Project-HomeFlix/src/main/java/kellerkinder/HomeFlix/controller/DBController.java

656 lines
24 KiB
Java

/**
* Project-HomeFlix
*
* Copyright 2016-2018 <@Seil0>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package kellerkinder.HomeFlix.controller;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import com.eclipsesource.json.Json;
import com.eclipsesource.json.JsonArray;
import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.JsonValue;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import kellerkinder.HomeFlix.application.Main;
import kellerkinder.HomeFlix.application.MainWindowController;
import kellerkinder.HomeFlix.datatypes.tableData;
public class DBController {
public DBController(Main main, MainWindowController mainWindowController) {
this.main = main;
this.mainWindowController = mainWindowController;
}
private MainWindowController mainWindowController;
private Main main;
private String DB_PATH = System.getProperty("user.home") + "\\Documents\\HomeFlix" + "\\" + "Homeflix.db"; //path to database file
private Image favorite_black = new Image("icons/ic_favorite_black_18dp_1x.png");
private Image favorite_border_black = new Image("icons/ic_favorite_border_black_18dp_1x.png");
private List<String> filmsdbAll = new ArrayList<String>();
private List<String> filmsdbDir = new ArrayList<String>();
private List<String> filmsdbStream = new ArrayList<String>();
private List<String> filmsdbStreamURL = new ArrayList<String>();
private List<String> filmsAll = new ArrayList<String>();
private List<String> filmsDir = new ArrayList<String>();
private List<String> filmsDirURL = new ArrayList<String>();
private List<String> filmsStream = new ArrayList<String>();
private List<String> filmsStreamURL = new ArrayList<String>();
private List<String> filmsStreamData = new ArrayList<String>();
private Connection connection = null;
private static final Logger LOGGER = LogManager.getLogger(DBController.class.getName());
public void init() {
LOGGER.info("<========== starting loading sql ==========>");
loadDatabase();
createDatabase();
loadData();
LOGGER.info("<========== finished loading sql ==========>");
}
public void loadDatabase() {
DB_PATH = main.getDirectory() + "/Homeflix.db";
try {
// create a database connection
connection = DriverManager.getConnection("jdbc:sqlite:" + DB_PATH);
connection.setAutoCommit(false); //AutoCommit to false -> manual commit is active
} catch (SQLException e) {
// if the error message is "out of memory", it probably means no database file is found
LOGGER.error("error while loading the ROM database", e);
}
LOGGER.info("ROM database loaded successfull");
}
public void createDatabase() {
/**
* if tables don't exist create them
* cache table: streamUrl is primary key
*/
try {
Statement stmt = connection.createStatement();
stmt.executeUpdate("create table if not exists film_local (rating, titel, streamUrl, favIcon, cached)");
stmt.executeUpdate("create table if not exists film_streaming (year, season, episode,"
+ " rating, resolution, titel, streamUrl, favIcon, cached)");
stmt.executeUpdate("create table if not exists cache ("
+ "streamUrl, Title, Year, Rated, Released, Runtime, Genre, Director, Writer,"
+ " Actors, Plot, Language, Country, Awards, Metascore, imdbRating, imdbVotes,"
+ " imdbID, Type, Poster, Response)");
stmt.close();
} catch (SQLException e) {
LOGGER.error(e);
}
// get all entries from the tables
try {
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM film_local");
while (rs.next()) {
filmsdbDir.add(rs.getString(2));
}
stmt.close();
rs.close();
rs = stmt.executeQuery("SELECT * FROM film_streaming;");
while (rs.next()) {
filmsdbStream.add(rs.getString(6));
filmsdbStreamURL.add(rs.getString(7));
}
stmt.close();
rs.close();
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
// getting all files from the selected directory
if (new File(mainWindowController.getPath()).exists()) {
for (String entry : new File(mainWindowController.getPath()).list()) {
filmsDir.add(cutOffEnd(entry));
filmsDirURL.add(entry);
// System.out.println(cutOffEnd(entry));
// System.out.println(entry);
}
} else {
LOGGER.error(mainWindowController.getPath() + "dosen't exist!");
}
// getting all entries from the streaming lists
for (int i = 0; i < mainWindowController.getStreamingData().size(); i++) {
