Exemplo n.º 1
0
 @Override
 public void startUpdate(final MainOptions opts) throws IOException {
   if (!table.lock(true)) throw new BaseXException(Text.DB_PINNED_X, meta.name);
   if (opts.get(MainOptions.AUTOFLUSH)) {
     final IOFile uf = meta.updateFile();
     if (uf.exists()) throw new BaseXException(Text.DB_UPDATED_X, meta.name);
     if (!uf.touch()) throw Util.notExpected("%: could not create lock file.", meta.name);
   }
 }
Exemplo n.º 2
0
  /**
   * Checks if the table of the specified database is locked.
   *
   * @param db name of database
   * @param ctx database context
   * @return result of check
   */
  public static boolean locked(final String db, final Context ctx) {
    final IOFile table = MetaData.file(ctx.globalopts.dbpath(db), DATATBL);
    if (!table.exists()) return false;

    try (final RandomAccessFile file = new RandomAccessFile(table.file(), "rw")) {
      return file.getChannel().tryLock() == null;
    } catch (final ClosedChannelException ex) {
      return false;
    } catch (final OverlappingFileLockException | IOException ex) {
      return true;
    }
  }
Exemplo n.º 3
0
  @Override
  public synchronized void finishUpdate(final MainOptions opts) {
    // remove updating file
    final boolean auto = opts.get(MainOptions.AUTOFLUSH);
    if (auto) {
      final IOFile uf = meta.updateFile();
      if (!uf.exists()) throw Util.notExpected("%: lock file does not exist.", meta.name);
      if (!uf.delete()) throw Util.notExpected("%: could not delete lock file.", meta.name);
    }

    // db:optimize(..., true) will close the database before this function is called
    if (!closed) {
      flush(auto);
      if (!table.lock(false)) throw Util.notExpected("Database '%': could not unlock.", meta.name);
    }
  }
Exemplo n.º 4
0
  @Override
  protected boolean run() throws IOException {
    final String path = MetaData.normPath(args[0]);
    if (path == null) return error(NAME_INVALID_X, args[0]);

    final IOFile bin = context.data().meta.binary(path);
    if (bin == null || !bin.exists() || bin.isDir()) return error(RES_NOT_FOUND_X, path);

    try {
      final BufferInput bi = new BufferInput(bin);
      try {
        for (int b; (b = bi.read()) != -1; ) out.write(b);
      } finally {
        bi.close();
      }
      return info(QUERY_EXECUTED_X, perf);
    } catch (final IOException ex) {
      return error(FILE_NOT_STORED_X, ex);
    }
  }
Exemplo n.º 5
0
  @Override
  public B64 item(final QueryContext qc, final InputInfo ii) throws QueryException {
    checkCreate(qc);

    final IOFile root = new IOFile(toPath(0, qc).toString());
    final ArchOptions opts = toOptions(1, Q_OPTIONS, new ArchOptions(), qc);
    final Iter entries;
    if (exprs.length > 2) {
      entries = qc.iter(exprs[2]);
    } else {
      final TokenList tl = new TokenList();
      for (final String file : root.descendants()) tl.add(file);
      entries = StrSeq.get(tl).iter();
    }

    final String format = opts.get(ArchOptions.FORMAT);
    final int level = level(opts);
    if (!root.isDir()) throw FILE_NO_DIR_X.get(info, root);

    try (final ArchiveOut out = ArchiveOut.get(format.toLowerCase(Locale.ENGLISH), info)) {
      out.level(level);
      try {
        while (true) {
          Item en = entries.next();
          if (en == null) break;
          en = checkElemToken(en);
          final IOFile file = new IOFile(root, string(en.string(info)));
          if (!file.exists()) throw FILE_NOT_FOUND_X.get(info, file);
          if (file.isDir()) throw FILE_IS_DIR_X.get(info, file);
          add(en, new B64(file.read()), out, level, qc);
        }
      } catch (final IOException ex) {
        throw ARCH_FAIL_X.get(info, ex);
      }
      return new B64(out.finish());
    }
  }
Exemplo n.º 6
0
  /**
   * Reads the configuration file and initializes the project properties. The file is located in the
   * project home directory.
   *
   * @param prop property file extension
   */
  protected synchronized void read(final String prop) {
    file = new IOFile(HOME + IO.BASEXSUFFIX + prop);

    final StringList read = new StringList();
    final TokenBuilder err = new TokenBuilder();
    if (!file.exists()) {
      err.addExt("Saving properties in \"%\"..." + NL, file);
    } else {
      BufferedReader br = null;
      try {
        br = new BufferedReader(new FileReader(file.file()));
        for (String line; (line = br.readLine()) != null; ) {
          line = line.trim();
          if (line.isEmpty() || line.charAt(0) == '#') continue;
          final int d = line.indexOf('=');
          if (d < 0) {
            err.addExt("%: \"%\" ignored. " + NL, file, line);
            continue;
          }

          final String val = line.substring(d + 1).trim();
          String key = line.substring(0, d).trim();

