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comparison src/goodjava/io/CountingInputStream.java @ 1494:91c167099462

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more io
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 03 May 2020 11:51:31 -0600
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1493:471ef3e6a84e 1494:91c167099462
1 package goodjava.io;
2
3 import java.io.InputStream;
4 import java.io.IOException;
5
6
7 public final class CountingInputStream extends NoMarkInputStream {
8 private long count = 0;
9
10 public CountingInputStream(InputStream in) {
11 super(in);
12 }
13
14 public long count() {
15 return count;
16 }
17
18 public int read() throws IOException {
19 int n = in.read();
20 if( n != -1 )
21 count++;
22 return n;
23 }
24
25 public int read(byte[] b, int off, int len) throws IOException {
26 int n = in.read(b,off,len);
27 if( n != -1 )
28 count += n;
29 return n;
30 }
31
32 public long skip(long n) throws IOException {
33 n = in.skip(n);
34 if( n != -1 )
35 count += n;
36 return n;
37 }
38
39 }