276 lines
10 KiB
Java
276 lines
10 KiB
Java
package app.fedilab.android.sqlite;
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/* Copyright 2019 Thomas Schneider
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*
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* This file is a part of Fedilab
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Fedilab; if not,
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* see <http://www.gnu.org/licenses>. */
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import app.fedilab.android.client.API;
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import app.fedilab.android.client.Entities.Status;
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import app.fedilab.android.helper.Helper;
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/**
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* Created by Thomas on 12/05/2019.
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* Manage Timeline Cache
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*/
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public class TimelineCacheDAO {
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public Context context;
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private SQLiteDatabase db;
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public TimelineCacheDAO(Context context, SQLiteDatabase db) {
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//Creation of the DB with tables
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this.context = context;
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this.db = db;
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}
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//------- INSERTIONS -------
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/**
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* Insert a status in database
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*
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* @return boolean
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*/
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public long insert(String statusId, String jsonString, String userId, String instance) {
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ContentValues values = new ContentValues();
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values.put(Sqlite.COL_INSTANCE, instance);
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values.put(Sqlite.COL_STATUS_ID, statusId);
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values.put(Sqlite.COL_USER_ID, userId);
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values.put(Sqlite.COL_DATE, Helper.dateToString(new Date()));
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values.put(Sqlite.COL_CACHE, jsonString);
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//Inserts cached status
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long last_id;
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try {
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last_id = db.insert(Sqlite.TABLE_TIMELINE_CACHE, null, values);
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} catch (Exception e) {
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last_id = -1;
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e.printStackTrace();
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}
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return last_id;
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}
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//------- UPDATE -------
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/**
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* Update a status in database
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*/
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public void update(String statusId, String jsonString, String userId, String instance) {
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ContentValues values = new ContentValues();
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values.put(Sqlite.COL_DATE, Helper.dateToString(new Date()));
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values.put(Sqlite.COL_CACHE, jsonString);
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try {
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db.update(Sqlite.TABLE_TIMELINE_CACHE, values, Sqlite.COL_INSTANCE + " = ? AND " + Sqlite.COL_STATUS_ID + " = ? AND " + Sqlite.COL_USER_ID + " = ?", new String[]{instance, statusId, userId});
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} catch (Exception ignored) {
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}
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}
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//------- REMOVE -------
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/***
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* Remove stored status
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* @return int
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*/
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public int remove(String statusId) {
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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String userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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String instance = Helper.getLiveInstance(context);
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try {
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return db.delete(Sqlite.TABLE_TIMELINE_CACHE, Sqlite.COL_STATUS_ID + " = \"" + statusId + "\" AND " + Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\"", null);
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} catch (Exception ignored) {
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}
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return -1;
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}
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/***
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* Remove stored status
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*/
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public void removeAfterDate(String date) {
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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String userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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String instance = Helper.getLiveInstance(context);
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try {
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db.delete(Sqlite.TABLE_TIMELINE_CACHE, Sqlite.COL_DATE + " < \"" + date + "\" AND " + Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\"", null);
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} catch (Exception ignored) {
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}
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}
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/***
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* Remove stored status
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*/
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public void removeAllConnected() {
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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String userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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String instance = Helper.getLiveInstance(context);
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db.delete(Sqlite.TABLE_TIMELINE_CACHE, Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\"", null);
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}
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/***
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* Remove stored status
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* @return int
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*/
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public int removeAll() {
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return db.delete(Sqlite.TABLE_TIMELINE_CACHE, null, null);
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}
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//------- GETTERS -------
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/**
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* Returns all cached Statuses
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*
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* @return stored Status List<Status>
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*/
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public List<Status> get(String max_id) {
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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String userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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String instance = Helper.getLiveInstance(context);
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try {
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Cursor c;
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if (max_id != null)
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c = db.query(Sqlite.TABLE_TIMELINE_CACHE, null, Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\" AND " + Sqlite.COL_STATUS_ID + " <= " + max_id, null, null, null, Sqlite.COL_STATUS_ID + " DESC", "40");
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else
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c = db.query(Sqlite.TABLE_TIMELINE_CACHE, null, Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\"", null, null, null, Sqlite.COL_STATUS_ID + " DESC", "40");
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return cursorToListStatus(c);
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* Returns all cached Statuses
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*
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* @return stored Status List<Status>
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*/
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public List<Status> search(String word, String max_id) {
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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String userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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String instance = Helper.getLiveInstance(context);
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try {
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Cursor c;
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if (word != null) {
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StringBuilder query;
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if (!word.contains("\"")) {
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String[] searches = word.split(" ");
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query = new StringBuilder(" (");
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for (String search : searches) {
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query.append(Sqlite.COL_CACHE + " LIKE '%").append(search).append("%' OR ");
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}
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query = new StringBuilder(query.substring(0, query.length() - 3));
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query.append(") ");
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} else {
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String search = word.replace("\"", "");
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query = new StringBuilder(Sqlite.COL_CACHE + " LIKE '%").append(search).append("%'");
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}
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if (max_id != null) {
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c = db.query(Sqlite.TABLE_TIMELINE_CACHE, null, Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\" AND " + Sqlite.COL_STATUS_ID + " < '" + max_id + "' AND " + query, null, null, null, Sqlite.COL_STATUS_ID + " DESC", "40");
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return cursorToListStatus(c);
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} else {
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c = db.query(Sqlite.TABLE_TIMELINE_CACHE, null, Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\" AND " + query, null, null, null, Sqlite.COL_STATUS_ID + " DESC", "40");
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return cursorToListStatus(c);
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}
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}
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return null;
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* Returns one cached Statuses
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*
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* @return stored Status List<Status>
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*/
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public Status getSingle(String statusId) {
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SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
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String userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
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String instance = Helper.getLiveInstance(context);
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try {
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Cursor c = db.query(Sqlite.TABLE_TIMELINE_CACHE, null, Sqlite.COL_INSTANCE + " = \"" + instance + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId + "\" AND " + Sqlite.COL_STATUS_ID + " ='" + statusId + "'", null, null, null, Sqlite.COL_STATUS_ID + " DESC", "1");
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return cursorToSingleStatus(c);
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} catch (Exception e) {
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return null;
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}
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}
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/***
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* Method to hydrate one cached status from database
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* @param c Cursor
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* @return Status
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*/
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private Status cursorToSingleStatus(Cursor c) {
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//No element found
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if (c.getCount() == 0) {
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c.close();
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return null;
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}
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c.moveToFirst();
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Status status = null;
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try {
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status = API.parseStatuses(context, new JSONObject(c.getString(c.getColumnIndex(Sqlite.COL_CACHE))));
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status.setcached(true);
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} catch (JSONException e) {
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e.printStackTrace();
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}
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//Close the cursor
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c.close();
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//Statuses list is returned
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return status;
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}
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/***
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* Method to hydrate cached statuses from database
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* @param c Cursor
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* @return List<Status>
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*/
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private List<Status> cursorToListStatus(Cursor c) {
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//No element found
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if (c.getCount() == 0) {
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c.close();
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return null;
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}
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List<Status> statuses = new ArrayList<>();
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while (c.moveToNext()) {
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//Restore cached status
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try {
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Status status = API.parseStatuses(context, new JSONObject(c.getString(c.getColumnIndex(Sqlite.COL_CACHE))));
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status.setcached(true);
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status.setViewType(context);
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statuses.add(status);
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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//Close the cursor
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c.close();
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//Statuses list is returned
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return statuses;
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}
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}
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