Showing the changes to java/pkg/com/sun/tools/hat/internal/parser/PositionInputStream.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | + | |
| 27 | +/* | |
| 28 | + * The Original Code is HAT. The Initial Developer of the | |
| 29 | + * Original Code is Bill Foote, with contributions from others | |
| 30 | + * at JavaSoft/Sun. | |
| 31 | + */ | |
| 32 | + | |
| 33 | +package com.sun.tools.hat.internal.parser; | |
| 34 | + | |
| 35 | +import java.io.FilterInputStream; | |
| 36 | +import java.io.IOException; | |
| 37 | +import java.io.InputStream; | |
| 38 | + | |
| 39 | +/** | |
| 40 | + * InputStream that keeps track of total bytes read (in effect | |
| 41 | + * 'position' in stream) from the input stream. | |
| 42 | + * | |
| 43 | + */ | |
| 44 | +public class PositionInputStream extends FilterInputStream { | |
| 45 | + private long position = 0L; | |
| 46 | + | |
| 47 | + public PositionInputStream(InputStream in) { | |
| 48 | + super(in); | |
| 49 | + } | |
| 50 | + | |
| 51 | + public int read() throws IOException { | |
| 52 | + int res = super.read(); | |
| 53 | + if (res != -1) position++; | |
| 54 | + return res; | |
| 55 | + } | |
| 56 | + | |
| 57 | + public int read(byte[] b, int off, int len) throws IOException { | |
| 58 | + int res = super.read(b, off, len); | |
| 59 | + if (res != -1) position += res; | |
| 60 | + return res; | |
| 61 | + } | |
| 62 | + | |
| 63 | + public long skip(long n) throws IOException { | |
| 64 | + long res = super.skip(n); | |
| 65 | + position += res; | |
| 66 | + return res; | |
| 67 | + } | |
| 68 | + | |
| 69 | + public boolean markSupported() { | |
| 70 | + return false; | |
| 71 | + } | |
| 72 | + | |
| 73 | + public void mark(int readLimit) { | |
| 74 | + throw new UnsupportedOperationException("mark"); | |
| 75 | + } | |
| 76 | + | |
| 77 | + public void reset() { | |
| 78 | + throw new UnsupportedOperationException("reset"); | |
| 79 | + } | |
| 80 | + | |
| 81 | + public long position() { | |
| 82 | + return position; | |
| 83 | + } | |
| 84 | +} | |