Android Open Source - json-interface Json Util

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License

The source code is released under:

MIT License

Java Source Code

/**
 * This file is part of JSON Interface library.
 * Copyright (C) 2014 Noor Dawod. All rights reserved.
 * https://github.com/noordawod/json-interface
 */*ww  w  .ja  va2 s  .c o  m*/
 * Released under the MIT license
 * http://en.wikipedia.org/wiki/MIT_License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package com.fine47.json.builtin;

import android.util.Log;
import com.fine47.json.JsonArrayInterface;
import com.fine47.json.JsonObjectInterface;

/**
 * Auxiliary class used by both {@link JsonArray} and {@link JsonObject}.
 *
 * @since 1.0
 */
public class JsonUtil {

  public static String escape(String string) {
    return null == string ? "null" : org.json.JSONObject.quote(string) + "";
  }

  public static String quote(Object value) {
    if(null == value) {
      return "null";
    }
    if(value instanceof Number || value instanceof Boolean) {
      return String.valueOf(value);
    }
    return '"' + org.json.JSONObject.quote(value.toString()) + '"';
  }

  public static Object normalize(Object value) {
    if(value instanceof org.json.JSONObject) {
      return new JsonObject((org.json.JSONObject)value, true);
    }
    if(value instanceof org.json.JSONArray) {
      return new JsonArray((org.json.JSONArray)value, true);
    }
    return value;
  }

  public static String[] getKeys(org.json.JSONObject data) {
    final org.json.JSONArray array = data.names();
    String[] keys;
    if(null != array) {
      int length = array.length(), pos = -1;
      keys = new String[length];
      try {
        while(++pos < length) {
          keys[pos] = array.getString(pos);
        }
      } catch(org.json.JSONException error) {
        Log.e(
          JsonObjectInterface.LOG_TAG,
          "Error while getting JSON object's keys",
          error);
        keys = new String[0];
      }
    } else {
      keys = new String[0];
    }
    return keys;
  }

  public static org.json.JSONObject toJsonObject(String stringified) {
    if(null != stringified && !"".equals(stringified)) {
      try {
        return new org.json.JSONObject(stringified);
      } catch(Exception error) {
        Log.e(
          JsonObjectInterface.LOG_TAG,
          "Error parsing JSON object",
          error);
      }
    }
    return new org.json.JSONObject();
  }

  public static org.json.JSONArray toJsonArray(String stringified) {
    if(null != stringified && !"".equals(stringified)) {
      try {
        return new org.json.JSONArray(stringified);
      } catch(Exception error) {
        Log.e(
          JsonArrayInterface.LOG_TAG,
          "Error parsing JSON array",
          error);
      }
    }
    return new org.json.JSONArray();
  }
}

Java Source Code List

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