コード例 #1
0
ファイル: DirWatcher2.java プロジェクト: sciserver/vosync
  private void visitEntry(final Entry entry, DropboxEntryVisitor visitor) {
    if (null != entry.contents) {
      logger.debug(entry.path + "contents size: " + entry.contents.size());
      for (Entry child : entry.contents) {
        if (!child.isDeleted) {
          if (!child.isDir) {
            visitor.visitFile(child);
          } else {
            try {
              visitor.preVisitDirectory(child);
            } catch (IOException e) {
              logger.error(e.getMessage());
            }

            try {
              Entry childWithContents =
                  api.metadata(
                      child.path,
                      0,
                      MetaHandler.getHash(child.path),
                      true,
                      MetaHandler.getRev(child.path));
              visitEntry(childWithContents, visitor);
            } catch (DropboxException e) {
              logger.error(e.getMessage());
            }
            visitor.postVisitDirectory(child);
          }
        }
      }
    }
  }
コード例 #2
0
  private void loadMetadata(DropboxFile file) {
    Log.d(TAG, "Loading metadata for " + file.getRemoteFile());

    DropboxAPI.Entry metadata = null;
    try {
      metadata = dropboxApi.metadata(file.getRemoteFile(), 0, null, false, null);
    } catch (DropboxServerException se) {
      if (se.error == DropboxServerException._404_NOT_FOUND) {
        Log.d(TAG, "metadata NOT found! Returning NOT_FOUND status.");
        file.setStatus(DropboxFileStatus.NOT_FOUND);
        return;
      }
      throw new RemoteException("Server Exception: " + se.error + " " + se.reason, se);
    } catch (DropboxException e) {
      throw new RemoteException("Dropbox Exception: " + e.getMessage(), e);
    }

    Log.d(TAG, "Metadata retrieved. rev on Dropbox = " + metadata.rev);
    Log.d(TAG, "local rev = " + file.getOriginalRev());

    file.setLoadedMetadata(metadata);

    if (metadata.rev.equals(file.getOriginalRev())) {
      // don't bother downloading if the rev is the same
      Log.d(TAG, "revs match. returning NOT_CHANGED status.");
      file.setStatus(DropboxFileStatus.NOT_CHANGED);
    } else if (metadata.isDeleted) {
      Log.d(TAG, "File marked as deleted on Dropbox! Returning NOT_FOUND status.");
      file.setStatus(DropboxFileStatus.NOT_FOUND);
    } else {
      Log.d(TAG, "revs don't match. returning FOUND status.");
      file.setStatus(DropboxFileStatus.FOUND);
    }
  }
コード例 #3
0
ファイル: DirWatcher2.java プロジェクト: sciserver/vosync
  private void syncStorage() {
    try {
      logger.debug("Synching storage.");
      final String rootDir = "/";
      Entry folderEntry =
          api.metadata(rootDir, 0, MetaHandler.getHash(rootDir), true, MetaHandler.getRev(rootDir));

      // TODO handle removed entries

      visitEntry(
          folderEntry,
          new DropboxEntryVisitor() {
            @Override
            public void preVisitDirectory(Entry entry) throws IOException {
              if (!MetaHandler.isStored(entry.path)) {
                logger.debug("Creating local dir: " + entry.path);
                Path filePath =
                    FileSystems.getDefault().getPath(startDir.toString(), entry.path.substring(1));
                WatchKey key =
                    filePath
                        .getParent()
                        .register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
                keys.remove(key);
                key.cancel();

                filePath.toFile().mkdir();

                key =
                    filePath
                        .getParent()
                        .register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
                keys.put(key, filePath.getParent());

                MetaHandler.setFile(entry.path, filePath.toFile(), entry.rev);
              }
            }

            @Override
            public void visitFile(Entry entry) {
              if (!MetaHandler.isStored(entry.path)) downloadFile(entry.path);
              else if (!MetaHandler.isCurrent(entry.path, entry.rev)) {
                Path fullPath =
                    FileSystems.getDefault().getPath(startDir.toString(), entry.path.substring(1));
                try {
                  logger.debug("Uploading file " + entry.path);
                  uploadFile(entry.path, fullPath);
                } catch (Exception e) {
                  logger.error("Error uploading file: " + e.getMessage());
                }
              }
            }
          });

    } catch (DropboxException ex) {
      logger.error("Error syching root dir: " + ex.getMessage());
    }
  }
コード例 #4
0
ファイル: DirWatcher2.java プロジェクト: sciserver/vosync
  public void downloadFile(String relPath) {
    VOSync.debug("Downloading file from storage: " + relPath);
    Path filePath = FileSystems.getDefault().getPath(startDir.toString(), relPath.substring(1));
    try {
      WatchKey key =
          filePath.getParent().register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
      keys.remove(key);
      key.cancel();

      FileOutputStream outp = new FileOutputStream(filePath.toFile());
      DropboxFileInfo info = api.getFile(relPath, null, outp, null);
      outp.close();

      key = filePath.getParent().register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
      keys.put(key, filePath.getParent());

      MetaHandler.setFile(relPath, filePath.toFile(), info.getMetadata().rev);
    } catch (IOException ex) {
      logger.error("Error downloading file " + relPath + ": " + ex.getMessage());
    } catch (DropboxException ex) {
      ex.printStackTrace();
      logger.error("Error downloading file " + relPath + ": " + ex.getMessage());
    }
  }
コード例 #5
0
ファイル: DirWatcher2.java プロジェクト: sciserver/vosync
  @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);
    }
  }