String fileName = mainWindowController.getStreamingPath() + "/"
+ mainWindowController.getStreamingData().get(i).getStreamUrl();
try {
JsonObject object = Json.parse(new FileReader(fileName)).asObject();
JsonArray items = object.get("entries").asArray();
for (JsonValue item : items) {
filmsStream.add(item.asObject().getString("titel", ""));
filmsStreamURL.add(item.asObject().getString("streamUrl", ""));
filmsStreamData.add(fileName);
// System.out.println(item.asObject().getString("titel", ""));
// System.out.println(item.asObject().getString("streamUrl", ""));
// System.out.println(fileName);
}
} catch (IOException e) {
e.printStackTrace();
}
}
// add all entries to filmsAll and filmsdbAl, for later comparing
filmsAll.addAll(filmsDir);
filmsAll.addAll(filmsStream);
filmsdbAll.addAll(filmsdbDir);
filmsdbAll.addAll(filmsdbStream);
LOGGER.info("films in directory: " + filmsAll.size());
LOGGER.info("filme in db: " + filmsdbAll.size());
/**
* if filmsdbAll.size() == 0 the database is empty, we need to fill it with loadFilms()
* else check if there is something to remove or to add
*/
if (filmsdbAll.size() == 0) {
loadFilms();
} else {
try {
checkAddEntry();
checkRemoveEntry();
} catch (IOException | SQLException e) {
e.printStackTrace();
}
}
}
private void loadFilms() {
PreparedStatement ps;
PreparedStatement psS;
LOGGER.info("Database is empty, filling tables ...");
try {
ps = connection.prepareStatement("insert into film_local values (?, ?, ?, ?, ?)");
psS = connection.prepareStatement("insert into film_streaming values (?, ?, ?, ?, ?, ?, ?, ?, ?)");
if (new File(mainWindowController.getPath()).exists()) {
// go through all the files in the directory
for (int j = 0; j != filmsDir.size(); j++)
{
ps.setInt(1, 0); // rating as integer 1. column
ps.setString(2, filmsDir.get(j)); // name as String without ending 2. column
ps.setString(3, filmsDirURL.get(j)); // path as String 3. column
ps.setString(4, "favorite_border_black");
ps.setBoolean(5, false);
ps.addBatch(); // add command to prepared statement
}
}
if (mainWindowController.getStreamingPath().equals("") || mainWindowController.getStreamingPath().equals(null)) {
LOGGER.warn("no path selected!");
} else {
for (int i = 0; i < mainWindowController.getStreamingData().size(); i++) {
String fileNamea = mainWindowController.getStreamingPath() + "/"
+ mainWindowController.getStreamingData().get(i).getStreamUrl();
try {
JsonObject object = Json.parse(new FileReader(fileNamea)).asObject();
JsonArray items = object.get("entries").asArray();
for (JsonValue item : items) {
psS.setInt(1, item.asObject().getInt("year", 0));
psS.setInt(2, item.asObject().getInt("season", 0));
psS.setInt(3, item.asObject().getInt("episode", 0));
psS.setInt(4, 0);
psS.setString(5, item.asObject().getString("resolution", ""));
psS.setString(6, item.asObject().getString("titel", ""));
psS.setString(7, item.asObject().getString("streamUrl", ""));
psS.setString(8, "favorite_border_black");
psS.setBoolean(9, false);
psS.addBatch(); // add command to prepared statement
}
} catch (IOException e) {
LOGGER.error(e);
}
}
}
ps.executeBatch(); // execute statement to write entries into table
psS.executeBatch();
connection.commit();
ps.close();
psS.close();
} catch (SQLException e) {
LOGGER.error(e);
}
}
// loading data from database to mainWindowController
public void loadData() {
LOGGER.info("loading data to mwc ...");
try {
//load local Data
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM film_local ORDER BY titel");
while (rs.next()) {
if (rs.getString(4).equals("favorite_black")) {
mainWindowController.getLocalFilms().add(new tableData(1, 1, 1, rs.getDouble(1), "1",
rs.getString(2), rs.getString(3), new ImageView(favorite_black), rs.getBoolean(5)));
} else {
mainWindowController.getLocalFilms().add(new tableData(1, 1, 1, rs.getDouble(1), "1",
rs.getString(2), rs.getString(3), new ImageView(favorite_border_black), rs.getBoolean(5)));
}
}
stmt.close();
rs.close();
//load streaming Data FIXME check if there are streaming data before loading -> maybe there is an issue now
rs = stmt.executeQuery("SELECT * FROM film_streaming ORDER BY titel;");
while (rs.next()) {
if (rs.getString(8).equals("favorite_black")) {
mainWindowController.getStreamingFilms().add(new tableData(rs.getInt(1),
rs.getInt(2), rs.getInt(3), rs.getDouble(4), rs.getString(5), rs.getString(6),
