Android Open Source - jpdroid Jpdroid Json Converter

From Project

Back to project page jpdroid.

License

The source code is released under:

GNU General Public License

If you think the Android project jpdroid listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package br.com.rafael.jpdroid.converters;
//  ww  w.j  a  va  2s  .  com
import java.lang.reflect.Field;
import java.util.List;

import org.json.JSONArray;
import org.json.JSONObject;

import android.database.Cursor;
import android.util.Log;
import br.com.rafael.jpdroid.annotations.Entity;

/**
 * Classe respons?vel pela convers?o objetos para o formato JSON.
 * 
 * @author Rafael Centenaro
 *
 */
public class JpdroidJsonConverter {

  public static JSONArray toJson(Object entity) throws Exception {
   
    return getJSONArray(entity);
  }
  
  public static JSONArray toJson(Cursor cursor) throws Exception {
     
    return getJSONArray(cursor);
  }

  public static JSONArray getJSONArray(Object entity) throws Exception {
    JSONArray resultSet = new JSONArray();
    JSONObject jsonObject = null;

    Object[] element = null;

    if (entity instanceof List) {
      element = ((List<?>) entity).toArray(new Object[((List<?>) entity).size()]);

    } else {
      element = new Object[1];
      element[0] = entity;
    }

    for (Object item : element) {
      jsonObject = new JSONObject();
      Class<?> classe = item.getClass();
      Field[] declaredFields = classe.getDeclaredFields();
      for (Field field : declaredFields) {
        field.setAccessible(true);
        Object child = field.get(item);
        if (child != null) {
          if (child instanceof List || child.getClass().getAnnotation(Entity.class) != null) {
            jsonObject.accumulate(field.getName(), getJSONArray(child));
          } else {
            jsonObject.put(field.getName(), child.toString());
          }
        }
      }
      resultSet.put(jsonObject);
    }

    return resultSet;
  }

  public static JSONArray getJSONArray(Cursor cursor) {
    JSONArray resultSet = new JSONArray();

    cursor.moveToFirst();
    while (cursor.isAfterLast() == false) {

      int totalColumn = cursor.getColumnCount();
      JSONObject rowObject = new JSONObject();

      for (int i = 0; i < totalColumn; i++) {
        if (cursor.getColumnName(i) != null) {

          try {

            if (cursor.getString(i) != null) {
              Log.d("TAG_NAME", cursor.getString(i));
              rowObject.put(cursor.getColumnName(i), cursor.getString(i));
            } else {
              rowObject.put(cursor.getColumnName(i), "");
            }
          } catch (Exception e) {
            Log.d("TAG_NAME", e.getMessage());
          }
        }

      }

      resultSet.put(rowObject);
      cursor.moveToNext();
    }

    Log.d("TAG_NAME", resultSet.toString());
    return resultSet;
  }
}

Java Source Code List