static void checkExpectedEvent(
Iterable<WatchEvent<?>> events, WatchEvent.Kind<?> expectedKind, Object expectedContext) {
WatchEvent<?> event = events.iterator().next();
System.out.format(
"got event: type=%s, count=%d, context=%s\n", event.kind(), event.count(), event.context());
if (event.kind() != expectedKind) throw new RuntimeException("unexpected event");
if (!expectedContext.equals(event.context())) throw new RuntimeException("unexpected context");
}
/** Process all events for keys queued to the watcher */
void processEvents() {
for (; ; ) {
// 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;
}
for (WatchEvent<?> event : key.pollEvents()) {
WatchEvent.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
System.out.format("%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
}
}
}
// 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;
}
}
}
}
/** 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;
}
}
}
}
/** 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;
}
}
}
@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);
}
}
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;
}
}
}
}
// 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;
}
}
}
}