public long skip(long l)
throws IOException
{
long l1 = in.tell();
long l2 = in.length() - l1;
if (l2 > l)
{
in.seek(l);
return in.tell() - l1;
} else
{
in.seek(l2);
return in.tell() - l1;
}
}
public void seek(long l)
throws IOException
{
if (l < 0L)
{
throw new IOException((new StringBuilder()).append("Illegal seek: ").append(l).toString());
} else
{
in.seek(l);
return;
}
}
public static FileReader openReader(SeekableInput seekableinput, DatumReader datumreader)
throws IOException
{
if (seekableinput.length() < (long)DataFileConstants.MAGIC.length)
{
throw new IOException("Not an Avro data file");
}
byte abyte0[] = new byte[DataFileConstants.MAGIC.length];
seekableinput.seek(0L);
for (int i = 0; i < abyte0.length; i = seekableinput.read(abyte0, i, abyte0.length - i)) { }
seekableinput.seek(0L);
if (Arrays.equals(DataFileConstants.MAGIC, abyte0))
{
return new DataFileReader(seekableinput, datumreader);
}
if (Arrays.equals(DataFileReader12.MAGIC, abyte0))
{
return new DataFileReader12(seekableinput, datumreader);
} else
{
throw new IOException("Not an Avro data file");
}
}