author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 42460 | jdk/src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/internal/hpack/StringReader.java@7133f144981a |
child 48083 | b1c1b4ef4be2 |
permissions | -rw-r--r-- |
42460
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
1 |
/* |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
2 |
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
4 |
* |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
5 |
* This code is free software; you can redistribute it and/or modify it |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
7 |
* published by the Free Software Foundation. Oracle designates this |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
8 |
* particular file as subject to the "Classpath" exception as provided |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
9 |
* by Oracle in the LICENSE file that accompanied this code. |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
10 |
* |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
15 |
* accompanied this code). |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
16 |
* |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
17 |
* You should have received a copy of the GNU General Public License version |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation, |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
20 |
* |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
22 |
* or visit www.oracle.com if you need additional information or have any |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
23 |
* questions. |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
24 |
*/ |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
25 |
package jdk.incubator.http.internal.hpack; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
26 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
27 |
import java.nio.ByteBuffer; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
28 |
import java.util.Arrays; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
29 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
30 |
// |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
31 |
// 0 1 2 3 4 5 6 7 |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
32 |
// +---+---+---+---+---+---+---+---+ |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
33 |
// | H | String Length (7+) | |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
34 |
// +---+---------------------------+ |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
35 |
// | String Data (Length octets) | |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
36 |
// +-------------------------------+ |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
37 |
// |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
38 |
final class StringReader { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
39 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
40 |
private static final int NEW = 0; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
41 |
private static final int FIRST_BYTE_READ = 1; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
42 |
private static final int LENGTH_READ = 2; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
43 |
private static final int DONE = 4; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
44 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
45 |
private final IntegerReader intReader = new IntegerReader(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
46 |
private final Huffman.Reader huffmanReader = new Huffman.Reader(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
47 |
private final ISO_8859_1.Reader plainReader = new ISO_8859_1.Reader(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
48 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
49 |
private int state = NEW; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
50 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
51 |
private boolean huffman; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
52 |
private int remainingLength; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
53 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
54 |
boolean read(ByteBuffer input, Appendable output) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
55 |
if (state == DONE) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
56 |
return true; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
57 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
58 |
if (!input.hasRemaining()) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
59 |
return false; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
60 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
61 |
if (state == NEW) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
62 |
int p = input.position(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
63 |
huffman = (input.get(p) & 0b10000000) != 0; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
64 |
state = FIRST_BYTE_READ; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
65 |
intReader.configure(7); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
66 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
67 |
if (state == FIRST_BYTE_READ) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
68 |
boolean lengthRead = intReader.read(input); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
69 |
if (!lengthRead) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
70 |
return false; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
71 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
72 |
remainingLength = intReader.get(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
73 |
state = LENGTH_READ; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
74 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
75 |
if (state == LENGTH_READ) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
76 |
boolean isLast = input.remaining() >= remainingLength; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
77 |
int oldLimit = input.limit(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
78 |
if (isLast) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
79 |
input.limit(input.position() + remainingLength); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
80 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
81 |
remainingLength -= Math.min(input.remaining(), remainingLength); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
82 |
if (huffman) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
83 |
huffmanReader.read(input, output, isLast); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
84 |
} else { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
85 |
plainReader.read(input, output); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
86 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
87 |
if (isLast) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
88 |
input.limit(oldLimit); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
89 |
state = DONE; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
90 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
91 |
return isLast; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
92 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
93 |
throw new InternalError(Arrays.toString( |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
94 |
new Object[]{state, huffman, remainingLength})); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
95 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
96 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
97 |
boolean isHuffmanEncoded() { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
98 |
if (state < FIRST_BYTE_READ) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
99 |
throw new IllegalStateException("Has not been fully read yet"); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
100 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
101 |
return huffman; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
102 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
103 |
|
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
104 |
void reset() { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
105 |
if (huffman) { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
106 |
huffmanReader.reset(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
107 |
} else { |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
108 |
plainReader.reset(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
109 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
110 |
intReader.reset(); |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
111 |
state = NEW; |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
112 |
} |
7133f144981a
8170648: Move java.net.http package out of Java SE to incubator namespace
michaelm
parents:
diff
changeset
|
113 |
} |