1 /*
2 * Copyright 2015 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16
17 /*
18 * Copyright 2014 Twitter, Inc.
19 *
20 * Licensed under the Apache License, Version 2.0 (the "License");
21 * you may not use this file except in compliance with the License.
22 * You may obtain a copy of the License at
23 *
24 * https://www.apache.org/licenses/LICENSE-2.0
25 *
26 * Unless required by applicable law or agreed to in writing, software
27 * distributed under the License is distributed on an "AS IS" BASIS,
28 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
29 * See the License for the specific language governing permissions and
30 * limitations under the License.
31 */
32 package io.netty5.handler.codec.http2;
33
34 import static io.netty5.handler.codec.http2.HpackUtil.equalsVariableTime;
35 import static java.util.Objects.requireNonNull;
36
37 class HpackHeaderField {
38
39 // Section 4.1. Calculating Table Size
40 // The additional 32 octets account for an estimated
41 // overhead associated with the structure.
42 static final int HEADER_ENTRY_OVERHEAD = 32;
43
44 static long sizeOf(CharSequence name, CharSequence value) {
45 return name.length() + value.length() + HEADER_ENTRY_OVERHEAD;
46 }
47
48 final CharSequence name;
49 final CharSequence value;
50
51 // This constructor can only be used if name and value are ISO-8859-1 encoded.
52 HpackHeaderField(CharSequence name, CharSequence value) {
53 this.name = requireNonNull(name, "name");
54 this.value = requireNonNull(value, "value");
55 }
56
57 final int size() {
58 return name.length() + value.length() + HEADER_ENTRY_OVERHEAD;
59 }
60
61 public final boolean equalsForTest(HpackHeaderField other) {
62 return equalsVariableTime(name, other.name) && equalsVariableTime(value, other.value);
63 }
64
65 @Override
66 public String toString() {
67 return name + ": " + value;
68 }
69 }