<?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 java.io.IOException;
import java.util.*;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
<span class="nc" id="L15">class SortByDate implements Comparator<Album> {</span>
public int compare(Album a1, Album a2) {
<span class="nc" id="L17"> return a1.getDate().compareTo(a2.getDate());</span>
}
}
<span class="nc" id="L21">class SortByGenre implements Comparator<Song> {</span>
public int compare(Song s1, Song s2) {
<span class="nc" id="L23"> return s1.getGenre().compareTo(s2.getGenre());</span>
}
}
<span class="nc" id="L27">class SortByAuthor implements Comparator<AudioElement> {</span>
public int compare(AudioElement e1, AudioElement e2) {
<span class="nc" id="L29"> return e1.getArtist().compareTo(e2.getArtist());</span>
}
}
public class MusicHub {
<span class="nc" id="L34"> public static final String DIR = System.getProperty("user.dir");</span>
<span class="nc" id="L35"> public static final String ALBUMS_FILE_PATH = DIR + "/files/albums.xml";</span>
<span class="nc" id="L36"> public static final String PLAYLISTS_FILE_PATH = DIR + "/files/playlists.xml";</span>
<span class="nc" id="L37"> 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="L41"> private final XMLHandler xmlHandler = new XMLHandler();</span>
<span class="nc" id="L43"> public MusicHub() {</span>
<span class="nc" id="L44"> albums = new LinkedList<>();</span>
<span class="nc" id="L45"> playlists = new LinkedList<>();</span>
<span class="nc" id="L46"> elements = new LinkedList<>();</span>
<span class="nc" id="L47"> this.loadElements();</span>
<span class="nc" id="L48"> this.loadAlbums();</span>
<span class="nc" id="L49"> this.loadPlaylists();</span>
<span class="nc" id="L50"> }</span>
public void addElement(AudioElement element) {
<span class="nc" id="L53"> elements.add(element);</span>
<span class="nc" id="L54"> }</span>
public void addAlbum(Album album) {
<span class="nc" id="L57"> albums.add(album);</span>
<span class="nc" id="L58"> }</span>
public void addPlaylist(PlayList playlist) {
<span class="nc" id="L61"> playlists.add(playlist);</span>
<span class="nc" id="L62"> }</span>
public void deletePlayList(String playListTitle) throws NoPlayListFoundException {
<span class="nc" id="L66"> PlayList thePlayList = null;</span>
<span class="nc" id="L67"> boolean result = false;</span>
<span class="nc bnc" id="L68" title="All 2 branches missed."> for (PlayList pl : playlists) {</span>
<span class="nc bnc" id="L69" title="All 2 branches missed."> if (pl.getTitle().equalsIgnoreCase(playListTitle)) {</span>
<span class="nc" id="L70"> thePlayList = pl;</span>
<span class="nc" id="L71"> break;</span>
}
<span class="nc" id="L73"> }</span>
<span class="nc bnc" id="L75" title="All 2 branches missed."> if (thePlayList != null)</span>
<span class="nc" id="L76"> result = playlists.remove(thePlayList);</span>
<span class="nc bnc" id="L77" title="All 2 branches missed."> if (!result) throw new NoPlayListFoundException("Playlist " + playListTitle + " not found!");</span>
<span class="nc" id="L78"> }</span>
public Iterator<Album> albums() {
<span class="nc" id="L81"> return albums.listIterator();</span>
}
public Iterator<PlayList> playlists() {
<span class="nc" id="L85"> return playlists.listIterator();</span>
}
public Iterator<AudioElement> elements() {
<span class="nc" id="L89"> return elements.listIterator();</span>
}
public String getAlbumsTitlesSortedByDate() {
<span class="nc" id="L93"> StringBuilder titleList = new StringBuilder();</span>
<span class="nc" id="L94"> albums.sort(new SortByDate());</span>
<span class="nc bnc" id="L95" title="All 2 branches missed."> for (Album al : albums)</span>
<span class="nc" id="L96"> titleList.append(al.getTitle()).append("\n");</span>
