From 5fc0bbf713ccc5862e185ad47550dc2dcca2e7f9 Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Thu, 26 Apr 2012 10:43:15 +0200
Subject: [PATCH] Add remix name and artists to track.

---
 .../demoscenemusic/data/DataManager.java           | 42 +++++++++++++++++++++-
 .../demoscenemusic/data/DefaultTrack.java          | 35 ++++++++++++++++++
 .../pterodactylus/demoscenemusic/data/Track.java   | 35 ++++++++++++++++++
 3 files changed, 111 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java b/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
index f3252f0..ac146e1 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
@@ -139,6 +139,24 @@ public class DataManager {
 	}
 
 	/**
+	 * Returns all remix artists involved in the track with the given ID.
+	 *
+	 * @param trackId
+	 *            The ID of the track
+	 * @return All remix artists involved in the track, in preferred order
+	 * @throws DatabaseException
+	 *             if a database error occurs
+	 */
+	public List<Artist> getRemixArtistsByTrack(String trackId) throws DatabaseException {
+		Query query = new Query(Type.SELECT, "ARTISTS");
+		query.addField(new Field("ARTISTS.*"));
+		query.addJoin(new Join(JoinType.INNER, "TRACK_REMIX_ARTISTS", new Field("TRACK_REMIX_ARTISTS.ARTIST"), new Field("ARTISTS.ID")));
+		query.addWhereClause(new ValueFieldWhereClause(new ValueField("TRACK_REMIX_ARTISTS.TRACK", new StringParameter(trackId))));
+		query.addOrderField(new OrderField(new Field("TRACK_REMIX_ARTISTS.DISPLAY_ORDER")));
+		return database.getMultiple(query, artistCreator);
+	}
+
+	/**
 	 * Returns the track with the given ID.
 	 *
 	 * @param id
@@ -392,6 +410,19 @@ public class DataManager {
 
 		});
 
+		/** Memoizer for the remix artists. */
+		private final Memoizer<Void> remixArtistsMemoizer = new Memoizer<Void>(new Callable<Void>() {
+
+			@Override
+			public Void call() throws Exception {
+				if (!hasValue("remixArtists")) {
+					getValue("remixArtists", List.class).set(getRemixArtistsByTrack(getId()));
+				}
+				return null;
+			}
+
+		});
+
 		/**
 		 * Creates a new track.
 		 *
@@ -424,6 +455,15 @@ public class DataManager {
 			return super.getStyles();
 		}
 
+		/**
+		 * {@inheritDoc}
+		 */
+		@Override
+		public List<Artist> getRemixArtists() {
+			remixArtistsMemoizer.get();
+			return super.getRemixArtists();
+		}
+
 	}
 
 	/**
@@ -440,7 +480,7 @@ public class DataManager {
 		 */
 		@Override
 		public Track createObject(ResultSet resultSet) throws SQLException {
-			return new LazyTrack(resultSet.getString("TRACKS.ID")).setName(resultSet.getString("TRACKS.NAME"));
+			return new LazyTrack(resultSet.getString("TRACKS.ID")).setName(resultSet.getString("TRACKS.NAME")).setRemix(resultSet.getString("TRACKS.REMIX"));
 		}
 
 	}
diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrack.java b/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrack.java
index b357517..fafb8a2 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrack.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrack.java
@@ -94,4 +94,39 @@ public class DefaultTrack extends DefaultBase implements Track {
 		return this;
 	}
 
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String getRemix() {
+		return getValue("remix", String.class).get();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public Track setRemix(String remix) {
+		getValue("remix", String.class).set(remix);
+		return this;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	@SuppressWarnings("unchecked")
+	public List<Artist> getRemixArtists() {
+		return getValue("remixArtists", List.class).get();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public Track setRemixArtists(List<Artist> remixArtists) {
+		getValue("remixArtists", List.class).set(remixArtists);
+		return this;
+	}
+
 }
diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/Track.java b/src/main/java/net/pterodactylus/demoscenemusic/data/Track.java
index 204cb77..a1362db 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/Track.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/Track.java
@@ -75,4 +75,39 @@ public interface Track extends Base {
 	 */
 	public Track setStyles(Collection<? extends Style> styles);
 
+	/**
+	 * Returns the name of this remix. If this track is not a remix,
+	 * {@code null} is returned.
+	 *
+	 * @return The name of this remix, or {@code null} if this track is not a
+	 *         remix
+	 */
+	public String getRemix();
+
+	/**
+	 * Sets the name of the remix.
+	 *
+	 * @param remix
+	 *            The name of this remix, or {@code null} if this track is not a
+	 *            remix
+	 * @return This track
+	 */
+	public Track setRemix(String remix);
+
+	/**
+	 * Returns all remix artists involved in this track.
+	 *
+	 * @return All remix artists involved in this track
+	 */
+	public List<Artist> getRemixArtists();
+
+	/**
+	 * Sets all remix artists involved in this track.
+	 *
+	 * @param remixArtists
+	 *            All remix artists involved in this track
+	 * @return This track
+	 */
+	public Track setRemixArtists(List<Artist> remixArtists);
+
 }
-- 
2.7.4