRY_MODIFY) {
System.out.println("Home dir changed!");
}
}
key.reset();
}
} catch (IOException | InterruptedException e) {
System.out.println(e.getMessage());
}
}
/** Check that deleting a registered directory causes the key to be cancelled and queued. */
static void testAutomaticCancel(Path dir) throws IOException {
System.out.println("-- Automatic Cancel --");
Path subdir = Files.createDirectory(dir.resolve("bar"));
try (WatchService watcher = FileSystems.getDefault().newWatchService()) {
System.out.format("register %s for events\n", subdir);
WatchKey myKey =
subdir.register(
watcher, new WatchEvent.Kind<?>[] {ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY});
System.out.format("delete: %s\n", subdir);
Files.delete(subdir);
takeExpectedKey(watcher, myKey);
System.out.println("reset key");
if (myKey.reset()) throw new RuntimeException("Key was not cancelled");
if (myKey.isValid()) throw new RuntimeException("Key is still valid");
System.out.println("OKAY");
}
}
private void watchLoop() throws IOException {
WatchService watcher = FileSystems.getDefault().newWatchService();
toWatch_.register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
while (running_) {
// wait for key to be signaled
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
return;
}
if (key != null) {
for (WatchEvent<?> event : key.pollEvents()) {
if (!running_) {
return;
}
System.out.println("Processing event...");
processEvent(event);
}
// Reset the key -- this step is critical if you want to
// receive further watch events. If the key is no longer valid,
// the directory is inaccessible so exit the loop.
boolean valid = key.reset();
if (!valid) {
break;
}
}
}
}
public void watchForNewEdges() {
// File file = new File("C:\\Users\\rvanduijnhoven\\Documents\\jsfoutput\\jsfweek14.bin");
// Get the file system
// FileSystem fs = path.getFileSystem();
// Create the watchservice
try {
Path path = Paths.get("C:/Users/rvanduijnhoven/Documents/jsfoutput/");
WatchService service = FileSystems.getDefault().newWatchService();
path.register(service, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
WatchKey key;
while (true) {
key = service.take();
for (WatchEvent<?> event : key.pollEvents()) {
// Code here that does something when new edges have been generated
System.out.println(event.context().toString());
WatchEvent<Path> ev = (WatchEvent<Path>) event;
WatchEvent.Kind kind = ev.kind();
if (kind == OVERFLOW) {
continue; // just to demonstrate
}
Path changed = ev.context();
Path child = path.resolve(changed);
if (changed.toString().equals("jsfweek14.bin")) {
clearKochPanel();
File file = new File("C:\\Users\\rvanduijnhoven\\Documents\\jsfoutput\\jsfweek14.bin");
FileChannel fileChannel = null;
MappedByteBuffer map = null;
int counter = 0;
// Now read every edge from the file and draw it.
try {
fileChannel = new RandomAccessFile(file, "r").getChannel();
map = fileChannel.map(FileChannel.MapMode.READ_ONLY, 0, 4096 * 128 * 128);
double d = map.getDouble();
currentLevel = (int) d;
counter = (int) (3 * Math.pow(4, currentLevel - 1));
for (int i = 0; i <= counter; i++) {
double X1 = map.getDouble();
double Y1 = map.getDouble();
double X2 = map.getDouble();
double Y2 = map.getDouble();
double red = map.getDouble();
double green = map.getDouble();
double blue = map.getDouble();
Edge e = new Edge(X1, Y1, X2, Y2, new Color(red, green, blue, 1));
drawEdge(e);
}
key.reset();
} catch (Exception ex) {
ex.printStackTrace();
} finally {
fileChannel.close();
map.clear();
}
}
key.reset();
}
}
} catch (IOException ioe) {
ioe.printStackTrace();
} catch (Exception ie) {
ie.printStackTrace();
}
}
@Override
