예제 #1
0
 /**
  * Performs the test-libraries function (still experimental).
  *
  * @param ctx query context
  * @return resulting value
  * @throws QueryException query exception
  */
 private Item testLibraries(final QueryContext ctx) throws QueryException {
   checkCreate(ctx);
   final TokenList tl = new TokenList();
   final Iter ir = ctx.iter(expr[0]);
   for (Item it; (it = ir.next()) != null; ) tl.add(checkStr(it));
   return new Suite(ctx, info).test(tl);
 }
예제 #2
0
파일: Transform.java 프로젝트: nikhi/basex
  @Override
  public Value value(final QueryContext ctx) throws QueryException {
    final int o = (int) ctx.resources.output.size();
    final Updates updates = ctx.resources.updates();
    final ContextModifier tmp = updates.mod;
    final TransformModifier pu = new TransformModifier();
    updates.mod = pu;

    try {
      for (final Let fo : copies) {
        final Iter ir = ctx.iter(fo.expr);
        Item i = ir.next();
        if (!(i instanceof ANode) || ir.next() != null) throw UPCOPYMULT.get(fo.info, fo.var.name);

        // copy node to main memory data instance
        i = ((ANode) i).dbCopy(ctx.context.options);
        // add resulting node to variable
        ctx.set(fo.var, i, info);
        pu.addData(i.data());
      }
      final Value v = ctx.value(expr[0]);
      if (!v.isEmpty()) throw BASEX_MOD.get(info);

      updates.prepare();
      updates.apply();
      return ctx.value(expr[1]);
    } finally {
      ctx.resources.output.size(o);
      updates.mod = tmp;
    }
  }
예제 #3
0
파일: FNUnit.java 프로젝트: nikhi/basex
 /**
  * Performs the test-uris function.
  *
  * @param ctx query context
  * @return resulting value
  * @throws QueryException query exception
  */
 private Item testUris(final QueryContext ctx) throws QueryException {
   checkCreate(ctx);
   final ArrayList<IO> inputs = new ArrayList<>();
   final Iter ir = ctx.iter(expr[0]);
   for (Item it; (it = ir.next()) != null; ) inputs.add(checkPath(it, ctx));
   return new Suite(ctx, info).test(inputs);
 }
예제 #4
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;
  }
예제 #5
0
 @Override
 public Value value(final QueryContext qc) throws QueryException {
   if (seqType().zeroOrOne()) {
     final Value v = item(qc, info);
     return v == null ? Empty.SEQ : v;
   }
   return qc.iter(this).value();
 }
예제 #6
0
파일: FNUnit.java 프로젝트: nikhi/basex
 /**
  * Performs the assert-equals function.
  *
  * @param ctx query context
  * @return resulting value
  * @throws QueryException query exception
  */
 private Item assertEquals(final QueryContext ctx) throws QueryException {
   final byte[] str = expr.length < 3 ? null : checkStr(expr[2], ctx);
   final Iter iter1 = ctx.iter(expr[0]), iter2 = ctx.iter(expr[1]);
   final Compare comp = new Compare(info);
   Item it1, it2;
   int c = 1;
   while (true) {
     it1 = iter1.next();
     it2 = iter2.next();
     final boolean empty1 = it1 == null, empty2 = it2 == null;
     if (empty1 && empty2) return null;
     if (empty1 || empty2 || !comp.deep(it1.iter(), it2.iter())) break;
     c++;
   }
   if (str != null) throw UNIT_MESSAGE.get(info, str);
   throw new UnitException(info, UNIT_ASSERT_EQUALS, it1, it2, c);
 }
예제 #7
0
파일: FTWords.java 프로젝트: jefferya/basex
 /**
  * Returns all tokens of the query.
  *
  * @param qc query context
  * @return token list
  * @throws QueryException query exception
  */
 private TokenList tokens(final QueryContext qc) throws QueryException {
   final TokenList tl = new TokenList();
   final Iter ir = qc.iter(query);
   for (byte[] qu; (qu = nextToken(ir)) != null; ) {
     // skip empty tokens if not all results are needed
     if (qu.length != 0 || mode == FTMode.ALL || mode == FTMode.ALL_WORDS) tl.add(qu);
   }
   return tl;
 }
예제 #8
0
파일: FNUnit.java 프로젝트: nikhi/basex
  /**
   * Performs the test function.
   *
   * @param ctx query context
   * @return resulting value
   * @throws QueryException query exception
   */
  private Item test(final QueryContext ctx) throws QueryException {
    final Unit unit = new Unit(ctx, info);
    if (expr.length == 0) return unit.test(sc);

