forked from line/armeria
-
Notifications
You must be signed in to change notification settings - Fork 7
/
DefaultHttpHeadersBuilder.java
49 lines (43 loc) · 1.61 KB
/
DefaultHttpHeadersBuilder.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
/*
* Copyright 2019 LINE Corporation
*
* LINE Corporation licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package com.linecorp.armeria.common;
final class DefaultHttpHeadersBuilder
extends AbstractHttpHeadersBuilder<DefaultHttpHeadersBuilder>
implements HttpHeadersBuilder {
DefaultHttpHeadersBuilder() {}
DefaultHttpHeadersBuilder(HttpHeadersBase parent) {
super(parent);
}
@Override
public HttpHeaders build() {
final HttpHeadersBase delegate = delegate();
if (delegate != null) {
if (delegate.isEmpty()) {
return delegate.isEndOfStream() ? DefaultHttpHeaders.EMPTY_EOS : DefaultHttpHeaders.EMPTY;
} else {
return new DefaultHttpHeaders(promoteDelegate());
}
}
final HttpHeadersBase parent = parent();
if (parent != null) {
if (parent instanceof HttpHeaders) {
return (HttpHeaders) parent;
}
return updateParent(new DefaultHttpHeaders(parent));
}
return DefaultHttpHeaders.EMPTY;
}
}