1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.commons.compress.archivers.tar;
20
21 import java.io.InputStream;
22
23 /**
24 * This is an InputStream that always return 0, this is used when reading the "holes" of a sparse file
25 */
26 final class TarArchiveSparseZeroInputStream extends InputStream {
27
28 /**
29 * Returns 0.
30 *
31 * @return 0.
32 */
33 @Override
34 public int read() {
35 return 0;
36 }
37
38 /**
39 * Returns the input.
40 *
41 * @param n bytes to skip
42 * @return bytes actually skipped
43 */
44 @Override
45 public long skip(final long n) {
46 return n;
47 }
48 }