<span class="nc" id="L97"> return titleList.toString();</span>
}
public String getAudiobooksTitlesSortedByAuthor() {
<span class="nc" id="L101"> StringBuilder titleList = new StringBuilder();</span>
<span class="nc" id="L102"> List<AudioElement> audioBookList = new ArrayList<>();</span>
<span class="nc bnc" id="L103" title="All 2 branches missed."> for (AudioElement ae : elements)</span>
<span class="nc bnc" id="L104" title="All 2 branches missed."> if (ae instanceof AudioBook)</span>
<span class="nc" id="L105"> audioBookList.add(ae);</span>
<span class="nc" id="L106"> audioBookList.sort(new SortByAuthor());</span>
<span class="nc bnc" id="L107" title="All 2 branches missed."> for (AudioElement ab : audioBookList)</span>
<span class="nc" id="L108"> titleList.append(ab.getArtist()).append("\n");</span>
<span class="nc" id="L109"> return titleList.toString();</span>
}
public List<AudioElement> getAlbumSongs(String albumTitle) throws NoAlbumFoundException {
<span class="nc" id="L113"> Album theAlbum = null;</span>
<span class="nc" id="L114"> ArrayList<AudioElement> songsInAlbum = new ArrayList<>();</span>
<span class="nc bnc" id="L115" title="All 2 branches missed."> for (Album al : albums) {</span>
<span class="nc bnc" id="L116" title="All 2 branches missed."> if (al.getTitle().equalsIgnoreCase(albumTitle)) {</span>
<span class="nc" id="L117"> theAlbum = al;</span>
<span class="nc" id="L118"> break;</span>
}
<span class="nc" id="L120"> }</span>
<span class="nc bnc" id="L121" title="All 2 branches missed."> if (theAlbum == null) throw new NoAlbumFoundException("No album with this title in the MusicHub!");</span>
<span class="nc" id="L123"> List<UUID> songIDs = theAlbum.getSongs();</span>
<span class="nc bnc" id="L124" title="All 2 branches missed."> for (UUID id : songIDs)</span>
<span class="nc bnc" id="L125" title="All 2 branches missed."> for (AudioElement el : elements) {</span>
<span class="nc bnc" id="L126" title="All 2 branches missed."> if (el instanceof Song) {</span>
<span class="nc bnc" id="L127" title="All 2 branches missed."> if (el.getUUID().equals(id)) songsInAlbum.add(el);</span>
}
<span class="nc" id="L129"> }</span>
<span class="nc" id="L130"> return songsInAlbum;</span>
}
public List<Song> getAlbumSongsSortedByGenre(String albumTitle) throws NoAlbumFoundException {
<span class="nc" id="L135"> Album theAlbum = null;</span>
<span class="nc" id="L136"> ArrayList<Song> songsInAlbum = new ArrayList<>();</span>
<span class="nc bnc" id="L137" title="All 2 branches missed."> for (Album al : albums) {</span>
<span class="nc bnc" id="L138" title="All 2 branches missed."> if (al.getTitle().equalsIgnoreCase(albumTitle)) {</span>
<span class="nc" id="L139"> theAlbum = al;</span>
<span class="nc" id="L140"> break;</span>
}
<span class="nc" id="L142"> }</span>
<span class="nc bnc" id="L143" title="All 2 branches missed."> if (theAlbum == null) throw new NoAlbumFoundException("No album with this title in the MusicHub!");</span>
<span class="nc" id="L145"> List<UUID> songIDs = theAlbum.getSongs();</span>
<span class="nc bnc" id="L146" title="All 2 branches missed."> for (UUID id : songIDs)</span>
<span class="nc bnc" id="L147" title="All 2 branches missed."> for (AudioElement el : elements) {</span>
<span class="nc bnc" id="L148" title="All 2 branches missed."> if (el instanceof Song) {</span>
<span class="nc bnc" id="L149" title="All 2 branches missed."> if (el.getUUID().equals(id)) songsInAlbum.add((Song) el);</span>
}
<span class="nc" id="L151"> }</span>
<span class="nc" id="L152"> songsInAlbum.sort(new SortByGenre());</span>
<span class="nc" id="L153"> return songsInAlbum;</span>
}
public void addElementToAlbum(String elementTitle, String albumTitle) throws NoAlbumFoundException, NoElementFoundException {
