public String viewCategory() {
   try {
     if (categoryId > -1) {
       System.out.println("categoryid>1");
       songList = catalogService.getSongListByCategoryId(categoryId);
       category = catalogService.getCategoryById(categoryId);
     }
     return "success";
   } catch (Exception ex) {
     System.out.println("got ex");
     ex.printStackTrace();
     return null;
   }
 }
 public String searchSongs() {
   if (keyword == null || keyword.length() < 1) {
     System.out.println("keyword is nothing");
     ActionContext.getActionContext()
         .setSimpleMessage("Please enter a keyword to search for, then press the search button.");
     return "failure";
   } else {
     System.out.println("got keyword:" + keyword);
     songList = catalogService.searchSongList(keyword.toLowerCase());
     return "success";
   }
 }
public class CatalogBean extends BaseBean {

  /* Constants */
  private static final CatalogService catalogService = CatalogService.getInstance();
  private static final SongService songService = SongService.getInstance();

  /* Private Fields */
  private String keyword;
  private String pageDirection;
  private String name;
  private int categoryId;
  private Category category;
  private PaginatedList categoryList;
  private String sngname;
  private Song song;
  private PaginatedList songList;
  private String itemId;
  private PaginatedList itemList;
  private int resultNum;

  /* JavaBeans Properties */
  public int getResultNum() {
    return songList.size();
  }

  public void setResultNum(int resultNum) {
    this.resultNum = resultNum;
  }

  public String getKeyword() {
    return keyword;
  }

  public void setKeyword(String keyword) {
    this.keyword = keyword;
  }

  public String getPageDirection() {
    return pageDirection;
  }

  public void setPageDirection(String pageDirection) {
    this.pageDirection = pageDirection;
  }

  public int getCategoryId() {
    return categoryId;
  }

  public void setCategoryId(int categoryId) {
    this.categoryId = categoryId;
  }

  public String getSngname() {
    return sngname;
  }

  public void setSngname(String sngName) {
    this.sngname = sngName;
  }

  public String getItemId() {
    return itemId;
  }

  public void setItemId(String itemId) {
    this.itemId = itemId;
  }

  public Category getCategory() {
    return category;
  }

  public void setCategory(Category category) {
    this.category = category;
  }

  public Song getSong() {
    return song;
  }

  public void setSong(Song song) {
    this.song = song;
  }

  public PaginatedList getCategoryList() {
    return categoryList;
  }

  public void setCategoryList(PaginatedList categoryList) {
    this.categoryList = categoryList;
  }

  public PaginatedList getSongList() {
    return songList;
  }

  public void setSongList(PaginatedList songList) {
    this.songList = songList;
  }

  public PaginatedList getItemList() {
    return itemList;
  }

  public void setItemList(PaginatedList itemList) {
    this.itemList = itemList;
  }

  /* Public Methods */

  public String viewLeaderBoard() {
    try {
      songList = songService.getSongOrderByClicks();
      return "success";
    } catch (Exception ex) {
      System.out.println("got ex");
      ex.printStackTrace();
      return null;
    }
  }

  public String viewCategory() {
    try {
      if (categoryId > -1) {
        System.out.println("categoryid>1");
        songList = catalogService.getSongListByCategoryId(categoryId);
        category = catalogService.getCategoryById(categoryId);
      }
      return "success";
    } catch (Exception ex) {
      System.out.println("got ex");
      ex.printStackTrace();
      return null;
    }
  }

  public String searchSongsWithDetails() {
    if (keyword == null || keyword.length() < 1) {
      System.out.println("keyword is nothing");
      ActionContext.getActionContext()
          .setSimpleMessage("Please enter a keyword to search for, then press the search button.");
      return "failure";
    } else {
      System.out.println("got keyword:" + keyword);
      songList = catalogService.searchSongListByDetails(keyword.toLowerCase());
      return "success";
    }
  }

  public String searchSongs() {
    if (keyword == null || keyword.length() < 1) {
      System.out.println("keyword is nothing");
      ActionContext.getActionContext()
          .setSimpleMessage("Please enter a keyword to search for, then press the search button.");
      return "failure";
    } else {
      System.out.println("got keyword:" + keyword);
      songList = catalogService.searchSongList(keyword.toLowerCase());
      return "success";
    }
  }

  public String switchProductListPage() {
    if ("next".equals(pageDirection)) {
      songList.nextPage();
    } else if ("previous".equals(pageDirection)) {
      songList.previousPage();
    }
    return "success";
  }

  public String switchItemListPage() {
    if ("next".equals(pageDirection)) {
      itemList.nextPage();
    } else if ("previous".equals(pageDirection)) {
      itemList.previousPage();
    }
    return "success";
  }

  public void clear() {
    keyword = null;
    pageDirection = null;

    name = null;
    category = null;
    categoryList = null;

    sngname = null;
    song = null;
    songList = null;

    itemId = null;
    itemList = null;
  }
}