Ejemplo n.º 1
0
 @Override
 protected void doGet(HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException {
   try {
     handle(request, response, Function.REQUEST_METHOD_GET);
   } catch (JayjaxException e) {
     // only thrown after a listener is notified of issue
   } catch (ServletException e) {
     throw e;
   } catch (IOException e) {
     throw e;
   } catch (Throwable e) {
     throw new ServletException(e);
   } finally {
     Jayjax.clearInvocation();
   }
 }
Ejemplo n.º 2
0
  protected void handle(HttpServletRequest request, HttpServletResponse response, int requestMethod)
      throws Exception {
    String path = request.getPathInfo();

    Invocation invocation = Jayjax.newInvocation();
    invocation.setRequest(request);
    invocation.setResponse(response);

    Function function = Jayjax.getFunction(path);

    if (function == null) {
      Jayjax.notifyMessage(JayjaxMessage.ACTION_DOES_NOT_MAP_TO_FUNCTION, null);

      return;
    }

    invocation.setFunction(function);

    if (function.isSecure() && !request.isSecure()) {
      Jayjax.notifyMessage(JayjaxMessage.SECURE_FUNCTION_UNSECURE_CONNECTION, null);
    }

    if ((function.getRequestMethods() & requestMethod) == 0) {
      Jayjax.notifyMessage(JayjaxMessage.WRONG_METHOD_FOR_FUNCTION, null);
    }

    try {
      invocation.setParameters(HttpJson.fromRequest(request));
    } catch (Throwable e) {
      Jayjax.notifyMessage(JayjaxMessage.PARSE_REQUEST_VALUES_ERROR, e);
    }

    Matcher matcher = function.getAction().matcher(path);

    if (!matcher.matches()) {
      Jayjax.notifyMessage(JayjaxMessage.ACTION_DOES_NOT_MAP_TO_FUNCTION, null);
    }

    invocation.setMatcher(matcher);

    ArgumentResolver[] resolvers = function.getResolvers();

    Object[] arguments = new Object[resolvers.length];
    invocation.setArguments(arguments);

    try {
      for (int i = 0; i < resolvers.length; i++) {
        arguments[i] = resolvers[i].getArgument(invocation);
      }
    } catch (Throwable e) {
      Jayjax.notifyMessage(JayjaxMessage.BUILD_FUNCTION_ARGUMENTS_ERROR, e);
    }

    if (function.getValidator() != null) {
      try {
        if (!function.getValidator().isValid(invocation)) {
          return;
        }
      } catch (Throwable e) {
        Jayjax.notifyMessage(JayjaxMessage.VALIDATION_ERROR, e);
      }
    }

    Object controller = null;

    try {
      controller = Jayjax.getControllerInstance(function.getController(), request);
    } catch (Throwable e) {
      Jayjax.notifyMessage(JayjaxMessage.CONTROLLER_INSTANTIATION_ERROR, e);
    }

    Method method = function.getMethod();

    Object result = null;

    try {
      result = method.invoke(controller, arguments);
    } catch (Throwable e) {
      Jayjax.notifyMessage(JayjaxMessage.FUNCTION_INVOCATION_ERROR, e);
    }

    invocation.setResult(result);

    if (method.getReturnType() != Void.class) {
      response.setContentType(CONTENT_TYPE);

      if (result == null) {
        try {
          response.setContentLength(Json.NULL.length());
          response.getOutputStream().print(Json.NULL);
        } catch (Throwable e) {
          Jayjax.notifyMessage(JayjaxMessage.RESPONSE_WRITING_ERROR, e);
        }
      } else {
        String jsonString = "";

        try {
          JsonValue json = JsonConverters.convert(result);
          jsonString = json.toJson();
        } catch (Throwable e) {
          Jayjax.notifyMessage(JayjaxMessage.SERIALIZATION_ERROR, e);
        }

        try {
          response.setContentLength(jsonString.length());
          response.getOutputStream().print(jsonString);
        } catch (Throwable e) {
          Jayjax.notifyMessage(JayjaxMessage.RESPONSE_WRITING_ERROR, e);
        }
      }
    }
  }
Ejemplo n.º 3
0
 @Override
 public void init() throws ServletException {
   Jayjax.initialize(getServletContext());
 }