<span class="nc" id="L158"> Album theAlbum = null;</span>
int i;
<span class="nc" id="L160"> boolean found = false;</span>
<span class="nc bnc" id="L161" title="All 2 branches missed."> for (i = 0; i < albums.size(); i++) {</span>
<span class="nc bnc" id="L162" title="All 2 branches missed."> if (albums.get(i).getTitle().equalsIgnoreCase(albumTitle)) {</span>
<span class="nc" id="L163"> theAlbum = albums.get(i);</span>
<span class="nc" id="L164"> found = true;</span>
<span class="nc" id="L165"> break;</span>
}
}
<span class="nc bnc" id="L169" title="All 2 branches missed."> if (found) {</span>
<span class="nc" id="L170"> AudioElement theElement = null;</span>
<span class="nc bnc" id="L171" title="All 2 branches missed."> for (AudioElement ae : elements) {</span>
<span class="nc bnc" id="L172" title="All 2 branches missed."> if (ae.getTitle().equalsIgnoreCase(elementTitle)) {</span>
<span class="nc" id="L173"> theElement = ae;</span>
<span class="nc" id="L174"> break;</span>
}
<span class="nc" id="L176"> }</span>
<span class="nc bnc" id="L177" title="All 2 branches missed."> if (theElement != null) {</span>
<span class="nc" id="L178"> theAlbum.addSong(theElement.getUUID());</span>
//replace the album in the list
<span class="nc" id="L180"> albums.set(i, theAlbum);</span>
<span class="nc" id="L181"> } else throw new NoElementFoundException("Element " + elementTitle + " not found!");</span>
<span class="nc" id="L182"> } else throw new NoAlbumFoundException("Album " + albumTitle + " not found!");</span>
<span class="nc" id="L184"> }</span>
public void addElementToPlayList(String elementTitle, String playListTitle) throws NoPlayListFoundException, NoElementFoundException {
<span class="nc" id="L187"> PlayList thePlaylist = null;</span>
int i;
<span class="nc" id="L189"> boolean found = false;</span>
<span class="nc bnc" id="L191" title="All 2 branches missed."> for (i = 0; i < playlists.size(); i++) {</span>
<span class="nc bnc" id="L192" title="All 2 branches missed."> if (playlists.get(i).getTitle().equalsIgnoreCase(playListTitle)) {</span>
<span class="nc" id="L193"> thePlaylist = playlists.get(i);</span>
<span class="nc" id="L194"> found = true;</span>
<span class="nc" id="L195"> break;</span>
}
}
<span class="nc bnc" id="L199" title="All 2 branches missed."> if (found) {</span>
<span class="nc" id="L200"> AudioElement theElement = null;</span>
<span class="nc bnc" id="L201" title="All 2 branches missed."> for (AudioElement ae : elements) {</span>
<span class="nc bnc" id="L202" title="All 2 branches missed."> if (ae.getTitle().equalsIgnoreCase(elementTitle)) {</span>
<span class="nc" id="L203"> theElement = ae;</span>
<span class="nc" id="L204"> break;</span>
}
<span class="nc" id="L206"> }</span>
<span class="nc bnc" id="L207" title="All 2 branches missed."> if (theElement != null) {</span>
<span class="nc" id="L208"> thePlaylist.addElement(theElement.getUUID());</span>
//replace the album in the list
<span class="nc" id="L210"> playlists.set(i, thePlaylist);</span>
<span class="nc" id="L211"> } else throw new NoElementFoundException("Element " + elementTitle + " not found!");</span>
<span class="nc" id="L213"> } else throw new NoPlayListFoundException("Playlist " + playListTitle + " not found!");</span>
<span class="nc" id="L215"> }</span>
private void loadAlbums() {
<span class="nc" id="L218"> NodeList albumNodes = xmlHandler.parseXMLFile(ALBUMS_FILE_PATH);</span>
<span class="nc bnc" id="L219" title="All 2 branches missed."> if (albumNodes == null) return;</span>
<span class="nc bnc" id="L221" title="All 2 branches missed."> for (int i = 0; i < albumNodes.getLength(); i++) {</span>
<span class="nc bnc" id="L222" title="All 2 branches missed."> if (albumNodes.item(i).getNodeType() == Node.ELEMENT_NODE) {</span>