    final ArrayList<StaticFunc> funcs = new ArrayList<>();
    final Iter ir = ctx.iter(expr[0]);
    for (Item it; (it = ir.next()) != null; ) {
      final FItem fi = checkFunc(it, ctx);
      if (fi.funcName() != null) {
        final StaticFunc sf = ctx.funcs.get(fi.funcName(), fi.arity(), null, true);
        if (sf != null) funcs.add(sf);
      }
    }
    return unit.test(sc, funcs);
  }
예제 #9
0
  /**
   * Creates a new archive.
   *
   * @param ctx query context
   * @return archive
   * @throws QueryException query exception
   */
  private B64 create(final QueryContext ctx) throws QueryException {
    final Iter entr = ctx.iter(expr[0]);
    final Iter cont = ctx.iter(expr[1]);
    final Item opt = expr.length > 2 ? expr[2].item(ctx, info) : null;
    final TokenMap map = new FuncParams(Q_OPTIONS, info).parse(opt);

    final byte[] f = map.get(FORMAT);
    final String format = f != null ? string(lc(f)) : "zip";
    final ArchiveOut out = ArchiveOut.get(format, info);
    // check algorithm
    final byte[] alg = map.get(ALGORITHM);
    int level = ZipEntry.DEFLATED;
    if (alg != null) {
      if (format.equals("zip") && !eq(alg, STORED, DEFLATE)
          || format.equals("gzip") && !eq(alg, DEFLATE)) {
        ARCH_SUPP.thrw(info, ALGORITHM, alg);
      }
      if (eq(alg, STORED)) level = ZipEntry.STORED;
      else if (eq(alg, DEFLATE)) level = ZipEntry.DEFLATED;
    }
    out.level(level);

    try {
      int e = 0;
      int c = 0;
      Item en, cn;
      while (true) {
        en = entr.next();
        cn = cont.next();
        if (en == null || cn == null) break;
        if (out instanceof GZIPOut && c > 0)
          ARCH_ONE.thrw(info, format.toUpperCase(Locale.ENGLISH));
        add(checkElmStr(en), cn, out, level);
        e++;
        c++;
      }
      // count remaining entries
      if (cn != null) do c++; while (cont.next() != null);
      if (en != null) do e++; while (entr.next() != null);
      if (e != c) throw ARCH_DIFF.thrw(info, e, c);
    } catch (final IOException ex) {
      Util.debug(ex);
      throw ARCH_FAIL.thrw(info, ex);
    } finally {
      out.close();
    }
    return new B64(out.toArray());
  }
예제 #10
0
  /**
   * Updates an archive.
   *
   * @param ctx query context
   * @return updated archive
   * @throws QueryException query exception
   */
  private B64 update(final QueryContext ctx) throws QueryException {
    final B64 archive = (B64) checkType(checkItem(expr[0], ctx), AtomType.B64);
    // entries to be updated
    final TokenObjMap<Item[]> hm = new TokenObjMap<Item[]>();

    final Iter entr = ctx.iter(expr[1]);
    final Iter cont = ctx.iter(expr[2]);
    int e = 0;
    int c = 0;
    Item en, cn;
    while (true) {
      en = entr.next();
      cn = cont.next();
      if (en == null || cn == null) break;
      hm.add(checkElmStr(en).string(info), new Item[] {en, cn});
      e++;
      c++;
    }
    // count remaining entries
    if (cn != null) do c++; while (cont.next() != null);
    if (en != null) do e++; while (entr.next() != null);
    if (e != c) ARCH_DIFF.thrw(info, e, c);

