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<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="fr"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>MusicHub.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">spoteezer</a> > <a href="index.source.html" class="el_package">musichub.business</a> > <span class="el_source">MusicHub.java</span></div><h1>MusicHub.java</h1><pre class="source lang-java linenums">package musichub.business;
import musichub.util.XMLHandler;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.IOException;
import java.util.*;
<span class="nc" id="L14">class SortByDate implements Comparator<Album> {</span>
public int compare(Album a1, Album a2) {
<span class="nc" id="L16"> return a1.getDate().compareTo(a2.getDate());</span>
}
}
<span class="nc" id="L20">class SortByGenre implements Comparator<Song> {</span>
public int compare(Song s1, Song s2) {
<span class="nc" id="L22"> return s1.getGenre().compareTo(s2.getGenre());</span>
}
}
<span class="nc" id="L26">class SortByAuthor implements Comparator<AudioElement> {</span>
public int compare(AudioElement e1, AudioElement e2) {
<span class="nc" id="L28"> return e1.getArtist().compareTo(e2.getArtist());</span>
}
}
public class MusicHub {
<span class="nc" id="L33"> public static final String DIR = System.getProperty("user.dir");</span>
<span class="nc" id="L34"> public static final String ALBUMS_FILE_PATH = DIR + "/files/albums.xml";</span>
<span class="nc" id="L35"> public static final String PLAYLISTS_FILE_PATH = DIR + "/files/playlists.xml";</span>
<span class="nc" id="L36"> public static final String ELEMENTS_FILE_PATH = DIR + "/files/elements.xml";</span>
private final List<Album> albums;
private final List<PlayList> playlists;
private final List<AudioElement> elements;
<span class="nc" id="L40"> private final XMLHandler xmlHandler = new XMLHandler();</span>
<span class="nc" id="L42"> public MusicHub() {</span>
<span class="nc" id="L43"> albums = new LinkedList<>();</span>
<span class="nc" id="L44"> playlists = new LinkedList<>();</span>
<span class="nc" id="L45"> elements = new LinkedList<>();</span>
<span class="nc" id="L46"> this.loadElements();</span>
<span class="nc" id="L47"> this.loadAlbums();</span>
<span class="nc" id="L48"> this.loadPlaylists();</span>
<span class="nc" id="L49"> }</span>
public void addElement(AudioElement element) {
<span class="nc" id="L52"> elements.add(element);</span>
<span class="nc" id="L53"> }</span>
public void addAlbum(Album album) {
<span class="nc" id="L56"> albums.add(album);</span>
<span class="nc" id="L57"> }</span>
public void addPlaylist(PlayList playlist) {
<span class="nc" id="L60"> playlists.add(playlist);</span>
<span class="nc" id="L61"> }</span>
public void deletePlayList(String playListTitle) throws NoPlayListFoundException {
<span class="nc" id="L65"> PlayList thePlayList = null;</span>
<span class="nc" id="L66"> boolean result = false;</span>
<span class="nc bnc" id="L67" title="All 2 branches missed."> for (PlayList pl : playlists) {</span>
<span class="nc bnc" id="L68" title="All 2 branches missed."> if (pl.getTitle().equalsIgnoreCase(playListTitle)) {</span>
<span class="nc" id="L69"> thePlayList = pl;</span>
<span class="nc" id="L70"> break;</span>
}
<span class="nc" id="L72"> }</span>
<span class="nc bnc" id="L74" title="All 2 branches missed."> if (thePlayList != null)</span>
<span class="nc" id="L75"> result = playlists.remove(thePlayList);</span>
<span class="nc bnc" id="L76" title="All 2 branches missed."> if (!result) throw new NoPlayListFoundException("Playlist " + playListTitle + " not found!");</span>
<span class="nc" id="L77"> }</span>
public Iterator<Album> albums() {
