1 /* |
|
2 * Copyright (c) 2016, 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 package jdk.incubator.http.internal.hpack; |
|
26 |
|
27 import java.nio.ByteBuffer; |
|
28 import java.util.Iterator; |
|
29 |
|
30 import static java.util.Objects.requireNonNull; |
|
31 |
|
32 final class BulkSizeUpdateWriter implements BinaryRepresentationWriter { |
|
33 |
|
34 private final SizeUpdateWriter writer = new SizeUpdateWriter(); |
|
35 private Iterator<Integer> maxSizes; |
|
36 private boolean writing; |
|
37 private boolean configured; |
|
38 |
|
39 BulkSizeUpdateWriter maxHeaderTableSizes(Iterable<Integer> sizes) { |
|
40 if (configured) { |
|
41 throw new IllegalStateException("Already configured"); |
|
42 } |
|
43 requireNonNull(sizes, "sizes"); |
|
44 maxSizes = sizes.iterator(); |
|
45 configured = true; |
|
46 return this; |
|
47 } |
|
48 |
|
49 @Override |
|
50 public boolean write(HeaderTable table, ByteBuffer destination) { |
|
51 if (!configured) { |
|
52 throw new IllegalStateException("Configure first"); |
|
53 } |
|
54 while (true) { |
|
55 if (writing) { |
|
56 if (!writer.write(table, destination)) { |
|
57 return false; |
|
58 } |
|
59 writing = false; |
|
60 } else if (maxSizes.hasNext()) { |
|
61 writing = true; |
|
62 writer.reset(); |
|
63 writer.maxHeaderTableSize(maxSizes.next()); |
|
64 } else { |
|
65 configured = false; |
|
66 return true; |
|
67 } |
|
68 } |
|
69 } |
|
70 |
|
71 @Override |
|
72 public BulkSizeUpdateWriter reset() { |
|
73 maxSizes = null; |
|
74 writing = false; |
|
75 configured = false; |
|
76 return this; |
|
77 } |
|
78 } |
|