-
Notifications
You must be signed in to change notification settings - Fork 1.9k
Expand file tree
/
Copy pathResponse.java
More file actions
385 lines (325 loc) · 9.92 KB
/
Response.java
File metadata and controls
385 lines (325 loc) · 9.92 KB
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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
/*
* Copyright © 2012 The Feign Authors (feign@commonhaus.dev)
*
* 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
*
* http://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 feign;
import static feign.Util.*;
import feign.Request.ProtocolVersion;
import java.io.*;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.*;
/** An immutable response to an http invocation which only returns string content. */
public final class Response implements Closeable {
private final int status;
private final String reason;
private final Map<String, Collection<String>> headers;
private final Body body;
private final Request request;
private final ProtocolVersion protocolVersion;
private Response(Builder builder) {
checkState(builder.request != null, "original request is required");
this.status = builder.status;
this.request = builder.request;
this.reason = builder.reason; // nullable
this.headers = caseInsensitiveCopyOf(builder.headers);
this.body = builder.body; // nullable
this.protocolVersion = builder.protocolVersion;
}
public Builder toBuilder() {
return new Builder(this);
}
public static Builder builder() {
return new Builder();
}
public static final class Builder {
private static final ProtocolVersion DEFAULT_PROTOCOL_VERSION = ProtocolVersion.HTTP_1_1;
int status;
String reason;
Map<String, Collection<String>> headers;
Body body;
Request request;
private RequestTemplate requestTemplate;
private ProtocolVersion protocolVersion = DEFAULT_PROTOCOL_VERSION;
Builder() {}
Builder(Response source) {
this.status = source.status;
this.reason = source.reason;
this.headers = source.headers;
this.body = source.body;
this.request = source.request;
this.protocolVersion = source.protocolVersion;
}
/**
* @see Response#status
*/
public Builder status(int status) {
this.status = status;
return this;
}
/**
* @see Response#reason
*/
public Builder reason(String reason) {
this.reason = reason;
return this;
}
/**
* @see Response#headers
*/
public Builder headers(Map<String, Collection<String>> headers) {
this.headers = headers;
return this;
}
/**
* @see Response#body
*/
public Builder body(Body body) {
this.body = body;
return this;
}
/**
* @see Response#body
*/
public Builder body(InputStream inputStream, Integer length) {
this.body = InputStreamBody.orNull(inputStream, length);
return this;
}
/**
* @see Response#body
*/
public Builder body(byte[] data) {
this.body = ByteArrayBody.orNull(data);
return this;
}
/**
* @see Response#body
*/
public Builder body(String text, Charset charset) {
this.body = ByteArrayBody.orNull(text, charset);
return this;
}
/**
* @see Response#request
*/
public Builder request(Request request) {
checkNotNull(request, "request is required");
this.request = request;
return this;
}
/** HTTP protocol version */
public Builder protocolVersion(ProtocolVersion protocolVersion) {
this.protocolVersion = (protocolVersion != null) ? protocolVersion : DEFAULT_PROTOCOL_VERSION;
return this;
}
/**
* The Request Template used for the original request.
*
* @param requestTemplate used.
* @return builder reference.
