Android Open Source - ivotingverification J S O N Parser

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License

The source code is released under:
GNU General Public License
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Java Source Code

/**
 * Copyright (C) 2013 Eesti Vabariigi Valimiskomisjon 
 * (Estonian National Electoral Committee), www.vvk.ee
 *//from w w  w.j a  v  a 2 s . c  o m
 * Written in 2013 by AS Finestmedia, www.finestmedia.ee
 * 
 * Vote-verification application for Estonian Internet voting system
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 **/
 
package ee.vvk.ivotingverification.util;

import java.util.HashMap;
import java.util.Iterator;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * JSON parser.
 * 
 * @version 16.05.2013
 */
public class JSONParser {

  private static final String TAG_APP_CONFIG = "appConfig";
  private static final String TAG_TEXTS = "texts";
  private static final String TAG_ERRORS = "errors";
  private static final String TAG_COLORS = "colors";
  private static final String TAG_PARAMS = "params";
  private static final String TAG_ELECTIONS = "elections";

  private JSONObject texts = null;
  private JSONObject errors = null;
  private JSONObject colors = null;
  private JSONObject params = null;
  private JSONObject elections = null;

  private JSONObject jObj = null;
  private JSONObject jObjConfig = null;

  public JSONParser(String input) throws JSONException {

    jObj = new JSONObject(input.substring(1, input.length()));
    jObjConfig = jObj.optJSONObject(TAG_APP_CONFIG);

    parseJsonAppConfig(jObjConfig);
  }

  public void parseJsonAppConfig(JSONObject json) throws JSONException {
    parseJsonTexts(json);
    parseJsonErrors(json);
    parseJsonColors(json);
    parseJsonParams(json);
    parseJsonElections(json);
  }

  private void parseJsonTexts(JSONObject json) throws JSONException {
    texts = json.optJSONObject(TAG_TEXTS);
    if (texts.length() > 0) {
      C.loading = texts.optString("loading", C.loading);
      C.welcomeMessage = texts.optString("welcome_message",
          C.welcomeMessage);
      C.lblVote = texts.optString("lbl_vote", C.lblVote);
      C.lblVoteTxt = texts.optString("lbl_vote_txt", C.lblVoteTxt);
      C.btnNext = texts.optString("btn_next", C.btnNext);
      C.btnMore = texts.optString("btn_more", C.btnMore);
      C.btnOk = texts.optString("btn_ok", C.btnOk);
      C.btnPacketData = texts.optString("btn_packet_data",
          C.btnPacketData);
      C.btnWifi = texts.optString("btn_wifi", C.btnWifi);
      C.btnVerify = texts.optString("btn_verify", C.btnVerify);
      C.lblChoice = texts.optString("lbl_choice", C.lblChoice);
      C.lblCloseTimeout = texts.optString("lbl_close_timeout",
          C.lblCloseTimeout);
      C.notificationTitle = texts.optString("notification_title",
          C.notificationTitle);
      C.notificationMessage = texts.optString("notification_message",
          C.notificationMessage);
    }
  }

  private void parseJsonErrors(JSONObject json) throws JSONException {
    errors = json.optJSONObject(TAG_ERRORS);
    if (texts.length() > 0) {
      C.noNetworkMessage = errors.optString("no_network_message",
          C.noNetworkMessage);
      C.problemQrCodeMessage = errors.optString("problem_qrcode_message",
          C.problemQrCodeMessage);
      C.badServerResponseMessage = errors.optString(
          "bad_server_response_message", C.badServerResponseMessage);
      C.badVerificationMessage = errors.optString(
          "bad_verification_message", C.badVerificationMessage);
    }
  }