public void run() {
while (running) {
try {
WatchKey key = watcher.take();
sleep(100);
for (WatchEvent<?> event : key.pollEvents()) {
Kind<?> kind = event.kind();
String dateiname = event.context().toString();
int linie;
LineReader lr;
switch (kind.name()) {
case "ENTRY_CREATE":
// HTreff<X>PN<Y>.ctl
// HTreff<X>PN<Y>.nrt
// HTreff<X>MN<Y>.ctl
// HTreff<X>MN<Y>.nrt
if (!dateiname.startsWith("HTreff")) break;
int endIndex = dateiname.indexOf('N') - 1;
linie = Integer.parseUnsignedInt(dateiname.substring(6, endIndex));
lr = getLineReaderByNumber(linie);
if (lr != null) {
File datei = new File(dateiname);
if (dateiname.endsWith(".ctl")) {
FileInputStream reader = null;
try {
reader = new FileInputStream(dateiname);
List<String> lines = IOUtils.readLines(reader, Charset.forName("UTF-8"));
if (lines.size() > 0) lr.addTreffer(new Hit(lines.get(0)));
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) IOUtils.closeQuietly(reader);
}
}
if (!datei.delete()) {
System.out.println(dateiname + " konnte nicht gelöscht werden.");
}
}
break;
case "ENTRY_DELETE":
// HServ<X>.ctl
if (dateiname.startsWith("HServ") && dateiname.endsWith(".ctl")) {
linie = Integer.parseUnsignedInt(dateiname.substring(5, dateiname.length() - 4));
lr = getLineReaderByNumber(linie);
if (lr != null) lr.reenable();
}
break;
default: // OVERFLOW
continue;
}
}
key.reset();
} catch (InterruptedException | ClosedWatchServiceException e) {
if (running) {
e.printStackTrace();
}
}
}
}
@Override
public void run() {
while (!stopped) {
try {
final WatchKey key = watchService.take();
if (key != null) {
try {
PathData pathData = pathDataByKey.get(key);
if (pathData != null) {
List<WatchEvent<?>> events = new ArrayList<>(key.pollEvents());
final List<FileChangeEvent> results = new ArrayList<>();
List<WatchEvent<?>> latest;
do {
// we need to wait till nothing has changed in 500ms to make sure we have picked up
// all the changes
Thread.sleep(WAIT_TIME);
latest = key.pollEvents();
events.addAll(latest);
} while (!latest.isEmpty());
final Set<File> addedFiles = new HashSet<>();
final Set<File> deletedFiles = new HashSet<>();
for (WatchEvent<?> event : events) {
Path eventPath = (Path) event.context();
File targetFile = ((Path) key.watchable()).resolve(eventPath).toFile();
FileChangeEvent.Type type;
if (event.kind() == ENTRY_CREATE) {
type = FileChangeEvent.Type.ADDED;
addedFiles.add(targetFile);
if (targetFile.isDirectory()) {
try {
addWatchedDirectory(pathData, targetFile);
} catch (IOException e) {
e.printStackTrace();
}
}
} else if (event.kind() == ENTRY_MODIFY) {
type = FileChangeEvent.Type.MODIFIED;
} else if (event.kind() == ENTRY_DELETE) {
type = FileChangeEvent.Type.REMOVED;
deletedFiles.add(targetFile);
} else {
continue;
}
results.add(new FileChangeEvent(targetFile, type));
}
key.pollEvents().clear();
// now we need to prune the results, to remove duplicates
// e.g. if the file is modified after creation we only want to
// show the create event
final List<FileChangeEvent> newEvents = new ArrayList<>();
Iterator<FileChangeEvent> it = results.iterator();
while (it.hasNext()) {
FileChangeEvent event = it.next();
boolean added = addedFiles.contains(event.getFile());
boolean deleted = deletedFiles.contains(event.getFile());
if (event.getType() == FileChangeEvent.Type.MODIFIED) {
if (added || deleted) {
it.remove();
}
} else if (event.getType() == FileChangeEvent.Type.ADDED) {
if (deleted) {
it.remove();
newEvents.add(
new FileChangeEvent(
event.getFile(),
FileChangeEvent.Type
.MODIFIED)); // if it was both deleted and added it was modified
}
} else if (event.getType() == FileChangeEvent.Type.REMOVED) {
if (added) {
