From 65a49c3154822aa808ced07301487162a290fda7 Mon Sep 17 00:00:00 2001 From: Clyhtsuriva Date: Sun, 6 Jun 2021 13:32:56 +0200 Subject: Initial jMusicHubProject --- src/musichub/business/MusicHub.java | 329 ++++++++++++++++++++++++++++++++++++ 1 file changed, 329 insertions(+) create mode 100644 src/musichub/business/MusicHub.java (limited to 'src/musichub/business/MusicHub.java') diff --git a/src/musichub/business/MusicHub.java b/src/musichub/business/MusicHub.java new file mode 100644 index 0000000..4eb09c3 --- /dev/null +++ b/src/musichub/business/MusicHub.java @@ -0,0 +1,329 @@ +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.util.*; + +class SortByDate implements Comparator { + public int compare(Album a1, Album a2) { + return a1.getDate().compareTo(a2.getDate()); + } +} + +class SortByGenre implements Comparator { + public int compare(Song s1, Song s2) { + return s1.getGenre().compareTo(s2.getGenre()); + } +} + +class SortByAuthor implements Comparator { + public int compare(AudioElement e1, AudioElement e2) { + return e1.getArtist().compareTo(e2.getArtist()); + } +} + +public class MusicHub { + public static final String DIR = System.getProperty("user.dir"); + public static final String ALBUMS_FILE_PATH = DIR + "\\files\\albums.xml"; + public static final String PLAYLISTS_FILE_PATH = DIR + "\\files\\playlists.xml"; + public static final String ELEMENTS_FILE_PATH = DIR + "\\files\\elements.xml"; + private final List albums; + private final List playlists; + private final List elements; + private final XMLHandler xmlHandler = new XMLHandler(); + + public MusicHub() { + albums = new LinkedList<>(); + playlists = new LinkedList<>(); + elements = new LinkedList<>(); + this.loadElements(); + this.loadAlbums(); + this.loadPlaylists(); + } + + public void addElement(AudioElement element) { + elements.add(element); + } + + public void addAlbum(Album album) { + albums.add(album); + } + + public void addPlaylist(PlayList playlist) { + playlists.add(playlist); + } + + public void deletePlayList(String playListTitle) throws NoPlayListFoundException { + + PlayList thePlayList = null; + boolean result = false; + for (PlayList pl : playlists) { + if (pl.getTitle().equalsIgnoreCase(playListTitle)) { + thePlayList = pl; + break; + } + } + + if (thePlayList != null) + result = playlists.remove(thePlayList); + if (!result) throw new NoPlayListFoundException("Playlist " + playListTitle + " not found!"); + } + + public Iterator albums() { + return albums.listIterator(); + } + + public Iterator playlists() { + return playlists.listIterator(); + } + + public Iterator elements() { + return elements.listIterator(); + } + + public String getAlbumsTitlesSortedByDate() { + StringBuilder titleList = new StringBuilder(); + albums.sort(new SortByDate()); + for (Album al : albums) + titleList.append(al.getTitle()).append("\n"); + return titleList.toString(); + } + + public String getAudiobooksTitlesSortedByAuthor() { + StringBuilder titleList = new StringBuilder(); + List audioBookList = new ArrayList<>(); + for (AudioElement ae : elements) + if (ae instanceof AudioBook) + audioBookList.add(ae); + audioBookList.sort(new SortByAuthor()); + for (AudioElement ab : audioBookList) + titleList.append(ab.getArtist()).append("\n"); + return titleList.toString(); + } + + public List getAlbumSongs(String albumTitle) throws NoAlbumFoundException { + Album theAlbum = null; + ArrayList songsInAlbum = new ArrayList<>(); + for (Album al : albums) { + if (al.getTitle().equalsIgnoreCase(albumTitle)) { + theAlbum = al; + break; + } + } + if (theAlbum == null) throw new NoAlbumFoundException("No album with this title in the MusicHub!"); + + List songIDs = theAlbum.getSongs(); + for (UUID id : songIDs) + for (AudioElement el : elements) { + if (el instanceof Song) { + if (el.getUUID().equals(id)) songsInAlbum.add(el); + } + } + return