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/*
* Created on May 6, 2003
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
Copyright 2003 Joseph Barnett
This File is part of "one 2 oh my god"
"one 2 oh my god" is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Free Software Foundation; either version 2 of the License, or
your option) any later version.
"one 2 oh my god" 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with "one 2 oh my god"; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package itunes;
import java.io.*;
import java.util.ArrayList;
import itunes.client.request.Request;
import itunes.client.Song;
/**
* @author jbarnett
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
public class FieldPair {
public String name;
public byte[] value;
public byte[] transmission;
public FieldPair(String name, int value) {
byte[] bytes = new byte[4];
enterInt(bytes, value, 0);
init(name,bytes,0,bytes.length);
}
public FieldPair(String name, Song s, String meta) {
String[] extraTags = meta.split(",");
FieldPair miid = new FieldPair("miid", s.id);
FieldPair minm = new FieldPair("minm", s.getName());
ArrayList songPairs = new ArrayList();
songPairs.add(miid); songPairs.add(minm);
for (int i = 0; i < extraTags.length; i++) {
// add FieldPairs for each meta tag
if (!extraTags[i].equals("dmap.itemid") && !extraTags[i].equals("dmap.itemname")) { //already do these
FieldPair newPair=new FieldPair(lookup(extraTags[i]), lookup(extraTags[i], s));
if (!newPair.name.equals("null"))
songPairs.add(newPair);
}
}
FieldPair[] array = new FieldPair[songPairs.size()];
System.arraycopy(songPairs.toArray(), 0, array, 0, array.length);
byte[] bytes = embed(array);
init(name,bytes,0,bytes.length);
}
public FieldPair(String name, FieldPair[] fields) {
byte[] bytes = embed(fields);
init(name,bytes,0,bytes.length);
}
public FieldPair(String name, byte[] value) {
init(name,value,0,value.length);
}
public FieldPair(String name, byte value) {
byte[] bytes = {value};
init(name,bytes,0,bytes.length);
}
public FieldPair(String name, byte[] value,int offset, int size) {
init(name,value,offset,size);
}
public FieldPair (String name, String value) {
init(name, value.getBytes(), 0, value.getBytes().length);
}
public void init(String name, byte[] value, int offset ,int size) {
this.name = name;
this.value = new byte[size];
try {
ByteArrayInputStream b = new ByteArrayInputStream(value,offset,size);
DataInputStream d = new DataInputStream(b);
d.readFully(this.value);
} catch (IOException e) {
e.printStackTrace();
}
transmission = getDaapBytes();
}
public String toString() {
String ret = name + " ";
for (int i = 0; i < value.length;i++) {
ret+= Integer.toHexString(0xFF&value[i]) + " ";
}
ret += "("+ Request.readString(value,0,value.length)+")";
return ret;
}
private byte[] getDaapBytes() {
byte[] bytes = new byte[4+value.length+name.length()];
System.arraycopy(name.getBytes(), 0, bytes, 0, name.length());
int length = value.length;
byte[] lengthBytes = new byte[4];
lengthBytes[3] = (byte)(length % 256);
length = length / 256;
lengthBytes[2] = (byte)(length % 256);
length = length / 256;
lengthBytes[1] = (byte)(length % 256);
length = length / 256;
lengthBytes[0] = (byte)(length % 256);
System.arraycopy(lengthBytes,0,bytes, name.length(), 4);
System.arraycopy(value, 0, bytes, name.length() + 4, value.length);
return bytes;
}
public boolean equals(Object o) {
if (FieldPair.class.isInstance(o)) {
return (((FieldPair)o).name.equals(this.name));
} else if (String.class.isInstance(o)) {
return ((String)o).equals(this.name);
} else return false;
}
public static void enterInt(byte[] data, int value, int offset) {
int temp = value;
for (int i = offset; i < offset + 4; i++) {
data[offset + 3 - i] = (byte)( temp % 256);
temp = temp / 256;
}
}
private static byte[] embed(FieldPair[] fields) {
int offset = 0;
int length = 0;
for (int i = 0; i < fields.length; i++) {
length += fields[i].transmission.length;
}
byte[] data = new byte[length];
for (int i = 0; i < fields.length; i++) {
System.arraycopy(fields[i].transmission, 0, data, offset, fields[i].transmission.length);
offset += fields[i].transmission.length;
}
return data;
}
private static String lookup(String meta) {
if (meta.equals("daap.songalbum")) {
return "asal";
} else if (meta.equals("daap.songartist")) {
return "asar";
} else if (meta.equals("daap.songtracknumber")) {
return "astn";
} else if (meta.equals("daap.songuserrating")) {
return "asur";
} else if (meta.equals("daap.songgenre")) {
return "asgn";
} else if (meta.equals("daap.songformat")) {
return "asfm";
} else if (meta.equals("daap.songtime")) {
return "astm";
}
return "null";
}
private static byte[] lookup(String meta, Song s) {
if (meta.equals("daap.songalbum")) {
return s.getAlbum().getBytes();
} else if (meta.equals("daap.songartist")) {
return s.getArtist().getBytes();
} else if (meta.equals("daap.songtracknumber")) {
byte[] intBytes = new byte[2];
intBytes[0] = (byte)(s.getTrack() / 256);
intBytes[1] = (byte)(s.getTrack() % 256);
return intBytes;
} else if (meta.equals("daap.songuserrating")) {
byte[] bytes = {(byte)0};
return bytes;
}else if (meta.equals("daap.songgenre")) {
return s.getGenre().getBytes();
} else if (meta.equals("daap.songformat")) {
return "mp3".getBytes();
} else if (meta.equals("daap.songtime")) {
byte[] intBytes = new byte[4];
enterInt(intBytes, s.getTime(), 0);
return intBytes;
}
return new byte[0];
}
}
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