rs.getString(7), new ImageView(favorite_black),rs.getBoolean(9)));
} else {
mainWindowController.getStreamingFilms().add(new tableData(rs.getInt(1),
rs.getInt(2), rs.getInt(3), rs.getDouble(4), rs.getString(5), rs.getString(6),
rs.getString(7), new ImageView(favorite_border_black), rs.getBoolean(9)));
}
}
stmt.close();
rs.close();
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
LOGGER.info("loading data to the GUI ...");
mainWindowController.addDataUI();
}
//Refreshes the data in mainWindowController.newDaten and mainWindowController.streamData
//FIXME it seems that there is an issue at the moment with streaming refreshing wrong entry if there is more than one with the same name
public void refresh(String name, int i) throws SQLException {
LOGGER.info("refresh ...");
Statement stmt;
try {
stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM film_local WHERE titel = \""+name+"\";" );
if (rs.getString(4).equals("favorite_black")) {
mainWindowController.getLocalFilms().set(i, new tableData(1, 1, 1, rs.getDouble(1), "1",
rs.getString(2), rs.getString(3), new ImageView(favorite_black), rs.getBoolean(5)));
} else {
mainWindowController.getLocalFilms().set(i, new tableData(1, 1, 1, rs.getDouble(1), "1",
rs.getString(2), rs.getString(3), new ImageView(favorite_border_black), rs.getBoolean(5)));
}
stmt.close();
rs.close();
} catch (SQLException e) {
LOGGER.error(e);
try {
stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM film_streaming WHERE titel = \""+name+"\";" );
if (rs.getString(8).equals("favorite_black")) {
mainWindowController.getStreamingFilms().set(i, new tableData(rs.getInt(1), rs.getInt(2),
rs.getInt(3), rs.getDouble(4),rs.getString(5), rs.getString(6), rs.getString(7),
new ImageView(favorite_black), rs.getBoolean(9)));
} else {
mainWindowController.getStreamingFilms().set(i, new tableData(rs.getInt(1), rs.getInt(2),
rs.getInt(3), rs.getDouble(4), rs.getString(5), rs.getString(6), rs.getString(7),
new ImageView(favorite_border_black), rs.getBoolean(9)));
}
stmt.close();
rs.close();
} catch (SQLException e1) {
LOGGER.error("Ups! an error occured!", e1);
}
}
}
/**
* check if there are any entries that have been removed from the film-directory
* @throws SQLException
*/
private void checkRemoveEntry() throws SQLException {
LOGGER.info("checking for entrys to remove to DB ...");
Statement stmt = connection.createStatement();
for (int i = 0; i < filmsdbDir.size(); i++) {
if (!filmsDir.contains(filmsdbDir.get(i))) {
try {
stmt.executeUpdate("delete from film_local where titel = \"" + filmsdbDir.get(i) + "\"");
connection.commit();
stmt.close();
LOGGER.info("removed \"" + filmsdbDir.get(i) + "\" from database");
} catch (Exception e) {
e.printStackTrace();
}
}
}
for (int j = 0; j < filmsdbStreamURL.size(); j++) {
if (!filmsStreamURL.contains(filmsdbStreamURL.get(j))) {
try {
stmt.executeUpdate("delete from film_streaming where titel = \"" + filmsdbStream.get(j) + "\"");
connection.commit();
stmt.close();
LOGGER.info("removed \"" + filmsdbStream.get(j) + "\" from database");
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
/**
* check if there are new films in the film-directory
* @throws SQLException
* @throws FileNotFoundException
* @throws IOException
* if lastName != filmsStreamData.get(b) then set i = 0, file changed
*/
private void checkAddEntry() throws SQLException, FileNotFoundException, IOException {
String lastName = "";
LOGGER.info("checking for entrys to add to DB ...");
String[] entries = new File(mainWindowController.getPath()).list();
Statement stmt = connection.createStatement();
PreparedStatement ps = connection.prepareStatement("insert into film_streaming values (?, ?, ?, ?, ?, ?, ?, ?, ?)");
int i = 0;
for (int a = 0; a < filmsDir.size(); a++) {
if (!filmsdbDir.contains(filmsDir.get(a))) {
stmt.executeUpdate("insert into film_local values (0, \"" + cutOffEnd(entries[a]) + "\", \""
+ entries[a] + "\",\"favorite_border_black\",0)");
connection.commit();
stmt.close();
LOGGER.info("added \"" + filmsDir.get(a) + "\" to database");
}
}
for (int b = 0; b < filmsStreamURL.size(); b++) {
if (filmsdbStreamURL.contains(filmsStreamURL.get(b))) {
} else {
if (lastName != "" && lastName != filmsStreamData.get(b)) {
i = 0;
}
lastName = filmsStreamData.get(b);
