package com.limegroup.gnutella.metadata.audio;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.limewire.util.NameValue;
import com.limegroup.gnutella.metadata.MetaData;
import com.limegroup.gnutella.xml.LimeXMLDocument;
import com.limegroup.gnutella.xml.LimeXMLDocumentFactory;
import com.limegroup.gnutella.xml.LimeXMLNames;
/**
* A composite of audio data for marshalling it to and from disk. When loading
* meta-data from audio files to LimeXMLDocuments and when writing LimeXMLDocument
* updates to disk.
*/
public class AudioMetaData implements MetaData {
private String title;
private String artist;
private String album;
private String year;
private String comment;
private String track;
private String genre;
private int bitrate = -1;
private int length = -1;
private short totalTracks =-1;
private short disk=-1;
private short totalDisks=-1;
private String license;
private String licensetype;
private String channels;
private int sampleRate = -1;
private boolean isVBR = false;
/**
* @return the XML schema this data represents.
*/
public String getSchemaURI() {
return LimeXMLNames.AUDIO_SCHEMA;
}
public void populate(LimeXMLDocument doc) {
title = (doc.getValue(LimeXMLNames.AUDIO_TITLE) == null ) ? "" : doc.getValue(LimeXMLNames.AUDIO_TITLE);
artist = (doc.getValue(LimeXMLNames.AUDIO_ARTIST) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_ARTIST);
album = (doc.getValue(LimeXMLNames.AUDIO_ALBUM) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_ALBUM);
year = (doc.getValue(LimeXMLNames.AUDIO_YEAR) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_YEAR);
track = (doc.getValue(LimeXMLNames.AUDIO_TRACK) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_TRACK);
comment = (doc.getValue(LimeXMLNames.AUDIO_COMMENTS) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_COMMENTS);
genre = (doc.getValue(LimeXMLNames.AUDIO_GENRE) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_GENRE);
license = (doc.getValue(LimeXMLNames.AUDIO_LICENSE) == null) ? "" : doc.getValue(LimeXMLNames.AUDIO_LICENSE);
}
public List<NameValue<String>> toNameValueList() {
List<NameValue<String>> list = new ArrayList<NameValue<String>>();
add(list, title, LimeXMLNames.AUDIO_TITLE);
add(list, artist, LimeXMLNames.AUDIO_ARTIST);
add(list, album, LimeXMLNames.AUDIO_ALBUM);
add(list, year, LimeXMLNames.AUDIO_YEAR);
add(list, comment, LimeXMLNames.AUDIO_COMMENTS);
add(list, track, LimeXMLNames.AUDIO_TRACK);
add(list, genre, LimeXMLNames.AUDIO_GENRE);
add(list, bitrate, LimeXMLNames.AUDIO_BITRATE);
add(list, length, LimeXMLNames.AUDIO_SECONDS);
add(list, license, LimeXMLNames.AUDIO_LICENSE);
add(list, licensetype, LimeXMLNames.AUDIO_LICENSETYPE);
return list;
}
public String getTitle() { return title; }
public String getArtist() { return artist; }
public String getAlbum() { return album; }
public String getYear() { return year; }
public String getComment() { return comment; }
public String getTrack() { return track; }
public short getTotalTracks() {return totalTracks;}
public short getDisk() {return disk;}
public short getTotalDisks() {return totalDisks;}
public String getGenre() { return genre; }
public int getBitrate() { return bitrate; }
public int getLength() { return length; }
public String getLicense() { return license; }
public String getLicenseType() { return licensetype; }
public String getNumChannels(){ return channels; }
public int getSampleRate(){ return sampleRate; }
public boolean isVBR(){ return isVBR; }
public void setTitle(String title) { this.title = title; }
public void setArtist(String artist) { this.artist = artist; }
public void setAlbum(String album) { this.album = album; }
public void setYear(String year) { this.year = year; }
public void setComment(String comment) { this.comment = comment; }
public void setTrack(String track) { this.track = track; }
public void setTotalTracks(short total) { totalTracks = total; }
public void setDisk(short disk) { this.disk =disk; }
public void setTotalDisks(short total) { totalDisks=total; }
public void setGenre(String genre) { this.genre = genre; }
public void setBitrate(int bitrate) { this.bitrate = bitrate; }
public void setLength(int length) { this.length = length; }
public void setLicense(String license) { this.license = license; }
public void setLicenseType(String licensetype) { this.licensetype = licensetype; }
public void setNumChannels(String channels) { this.channels = channels; }
public void setSampleRate(int sampleRate) { this.sampleRate = sampleRate; }
public void setVBR(boolean isVBR) { this.isVBR = isVBR; }
private void add(List<NameValue<String>> list, String value, String key) {
if(isValid(value))
list.add(new NameValue<String>(key, value.trim()));
}
private void add(List<NameValue<String>> list, int value, String key) {
if(isValid(value))
list.add(new NameValue<String>(key, "" + value));
}
private boolean isValid(String s) {
return s != null && !s.trim().equals("");
}
private boolean isValid(int i) {
return i >= 0;
}
/**
* Determines whether a LimeXMLDocument was corrupted by
* ID3Editor in the past.