<span class="nc" id="L80"> return albums.listIterator();</span>
}
public Iterator<PlayList> playlists() {
<span class="nc" id="L84"> return playlists.listIterator();</span>
}
public Iterator<AudioElement> elements() {
<span class="nc" id="L88"> return elements.listIterator();</span>
}
public String getAlbumsTitlesSortedByDate() {
<span class="nc" id="L92"> StringBuilder titleList = new StringBuilder();</span>
<span class="nc" id="L93"> albums.sort(new SortByDate());</span>
<span class="nc bnc" id="L94" title="All 2 branches missed."> for (Album al : albums)</span>
<span class="nc" id="L95"> titleList.append(al.getTitle()).append("\n");</span>
<span class="nc" id="L96"> return titleList.toString();</span>
}
public String getAudiobooksTitlesSortedByAuthor() {
<span class="nc" id="L100"> StringBuilder titleList = new StringBuilder();</span>
<span class="nc" id="L101"> List<AudioElement> audioBookList = new ArrayList<>();</span>
<span class="nc bnc" id="L102" title="All 2 branches missed."> for (AudioElement ae : elements)</span>
<span class="nc bnc" id="L103" title="All 2 branches missed."> if (ae instanceof AudioBook)</span>
<span class="nc" id="L104"> audioBookList.add(ae);</span>
<span class="nc" id="L105"> audioBookList.sort(new SortByAuthor());</span>
<span class="nc bnc" id="L106" title="All 2 branches missed."> for (AudioElement ab : audioBookList)</span>
<span class="nc" id="L107"> titleList.append(ab.getArtist()).append("\n");</span>
<span class="nc" id="L108"> return titleList.toString();</span>
}
public List<AudioElement> getAlbumSongs(String albumTitle) throws NoAlbumFoundException {
<span class="nc" id="L112"> Album theAlbum = null;</span>
<span class="nc" id="L113"> ArrayList<AudioElement> songsInAlbum = new ArrayList<>();</span>
<span class="nc bnc" id="L114" title="All 2 branches missed."> for (Album al : albums) {</span>
<span class="nc bnc" id="L115" title="All 2 branches missed."> if (al.getTitle().equalsIgnoreCase(albumTitle)) {</span>
<span class="nc" id="L116"> theAlbum = al;</span>
<span class="nc" id="L117"> break;</span>
}
<span class="nc" id="L119"> }</span>
<span class="nc bnc" id="L120" title="All 2 branches missed."> if (theAlbum == null) throw new NoAlbumFoundException("No album with this title in the MusicHub!");</span>
<span class="nc" id="L122"> List<UUID> songIDs = theAlbum.getSongs();</span>
<span class="nc bnc" id="L123" title="All 2 branches missed."> for (UUID id : songIDs)</span>
<span class="nc bnc" id="L124" title="All 2 branches missed."> for (AudioElement el : elements) {</span>
<span class="nc bnc" id="L125" title="All 2 branches missed."> if (el instanceof Song) {</span>
<span class="nc bnc" id="L126" title="All 2 branches missed."> if (el.getUUID().equals(id)) songsInAlbum.add(el);</span>
}
<span class="nc" id="L128"> }</span>
<span class="nc" id="L129"> return songsInAlbum;</span>
}
public List<Song> getAlbumSongsSortedByGenre(String albumTitle) throws NoAlbumFoundException {
<span class="nc" id="L134"> Album theAlbum = null;</span>
<span class="nc" id="L135"> ArrayList<Song> songsInAlbum = new ArrayList<>();</span>
<span class="nc bnc" id="L136" title="All 2 branches missed."> for (Album al : albums) {</span>
<span class="nc bnc" id="L137" title="All 2 branches missed."> if (al.getTitle().equalsIgnoreCase(albumTitle)) {</span>
<span class="nc" id="L138"> theAlbum = al;</span>
<span class="nc" id="L139"> break;</span>
}
<span class="nc" id="L141"> }</span>
<span class="nc bnc" id="L142" title="All 2 branches missed."> if (theAlbum == null) throw new NoAlbumFoundException("No album with this title in the MusicHub!");</span>
<span class="nc" id="L144"> List<UUID> songIDs = theAlbum.getSongs();</span>