    final ArchiveIn in = ArchiveIn.get(archive.input(info), info);
    final ArchiveOut out = ArchiveOut.get(in.format(), info);
    try {
      if (in instanceof GZIPIn) ARCH_MODIFY.thrw(info, in.format().toUpperCase(Locale.ENGLISH));
      // delete entries to be updated
      while (in.more()) if (!hm.contains(token(in.entry().getName()))) out.write(in);
      // add new and updated entries
      for (final byte[] h : hm) {
        if (h == null) continue;
        final Item[] it = hm.get(h);
        add(it[0], it[1], out, ZipEntry.DEFLATED);
      }
    } catch (final IOException ex) {
      Util.debug(ex);
      ARCH_FAIL.thrw(info, ex);
    } finally {
      in.close();
      out.close();
    }
    return new B64(out.toArray());
  }
예제 #11
0
  /**
   * Deletes files from an archive.
   *
   * @param ctx query context
   * @return updated archive
   * @throws QueryException query exception
   */
  private B64 delete(final QueryContext ctx) throws QueryException {
    final B64 archive = (B64) checkType(checkItem(expr[0], ctx), AtomType.B64);
    // entries to be deleted
    final TokenObjMap<Item[]> hm = new TokenObjMap<Item[]>();
    final Iter names = ctx.iter(expr[1]);
    for (Item en; (en = names.next()) != null; ) {
      hm.add(checkElmStr(en).string(info), null);
    }

    final ArchiveIn in = ArchiveIn.get(archive.input(info), info);
    final ArchiveOut out = ArchiveOut.get(in.format(), info);
    try {
      if (in instanceof GZIPIn) ARCH_MODIFY.thrw(info, in.format().toUpperCase(Locale.ENGLISH));
      while (in.more()) if (!hm.contains(token(in.entry().getName()))) out.write(in);
    } catch (final IOException ex) {
      Util.debug(ex);
      ARCH_FAIL.thrw(info, ex);
    } finally {
      in.close();
      out.close();
    }
    return new B64(out.toArray());
  }
예제 #12
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());
    }
  }
예제 #13
0
  /**
   * Evaluates the specified function and creates a response.
   *
   * @throws Exception exception (including unexpected ones)
   */
  void create() throws Exception {
    // bind variables
    final StaticFunc sf = function.function;
    final Expr[] args = new Expr[sf.args.length];
    function.bind(http, args, error);

    // wrap function with a function call
    final MainModule mm = new MainModule(sf, args);

    // assign main module and http context and register process
    query.mainModule(mm);
    query.http(http);
    query.context.register(query);

    String redirect = null, forward = null;
    RestXqRespBuilder resp = null;
    try {
      // compile and evaluate query
      query.compile();
      final Iter iter = query.iter();
      Item item = iter.next();

      // handle response element
      if (item != null && item instanceof ANode) {
        final ANode node = (ANode) item;
        // send redirect to browser
        if (REST_REDIRECT.eq(node)) {
          final ANode ch = node.children().next();
          if (ch == null || ch.type != NodeType.TXT) throw function.error(NO_VALUE, node.name());
          redirect = string(ch.string()).trim();
          return;
        }
        // server-side forwarding
        if (REST_FORWARD.eq(node)) {
          final ANode ch = node.children().next();
          if (ch == null || ch.type != NodeType.TXT) throw function.error(NO_VALUE, node.name());
          forward = string(ch.string()).trim();
          return;
        }
        if (REST_RESPONSE.eq(node)) {
          resp = new RestXqRespBuilder();
          resp.build(node, function, iter, http);
          return;
        }
      }

      // HEAD method must return a single response element
      if (function.methods.size() == 1 && function.methods.contains(HTTPMethod.HEAD.name()))
        throw function.error(HEAD_METHOD);

      // serialize result
      final SerializerOptions sp = function.output;
      http.sopts(sp);
      http.initResponse();
      final Serializer ser = Serializer.get(http.res.getOutputStream(), sp);
      for (; item != null; item = iter.next()) ser.serialize(item);
      ser.close();

    } finally {
      query.close();
      query.context.unregister(query);

      if (redirect != null) {
        http.res.sendRedirect(redirect);
      } else if (forward != null) {
        http.req.getRequestDispatcher(forward).forward(http.req, http.res);
      } else if (resp != null) {
        if (resp.status != 0) http.status(resp.status, resp.message, resp.error);
        http.res.getOutputStream().write(resp.cache.toArray());
      }
    }
  }
예제 #14
0
 /**
  * Returns a result value.
  *
  * @return result value
  * @throws QueryException query exception
  */
 public Value value() throws QueryException {
   parse();
   return qc.iter().value();
 }
예제 #15
0
 /**
  * Returns a result iterator.
  *
  * @return result iterator
  * @throws QueryException query exception
  */
 public Iter iter() throws QueryException {
   parse();
   return qc.iter();
 }