Esempio n. 1
0
  /** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */
  protected void addObject(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    Connection c;
    PreparedStatement st;
    ResultSet set;

    String objName;
    int objTileSrc;
    int objXOff;
    int objYOff;
    int objWidth;
    int objHeight;
    String objDesc;
    int objId;
    int objAuth;
    Gson Gson;
    FormResponse resp;

    resp = null;

    c = null;
    st = null;
    set = null;

    Gson = new Gson();

    try {

      //	Verify we have authorization to do this! TODO: Set a special response code on authorization
      // failure.

      //	Perform a quick, cursory validation

      resp = validateAddForm(request);

      if (!resp.isAccepted()) {
        resp.setResult("FAIL");

      } else {

        //	Apply parameters

        objName = request.getParameter("title");
        objDesc = request.getParameter("desc");
        objTileSrc = Integer.parseInt(request.getParameter("tileset"));
        objXOff = Integer.parseInt(request.getParameter("objXOff"));
        objYOff = Integer.parseInt(request.getParameter("objYOff"));
        objWidth = Integer.parseInt(request.getParameter("objWidth"));
        objHeight = Integer.parseInt(request.getParameter("objHeight"));
        // objAuth 	= (Integer) request.getSession().getAttribute("userid");
        // TODO: Get the public flag

        System.out.println("Object name: '" + objName + "'");

        //	Generate the query

        c = DBResourceManager.getConnection();

        st = c.prepareStatement(OBJTYPE_INSERT, PreparedStatement.RETURN_GENERATED_KEYS);

        st.setString(1, objName);
        st.setInt(2, objTileSrc);
        st.setInt(3, objXOff);
        st.setInt(4, objYOff);
        st.setInt(5, objWidth);
        st.setInt(6, objHeight);
        st.setString(7, objDesc);

        st.execute();

        set = st.getGeneratedKeys();

        //	Grab the generated key

        if (set.next()) {
          objId = set.getInt(1);

          resp.setResult("OK");
          resp.addParamResult("objId", "VALUEUP:" + objId);

          //	Send the OK. Note that Dojo requires us to wrap the response
          //	in an html doc's text area for max. compatibility.

        } else {

          System.out.println("Failure to create object.");

          resp.setResult("FAIL");
        }
      }

      //	Send the resposne object no matter what

      response
          .getWriter()
          .println("<html><body><textarea>" + Gson.toJson(resp) + "</textarea></html></body>");

    } catch (Exception ex) {
      ex.printStackTrace();

      if (resp == null) {
        resp = new FormResponse();
        resp.setAcceptance(false);
      }

      resp.setResult("FAIL");
      resp.addMessage(ex.toString());

      response
          .getWriter()
          .println("<html><body><textarea>" + ex.toString() + "</textarea></html></body>");

    } finally {

      DataTools.safeCleanUp(c, st, set);
    }
  }
Esempio n. 2
0
  /**
   * When browsing objects, we'd like to make it possible to interface the object type list with a
   * Dojo Data Source. To do so, we stream the objects out as a JSON object.
   *
   * @param request
   * @param response
   * @throws ServletException
   * @throws IOException
   */
  private void doObjTypeRequestJSON(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    int fromIndex, maxResult;
    Connection c;
    PreparedStatement st;
    ResultSet set;
    JsonWriter jOut;
    int recCount;

    //	Set the content up

    response.setContentType("application/json");

    //	Setup our database information

    c = null;
    st = null;
    set = null;

    //	Setup the rest of our environment

    recCount = 0;

    jOut = new JsonWriter(response.getWriter());

    try {

      //	Parse request parameters

      fromIndex = Integer.parseInt(request.getParameter("start"));
      maxResult = Integer.parseInt(request.getParameter("count"));

      //	Create connection to the database and prep the query

      c = DBResourceManager.getConnection();

      st = c.prepareStatement(OBJTYPE_LIST_JSON);
      st.setInt(1, fromIndex);
      st.setInt(2, maxResult);

      //	Execute the query

      set = st.executeQuery();

      //	Now, stream the results out as if they were an object

      jOut.beginObject();
      jOut.name("items").beginArray();

      while (set.next()) {
        //	Write each element out as an object

        jOut.beginObject();

        jOut.name("objid").value(set.getInt("id"));
        jOut.name("objname").value(set.getString("name"));
        jOut.name("objtilesrc").value(set.getString("tilesrc"));
        jOut.name("description").value(set.getString("description"));

        jOut.endObject();

        //	Increment the record count

        recCount++;
      }

      //	Terminate the array

      jOut.endArray();

      //	Note the number of rows

      jOut.name("numRows").value(recCount);

      //	End the overall object

      jOut.endObject();

      //	Flush the output

      jOut.flush();

    } catch (Exception ex) {
      ex.printStackTrace();

    } finally {

      DataTools.safeCleanUp(c, st, set);
    }
  }