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package org.simpleframework.http.core;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class Chunker extends FilterOutputStream {
private byte[] size = {'0', '0', '0', '0', '0',
'0', '0', '0', 13, 10};
private byte[] index = {'0', '1', '2', '3', '4', '5','6', '7',
'8', '9', 'a', 'b', 'c', 'd','e', 'f'};
private byte[] zero = {'0', 13, 10, 13, 10};
public Chunker(OutputStream out){
super(out);
}
public void write(int octet) throws IOException {
byte[] swap = new byte[1];
swap[0] = (byte)octet;
write(swap);
}
public void write(byte[] buf, int off, int len) throws IOException {
int pos = 7;
if(len > 0) {
for(int num = len; num > 0; num >>>= 4){
size[pos--] = index[num & 0xf];
}
String text = String.format("%s; %s\r\n", Integer.toHexString(len), len);
out.write(text.getBytes("ISO-8859-1"));
out.write(buf, off, len);
out.write(size, 8, 2);
}
}
public void close() throws IOException {
out.write(zero);
out.close();
}
}
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