it.remove();
}
}
}
results.addAll(newEvents);
if (!results.isEmpty()) {
for (FileChangeCallback callback : pathData.callbacks) {
invokeCallback(callback, results);
}
}
}
} finally {
// if the key is no longer valid remove it from the files list
if (!key.reset()) {
files.remove(key.watchable());
}
}
}
} catch (InterruptedException e) {
// ignore
} catch (ClosedWatchServiceException cwse) {
// the watcher service is closed, so no more waiting on events
// @see https://developer.jboss.org/message/911519
break;
}
}
}
private void processEvents() {
while (true) {
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException e) {
return;
}
Path dir = keys.get(key);
if (dir == null) {
LOGGER.warn("Could not find key for " + key);
continue;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind kind = event.kind();
WatchEvent<Path> ev = (WatchEvent<Path>) event;
// Context for directory entry event is the file name of entry
Path name = ev.context();
Path child = dir.resolve(name);
LOGGER.debug("Processing event {} on path {}", kind, child);
if (kind == OVERFLOW) {
// rescan();
continue;
}
try {
if (kind == ENTRY_CREATE) {
if (Files.isDirectory(child, NOFOLLOW_LINKS)) {
// if directory is created, and watching recursively, then
// register it and its sub-directories
Files.walkFileTree(child, new FilteringFileVisitor());
} else if (Files.isRegularFile(child, NOFOLLOW_LINKS)) {
scan(child);
}
} else if (kind == ENTRY_MODIFY) {
if (Files.isRegularFile(child, NOFOLLOW_LINKS)) {
scan(child);
}
} else if (kind == ENTRY_DELETE) {
unscan(child);
}
} catch (IOException x) {
// ignore to keep sample readbale
x.printStackTrace();
}
}
// reset key and remove from set if directory no longer accessible
boolean valid = key.reset();
if (!valid) {
LOGGER.debug("Removing key " + key + " and dir " + dir + " from keys");
keys.remove(key);
// all directories are inaccessible
if (keys.isEmpty()) {
break;
}
}
}
}
// void processEvents() {
public void run() {
System.out.println("WatchDir Thread INFO: priority=" + Thread.currentThread().getPriority());
for (; ; ) {
// wait for key to be signalled
System.out.println("WatchDir INFO: restarting loop...acquiring new key");
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
return;
}
Path dir = keys.get(key);
if (dir == null) {
System.err.println("WatchKey not recognized!!");
continue;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind kind = event.kind();
// TBD - provide example of how OVERFLOW event is handled
if (kind == OVERFLOW) {
System.out.println("Encountered OVERFLOW Event - " + event);
continue;
}
// Context for directory entry event is the file name of entry
WatchEvent<Path> ev = cast(event);
Path name = ev.context();
Path child = dir.resolve(name);
// print out event
System.out.format("[WatchDir] %s: %s\n", event.kind().name(), child);
// if directory is created, and watching recursively, then
// register it and its sub-directories
if (recursive && (kind == ENTRY_CREATE)) {
try {
if (Files.isDirectory(child, NOFOLLOW_LINKS)) {
registerAll(child);
}
} catch (IOException x) {
// ignore to keep sample readbale
}
}
long t = System.currentTimeMillis();
if (!Folder.dontWatch.contains(Folder.getInternalPath(child))) {
Thread.currentThread().setPriority(Thread.NORM_PRIORITY);
System.out.println(
"WatchDir#"
+ key
+ " INFO: path="
+ child
+ ", internal="
+ Folder.getInternalPath(child)
+ " is NOT in don't watch list. Forwarding it to other peers. @"
+ Main.timeToString(t)); // DEBUG
forwardToItopic(kind, child);
} else {
Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
System.out.println(
"WatchDir#"
+ key
+ " INFO: path="
+ child
