72 lines
1.6 KiB
Java
72 lines
1.6 KiB
Java
/*
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CountingStream.java
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*
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* Copyright (c) 2001, Ted Nelson and Tuomas Lukka
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*
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* You may use and distribute under the terms of either the GNU Lesser
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* General Public License, either version 2 of the license or,
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* at your choice, any later version. Alternatively, you may use and
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* distribute under the terms of the XPL.
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*
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* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
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* the licenses.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
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* file for more details.
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*
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*/
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/*
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* Written by Tuomas Lukka
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*/
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package org.gzigzag;
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import java.awt.*;
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import java.util.*;
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import java.io.*;
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/** Something Java should have: we conut our position in the stream.
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*/
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public class CountingStream extends FilterInputStream {
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int curPos = 0;
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public CountingStream(InputStream is) {
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super(is);
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}
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public int read() throws IOException {
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int c = super.read();
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curPos++;
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return c;
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}
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public int read(byte b[]) throws IOException {
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int n = super.read(b);
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if(n < 0) return n;
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curPos += n;
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return n;
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}
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public int read(byte b[],
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int off,
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int len) throws IOException {
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int n = super.read(b, off, len);
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if(n < 0) return n;
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curPos += n;
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return n;
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}
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public long skip(long n) throws IOException {
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long ns = super.skip(n);
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curPos += ns;
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return ns;
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}
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public int getCount() {
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return curPos;
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}
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}
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