*/
public static boolean isCorrupted(LimeXMLDocument doc) {
if(!LimeXMLNames.AUDIO_SCHEMA.equals(doc.getSchemaURI()))
return false;
for(Map.Entry<String, String> entry : doc.getNameValueSet()) {
String name = entry.getKey();
String value = entry.getValue();
// album & artist were the corrupted fields ...
if( name.equals(LimeXMLNames.AUDIO_ALBUM) || name.equals(LimeXMLNames.AUDIO_ARTIST) ) {
if( value.length() == 30 ) {
// if there is a value in the 29th char, but not
// in the 28th, it's corrupted.
if( value.charAt(29) != ' ' && value.charAt(28) == ' ' )
return true;
}
}
}
return false;
}
/**
* Creates a new LimeXMLDocument without corruption.
*/
public static LimeXMLDocument fixCorruption(LimeXMLDocument oldDoc, LimeXMLDocumentFactory limeXMLDocumentFactory) {
List<NameValue<String>> info = new ArrayList<NameValue<String>>(oldDoc.getNumFields());
for(Map.Entry<String, String> entry : oldDoc.getNameValueSet()) {
String name = entry.getKey();
String value = entry.getValue();
// album & artist were the corrupted fields ...
if( name.equals(LimeXMLNames.AUDIO_ALBUM) || name.equals(LimeXMLNames.AUDIO_ARTIST) ) {
if( value.length() == 30 ) {
// if there is a value in the 29th char, but not
// in the 28th, it's corrupted erase & trim.
if( value.charAt(29) != ' ' && value.charAt(28) == ' ' )
value = value.substring(0, 29).trim();
}
}
info.add(new NameValue<String>(name, value));
}
return limeXMLDocumentFactory.createLimeXMLDocument(info, oldDoc.getSchemaURI());
}
public static boolean isNonLimeAudioField(String fieldName) {
return !fieldName.equals(LimeXMLNames.AUDIO_TRACK) &&
!fieldName.equals(LimeXMLNames.AUDIO_ARTIST) &&
!fieldName.equals(LimeXMLNames.AUDIO_ALBUM) &&
!fieldName.equals(LimeXMLNames.AUDIO_TITLE) &&
!fieldName.equals(LimeXMLNames.AUDIO_GENRE) &&
!fieldName.equals(LimeXMLNames.AUDIO_YEAR) &&
!fieldName.equals(LimeXMLNames.AUDIO_COMMENTS) &&
!fieldName.equals(LimeXMLNames.AUDIO_BITRATE) &&
!fieldName.equals(LimeXMLNames.AUDIO_SECONDS) &&
!fieldName.equals(LimeXMLNames.AUDIO_LICENSE) &&
!fieldName.equals(LimeXMLNames.AUDIO_PRICE) &&
!fieldName.equals(LimeXMLNames.AUDIO_LICENSETYPE)
;
}
}