songsInAlbum; + + } + + public List getAlbumSongsSortedByGenre(String albumTitle) throws NoAlbumFoundException { + Album theAlbum = null; + ArrayList songsInAlbum = new ArrayList<>(); + for (Album al : albums) { + if (al.getTitle().equalsIgnoreCase(albumTitle)) { + theAlbum = al; + break; + } + } + if (theAlbum == null) throw new NoAlbumFoundException("No album with this title in the MusicHub!"); + + List songIDs = theAlbum.getSongs(); + for (UUID id : songIDs) + for (AudioElement el : elements) { + if (el instanceof Song) { + if (el.getUUID().equals(id)) songsInAlbum.add((Song) el); + } + } + songsInAlbum.sort(new SortByGenre()); + return songsInAlbum; + + } + + public void addElementToAlbum(String elementTitle, String albumTitle) throws NoAlbumFoundException, NoElementFoundException { + Album theAlbum = null; + int i; + boolean found = false; + for (i = 0; i < albums.size(); i++) { + if (albums.get(i).getTitle().equalsIgnoreCase(albumTitle)) { + theAlbum = albums.get(i); + found = true; + break; + } + } + + if (found) { + AudioElement theElement = null; + for (AudioElement ae : elements) { + if (ae.getTitle().equalsIgnoreCase(elementTitle)) { + theElement = ae; + break; + } + } + if (theElement != null) { + theAlbum.addSong(theElement.getUUID()); + //replace the album in the list + albums.set(i, theAlbum); + } else throw new NoElementFoundException("Element " + elementTitle + " not found!"); + } else throw new NoAlbumFoundException("Album " + albumTitle + " not found!"); + + } + + public void addElementToPlayList(String elementTitle, String playListTitle) throws NoPlayListFoundException, NoElementFoundException { + PlayList thePlaylist = null; + int i; + boolean found = false; + + for (i = 0; i < playlists.size(); i++) { + if (playlists.get(i).getTitle().equalsIgnoreCase(playListTitle)) { + thePlaylist = playlists.get(i); + found = true; + break; + } + } + + if (found) { + AudioElement theElement = null; + for (AudioElement ae : elements) { + if (ae.getTitle().equalsIgnoreCase(elementTitle)) { + theElement = ae; + break; + } + } + if (theElement != null) { + thePlaylist.addElement(theElement.getUUID()); + //replace the album in the list + playlists.set(i, thePlaylist); + } else throw new NoElementFoundException("Element " + elementTitle + " not found!"); + + } else throw new NoPlayListFoundException("Playlist " + playListTitle + " not found!"); + + } + + private void loadAlbums() { + NodeList albumNodes = xmlHandler.parseXMLFile(ALBUMS_FILE_PATH); + if (albumNodes == null) return; + + for (int i = 0; i < albumNodes.getLength(); i++) { + if (albumNodes.item(i).getNodeType() == Node.ELEMENT_NODE) { + Element albumElement = (Element) albumNodes.item(i); + if (albumElement.getNodeName().equals("album")) { + try { + this.addAlbum(new Album(albumElement)); + } catch (Exception ex) { + System.out.println("Something is wrong with the XML album element"); + } + } + } + } + } + + private void loadPlaylists() { + NodeList playlistNodes = xmlHandler.parseXMLFile(PLAYLISTS_FILE_PATH); + if (playlistNodes == null) return; + + for (int i = 0; i < playlistNodes.getLength(); i++) { + if (playlistNodes.item(i).getNodeType() == Node.ELEMENT_NODE) { + Element playlistElement = (Element) playlistNodes.item(i); + if (playlistElement.getNodeName().equals("playlist")) { + try { + this.addPlaylist(new PlayList(playlistElement)); + } catch (Exception ex) { + System.out.println("Something is wrong with the XML playlist element"); + } + } + } + } + } + + private void loadElements() { + NodeList audioelementsNodes = xmlHandler.parseXMLFile(ELEMENTS_FILE_PATH); + if (audioelementsNodes == null) return; + + for (int i = 0; i < audioelementsNodes.getLength(); i++) { + if (audioelementsNodes.item(i).getNodeType() == Node.ELEMENT_NODE) { + Element audioElement = (Element) audioelementsNodes.item(i); + if (audioElement.getNodeName().equals("song")) { + try { + AudioElement newSong = new Song(audioElement); + this.addElement(newSong); + } catch (Exception ex) { + System.out.println("Something is wrong with the XML song element"); + } + } + if (audioElement.getNodeName().equals("audiobook")) { + try { + AudioElement newAudioBook = new AudioBook(audioElement); + this.addElement(newAudioBook); + } catch (Exception ex) { + System.out.println("Something is wrong with the XML audiobook element"); + } + } + } + } + } + + + public void saveAlbums() { + Document document = xmlHandler.createXMLDocument(); + if (document == null) return; + + // root element + Element root = document.createElement("albums"); + document.appendChild(root); + + //save all albums + for (Iterator albumsIter = this.albums(); albumsIter.hasNext(); ) { + Album currentAlbum = albumsIter.next(); + currentAlbum.createXMLElement(document, root); + } + xmlHandler.createXMLFile(document, ALBUMS_FILE_PATH); + } + + public void savePlayLists() { + Document document = xmlHandler.createXMLDocument(); + if (document == null) return; + + // root element + Element root = document.createElement("playlists"); + document.appendChild(root); + + //save all playlists + for (Iterator playlistsIter = this.playlists(); playlistsIter.hasNext(); ) { + PlayList currentPlayList = playlistsIter.next(); + currentPlayList.createXMLElement(document, root); + } + xmlHandler.createXMLFile(document, PLAYLISTS_FILE_PATH); + } + + public void saveElements() { + Document document = xmlHandler.createXMLDocument(); + if (document == null) return; + + // root element + Element root = document.createElement("elements"); + document.appendChild(root); + + //save all AudioElements + for (AudioElement currentElement : elements) { + + if (currentElement instanceof Song) { + currentElement.createXMLElement(document, root); + } + if (currentElement instanceof AudioBook) { + currentElement.createXMLElement(document, root); + } + } + xmlHandler.createXMLFile(document, ELEMENTS_FILE_PATH); + } +} \ No newline at end of file -- cgit v1.2.3 From 48d56d9db8fe93f1e1799674fefabdfc677d2eb7 Mon Sep 17 00:00:00 2001 From: Clyhtsuriva Date: Tue, 8 Jun 2021 20:52:31 +0200 Subject: Update of README.md and MusicHub.java --- README.md | 16 +++++++++++++++- src/musichub/business/MusicHub.java | 6 +++--- 2 files changed, 18 insertions(+), 4 deletions(-) (limited to 'src/musichub/business/MusicHub.java') diff --git a/README.md b/README.md index 0f54923..3c81196 100644 --- a/README.md +++ b/README.md @@ -1 +1,15 @@ -# spoteezer \ No newline at end of file +# Spoteezer + +## The Team + +This project was done by a team of 3 amazing people: + ++ Aimeric ADJUTOR ++ Said BELHADJ ++ Anthony BOULANT + +## The project + +This project is being done as part of our sixth semester at the engineering school, the ESIEA. + +## W.I.P. ... \ No newline at end of file diff --git a/src/musichub/business/MusicHub.java b/src/musichub/business/MusicHub.java index 4eb09c3..38e2214 100644 --- a/src/musichub/business/MusicHub.java +++ b/src/musichub/business/MusicHub.java @@ -28,9 +28,9 @@ class SortByAuthor implements Comparator { public class MusicHub { public static final String DIR = System.getProperty("user.dir"); - public static final String ALBUMS_FILE_PATH = DIR + "\\files\\albums.xml"; - public static final String PLAYLISTS_FILE_PATH = DIR + "\\files\\playlists.xml"; - public static final String ELEMENTS_FILE_PATH = DIR + "\\files\\elements.xml"; + public static final String ALBUMS_FILE_PATH = DIR + "/files/albums.xml"; + public static final String PLAYLISTS_FILE_PATH = DIR + "/files/playlists.xml"; + public static final String ELEMENTS_FILE_PATH = DIR + "/files/elements.xml"; private final List albums; private final List playlists; private final List elements; -- cgit v1.2.3