1 /*
2 * Copyright (c) 2009, 2017, 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 package jdk.nio.zipfs;
27
28 import java.nio.ByteBuffer;
29 import java.nio.CharBuffer;
30 import java.nio.charset.Charset;
31 import java.nio.charset.CharsetDecoder;
32 import java.nio.charset.CharsetEncoder;
33 import java.nio.charset.CoderResult;
34 import java.nio.charset.CodingErrorAction;
35 import java.util.Arrays;
36
37 import static java.nio.charset.StandardCharsets.UTF_8;
38 import static java.nio.charset.StandardCharsets.ISO_8859_1;
39
40 /**
41 * Utility class for zipfile name and comment decoding and encoding
42 *
43 * @author Xueming Shen
44 */
45
46 class ZipCoder {
47
48 static class UTF8 extends ZipCoder {
49 UTF8() {
50 super(UTF_8);
51 }
52
53 @Override
54 byte[] getBytes(String s) { // fast pass for ascii
55 for (int i = 0; i < s.length(); i++) {
56 if (s.charAt(i) > 0x7f) return super.getBytes(s);
57 }
58 return s.getBytes(ISO_8859_1);
59 }
60
61 @Override
62 String toString(byte[] ba) {
63 for (byte b : ba) {
64 if (b < 0) return super.toString(ba);
65 }
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1 /*
2 * Copyright (c) 2009, 2018, 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 package jdk.nio.zipfs;
27
28 import static java.nio.charset.StandardCharsets.ISO_8859_1;
29 import static java.nio.charset.StandardCharsets.UTF_8;
30
31 import java.nio.ByteBuffer;
32 import java.nio.CharBuffer;
33 import java.nio.charset.Charset;
34 import java.nio.charset.CharsetDecoder;
35 import java.nio.charset.CharsetEncoder;
36 import java.nio.charset.CoderResult;
37 import java.nio.charset.CodingErrorAction;
38 import java.util.Arrays;
39
40 /**
41 * Utility class for zipfile name and comment decoding and encoding
42 *
43 * @author Xueming Shen
44 */
45 class ZipCoder {
46
47 static class UTF8 extends ZipCoder {
48 UTF8() {
49 super(UTF_8);
50 }
51
52 @Override
53 byte[] getBytes(String s) { // fast pass for ascii
54 for (int i = 0; i < s.length(); i++) {
55 if (s.charAt(i) > 0x7f) return super.getBytes(s);
56 }
57 return s.getBytes(ISO_8859_1);
58 }
59
60 @Override
61 String toString(byte[] ba) {
62 for (byte b : ba) {
63 if (b < 0) return super.toString(ba);
64 }
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