diff options
Diffstat (limited to 'songdbj/FileEntry.java')
| -rw-r--r-- | songdbj/FileEntry.java | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/songdbj/FileEntry.java b/songdbj/FileEntry.java new file mode 100644 index 0000000..9af5b3d --- /dev/null +++ b/songdbj/FileEntry.java @@ -0,0 +1,155 @@ +import java.io.*; + +public class FileEntry extends Entry implements Comparable { + protected String filename; + protected int hash; + protected SongEntry sentry; + protected RundbEntry rentry; + protected File file; + + public FileEntry(File f) throws FileNotFoundException, IOException { + filename=convertPath(f.getAbsolutePath()); + file=f; + sentry=null; + rentry=null; + } + + public int compareTo(Object o) { + return String.CASE_INSENSITIVE_ORDER.compare(filename,((FileEntry)o).getFilename()); + } + + public String getFilename() { return filename; } + + public File getFile() { return file; } + + protected void calcHash() throws FileNotFoundException, IOException { + DataInputStream r = new DataInputStream(new FileInputStream(file)); + byte[] buf = new byte[32768]; + if(sentry!=null) + r.skip(sentry.getFirstFrameOffset()); + r.read(buf); + hash=CalcCRC32(buf); + r.close(); + } + + public int getHash() { return hash; } + + public static String add(String t) { + String add=TagDatabase.getInstance().add; + if(add!=null) + return add+t; + else + return t; + } + + public static String convertPath(String t) { + String temp = add(strip(t)).replace('\\','/'); + if (temp.charAt(0)!='/') + temp="/"+temp; + return temp; + } + + public static String strip(String t) { + return stripPrefix(stripDriveletter(stripPrefix(t))); + } + + public static String stripPrefix(String t) { + String prefix=TagDatabase.getInstance().strip; + if(prefix!=null&&t.toLowerCase().startsWith(prefix.toLowerCase())) { + return t.substring(prefix.length()); + } + return t; + } + + public static String stripDriveletter(String t) { + if(t.indexOf(':')==1) { // second char is ':' + return t.substring(2); + } + return t; + } + + public void setSongEntry(SongEntry e) { sentry=e; try { calcHash(); } catch(Exception d) { } } + public void setRundbEntry(RundbEntry e) { rentry=e; } + public SongEntry getSongEntry() { return sentry; } + public RundbEntry getRundbEntry() { return rentry; } + public int getSongEntryOffset() { + if(sentry!=null) + return sentry.getOffset(); + else + return -1; + } + public int getRundbEntryOffset() { +/* if(rentry!=null) + return rentry.getOffset(); + else*/ + return -1; + } + public void write(DataOutputStream w) throws IOException { + String name=getFilename(); + w.writeBytes(name); + for(int x=TagDatabase.getInstance().filelen-name.length();x>0;x--) + w.write(0); + w.writeInt(hash); + w.writeInt(getSongEntryOffset()); + w.writeInt(getRundbEntryOffset()); + } + + public static int entrySize() { + return TagDatabase.getInstance().filelen+12; + } + + static final int crc_table[] = + { // CRC32 lookup table for polynomial 0x04C11DB7 + 0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B, + 0x1A864DB2, 0x1E475005, 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, + 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD, 0x4C11DB70, 0x48D0C6C7, + 0x4593E01E, 0x4152FDA9, 0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75, + 0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3, + 0x709F7B7A, 0x745E66CD, 0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039, + 0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5, 0xBE2B5B58, 0xBAEA46EF, + 0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D, + 0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 0xC7361B4C, 0xC3F706FB, + 0xCEB42022, 0xCA753D95, 0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, + 0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D, 0x34867077, 0x30476DC0, + 0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072, + 0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 0x018AEB13, 0x054BF6A4, + 0x0808D07D, 0x0CC9CDCA, 0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE, + 0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02, 0x5E9F46BF, 0x5A5E5B08, + 0x571D7DD1, 0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA, + 0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B, 0xBB60ADFC, + 0xB6238B25, 0xB2E29692, 0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6, + 0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A, 0xE0B41DE7, 0xE4750050, + 0xE9362689, 0xEDF73B3E, 0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2, + 0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34, + 0xDC3ABDED, 0xD8FBA05A, 0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637, + 0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB, 0x4F040D56, 0x4BC510E1, + 0x46863638, 0x42472B8F, 0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53, + 0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5, + 0x3F9B762C, 0x3B5A6B9B, 0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF, + 0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623, 0xF12F560E, 0xF5EE4BB9, + 0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B, + 0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD, + 0xCDA1F604, 0xC960EBB3, 0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, + 0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B, 0x9B3660C6, 0x9FF77D71, + 0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3, + 0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 0x4E8EE645, 0x4A4FFBF2, + 0x470CDD2B, 0x43CDC09C, 0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8, + 0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24, 0x119B4BE9, 0x155A565E, + 0x18197087, 0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC, + 0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D, 0x2056CD3A, + 0x2D15EBE3, 0x29D4F654, 0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0, + 0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C, 0xE3A1CBC1, 0xE760D676, + 0xEA23F0AF, 0xEEE2ED18, 0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4, + 0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662, + 0x933EB0BB, 0x97FFAD0C, 0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668, + 0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4 + }; + + public static int CalcCRC32(byte[] buf) { + int i; + int crc = 0xffffffff; + for (i = 0; i < buf.length; i++) + crc = (crc << 8) ^ crc_table[(int)((crc >> 24) ^ buf[i]) & 0xFF]; + return crc; + } +}
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