Esempio n. 1
0
  /**
   * Returns a new Java function instance.
   *
   * @param name function name
   * @param args arguments
   * @param qc query context
   * @param sc static context
   * @param ii input info
   * @return Java function or {@code null}
   * @throws QueryException query exception
   */
  static JavaMapping get(
      final QNm name,
      final Expr[] args,
      final QueryContext qc,
      final StaticContext sc,
      final InputInfo ii)
      throws QueryException {

    final byte[] uri = name.uri();
    // check if URI starts with "java:" prefix (if yes, module must be Java code)
    final boolean java = startsWith(uri, JAVAPREF);

    // rewrite function name: convert dashes to upper-case initials
    final String local = camelCase(string(name.local()));

    // check imported Java modules
    final String path = camelCase(toPath(java ? substring(uri, JAVAPREF.length) : uri));

    final ModuleLoader modules = qc.resources.modules();
    final Object jm = modules.findImport(path);
    if (jm != null) {
      final Method meth = getModMethod(jm, path, local, args.length, qc, ii);
      if (meth != null) return new JavaModuleFunc(sc, ii, jm, meth, args);
    }

    // only allowed with administrator permissions
    if (!qc.context.user.has(Perm.ADMIN)) return null;

    // check addressed class
    try {
      return new JavaFunc(sc, ii, modules.findClass(path), local, args);
    } catch (final ClassNotFoundException ex) {
      // only throw exception if "java:" prefix was explicitly specified
      if (java) throw FUNCJAVA_X.get(ii, path);
    } catch (final Throwable th) {
      throw JAVAINIT_X.get(ii, th);
    }

    // no function found
    return null;
  }
Esempio n. 2
0
  /**
   * Checks a function for RESTFful annotations.
   *
   * @return {@code true} if module contains relevant annotations
   * @throws QueryException query exception
   */
  boolean analyze() throws QueryException {
    // parse all annotations
    final EnumSet<HTTPMethod> mth = EnumSet.noneOf(HTTPMethod.class);
    final boolean[] declared = new boolean[function.args.length];
    boolean found = false;
    final int as = function.ann.size();
    for (int a = 0; a < as; a++) {
      final QNm name = function.ann.names[a];
      final Value value = function.ann.values[a];
      final byte[] local = name.local();
      final byte[] uri = name.uri();
      final boolean rexq = eq(uri, QueryText.RESTXQURI);
      if (rexq) {
        if (eq(PATH, local)) {
          // annotation "path"
          if (path != null) error(ANN_TWICE, "%", name.string());
          path = new RestXqPath(toString(value, name));
          for (final String s : path) {
            if (s.trim().startsWith("{")) checkVariable(s, AtomType.AAT, declared);
          }
        } else if (eq(CONSUMES, local)) {
          // annotation "consumes"
          strings(value, name, consumes);
        } else if (eq(PRODUCES, local)) {
          // annotation "produces"
          strings(value, name, produces);
        } else if (eq(QUERY_PARAM, local)) {
          // annotation "query-param"
          queryParams.add(param(value, name, declared));
        } else if (eq(FORM_PARAM, local)) {
          // annotation "form-param"
          formParams.add(param(value, name, declared));
        } else if (eq(HEADER_PARAM, local)) {
          // annotation "header-param"
          headerParams.add(param(value, name, declared));
        } else if (eq(COOKIE_PARAM, local)) {
          // annotation "cookie-param"
          cookieParams.add(param(value, name, declared));
        } else {
          // method annotations
          final HTTPMethod m = HTTPMethod.get(string(local));
          if (m == null) error(ANN_UNKNOWN, "%", name.string());
          if (!value.isEmpty()) {
            // remember post/put variable
            if (requestBody != null) error(ANN_TWICE, "%", name.string());
            if (m != POST && m != PUT) error(METHOD_VALUE, m);
            requestBody = checkVariable(toString(value, name), declared);
          }
          if (mth.contains(m)) error(ANN_TWICE, "%", name.string());
          mth.add(m);
        }
      } else if (eq(uri, QueryText.OUTPUTURI)) {
        // serialization parameters
        final String key = string(local);
        final String val = toString(value, name);
        if (output.get(key) == null) error(UNKNOWN_SER, key);
        output.set(key, val);
      }
      found |= rexq;
    }
    if (!mth.isEmpty()) methods = mth;

    if (found) {
      if (path == null) error(ANN_MISSING, PATH);
      for (int i = 0; i < declared.length; i++)
        if (!declared[i]) error(VAR_UNDEFINED, function.args[i].name.string());
    }
    return found;
  }