TagHandlerTestCase.java :  » MP3 » id3tagman » net » eclipseforum » id3tagman » test » Java Open Source

package net.eclipseforum.id3tagman.test;

import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;

import junit.framework.TestCase;
import net.eclipseforum.id3tagman.TagProperty.IDs;
import net.eclipseforum.id3tagman.handler.ID3TagHandlerException;
import net.eclipseforum.id3tagman.handler.ID3TagHandlerFactory;
import net.eclipseforum.id3tagman.handler.ID3TagHandlerNotFoundExpcetion;
import net.eclipseforum.id3tagman.handler.IID3TagHandler;
import net.eclipseforum.id3tagman.util.FileCopy;

public class TagHandlerTestCase extends TestCase {
  // public enum IDs {
  // FileName(0), Title(1), TrackNumber(2), Artist(3), Album(4), AlbumTitle(
  // 5), Genre(6), Authors(7), Comment(8), Year(9);
  //
  // private int index;
  //
  // IDs(int index) {
  // this.index = index;
  // }
  //
  // public int index() {
  // return this.index;
  // }
  // };

  // - get file list from dir
  // - read mp3 file
  // - read tag info and parse
  // - get properties
  // - convert if needed
  // - set properties
  // - save tag info
  // - save file
  public void test() throws IOException {
    // - get file list from dir
    File dir = new File("/Users/yeoupooh/");
    String[] fileNames = dir.list(new FilenameFilter() {
      public boolean accept(File dir, String name) {
        if (name.toLowerCase().endsWith(".mp3"))
          return true;
        return false;
      }
    });

    // - read mp3 file
    if (fileNames == null) {
      return;
    }

    // String handlerName = "Javamp3";
    String handlerName = "Jaudiotagger";

    int i = 0;

    // for (int i = 0; i < fileNames.length; i++) {
    String fileName = dir + "/" + fileNames[i];
    System.out.println("src file=[" + fileName + "]");

    String testFileName = fileName + ".test.mp3";
    System.out.println("test file=[" + testFileName + "]");

    File testFile = new File(testFileName);
    if (testFile.exists()) {
      testFile.delete();
    }
    FileCopy.copy(fileName, testFileName);

    ID3TagHandlerFactory factory = ID3TagHandlerFactory.getInstance();
    IID3TagHandler handler;
    try {
      handler = factory.getHandler(handlerName);

      // - read tag info and parse
      handler.load(testFileName);

      // - get properties
      System.out
          .println("title=[" + handler.getProperty(IDs.Title) + "]");
      System.out
          .println("album=[" + handler.getProperty(IDs.Album) + "]");
      System.out.println("genr=[" + handler.getProperty(IDs.Genre) + "]");
      System.out.println("artist=[" + handler.getProperty(IDs.Artist)
          + "]");

      // - convert if needed

      // - set properties
      setProperty(handler, IDs.Title, "new title");
      setProperty(handler, IDs.Artist, "new artist");
      setProperty(handler, IDs.Album, "new album");
      setProperty(handler, IDs.Genre, "new genre");

      // - save tag info
      // - save file
      handler.save();
      System.out.println("saved.");
    } catch (ID3TagHandlerNotFoundExpcetion e1) {
      e1.printStackTrace();
    } catch (ID3TagHandlerException e) {
      System.err.println("error in loading mp3");
      e.printStackTrace();
    }

    // } // for

    System.out.println("done.");
  }

  private void setProperty(IID3TagHandler handler, IDs id, String value)
      throws ID3TagHandlerException {
    handler.setProperty(id, value);
    System.out.println("set " + id + "=[" + value + "]");
  }
}