1/*
2 * Copyright (C) 2013 Square, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://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,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package com.squareup.okhttp.internal.spdy;
17
18enum HeadersMode {
19  SPDY_SYN_STREAM,
20  SPDY_REPLY,
21  SPDY_HEADERS,
22  HTTP_20_HEADERS;
23
24  /** Returns true if it is an error these headers to create a new stream. */
25  public boolean failIfStreamAbsent() {
26    return this == SPDY_REPLY || this == SPDY_HEADERS;
27  }
28
29  /** Returns true if it is an error these headers to update an existing stream. */
30  public boolean failIfStreamPresent() {
31    return this == SPDY_SYN_STREAM;
32  }
33
34  /**
35   * Returns true if it is an error these headers to be the initial headers of a
36   * response.
37   */
38  public boolean failIfHeadersAbsent() {
39    return this == SPDY_HEADERS;
40  }
41
42  /**
43   * Returns true if it is an error these headers to be update existing headers
44   * of a response.
45   */
46  public boolean failIfHeadersPresent() {
47    return this == SPDY_REPLY;
48  }
49}
50