/**
* @author : Paul Taylor
* @author : Eric Farng
*
* Version @version:$Id: Lyrics3v2Field.java 836 2009-11-12 15:44:07Z paultaylor $
*
* MusicTag Copyright (C)2003,2004
*
* This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
* General Public License as published by the Free Software Foundation; either version 2.1 of the License,
* or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this library; if not,
* you can get a copy from http://www.opensource.org/licenses/lgpl-license.php or write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Description:
*/
package org.jaudiotagger.tag.lyrics3;
import org.jaudiotagger.tag.InvalidTagException;
import org.jaudiotagger.tag.TagException;
import org.jaudiotagger.tag.TagOptionSingleton;
import org.jaudiotagger.tag.id3.AbstractID3v2Frame;
import org.jaudiotagger.tag.id3.AbstractTagFrame;
import org.jaudiotagger.tag.id3.framebody.AbstractFrameBodyTextInfo;
import org.jaudiotagger.tag.id3.framebody.FrameBodyCOMM;
import org.jaudiotagger.tag.id3.framebody.FrameBodySYLT;
import org.jaudiotagger.tag.id3.framebody.FrameBodyUSLT;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
public class Lyrics3v2Field extends AbstractTagFrame
{
/**
* Creates a new Lyrics3v2Field datatype.
*/
public Lyrics3v2Field()
{
}
public Lyrics3v2Field(Lyrics3v2Field copyObject)
{
super(copyObject);
}
/**
* Creates a new Lyrics3v2Field datatype.
*
* @param body
*/
public Lyrics3v2Field(AbstractLyrics3v2FieldFrameBody body)
{
this.frameBody = body;
}
/**
* Creates a new Lyrics3v2Field datatype.
*
* @param frame
* @throws TagException
*/
public Lyrics3v2Field(AbstractID3v2Frame frame) throws TagException
{
AbstractFrameBodyTextInfo textFrame;
String text;
String frameIdentifier = frame.getIdentifier();
if (frameIdentifier.startsWith("USLT"))
{
frameBody = new FieldFrameBodyLYR("");
((FieldFrameBodyLYR) frameBody).addLyric((FrameBodyUSLT) frame.getBody());
}
else if (frameIdentifier.startsWith("SYLT"))
{
frameBody = new FieldFrameBodyLYR("");
((FieldFrameBodyLYR) frameBody).addLyric((FrameBodySYLT) frame.getBody());
}
else if (frameIdentifier.startsWith("COMM"))
{
text = ((FrameBodyCOMM) frame.getBody()).getText();
frameBody = new FieldFrameBodyINF(text);
}
else if (frameIdentifier.equals("TCOM"))
{
textFrame = (AbstractFrameBodyTextInfo) frame.getBody();
frameBody = new FieldFrameBodyAUT("");
if ((textFrame != null) && (textFrame.getText().length() > 0))
{
frameBody = new FieldFrameBodyAUT(textFrame.getText());
}
}
else if (frameIdentifier.equals("TALB"))
{
textFrame = (AbstractFrameBodyTextInfo) frame.getBody();
if ((textFrame != null) && (textFrame.getText().length() > 0))
{
frameBody = new FieldFrameBodyEAL(textFrame.getText());
}
}
else if (frameIdentifier.equals("TPE1"))
{
textFrame = (AbstractFrameBodyTextInfo) frame.getBody();
if ((textFrame != null) && (textFrame.getText().length() > 0))
{
frameBody = new FieldFrameBodyEAR(textFrame.getText());
}
}
else if (frameIdentifier.equals("TIT2"))
{
textFrame = (AbstractFrameBodyTextInfo) frame.getBody();
if ((textFrame != null) && (textFrame.getText().length() > 0))
{
frameBody = new FieldFrameBodyETT(textFrame.getText());
}
}
else
{
throw new TagException("Cannot createField Lyrics3v2 field from given ID3v2 frame");
}
}
/**
* Creates a new Lyrics3v2Field datatype.
*
* @param file
* @throws InvalidTagException
* @param byteBuffer
*/
public Lyrics3v2Field(ByteBuffer byteBuffer) throws InvalidTagException
{
this.read(byteBuffer);
}
/**
* @return
*/
public String getIdentifier()
{
if (frameBody == null)
{
return "";
}
return frameBody.getIdentifier();
}
/**
* @return
*/
public int getSize()
{
return frameBody.getSize() + 5 + getIdentifier().length();
}
/**
* @param byteBuffer
* @throws InvalidTagException
* @throws IOException
*/
public void read(ByteBuffer byteBuffer) throws InvalidTagException
{
byte[] buffer = new byte[6];
// lets scan for a non-zero byte;
long filePointer;
byte b;
do
{
b = byteBuffer.get();
}
while (b == 0);
byteBuffer.position(byteBuffer.position() - 1);
// read the 3 character ID
byteBuffer.get(buffer, 0, 3);
String identifier = new String(buffer, 0, 3);
// is this a valid identifier?
if (!Lyrics3v2Fields.isLyrics3v2FieldIdentifier(identifier))
{
throw new InvalidTagException(identifier + " is not a valid ID3v2.4 frame");
}
frameBody = readBody(identifier, byteBuffer);
}
/**
* @return
*/
public String toString()
{
if (frameBody == null)
{
return "";
}
return frameBody.toString();
}
/**
* @param file
* @throws IOException
*/
public void write(RandomAccessFile file) throws IOException
{
if ((frameBody.getSize() > 0) || TagOptionSingleton.getInstance().isLyrics3SaveEmptyField())
{
byte[] buffer = new byte[3];
String str = getIdentifier();
for (int i = 0; i < str.length(); i++)
{
buffer[i] = (byte) str.charAt(i);
}
file.write(buffer, 0, str.length());
//body.write(file);
}
}
/**
* Read a Lyrics3 Field from a file.
*
* @param identifier
* @param byteBuffer
* @return
* @throws InvalidTagException
*/
private AbstractLyrics3v2FieldFrameBody readBody(String identifier, ByteBuffer byteBuffer) throws InvalidTagException
{
AbstractLyrics3v2FieldFrameBody newBody;
if (identifier.equals(Lyrics3v2Fields.FIELD_V2_AUTHOR))
{
newBody = new FieldFrameBodyAUT(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_ALBUM))
{
newBody = new FieldFrameBodyEAL(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_ARTIST))
{
newBody = new FieldFrameBodyEAR(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_TRACK))
{
newBody = new FieldFrameBodyETT(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_IMAGE))
{
newBody = new FieldFrameBodyIMG(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_INDICATIONS))
{
newBody = new FieldFrameBodyIND(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_ADDITIONAL_MULTI_LINE_TEXT))
{
newBody = new FieldFrameBodyINF(byteBuffer);
}
else if (identifier.equals(Lyrics3v2Fields.FIELD_V2_LYRICS_MULTI_LINE_TEXT))
{
newBody = new FieldFrameBodyLYR(byteBuffer);
}
else
{
newBody = new FieldFrameBodyUnsupported(byteBuffer);
}
return newBody;
}
}
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