JsonObject object = Json.parse(new FileReader(filmsStreamData.get(b))).asObject();
JsonArray items = object.get("entries").asArray();
LOGGER.info(items.size() + ", " + i + "; " + b);
String streamURL = items.get(i).asObject().getString("streamUrl", "");
String titel = items.get(i).asObject().getString("titel", "");
if (streamURL.equals(filmsStreamURL.get(b))) {
LOGGER.info("added \"" + titel + "\"");
ps.setInt(1, items.get(i).asObject().getInt("year", 0));
ps.setInt(2, items.get(i).asObject().getInt("season", 0));
ps.setInt(3, items.get(i).asObject().getInt("episode", 0));
ps.setInt(4, 0);
ps.setString(5, items.get(i).asObject().getString("resolution", ""));
ps.setString(6, items.get(i).asObject().getString("titel", ""));
ps.setString(7, items.get(i).asObject().getString("streamUrl", ""));
ps.setString(8, "favorite_border_black");
ps.setBoolean(9, false);
ps.addBatch(); // adds the entry
}
i++;
}
}
ps.executeBatch();
connection.commit();
ps.close();
}
// TODO only for debugging
void ausgeben() {
LOGGER.info("Outputting all entries ... \n");
try {
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM film_local");
while (rs.next()) {
System.out.println(rs.getString(1));
System.out.println(rs.getString(2));
System.out.println(rs.getString(3));
System.out.println(rs.getString(4));
System.out.println(rs.getString(5) + "\n");
}
stmt.close();
rs.close();
LOGGER.info("Streaming Entries: \n");
rs = stmt.executeQuery("SELECT * FROM film_streaming;");
while (rs.next()) {
System.out.println(rs.getString(1));
System.out.println(rs.getString(2));
System.out.println(rs.getString(3));
System.out.println(rs.getString(4));
System.out.println(rs.getString(5));
System.out.println(rs.getString(6));
System.out.println(rs.getString(7));
System.out.println(rs.getString(8));
System.out.println(rs.getString(9) + "\n");
}
stmt.close();
rs.close();
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
}
// get favorite status
public void getFavStatus(String name) {
try {
if (mainWindowController.getMode().equals("local")) {
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT titel, rating, favIcon FROM film_local WHERE titel = \"" + name + "\";"); // SQL Befehl
LOGGER.info("local:" + rs.getString("rating") + ", " + rs.getString("titel") + ", " + rs.getString("favIcon"));
stmt.close();
rs.close();
} else {
Statement stmtS = connection.createStatement();
ResultSet rsS = stmtS.executeQuery("SELECT titel, rating, favIcon FROM film_streaming WHERE titel = \"" + name + "\";");
LOGGER.info("streaming:" + rsS.getString("rating") + ", " + rsS.getString("titel") + ", " + rsS.getString("favIcon"));
stmtS.close();
rsS.close();
}
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
}
// set rating=0 and favorite_border_black
public void dislike(String name, String streamUrl) {
LOGGER.info("defavorisieren ...");
try {
if (mainWindowController.getMode().equals("local")) {
Statement stmt = connection.createStatement();
stmt.executeUpdate("UPDATE film_local SET rating=0,favIcon='favorite_border_black' WHERE titel=\"" + name + "\";");
connection.commit();
stmt.close();
} else {
Statement stmt = connection.createStatement();
stmt.executeUpdate("UPDATE film_streaming SET rating=0,favIcon='favorite_border_black' WHERE streamUrl=\"" + streamUrl + "\";");
connection.commit();
stmt.close();
}
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
}
// set rating=1 and favorite_black
public void like(String name, String streamUrl) {
LOGGER.info("favorisieren ...");
try {
if (mainWindowController.getMode().equals("local")) {
Statement stmt = connection.createStatement();
stmt.executeUpdate("UPDATE film_local SET rating=1,favIcon='favorite_black' WHERE titel=\"" + name + "\";");
connection.commit();
stmt.close();
} else {
Statement stmt = connection.createStatement();
stmt.executeUpdate("UPDATE film_streaming SET rating=1,favIcon='favorite_black' WHERE streamUrl=\"" + streamUrl + "\";");
connection.commit();
stmt.close();
}
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
}
void setCached(String streamUrl) throws SQLException {
try {
Statement stmt = connection.createStatement();
stmt.executeUpdate("UPDATE film_local SET cached=1 WHERE streamUrl=\"" + streamUrl + "\";");
connection.commit();
stmt.close();
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
try {
Statement stmt = connection.createStatement();