<span class="nc bnc" id="L145" title="All 2 branches missed."> for (UUID id : songIDs)</span>
<span class="nc bnc" id="L146" title="All 2 branches missed."> for (AudioElement el : elements) {</span>
<span class="nc bnc" id="L147" title="All 2 branches missed."> if (el instanceof Song) {</span>
<span class="nc bnc" id="L148" title="All 2 branches missed."> if (el.getUUID().equals(id)) songsInAlbum.add((Song) el);</span>
}
<span class="nc" id="L150"> }</span>
<span class="nc" id="L151"> songsInAlbum.sort(new SortByGenre());</span>
<span class="nc" id="L152"> return songsInAlbum;</span>
}
public void addElementToAlbum(String elementTitle, String albumTitle) throws NoAlbumFoundException, NoElementFoundException {
<span class="nc" id="L157"> Album theAlbum = null;</span>
int i;
<span class="nc" id="L159"> boolean found = false;</span>
<span class="nc bnc" id="L160" title="All 2 branches missed."> for (i = 0; i < albums.size(); i++) {</span>
<span class="nc bnc" id="L161" title="All 2 branches missed."> if (albums.get(i).getTitle().equalsIgnoreCase(albumTitle)) {</span>
<span class="nc" id="L162"> theAlbum = albums.get(i);</span>
<span class="nc" id="L163"> found = true;</span>
<span class="nc" id="L164"> break;</span>
}
}
<span class="nc bnc" id="L168" title="All 2 branches missed."> if (found) {</span>
<span class="nc" id="L169"> AudioElement theElement = null;</span>
<span class="nc bnc" id="L170" title="All 2 branches missed."> for (AudioElement ae : elements) {</span>
<span class="nc bnc" id="L171" title="All 2 branches missed."> if (ae.getTitle().equalsIgnoreCase(elementTitle)) {</span>
<span class="nc" id="L172"> theElement = ae;</span>
<span class="nc" id="L173"> break;</span>
}
<span class="nc" id="L175"> }</span>
<span class="nc bnc" id="L176" title="All 2 branches missed."> if (theElement != null) {</span>
<span class="nc" id="L177"> theAlbum.addSong(theElement.getUUID());</span>
//replace the album in the list
<span class="nc" id="L179"> albums.set(i, theAlbum);</span>
<span class="nc" id="L180"> } else throw new NoElementFoundException("Element " + elementTitle + " not found!");</span>
<span class="nc" id="L181"> } else throw new NoAlbumFoundException("Album " + albumTitle + " not found!");</span>
<span class="nc" id="L183"> }</span>
public void addElementToPlayList(String elementTitle, String playListTitle) throws NoPlayListFoundException, NoElementFoundException {
<span class="nc" id="L186"> PlayList thePlaylist = null;</span>
int i;
<span class="nc" id="L188"> boolean found = false;</span>
<span class="nc bnc" id="L190" title="All 2 branches missed."> for (i = 0; i < playlists.size(); i++) {</span>
<span class="nc bnc" id="L191" title="All 2 branches missed."> if (playlists.get(i).getTitle().equalsIgnoreCase(playListTitle)) {</span>
<span class="nc" id="L192"> thePlaylist = playlists.get(i);</span>
<span class="nc" id="L193"> found = true;</span>
<span class="nc" id="L194"> break;</span>
}
}
<span class="nc bnc" id="L198" title="All 2 branches missed."> if (found) {</span>
<span class="nc" id="L199"> AudioElement theElement = null;</span>
<span class="nc bnc" id="L200" title="All 2 branches missed."> for (AudioElement ae : elements) {</span>
<span class="nc bnc" id="L201" title="All 2 branches missed."> if (ae.getTitle().equalsIgnoreCase(elementTitle)) {</span>
<span class="nc" id="L202"> theElement = ae;</span>
<span class="nc" id="L203"> break;</span>
}
<span class="nc" id="L205"> }</span>
<span class="nc bnc" id="L206" title="All 2 branches missed."> if (theElement != null) {</span>
<span class="nc" id="L207"> thePlaylist.addElement(theElement.getUUID());</span>
//replace the album in the list
