forked from spring-projects/spring-framework
/
MockClientHttpRequest.java
167 lines (136 loc) · 4.82 KB
/
MockClientHttpRequest.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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/*
* Copyright 2002-2020 the original author or authors.
*
* Licensed 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 org.springframework.web.testfixture.http.client.reactive;
import java.net.URI;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Collection;
import java.util.Optional;
import java.util.function.Function;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.core.io.buffer.DefaultDataBufferFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.reactive.AbstractClientHttpRequest;
import org.springframework.http.client.reactive.ClientHttpRequest;
import org.springframework.util.Assert;
import org.springframework.util.MimeType;
import org.springframework.web.util.UriComponentsBuilder;
/**
* Mock implementation of {@link ClientHttpRequest}.
*
* @author Brian Clozel
* @author Rossen Stoyanchev
* @since 5.0
*/
public class MockClientHttpRequest extends AbstractClientHttpRequest implements HttpRequest {
private final HttpMethod httpMethod;
private final URI url;
private final DataBufferFactory bufferFactory = new DefaultDataBufferFactory();
private Flux<DataBuffer> body = Flux.error(
new IllegalStateException("The body is not set. " +
"Did handling complete with success? Is a custom \"writeHandler\" configured?"));
private Function<Flux<DataBuffer>, Mono<Void>> writeHandler;
public MockClientHttpRequest(HttpMethod httpMethod, String urlTemplate, Object... vars) {
this(httpMethod, UriComponentsBuilder.fromUriString(urlTemplate).buildAndExpand(vars).encode().toUri());
}
public MockClientHttpRequest(HttpMethod httpMethod, URI url) {
this.httpMethod = httpMethod;
this.url = url;
this.writeHandler = body -> {
this.body = body.cache();
return this.body.then();
};
}
/**
* Configure a custom handler for writing the request body.
*
* <p>The default write handler consumes and caches the request body so it
* may be accessed subsequently, e.g. in test assertions. Use this property
* when the request body is an infinite stream.
*
* @param writeHandler the write handler to use returning {@code Mono<Void>}
* when the body has been "written" (i.e. consumed).
*/
public void setWriteHandler(Function<Flux<DataBuffer>, Mono<Void>> writeHandler) {
Assert.notNull(writeHandler, "'writeHandler' is required");
this.writeHandler = writeHandler;
}
@Override
public HttpMethod getMethod() {
return this.httpMethod;
}
@Override
public String getMethodValue() {
return this.httpMethod.name();
}
@Override
public URI getURI() {
return this.url;
}
@Override
public DataBufferFactory bufferFactory() {
return this.bufferFactory;
}
@Override
protected void applyHeaders() {
}
@Override
protected void applyCookies() {
getCookies().values().stream().flatMap(Collection::stream)
.forEach(cookie -> getHeaders().add(HttpHeaders.COOKIE, cookie.toString()));
}
@Override
public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
return doCommit(() -> Mono.defer(() -> this.writeHandler.apply(Flux.from(body))));
}
@Override
public Mono<Void> writeAndFlushWith(Publisher<? extends Publisher<? extends DataBuffer>> body) {
return writeWith(Flux.from(body).flatMap(p -> p));
}
@Override
public Mono<Void> setComplete() {
return writeWith(Flux.empty());
}
/**
* Return the request body, or an error stream if the body was never set
* or when {@link #setWriteHandler} is configured.
*/
public Flux<DataBuffer> getBody() {
return this.body;
}
/**
* Aggregate response data and convert to a String using the "Content-Type"
* charset or "UTF-8" by default.
*/
public Mono<String> getBodyAsString() {
Charset charset = Optional.ofNullable(getHeaders().getContentType()).map(MimeType::getCharset)
.orElse(StandardCharsets.UTF_8);
return DataBufferUtils.join(getBody())
.map(buffer -> {
String s = buffer.toString(charset);
DataBufferUtils.release(buffer);
return s;
})
.defaultIfEmpty("");
}
}