<span class="nc" id="L223"> Element albumElement = (Element) albumNodes.item(i);</span>
<span class="nc bnc" id="L224" title="All 2 branches missed."> if (albumElement.getNodeName().equals("album")) {</span>
try {
<span class="nc" id="L226"> this.addAlbum(new Album(albumElement));</span>
<span class="nc" id="L227"> } catch (Exception ex) {</span>
<span class="nc" id="L228"> System.out.println("Something is wrong with the XML album element");</span>
<span class="nc" id="L229"> }</span>
}
}
}
<span class="nc" id="L233"> }</span>
private void loadPlaylists() {
<span class="nc" id="L236"> NodeList playlistNodes = xmlHandler.parseXMLFile(PLAYLISTS_FILE_PATH);</span>
<span class="nc bnc" id="L237" title="All 2 branches missed."> if (playlistNodes == null) return;</span>
<span class="nc bnc" id="L239" title="All 2 branches missed."> for (int i = 0; i < playlistNodes.getLength(); i++) {</span>
<span class="nc bnc" id="L240" title="All 2 branches missed."> if (playlistNodes.item(i).getNodeType() == Node.ELEMENT_NODE) {</span>
<span class="nc" id="L241"> Element playlistElement = (Element) playlistNodes.item(i);</span>
<span class="nc bnc" id="L242" title="All 2 branches missed."> if (playlistElement.getNodeName().equals("playlist")) {</span>
try {
<span class="nc" id="L244"> this.addPlaylist(new PlayList(playlistElement));</span>
<span class="nc" id="L245"> } catch (Exception ex) {</span>
<span class="nc" id="L246"> System.out.println("Something is wrong with the XML playlist element");</span>
<span class="nc" id="L247"> }</span>
}
}
}
<span class="nc" id="L251"> }</span>
private void loadElements() {
<span class="nc" id="L254"> NodeList audioelementsNodes = xmlHandler.parseXMLFile(ELEMENTS_FILE_PATH);</span>
<span class="nc bnc" id="L255" title="All 2 branches missed."> if (audioelementsNodes == null) return;</span>
<span class="nc bnc" id="L257" title="All 2 branches missed."> for (int i = 0; i < audioelementsNodes.getLength(); i++) {</span>
<span class="nc bnc" id="L258" title="All 2 branches missed."> if (audioelementsNodes.item(i).getNodeType() == Node.ELEMENT_NODE) {</span>
<span class="nc" id="L259"> Element audioElement = (Element) audioelementsNodes.item(i);</span>
<span class="nc bnc" id="L260" title="All 2 branches missed."> if (audioElement.getNodeName().equals("song")) {</span>
try {
<span class="nc" id="L262"> AudioElement newSong = new Song(audioElement);</span>
<span class="nc" id="L263"> this.addElement(newSong);</span>
<span class="nc" id="L264"> } catch (Exception ex) {</span>
<span class="nc" id="L265"> System.out.println("Something is wrong with the XML song element");</span>
<span class="nc" id="L266"> }</span>
}
<span class="nc bnc" id="L268" title="All 2 branches missed."> if (audioElement.getNodeName().equals("audiobook")) {</span>
try {
<span class="nc" id="L270"> AudioElement newAudioBook = new AudioBook(audioElement);</span>
<span class="nc" id="L271"> this.addElement(newAudioBook);</span>
<span class="nc" id="L272"> } catch (Exception ex) {</span>
<span class="nc" id="L273"> System.out.println("Something is wrong with the XML audiobook element");</span>
<span class="nc" id="L274"> }</span>
}
}
}
<span class="nc" id="L278"> }</span>
public void saveAlbums() {
<span class="nc" id="L282"> Document document = xmlHandler.createXMLDocument();</span>
<span class="nc bnc" id="L283" title="All 2 branches missed."> if (document == null) return;</span>
// root element
<span class="nc" id="L286"> Element root = document.createElement("albums");</span>
<span class="nc" id="L287"> document.appendChild(root);</span>
//save all albums
<span class="nc bnc" id="L290" title="All 2 branches missed."> for (Iterator<Album> albumsIter = this.albums(); albumsIter.hasNext(); ) {</span>