<span class="nc" id="L209"> playlists.set(i, thePlaylist);</span>
<span class="nc" id="L210"> } else throw new NoElementFoundException("Element " + elementTitle + " not found!");</span>
<span class="nc" id="L212"> } else throw new NoPlayListFoundException("Playlist " + playListTitle + " not found!");</span>
<span class="nc" id="L214"> }</span>
private void loadAlbums() {
<span class="nc" id="L217"> NodeList albumNodes = xmlHandler.parseXMLFile(ALBUMS_FILE_PATH);</span>
<span class="nc bnc" id="L218" title="All 2 branches missed."> if (albumNodes == null) return;</span>
<span class="nc bnc" id="L220" title="All 2 branches missed."> for (int i = 0; i < albumNodes.getLength(); i++) {</span>
<span class="nc bnc" id="L221" title="All 2 branches missed."> if (albumNodes.item(i).getNodeType() == Node.ELEMENT_NODE) {</span>
<span class="nc" id="L222"> Element albumElement = (Element) albumNodes.item(i);</span>
<span class="nc bnc" id="L223" title="All 2 branches missed."> if (albumElement.getNodeName().equals("album")) {</span>
try {
<span class="nc" id="L225"> this.addAlbum(new Album(albumElement));</span>
<span class="nc" id="L226"> } catch (Exception ex) {</span>
<span class="nc" id="L227"> System.out.println("Something is wrong with the XML album element");</span>
<span class="nc" id="L228"> }</span>
}
}
}
<span class="nc" id="L232"> }</span>
private void loadPlaylists() {
<span class="nc" id="L235"> NodeList playlistNodes = xmlHandler.parseXMLFile(PLAYLISTS_FILE_PATH);</span>
<span class="nc bnc" id="L236" title="All 2 branches missed."> if (playlistNodes == null) return;</span>
<span class="nc bnc" id="L238" title="All 2 branches missed."> for (int i = 0; i < playlistNodes.getLength(); i++) {</span>
<span class="nc bnc" id="L239" title="All 2 branches missed."> if (playlistNodes.item(i).getNodeType() == Node.ELEMENT_NODE) {</span>
<span class="nc" id="L240"> Element playlistElement = (Element) playlistNodes.item(i);</span>
<span class="nc bnc" id="L241" title="All 2 branches missed."> if (playlistElement.getNodeName().equals("playlist")) {</span>
try {
<span class="nc" id="L243"> this.addPlaylist(new PlayList(playlistElement));</span>
<span class="nc" id="L244"> } catch (Exception ex) {</span>
<span class="nc" id="L245"> System.out.println("Something is wrong with the XML playlist element");</span>
<span class="nc" id="L246"> }</span>
}
}
}
<span class="nc" id="L250"> }</span>
private void loadElements() {
<span class="nc" id="L253"> NodeList audioelementsNodes = xmlHandler.parseXMLFile(ELEMENTS_FILE_PATH);</span>
<span class="nc bnc" id="L254" title="All 2 branches missed."> if (audioelementsNodes == null) return;</span>
<span class="nc bnc" id="L256" title="All 2 branches missed."> for (int i = 0; i < audioelementsNodes.getLength(); i++) {</span>
<span class="nc bnc" id="L257" title="All 2 branches missed."> if (audioelementsNodes.item(i).getNodeType() == Node.ELEMENT_NODE) {</span>
<span class="nc" id="L258"> Element audioElement = (Element) audioelementsNodes.item(i);</span>
<span class="nc bnc" id="L259" title="All 2 branches missed."> if (audioElement.getNodeName().equals("song")) {</span>
try {
<span class="nc" id="L261"> AudioElement newSong = new Song(audioElement);</span>
<span class="nc" id="L262"> this.addElement(newSong);</span>
<span class="nc" id="L263"> } catch (Exception ex) {</span>
<span class="nc" id="L264"> System.out.println("Something is wrong with the XML song element");</span>
<span class="nc" id="L265"> }</span>
}
<span class="nc bnc" id="L267" title="All 2 branches missed."> if (audioElement.getNodeName().equals("audiobook")) {</span>
try {
<span class="nc" id="L269"> AudioElement newAudioBook = new AudioBook(audioElement);</span>