  private void parseJsonColors(JSONObject json) throws JSONException {
    colors = json.optJSONObject(TAG_COLORS);
    if (colors.length() > 0) {
      C.frameBackground = colors.optString("frame_background",
          C.frameBackground);
      C.mainWindowForeground = colors.optString("main_window_foreground",
          C.mainWindowForeground);
      C.errorWindowForeground = colors.optString(
          "error_window_foreground", C.errorWindowForeground);
      C.loadingWindow = colors.optString("loading_window_background",
          C.loadingWindow);
      C.loadingWindowForeground = colors.optString(
          "loading_window_foreground", C.loadingWindowForeground);
      C.mainWindow = colors.optString("main_window", C.mainWindow);
      C.mainWindowShadow = colors.optString("main_window_shadow",
          C.mainWindowShadow);
      C.errorWindow = colors.optString("error_window", C.errorWindow);
      C.errorWindowShadow = colors.optString("error_window_shadow",
          C.errorWindowShadow);
      C.btnBackground = colors.optString("btn_background",
          C.btnBackground);
      C.btnForeground = colors.optString("btn_foreground",
          C.btnForeground);
      C.btnVerifyForeground = colors.optString("btn_verify_foreground",
          C.btnVerifyForeground);
      C.btnVerifyBackgroundStart = colors.optString(
          "btn_verify_background_start", C.btnVerifyBackgroundStart);
      C.btnVerifyBackgroundCenter = colors
          .optString("btn_verify_background_center",
              C.btnVerifyBackgroundCenter);
      C.btnVerifyBackgroundEnd = colors.optString(
          "btn_verify_background_end", C.btnVerifyBackgroundEnd);
      C.lblBackground = colors.optString("lbl_background",
          C.lblBackground);
      C.lblForeground = colors.optString("lbl_foreground",
          C.lblForeground);
      C.lblShadow = colors.optString("lbl_shadow", C.lblShadow);
      C.lblOuterContainerBackground = colors.optString(
          "lbl_outer_container_background",
          C.lblOuterContainerBackground);
      C.lblOuterContainerForeground = colors.optString(
          "lbl_outer_container_foreground",
          C.lblOuterContainerForeground);
      C.lblInnerContainerBackground = colors.optString(
          "lbl_inner_container_background",
          C.lblInnerContainerBackground);
      C.lblInnerContainerForeground = colors.optString(
          "lbl_inner_container_foreground",
          C.lblInnerContainerForeground);
      C.lblCloseTimeoutForeground = colors
          .optString("lbl_close_timeout_foreground",
              C.lblCloseTimeoutForeground);
      C.lblCloseTimeoutBackgroundStart = colors.optString(
          "lbl_close_timeout_background_start",
          C.lblCloseTimeoutBackgroundStart);
      C.lblCloseTimeoutBackgroundCenter = colors.optString(
          "lbl_close_timeout_background_center",
          C.lblCloseTimeoutBackgroundCenter);
      C.lblCloseTimeoutBackgroundEnd = colors.optString(
          "lbl_close_timeout_background_end",
          C.lblCloseTimeoutBackgroundEnd);
      C.lblCloseTimeoutShadow = colors.optString(
          "lbl_close_timeout_shadow", C.lblCloseTimeoutShadow);
      C.lblOuterInnerContainerDivider = colors.optString(
          "lbl_outer_inner_container_divider",
          C.lblOuterInnerContainerDivider);
    }
  }

  private void parseJsonParams(JSONObject json) throws JSONException {
    params = json.optJSONObject(TAG_PARAMS);
    if (params.length() > 0) {
      C.appURL = params.optString("app_url", C.appURL);
      C.helpURL = params.optString("help_url", C.helpURL);
      C.closeTimeout = params.optInt("close_timeout", C.closeTimeout);
      C.closeInterval = params.optInt("close_interval", C.closeInterval);
      C.publicKey = params.optString("public_key", C.publicKey);
    }
  }

  private void parseJsonElections(JSONObject json) throws JSONException {
    elections = json.optJSONObject(TAG_ELECTIONS);
    if (elections.length() > 0) {
      Iterator<String> myIter = elections.keys();
      HashMap<String, String> electionsMap = new HashMap<String, String>();

      while (myIter.hasNext()) {
        String tempValue = myIter.next();
        electionsMap.put(tempValue,
            elections.optString(tempValue, tempValue));
      }
      C.elections = electionsMap;
    }
  }
}
Java Source Code List
