/** * 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; }
/** * 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; }