+ ", internal="
+ Folder.getInternalPath(child)
+ " IS in the don't watch list. NOT forwarding. @"
+ Main.timeToString(t)); // DEBUG
// try{
// Thread.sleep(minDelayBtwnWatchEvents);
// } catch(InterruptedException ex) {
// System.err.println("Exception:"+ex+" while trying to sleep WatchDir thread");
// ex.printStackTrace();
// }
}
}
// reset key and remove from set if directory no longer accessible
boolean valid = key.reset();
if (!valid) {
keys.remove(key);
// all directories are inaccessible
if (keys.isEmpty()) {
break;
}
}
}
}
@Override
public void run() {
logger.debug("Register root " + startDir.toString());
try {
registerAll(startDir);
} catch (IOException ex) {
logger.error(ex.getMessage());
return;
}
if (isInterrupted()) return;
VOSync.debug("Sync local db with drive");
DbPool.goSql(
"Synching the local db with drive",
"select NAME from FILES",
new SqlWorker<Boolean>() {
@Override
public Boolean go(Connection conn, PreparedStatement stmt) throws SQLException {
ResultSet resSet = stmt.executeQuery();
while (resSet.next()) {
try {
String fileName = resSet.getString(1);
Path filePath =
FileSystems.getDefault().getPath(startDir.toString(), fileName.substring(1));
if (!filePath.toFile().exists()) {
logger.debug(
"Deleting file " + fileName + " existing in DB and not present on disk");
api.delete(fileName);
MetaHandler.delete(fileName);
}
} catch (DropboxException ex) {
}
}
resSet.close();
return true;
}
});
if (isInterrupted()) return;
VOSync.debug("Sync storage");
syncStorage();
logger.debug("Start watching");
while (!isInterrupted()) {
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException x) {
return;
}
Path dir = keys.get(key);
if (dir == null) {
System.err.println("WatchKey " + key.toString() + " not recognized!");
continue;
}
for (WatchEvent<?> event : key.pollEvents()) {
Kind<?> kind = event.kind();
// TBD - provide example of how OVERFLOW event is handled
if (kind == OVERFLOW) {
continue;
}
// Context for directory entry event is the file name of entry
WatchEvent<Path> ev = cast(event);
Path name = ev.context();
Path child = dir.resolve(name);
Path relativeDir = startDir.relativize(child);
String fileRelPath = "/" + fixPath(relativeDir.toString());
// print out event
logger.debug(event.kind().name() + ":" + child + " " + name + " " + key);
try {
if (Files.exists(child, new LinkOption[] {}) && Files.isHidden(child)) {
logger.error(
"Skipping hidden file " + child.getFileName()); // skip OS generated catalog files
} else {
if (event.kind() == ENTRY_CREATE) {
if (Files.isRegularFile(child, NOFOLLOW_LINKS)) { // file modified
uploadFile(fileRelPath, child);
} else if (Files.isDirectory(child, NOFOLLOW_LINKS)) { // directory contents changed
registerAll(child);
}
} else if (event.kind() == ENTRY_DELETE) {
logger.debug("Deleting " + fileRelPath);
api.delete(fileRelPath);
MetaHandler.delete(fileRelPath);
logger.debug("Deleted!");
} else if (event.kind() == ENTRY_MODIFY) {
if (Files.isRegularFile(child, NOFOLLOW_LINKS)) { // file modified
uploadFile(fileRelPath, child);
} else if (Files.isDirectory(child, NOFOLLOW_LINKS)) { // directory contents changed
// logger.debug("Renewing dir: "+relativeDir.toString());
// TODO update folder date
// MetaHandler.setFile(fileRelPath, child, rev);
}
}
}
} catch (IOException ex) {
ex.printStackTrace();
logger.error(ex.getMessage());
} catch (DropboxException ex) {
ex.printStackTrace();
logger.error(ex.getMessage());
}
}
boolean valid = key.reset();
if (!valid) keys.remove(key);
}
}
/**
* In order to implement a file watcher, we loop forever ensuring requesting to take the next
* item from the file watchers queue.
