MediaTypeClassifierBuilder.java 文件源码

MediaTypeClassifierImpl(Iterable<? extends MediaType> mts) {
  Table<String, String, Set<MediaType>> typeTable =
      HashBasedTable.<String, String, Set<MediaType>>create();
  for (MediaType mt : mts) {
    String type = mt.type();
    String subtype = mt.subtype();
    Set<MediaType> typeSet = typeTable.get(type, subtype);
    if (typeSet == null) {
      typeSet = Sets.newLinkedHashSet();
      typeTable.put(type, subtype, typeSet);
    }
    typeSet.add(mt);
  }

  ImmutableTable.Builder<String, String, ImmutableSet<MediaType>> b =
      ImmutableTable.builder();
  for (Table.Cell<String, String, Set<MediaType>> cell
       : typeTable.cellSet()) {
    b.put(cell.getRowKey(), cell.getColumnKey(), ImmutableSet.copyOf(cell.getValue()));
  }
  this.types = b.build();
}