<span class="nc" id="L291"> Album currentAlbum = albumsIter.next();</span>
<span class="nc" id="L292"> currentAlbum.createXMLElement(document, root);</span>
<span class="nc" id="L293"> }</span>
<span class="nc" id="L294"> xmlHandler.createXMLFile(document, ALBUMS_FILE_PATH);</span>
<span class="nc" id="L295"> }</span>
public void savePlayLists() {
<span class="nc" id="L298"> Document document = xmlHandler.createXMLDocument();</span>
<span class="nc bnc" id="L299" title="All 2 branches missed."> if (document == null) return;</span>
// root element
<span class="nc" id="L302"> Element root = document.createElement("playlists");</span>
<span class="nc" id="L303"> document.appendChild(root);</span>
//save all playlists
<span class="nc bnc" id="L306" title="All 2 branches missed."> for (Iterator<PlayList> playlistsIter = this.playlists(); playlistsIter.hasNext(); ) {</span>
<span class="nc" id="L307"> PlayList currentPlayList = playlistsIter.next();</span>
<span class="nc" id="L308"> currentPlayList.createXMLElement(document, root);</span>
<span class="nc" id="L309"> }</span>
<span class="nc" id="L310"> xmlHandler.createXMLFile(document, PLAYLISTS_FILE_PATH);</span>
<span class="nc" id="L311"> }</span>
public void saveElements() {
<span class="nc" id="L314"> Document document = xmlHandler.createXMLDocument();</span>
<span class="nc bnc" id="L315" title="All 2 branches missed."> if (document == null) return;</span>
// root element
<span class="nc" id="L318"> Element root = document.createElement("elements");</span>
<span class="nc" id="L319"> document.appendChild(root);</span>
//save all AudioElements
<span class="nc bnc" id="L322" title="All 2 branches missed."> for (AudioElement currentElement : elements) {</span>
<span class="nc bnc" id="L324" title="All 2 branches missed."> if (currentElement instanceof Song) {</span>
<span class="nc" id="L325"> currentElement.createXMLElement(document, root);</span>
}
<span class="nc bnc" id="L327" title="All 2 branches missed."> if (currentElement instanceof AudioBook) {</span>
<span class="nc" id="L328"> currentElement.createXMLElement(document, root);</span>
}
<span class="nc" id="L330"> }</span>
<span class="nc" id="L331"> xmlHandler.createXMLFile(document, ELEMENTS_FILE_PATH);</span>
<span class="nc" id="L332"> }</span>
public void getAudioElement(List<AudioElement> audios, String elementTitle) throws NoAlbumFoundException, UnsupportedAudioFileException, IOException, LineUnavailableException {
<span class="nc bnc" id="L335" title="All 2 branches missed."> for (AudioElement el : audios) {</span>
<span class="nc bnc" id="L336" title="All 2 branches missed."> if (el.getTitle().equalsIgnoreCase(elementTitle)) {</span>
<span class="nc" id="L337"> el.manageAudioElement();</span>
}
<span class="nc" id="L339"> }</span>
<span class="nc" id="L341"> }</span>
public void searchAudioElement() throws UnsupportedAudioFileException, NoAlbumFoundException, LineUnavailableException, IOException {
Scanner scanner = new Scanner(System.in);
System.out.println("Entrez le titre ou l'artiste de la musique que vous souhaitez chercher dans la base de données");
String word = scanner.next().toLowerCase(Locale.ROOT);
List<AudioElement> searchResult = new ArrayList<>();
for(AudioElement el : elements){
if(el.getTitle().toLowerCase(Locale.ROOT).contains(word) || el.getArtist().toLowerCase(Locale.ROOT).contains(word)){
searchResult.add(el);
System.out.println(el);
}
}
if(searchResult.isEmpty()){
System.err.println("Aucun résultat pour votre recherche");
}
if (searchResult.size()==1){
this.getAudioElement(searchResult, searchResult.get(0).getTitle());
}
}
}
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