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
  /**
   * Creates an XQuery representation for the specified table query.
   *
   * @param filter filter terms
   * @param cols filter columns
   * @param elem element flag
   * @param tag root tag
   * @param root root flag
   * @return query
   */
  public static String findTable(
      final StringList filter,
      final TokenList cols,
      final BoolList elem,
      final byte[] tag,
      final boolean root) {

    final TokenBuilder tb = new TokenBuilder();
    final int is = filter.size();
    for (int i = 0; i < is; ++i) {
      final String[] spl = split(filter.get(i));
      for (final String s : spl) {
        byte[] term = token(s);
        if (contains(term, '"')) term = replace(term, '"', ' ');
        term = trim(term);
        if (term.length == 0) continue;
        tb.add('[');

        final boolean elm = elem.get(i);
        tb.add(elm ? ".//" : "@");
        tb.add("*:");
        tb.add(cols.get(i));

        if (term[0] == '<' || term[0] == '>') {
          tb.add(term[0]);
          tb.addLong(calcNum(substring(term, 1)));
        } else {
          tb.add(" contains text \"");
          tb.add(term);
          tb.add('"');
        }
        tb.add(']');
      }
    }
    return tb.isEmpty() ? "/" : (root ? "/" : "") + Axis.DESCORSELF + "::*:" + string(tag) + tb;
  }