*/
@Experimental
public Builder requestTemplate(RequestTemplate requestTemplate) {
this.requestTemplate = requestTemplate;
return this;
}
public Response build() {
return new Response(this);
}
}
/**
* status code. ex {@code 200}
*
* <p>See <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html" >rfc2616</a>
*/
public int status() {
return status;
}
/**
* Nullable and not set when using http/2 See <a
* href="https://github.com/http2/http2-spec/issues/202">...</a> See <a
* href="https://github.com/http2/http2-spec/issues/202">...</a>
*/
public String reason() {
return reason;
}
F524
/** Returns a case-insensitive mapping of header names to their values. */
public Map<String, Collection<String>> headers() {
return headers;
}
/** if present, the response had a body */
public Body body() {
return body;
}
/** the request that generated this response */
public Request request() {
return request;
}
/**
* the HTTP protocol version
*
* @return HTTP protocol version or empty if a client does not provide it
*/
public ProtocolVersion protocolVersion() {
return protocolVersion;
}
/**
* Returns a charset object based on the requests content type. Defaults to UTF-8 See <a
* href="https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.3">rfc7231 - Accept-Charset</a>
* See <a href="https://datatracker.ietf.org/doc/html/rfc7231#section-3.1.1.1">rfc7231 - Media
* Type</a>
*/
public Charset charset() {
Collection<String> contentTypeHeaders = headers().get("Content-Type");
if (contentTypeHeaders != null) {
for (String contentTypeHeader : contentTypeHeaders) {
String[] contentTypeParmeters = contentTypeHeader.split(";");
if (contentTypeParmeters.length > 1) {
String[] charsetParts = contentTypeParmeters[1].split("=");
if (charsetParts.length == 2 && "charset".equalsIgnoreCase(charsetParts[0].trim())) {
String charsetString = charsetParts[1].replaceAll("\"", "");
return Charset.forName(charsetString);
}
}
}
}
return Util.UTF_8;
}
@Override
public String toString() {
StringBuilder builder =
new StringBuilder(protocolVersion.toString()).append(" ").append(status);
if (reason != null) builder.append(' ').append(reason);
builder.append('\n');
for (String field : headers.keySet()) {
for (String value : valuesOrEmpty(headers, field)) {
builder.append(field).append(": ").append(value).append('\n');
}
}
if (body != null) builder.append('\n').append(body);
return builder.toString();
}
@Override
public void close() {
Util.ensureClosed(body);
}
public interface Body extends Closeable {
/**
* length in bytes, if known. Null if unknown or greater than {@link Integer#MAX_VALUE}. <br>
* <br>
* <br>
* <b>Note</b><br>
* This is an integer as most implementations cannot do bodies greater than 2GB.
*/
Integer length();
/** True if {@link #asInputStream()} and {@link #asReader()} can be called more than once. */
boolean isRepeatable();
/** It is the responsibility of the caller to close the stream. */
InputStream asInputStream() throws IOException;
/**
* It is the responsibility of the caller to close the stream.
*
* @deprecated favor {@link Body#asReader(Charset)}
*/
@Deprecated
default Reader asReader() throws IOException {
return asReader(StandardCharsets.UTF_8);
}
/** It is the responsibility of the caller to close the stream. */
Reader asReader(Charset charset) throws IOException;
}
private static final class InputStreamBody implements Response.Body {
private final InputStream inputStream;
private final Integer length;
private InputStreamBody(InputStream inputStream, Integer length) {
this.inputStream = inputStream;
this.length = length;
}
private static Body orNull(InputStream inputStream, Integer length) {
if (inputStream == null) {
return null;
}
return new InputStreamBody(inputStream, length);
}
@Override
public Integer length() {
return length;
}
@Override
public boolean isRepeatable() {
return false;
}
@Override
public InputStream asInputStream() {
return inputStream;
}
@SuppressWarnings("deprecation")
@Override
public Reader asReader() {
return new InputStreamReader(inputStream, UTF_8);
}
@Override
public Reader asReader(Charset charset) {
checkNotNull(charset, "charset should not be null");
return new InputStreamReader(inputStream, charset);
}
@Override
public void close() throws IOException {
inputStream.close();
}
}
private static final class ByteArrayBody implements Response.Body {
private final byte[] data;
public ByteArrayBody(byte[] data) {
this.data = data;
}
private static Body orNull(byte[] data) {
if (data == null) {
return null;
}
return new ByteArrayBody(data);
}
private static Body orNull(String text, Charset charset) {
if (text == null) {
return null;
}
checkNotNull(charset, "charset");
return new ByteArrayBody(text.getBytes(charset));
}
@Override
public Integer length() {
return data.length;
}
@Override
public boolean isRepeatable() {
return true;
}
@Override
public InputStream asInputStream() {
return new ByteArrayInputStream(data);
}
@SuppressWarnings("deprecation")
@Override
public Reader asReader() {
return new InputStreamReader(asInputStream(), UTF_8);
}
@Override
public Reader asReader(Charset charset) {
checkNotNull(charset, "charset should not be null");
return new InputStreamReader(asInputStream(), charset);
}
@Override
public void close() {}
}
}