<span class="nc" id="L270"> this.addElement(newAudioBook);</span>
<span class="nc" id="L271"> } catch (Exception ex) {</span>
<span class="nc" id="L272"> System.out.println("Something is wrong with the XML audiobook element");</span>
<span class="nc" id="L273"> }</span>
}
}
}
<span class="nc" id="L277"> }</span>
public void saveAlbums() {
<span class="nc" id="L281"> Document document = xmlHandler.createXMLDocument();</span>
<span class="nc bnc" id="L282" title="All 2 branches missed."> if (document == null) return;</span>
// root element
<span class="nc" id="L285"> Element root = document.createElement("albums");</span>
<span class="nc" id="L286"> document.appendChild(root);</span>
//save all albums
<span class="nc bnc" id="L289" title="All 2 branches missed."> for (Iterator<Album> albumsIter = this.albums(); albumsIter.hasNext(); ) {</span>
<span class="nc" id="L290"> Album currentAlbum = albumsIter.next();</span>
<span class="nc" id="L291"> currentAlbum.createXMLElement(document, root);</span>
<span class="nc" id="L292"> }</span>
<span class="nc" id="L293"> xmlHandler.createXMLFile(document, ALBUMS_FILE_PATH);</span>
<span class="nc" id="L294"> }</span>
public void savePlayLists() {
<span class="nc" id="L297"> Document document = xmlHandler.createXMLDocument();</span>
<span class="nc bnc" id="L298" title="All 2 branches missed."> if (document == null) return;</span>
// root element
<span class="nc" id="L301"> Element root = document.createElement("playlists");</span>
<span class="nc" id="L302"> document.appendChild(root);</span>
//save all playlists
<span class="nc bnc" id="L305" title="All 2 branches missed."> for (Iterator<PlayList> playlistsIter = this.playlists(); playlistsIter.hasNext(); ) {</span>
<span class="nc" id="L306"> PlayList currentPlayList = playlistsIter.next();</span>
<span class="nc" id="L307"> currentPlayList.createXMLElement(document, root);</span>
<span class="nc" id="L308"> }</span>
<span class="nc" id="L309"> xmlHandler.createXMLFile(document, PLAYLISTS_FILE_PATH);</span>
<span class="nc" id="L310"> }</span>
public void saveElements() {
<span class="nc" id="L313"> Document document = xmlHandler.createXMLDocument();</span>
<span class="nc bnc" id="L314" title="All 2 branches missed."> if (document == null) return;</span>
// root element
<span class="nc" id="L317"> Element root = document.createElement("elements");</span>
<span class="nc" id="L318"> document.appendChild(root);</span>
//save all AudioElements
<span class="nc bnc" id="L321" title="All 2 branches missed."> for (AudioElement currentElement : elements) {</span>
<span class="nc bnc" id="L323" title="All 2 branches missed."> if (currentElement instanceof Song) {</span>
<span class="nc" id="L324"> currentElement.createXMLElement(document, root);</span>
}
<span class="nc bnc" id="L326" title="All 2 branches missed."> if (currentElement instanceof AudioBook) {</span>
<span class="nc" id="L327"> currentElement.createXMLElement(document, root);</span>
}
<span class="nc" id="L329"> }</span>
<span class="nc" id="L330"> xmlHandler.createXMLFile(document, ELEMENTS_FILE_PATH);</span>
<span class="nc" id="L331"> }</span>
public void getAudioElement(List<AudioElement> audios, String elementTitle) throws NoAlbumFoundException, UnsupportedAudioFileException, IOException, LineUnavailableException {
<span class="nc bnc" id="L334" title="All 2 branches missed."> for (AudioElement el : audios) {</span>
<span class="nc bnc" id="L335" title="All 2 branches missed."> if (el.getTitle().equalsIgnoreCase(elementTitle)) {</span>
<span class="nc" id="L336"> el.manageAudioElement();</span>
}
<span class="nc" id="L338"> }</span>
<span class="nc" id="L340"> }</span>
