1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.core5.http2.frame;
29
30 /**
31 * HTTP/2 stream ID generator.
32 *
33 * @since 5.0
34 */
35 public interface StreamIdGenerator {
36
37 int generate(int previousMax);
38
39 boolean isSameSide(int streamId);
40
41 StreamIdGeneratore/StreamIdGenerator.html#StreamIdGenerator">StreamIdGenerator ODD = new StreamIdGenerator() {
42
43 @Override
44 public int generate(final int previousMax) {
45 int i = previousMax + 1;
46 if (i % 2 == 0) {
47 i++;
48 }
49 return i;
50 }
51
52 @Override
53 public boolean isSameSide(final int streamId) {
54 return (streamId & 1) == 1;
55 }
56
57 };
58
59 StreamIdGenerator/StreamIdGenerator.html#StreamIdGenerator">StreamIdGenerator EVEN = new StreamIdGenerator() {
60
61 @Override
62 public int generate(final int previousMax) {
63 int i = previousMax + 1;
64 if (i % 2 == 1) {
65 i++;
66 }
67 return i;
68 }
69
70 @Override
71 public boolean isSameSide(final int streamId) {
72 return (streamId & 1) == 0;
73 }
74
75 };
76
77 }