          // extract numeric value in key
          int num = 0;
          final int ss = key.length();
          for (int s = 0; s < ss; ++s) {
            if (Character.isDigit(key.charAt(s))) {
              num = Integer.parseInt(key.substring(s));
              key = key.substring(0, s);
              break;
            }
          }
          read.add(key);

          final Object entry = props.get(key);
          if (entry == null) {
            err.addExt("%: \"%\" not found. " + NL, file, key);
          } else if (entry instanceof String) {
            props.put(key, val);
          } else if (entry instanceof Integer) {
            props.put(key, Integer.parseInt(val));
          } else if (entry instanceof Boolean) {
            props.put(key, Boolean.parseBoolean(val));
          } else if (entry instanceof String[]) {
            if (num == 0) {
              props.put(key, new String[Integer.parseInt(val)]);
            } else {
              ((String[]) entry)[num - 1] = val;
            }
          } else if (entry instanceof int[]) {
            ((int[]) entry)[num] = Integer.parseInt(val);
          }
        }
      } catch (final Exception ex) {
        err.addExt("% could not be parsed." + NL, file);
        Util.debug(ex);
      } finally {
        if (br != null)
          try {
            br.close();
          } catch (final IOException ex) {
          }
      }
    }

    // check if all mandatory files have been read
    try {
      if (err.isEmpty()) {
        boolean ok = true;
        for (final Field f : getClass().getFields()) {
          final Object obj = f.get(null);
          if (!(obj instanceof Object[])) continue;
          final String key = ((Object[]) obj)[0].toString();
          ok &= read.contains(key);
        }
        if (!ok) err.addExt("Saving properties in \"%\"..." + NL, file);
      }
    } catch (final IllegalAccessException ex) {
      Util.notexpected(ex);
    }

    if (!err.isEmpty()) {
      Util.err(err.toString());
      write();
    }
  }
Exemplo n.º 7
0
  /** Writes the properties to disk. */
  public final synchronized void write() {
    final StringBuilder user = new StringBuilder();
    BufferedReader br = null;
    try {
      // caches options specified by the user
      if (file.exists()) {
        br = new BufferedReader(new FileReader(file.file()));
        for (String line; (line = br.readLine()) != null; ) {
          if (line.equals(PROPUSER)) break;
        }
        for (String line; (line = br.readLine()) != null; ) {
          user.append(line).append(NL);
        }
      }
    } catch (final Exception ex) {
      Util.debug(ex);
    } finally {
      if (br != null)
        try {
          br.close();
        } catch (final IOException e) {
        }
    }

    BufferedWriter bw = null;
    try {
      bw = new BufferedWriter(new FileWriter(file.file()));
      bw.write(PROPHEADER + NL);

      for (final Field f : getClass().getFields()) {
        final Object obj = f.get(null);
        if (!(obj instanceof Object[])) continue;
        final String key = ((Object[]) obj)[0].toString();

        final Object val = props.get(key);
        if (val instanceof String[]) {
          final String[] str = (String[]) val;
          bw.write(key + " = " + str.length + NL);
          final int is = str.length;
          for (int i = 0; i < is; ++i) {
            if (str[i] != null) bw.write(key + (i + 1) + " = " + str[i] + NL);
          }
        } else if (val instanceof int[]) {
          final int[] num = (int[]) val;
          final int ns = num.length;
          for (int i = 0; i < ns; ++i) {
            bw.write(key + i + " = " + num[i] + NL);
          }
        } else {
          bw.write(key + " = " + val + NL);
        }
      }
      bw.write(NL + PROPUSER + NL);
      bw.write(user.toString());
    } catch (final Exception ex) {
      Util.errln("% could not be written.", file);
      Util.debug(ex);
    } finally {
      if (bw != null)
        try {
          bw.close();
        } catch (final IOException e) {
        }
    }
  }