public void searchAudioElement() throws UnsupportedAudioFileException, NoAlbumFoundException, LineUnavailableException, IOException, NoElementFoundException {
<span class="nc" id="L343"> Scanner scanner = new Scanner(System.in);</span>
<span class="nc" id="L344"> System.out.println("Entrez le titre ou l'artiste de la musique que vous souhaitez chercher dans la base de données");</span>
<span class="nc" id="L345"> String word = scanner.next().toLowerCase(Locale.ROOT);</span>
<span class="nc" id="L346"> List<AudioElement> searchResult = new ArrayList<>();</span>
<span class="nc bnc" id="L347" title="All 2 branches missed."> for(AudioElement el : elements){</span>
<span class="nc bnc" id="L348" title="All 4 branches missed."> if(el.getTitle().toLowerCase(Locale.ROOT).contains(word) || el.getArtist().toLowerCase(Locale.ROOT).contains(word)){</span>
<span class="nc" id="L349"> searchResult.add(el);</span>
<span class="nc" id="L350"> System.out.println(el);</span>
}
<span class="nc" id="L352"> }</span>
<span class="nc bnc" id="L354" title="All 2 branches missed."> if (searchResult.isEmpty()) {</span>
<span class="nc" id="L355"> throw new NoElementFoundException("Any result for your search");</span>
}
<span class="nc bnc" id="L357" title="All 2 branches missed."> if (searchResult.size() == 1) {</span>
<span class="nc" id="L358"> this.getAudioElement(searchResult, searchResult.get(0).getTitle());</span>
}
<span class="nc" id="L360"> }</span>
/**
* Method getting a list of playlists
*
* @return a list of playlist titles
* @author Anthony BOULANT
*/
public String getPlayListsTitles() {
<span class="nc" id="L369"> StringBuilder titleList = new StringBuilder();</span>
<span class="nc bnc" id="L371" title="All 2 branches missed."> for (PlayList pl : playlists)</span>
<span class="nc" id="L372"> titleList.append(pl.getTitle()).append("\n");</span>
<span class="nc" id="L373"> return titleList.toString();</span>
}
/**
* Method checking the songs contained in a chosen playlist and returning them if found.
*
* @param playListTitle the title of a (chosen) playlist
* @return a list of songs from a playlist
* @throws NoPlayListFoundException if the chosen playlist doesn't exist
* @author Anthony BOULANT
*/
public List<AudioElement> getPlayListSongs(String playListTitle) throws NoPlayListFoundException {
<span class="nc" id="L385"> PlayList thePlayList = null;</span>
<span class="nc" id="L386"> ArrayList<AudioElement> songsInPlayList = new ArrayList<>();</span>
<span class="nc bnc" id="L387" title="All 2 branches missed."> for (PlayList pl : playlists) {</span>
<span class="nc bnc" id="L388" title="All 2 branches missed."> if (pl.getTitle().equalsIgnoreCase(playListTitle)) {</span>
<span class="nc" id="L389"> thePlayList = pl;</span>
<span class="nc" id="L390"> break;</span>
}
<span class="nc" id="L392"> }</span>
<span class="nc bnc" id="L393" title="All 2 branches missed."> if (thePlayList == null) throw new NoPlayListFoundException("No playlist with this title in the MusicHub!");</span>
<span class="nc" id="L395"> List<UUID> songIDs = thePlayList.getElements();</span>
<span class="nc bnc" id="L396" title="All 2 branches missed."> for (UUID id : songIDs)</span>
<span class="nc bnc" id="L397" title="All 2 branches missed."> for (AudioElement el : elements) {</span>
<span class="nc bnc" id="L398" title="All 2 branches missed."> if (el instanceof Song) {</span>
<span class="nc bnc" id="L399" title="All 2 branches missed."> if (el.getUUID().equals(id)) songsInPlayList.add(el);</span>
}
<span class="nc" id="L401"> }</span>
<span class="nc" id="L402"> return songsInPlayList;</span>
}
}
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