Esempio n. 1
0
  /**
   * Extracts entries from the archive.
   *
   * @param ctx query context
   * @return text entries
   * @throws QueryException query exception
   */
  private TokenList extract(final QueryContext ctx) throws QueryException {
    final B64 archive = (B64) checkType(checkItem(expr[0], ctx), AtomType.B64);
    TokenSet hs = null;
    if (expr.length > 1) {
      // filter result to specified entries
      hs = new TokenSet();
      final Iter names = ctx.iter(expr[1]);
      for (Item en; (en = names.next()) != null; ) {
        hs.add(checkElmStr(en).string(info));
      }
    }

    final TokenList tl = new TokenList();
    final ArchiveIn in = ArchiveIn.get(archive.input(info), info);
    try {
      while (in.more()) {
        final ZipEntry ze = in.entry();
        if (ze.isDirectory()) continue;
        if (hs == null || hs.delete(token(ze.getName())) != 0) tl.add(in.read());
      }
    } catch (final IOException ex) {
      Util.debug(ex);
      ARCH_FAIL.thrw(info, ex);
    } finally {
      in.close();
    }
    return tl;
  }
Esempio n. 2
0
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    checkCreate(qc);

    final Path path = toPath(0, qc);
    final B64 archive = toB64(exprs[1], qc, false);
    final TokenSet hs = entries(2, qc);

    try (ArchiveIn in = ArchiveIn.get(archive.input(info), info)) {
      while (in.more()) {
        final ZipEntry ze = in.entry();
        final String name = ze.getName();
        if (hs == null || hs.delete(token(name)) != 0) {
          final Path file = path.resolve(name);
          if (ze.isDirectory()) {
            Files.createDirectories(file);
          } else {
            Files.createDirectories(file.getParent());
            Files.write(file, in.read());
          }
        }
      }
    } catch (final IOException ex) {
      throw ARCH_FAIL_X.get(info, ex);
    }
    return null;
  }
Esempio n. 3
0
  /**
   * Returns the entries of an archive.
   *
   * @param ctx query context
   * @return entries
   * @throws QueryException query exception
   */
  private Iter entries(final QueryContext ctx) throws QueryException {
    final B64 archive = (B64) checkType(checkItem(expr[0], ctx), AtomType.B64);

    final ValueBuilder vb = new ValueBuilder();
    final ArchiveIn in = ArchiveIn.get(archive.input(info), info);
    try {
      while (in.more()) {
        final ZipEntry ze = in.entry();
        if (ze.isDirectory()) continue;
        final FElem e = new FElem(Q_ENTRY, NS);
        long s = ze.getSize();
        if (s != -1) e.add(Q_SIZE, token(s));
        s = ze.getTime();
        if (s != -1) e.add(Q_LAST_MOD, new Dtm(s, info).string(info));
        s = ze.getCompressedSize();
        if (s != -1) e.add(Q_COMP_SIZE, token(s));
        e.add(ze.getName());
        vb.add(e);
      }
      return vb;
    } catch (final IOException ex) {
      Util.debug(ex);
      throw ARCH_FAIL.thrw(info, ex);
    } finally {
      in.close();
    }
  }