MemphisDJ/src/music/Track.java

   1 package music;
   2
   3
   4 import interfaces.Album;
   5 import interfaces.HasMetadata;
   6
   7 import java.io.IOException;
   8 import java.io.InputStream;
   9 import java.util.HashMap;
  10 import java.util.Map;
  11
  12 public abstract class Track implements HasMetadata {
  13
  14         private final int id;
  15         private final long persistentId;
  16         private Album album;
  17         private final Map<Integer, Object> tags = new HashMap<Integer, Object>();
  18
  19         public Track(int id, long persistentId) {
  20                 this.id = id;
  21                 this.persistentId = persistentId;
  22                 this.tags.put(1835624804, id);
  23                 this.tags.put(1836082546, persistentId);
  24         }
  25
  26         public int id() {
  27                 return id;
  28         }
  29
  30         public long persistentId() {
  31                 return persistentId;
  32         }
  33
  34         public boolean equals(Object o) {
  35                 if (o instanceof Track) {
  36                         return ((Track)o).persistentId == this.persistentId;
  37                 }
  38                 return false;
  39         }
  40
  41         public int hashCode() {
  42                 return ((Long)persistentId).hashCode();
  43         }
  44
  45         public Album getAlbum() {
  46                 return album;
  47         }
  48
  49         public void setAlbum(Album album) {
  50                 this.album = album;
  51         }
  52
  53         public Object get(int tag) {
  54                 return tags.get(tag);
  55         }
  56
  57         public void put(int tag, Object value) {
  58                 tags.put(tag, value);
  59         }
  60
  61         public Iterable<Integer> getAllTags() {
  62                 return tags.keySet();
  63         }
  64
  65         /**
  66          * Returns the track as a playable stream of data.
  67          *
  68          * @return A stream, possibly null
  69          * @throws IOException
  70          */
  71         public abstract InputStream getStream() throws IOException;
  72
  73         public interface TrackFactory {
  74                 public Track create(int id, long persistentId);
  75         }
  76 }