X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fdemoscenemusic%2Fdata%2FDataManager.java;h=ba2f61ebdcff2c38f3ecca1d2c5411e7db6752d2;hb=c9117016826126bebbac9f4bee9fa9a3839b87c7;hp=a99b13d5da6e2a4b108cec7a2198182a290f7461;hpb=c461c8a84b2cab678912f26d8b8488e6e291d6db;p=demoscenemusic.git

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java b/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
index a99b13d..ba2f61e 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
@@ -20,6 +20,7 @@ package net.pterodactylus.demoscenemusic.data;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
 
@@ -50,6 +51,19 @@ public class DataManager {
 		this.database = database;
 	}
 
+	public Collection<Artist> getAllArtists() throws DatabaseException {
+		Query query = new Query(Type.SELECT, "ARTISTS");
+		query.addField(new Field("ARTISTS.*"));
+		query.addField(new Field("GROUP_ARTISTS.*"));
+		query.addField(new Field("GROUPS.*"));
+		query.addJoin(new Join(JoinType.INNER, "GROUP_ARTISTS", new Field("ARTISTS.ID"), new Field("GROUP_ARTISTS.ARTIST")));
+		query.addJoin(new Join(JoinType.INNER, "GROUPS", new Field("GROUP_ARTISTS.GROUP_"), new Field("GROUPS.ID")));
+		query.addOrderField(new OrderField(new Field("ARTISTS.ID")));
+		ArtistLoader artistLoader = new ArtistLoader();
+		database.process(query, artistLoader);
+		return artistLoader.all();
+	}
+
 	public Track trackById(String id) throws DatabaseException {
 		Query query = new Query(Type.SELECT, "TRACKS");
 		query.addField(new Field("TRACKS.*"));
@@ -114,4 +128,43 @@ public class DataManager {
 
 	}
 
+	private class ArtistLoader implements ResultProcessor {
+
+		private final List<Artist> artists = new ArrayList<Artist>();
+		private Artist artist;
+
+		public List<Artist> all() {
+			return artists;
+		}
+
+		//
+		// RESULTPROCESSOR METHODS
+		//
+
+		/**
+		 * {@inheritDoc}
+		 */
+		public void processResult(ResultSet resultSet) throws SQLException {
+			String artistId = resultSet.getString("ARTISTS.ID");
+			if ((artist == null) || (!artist.id().equals(artistId))) {
+				artist = new AbstractArtist(artistId) {
+
+					public void save() {
+					}
+
+				}.name(resultSet.getString("ARTISTS.NAME")).groups(new HashSet<Group>());
+				artists.add(artist);
+			}
+
+			Group group = new AbstractGroup(resultSet.getString("GROUPS.ID")) {
+
+				public void save() {
+				}
+
+			}.name(resultSet.getString("GROUPS.NAME")).url(resultSet.getString("GROUPS.URL"));
+			artist.groups().add(group);
+		}
+
+	}
+
 }