stmt.executeUpdate("UPDATE film_streaming SET cached=1 WHERE streamUrl=\"" + streamUrl + "\";");
connection.commit();
stmt.close();
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
}
void addCache( String streamUrl, String Title, String Year, String Rated, String Released, String Runtime, String Genre, String Director,
String Writer, String Actors, String Plot, String Language, String Country, String Awards, String Metascore, String imdbRating,
String Type, String imdbVotes, String imdbID, String Poster, String Response) throws SQLException{
PreparedStatement ps = connection.prepareStatement("insert into cache values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
LOGGER.info("adding to cache: " + Title);
ps.setString(1,streamUrl);
ps.setString(2,Title);
ps.setString(3,Year);
ps.setString(4,Rated);
ps.setString(5,Released);
ps.setString(6,Runtime);
ps.setString(7,Genre);
ps.setString(8,Director);
ps.setString(9,Writer);
ps.setString(10,Actors);
ps.setString(11,Plot);
ps.setString(12,Language);
ps.setString(13,Country);
ps.setString(14,Awards);
ps.setString(15,Metascore);
ps.setString(16,imdbRating);
ps.setString(17,imdbVotes);
ps.setString(18,imdbID);
ps.setString(19,Type);
ps.setString(20,Poster);
ps.setString(21,Response);
ps.addBatch();
ps.executeBatch();
connection.commit();
ps.close();
LOGGER.info("done!");
}
public void readCache(String streamUrl) {
try {
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM cache WHERE streamUrl=\"" + streamUrl + "\";");
ArrayList<Text> nameText = new ArrayList<Text>();
ArrayList<Text> responseText = new ArrayList<Text>();
String fontFamily = main.getFONT_FAMILY();
Image im;
int fontSize = (int) Math.round(mainWindowController.size);
int j = 2;
nameText.add(0, new Text(mainWindowController.getBundle().getString("title") + ": "));
nameText.add(1, new Text(mainWindowController.getBundle().getString("year") + ": "));
nameText.add(2, new Text(mainWindowController.getBundle().getString("rating") + ": "));
nameText.add(3, new Text(mainWindowController.getBundle().getString("publishedOn") + ": "));
nameText.add(4, new Text(mainWindowController.getBundle().getString("duration") + ": "));
nameText.add(5, new Text(mainWindowController.getBundle().getString("genre") + ": "));
nameText.add(6, new Text(mainWindowController.getBundle().getString("director") + ": "));
nameText.add(7, new Text(mainWindowController.getBundle().getString("writer") + ": "));
nameText.add(8, new Text(mainWindowController.getBundle().getString("actors") + ": "));
nameText.add(9, new Text(mainWindowController.getBundle().getString("plot") + ": "));
nameText.add(10, new Text(mainWindowController.getBundle().getString("language") + ": "));
nameText.add(11, new Text(mainWindowController.getBundle().getString("country") + ": "));
nameText.add(12, new Text(mainWindowController.getBundle().getString("awards") + ": "));
nameText.add(13, new Text(mainWindowController.getBundle().getString("metascore") + ": "));
nameText.add(14, new Text(mainWindowController.getBundle().getString("imdbRating") + ": "));
nameText.add(15, new Text(mainWindowController.getBundle().getString("type") + ": "));
for (int i = 0; i < 15; i++) {
responseText.add(new Text(rs.getString(j) + "\n"));
j++;
}
responseText.add(new Text(rs.getString(19) + "\n"));
im = new Image(new File(rs.getString(20)).toURI().toString());
stmt.close();
rs.close();
for (int i = 0; i < nameText.size(); i++) {
nameText.get(i).setFont(Font.font(fontFamily, FontWeight.BOLD, fontSize));
responseText.get(i).setFont(Font.font(fontFamily, fontSize));
}
mainWindowController.getTextFlow().getChildren().remove(0,
mainWindowController.getTextFlow().getChildren().size());
for (int i = 0; i < nameText.size(); i++) {
mainWindowController.getTextFlow().getChildren().addAll(nameText.get(i), responseText.get(i));
}
try {
mainWindowController.getImage1().setImage(im);
} catch (Exception e) {
mainWindowController.getImage1().setImage(new Image("resources/icons/close_black_2048x2048.png"));
LOGGER.error(e);
}
mainWindowController.getImage1().setImage(im);
} catch (SQLException e) {
LOGGER.error("Ups! an error occured!", e);
}
}
// removes the ending
private String cutOffEnd(String str) {
if (str == null) return null;
int pos = str.lastIndexOf(".");
if (pos == -1) return str;
return str.substring(0, pos);
}
}