RetrieveCheckinsJSONServices.java

package com.ushahidi.android.app.checkin;

import java.util.ArrayList;

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

import com.ushahidi.android.app.ImageManager;
import com.ushahidi.android.app.MainApplication;
import com.ushahidi.android.app.Preferences;
import com.ushahidi.android.app.data.UsersData;

/**
 * Created by IntelliJ IDEA. User: Ahmed Date: 2/17/11 Time: 5:45 PM To change
 * this template use File | Settings | File Templates.
 */
public class RetrieveCheckinsJSONServices {
    private JSONObject jsonObject;

    private boolean processingResult;

    public RetrieveCheckinsJSONServices(String JSONString) {
        
        processingResult = true;

        try {
            jsonObject = new JSONObject(JSONString);
        } catch (JSONException e) {
            processingResult = false;
        }
    }

    private JSONObject getCheckinsObject() {
        try {
            return jsonObject.getJSONObject("payload");
        } catch (JSONException e) {
            return new JSONObject();
        }
    }

    private JSONArray getCheckinsArray() {
        try {
            return getCheckinsObject().getJSONArray("checkins");
        } catch (JSONException e) {
            return new JSONArray();
        }
    }

    private JSONArray getCheckinsUsersArray() {
        try {
            return getCheckinsObject().getJSONArray("users");
        } catch (JSONException e) {
            return new JSONArray();
        }
    }

    public ArrayList<UsersData> getCheckinsUsersList() {
        if (processingResult) {
            ArrayList<UsersData> checkinsUsersList = new ArrayList<UsersData>();
            JSONArray checkinsUsersArray = getCheckinsUsersArray();
            if (checkinsUsersArray != null) {
                for (int index = 0; index < checkinsUsersArray.length(); index++) {
                    UsersData users = new UsersData();

                    try {
                        users.setId(Integer.valueOf(checkinsUsersArray.getJSONObject(index)
                                .getString("id")));
                        users.setUserName(checkinsUsersArray.getJSONObject(index).getString("name"));
                        users.setColor(checkinsUsersArray.getJSONObject(index).getString("color"));
                    } catch (JSONException e) {

                        processingResult = false;
                        return null;
                    }

                    checkinsUsersList.add(users);
                }

                return checkinsUsersList;
            }
        }
        return null;
    }

    public ArrayList<Checkin> getCheckinsList() {
        if (processingResult) {
            ArrayList<Checkin> checkinsList = new ArrayList<Checkin>();
            JSONArray checkinsArray = getCheckinsArray();
           
            if (checkinsArray != null) {
                int arraySize = checkinsArray.length();
                for (int checkinsLoop = 0; checkinsLoop < arraySize; checkinsLoop++) {
                    Checkin currentCheckin = new Checkin();

                    try {
                        currentCheckin.setId(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "id"));
                        currentCheckin.setLoc(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "loc"));
                        currentCheckin.setLat(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "lat"));
                        currentCheckin.setLon(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "lon"));
                        currentCheckin.setDate(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "date"));
                        currentCheckin.setMsg(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "msg"));
                        currentCheckin.setUser(checkinsArray.getJSONObject(checkinsLoop).getString(
                                "user"));
                        if (!checkinsArray.getJSONObject(checkinsLoop).isNull("media")) {
                            savedMediaCheckinsList(checkinsArray.getJSONObject(checkinsLoop)
                                    .getJSONArray("media"),
                                    checkinsArray.getJSONObject(checkinsLoop).getString("id"));
                        }

                    } catch (JSONException e) {

                        processingResult = false;
                        return null;
                    }

                    checkinsList.add(currentCheckin);
                }

                return checkinsList;
            }
        }

        return null;
    }

    public void savedMediaCheckinsList(JSONArray checkinsCheckinsMediaArray, String checkinId) {
        ArrayList<CheckinMedia> checkinsMediaList = new ArrayList<CheckinMedia>();

        String fileName = "";
        String thumbNail = "";
        String url = "";
        String thumbnailUrl = "";

        if (checkinsCheckinsMediaArray != null) {
            for (int index = 0; index < checkinsCheckinsMediaArray.length(); index++) {
                CheckinMedia checkinMedia = new CheckinMedia();

                try {
                    checkinMedia.setMediaId(Integer.valueOf(checkinsCheckinsMediaArray
                            .getJSONObject(index).getString("id")));
                    checkinMedia.setCheckinId(Integer.valueOf(checkinId));
                    // generate a file name
                    url = checkinsCheckinsMediaArray.getJSONObject(index).getString("medium");

                    fileName = url.substring(url.lastIndexOf('/') + 1, url.length());

                    ImageManager.saveImageFromURL(checkinsCheckinsMediaArray.getJSONObject(index)
                            .getString("medium"), fileName, Preferences.savePath);

                    checkinMedia.setMediumLink(fileName);

                    thumbnailUrl = checkinsCheckinsMediaArray.getJSONObject(index).getString(
                            "thumb");

                    thumbNail = thumbnailUrl.substring(thumbnailUrl.lastIndexOf('/') + 1,
                            thumbnailUrl.length());

                    ImageManager.saveImageFromURL(thumbnailUrl, thumbNail, Preferences.savePath);
                    checkinMedia.setThumbnailLink(thumbNail);

                } catch (JSONException e) {
                }

                checkinsMediaList.add(checkinMedia);
            }
            MainApplication.mDb.addCheckinMedia(checkinsMediaList);
        }

    }

    public boolean isProcessingResult() {
        return processingResult;
    }
}