*/
@Override
public void run() {
final Path path = Paths.get(spath);
try {
// We wait until the file we are told to monitor exists.
while (!Files.exists(path)) {
Thread.sleep(200);
}
// get the first event before looping
WatchKey key = null;
while (session.isOpen() && connected && (key = watcher.take()) != null) {
try {
if (!Files.exists(path)) continue;
for (WatchEvent<?> event : key.pollEvents()) {
if (!Files.exists(path)) continue;
Path epath = (Path) event.context();
if (!Files.isDirectory(path) && !path.endsWith(epath)) continue;
try {
// Data has changed, read its shape and publish the event using a web socket.
final IDataHolder holder =
ServiceHolder.getLoaderService().getData(spath, new IMonitor.Stub());
if (holder == null) continue; // We do not stop if the loader got nothing.
final ILazyDataset lz =
sdataset != null && !"".equals(sdataset)
? holder.getLazyDataset(sdataset)
: holder.getLazyDataset(0);
if (lz == null) continue; // We do not stop if the loader got nothing.
if (lz instanceof IDynamicDataset) {
((IDynamicDataset) lz).refreshShape();
}
if (writing) {
ServiceHolder.getLoaderService().clearSoftReferenceCache(spath);
}
final DataEvent evt = new DataEvent(lz.getName(), lz.getShape());
evt.setFilePath(spath);
// We manually JSON the object because we
// do not want a dependency and object simple
String json = evt.encode();
session.getRemote().sendString(json);
if (diagInfo != null) diagInfo.record("JSON Send", json);
} catch (HDF5FunctionArgumentException h5error) {
// This happens sometimes when the file is not ready to read.
logger.trace("Path might not be ready to read " + path);
continue;
} catch (Exception ne) {
logger.error("Exception getting data from " + path);
continue;
}
break;
}
} finally {
key.reset();
}
}
} catch (Exception e) {
logger.error("Exception monitoring " + path, e);
if (session.isOpen()) session.close(403, e.getMessage());
} finally {
if (diagInfo != null) diagInfo.record("Close Thread", Thread.currentThread().getName());
try {
watcher.close();
} catch (IOException e) {
logger.error("Error closing watcher", e);
}
}
}
void scanDirectory(String path) throws IOException, InterruptedException {
watcher = FileSystems.getDefault().newWatchService();
Path directoryName = null;
Path dir = Paths.get(path);
// dir.register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
registerAll(dir);
System.out.println("er i path");
for (; ; ) {
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException e) {
e.printStackTrace();
return;
}
// System.out.println("er i while");
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.Kind kind = event.kind();
WatchEvent<Path> ev = (WatchEvent<Path>) event;
Path filename = ev.context();
Path directory;
if (filename != null) {
// System.out.println("filename != null.");
directory = dir.resolve(filename);
} else {
continue;
}
// System.out.println("filename er "+filename);
if (kind == OVERFLOW) {
// System.out.println("fikk en overflow. ");
continue;
} else if (kind == ENTRY_MODIFY) {
// System.out.println(kind.name() + " for path/directory " + directory);
} else if (kind == ENTRY_CREATE) {
System.out.println(kind.name() + " for path/directory " + directory);
// System.out.println("suffix length er "+suffix[1]);
System.out.println(kind.name() + " for path/directory " + directory);
// System.out.println("filnavn er" + filename);
String suffix[] = (directory.toString()).split("\\.");
if ((suffix.length > 1) && (suffix[1].endsWith("evt"))) {
System.out.println("Laget fil.");
String adress =
(directory.getParent().toAbsolutePath() + "/" + directoryName + "/" + filename);
convertToSimpleEvent(adress);
} else if (Files.isDirectory(directory, LinkOption.NOFOLLOW_LINKS)) {
directoryName = filename;
registerAll(directory);
// System.out.println("Laget fil og venter i 6 sec.");
Thread.sleep(6000);
// traverseDirectories(directory.toString());
// System.out.println("Ny mappe er laget på lokajson."+directory);
}
} else if (kind == ENTRY_DELETE) {
System.out.println(kind.name() + " " + directory);
}
}
boolean valid = key.reset();
if (!valid) {
System.out.println("ble ikke valid " + valid);
keys.remove(key);
// all directories are inaccessible
if (keys.isEmpty()) {
break;
}
}
}
}
