/** 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;
        }
      }
    }
  }
Ejemplo n.º 2
0
  /** 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;
      }
    }
  }
Ejemplo n.º 3
0
  /** 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;
        }
      }
    }
  }
Ejemplo n.º 4
0
 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");
 }
Ejemplo n.º 5
0
  @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;
        }
      }
    }
  }
Ejemplo n.º 7
0
  // 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;
        }
      }
    }
  }