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Request.java
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/**
* Copyright 2012-2018 The Feign 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
*
* 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 java.net.HttpURLConnection;
import java.nio.charset.Charset;
import java.util.Collection;
import java.util.Map;
import static feign.Util.checkNotNull;
import static feign.Util.valuesOrEmpty;
/**
* An immutable request to an http server.
*/
public final class Request {
/**
* No parameters can be null except {@code body} and {@code charset}. All parameters must be
* effectively immutable, via safe copies, not mutating or otherwise.
*/
public static Request create(String method,
String url,
Map<String, Collection<String>> headers,
byte[] body,
Charset charset) {
return new Request(method, url, headers, body, charset);
}
private final String method;
private final String url;
private final Map<String, Collection<String>> headers;
private final byte[] body;
private final Charset charset;
Request(String method, String url, Map<String, Collection<String>> headers, byte[] body,
Charset charset) {
this.method = checkNotNull(method, "method of %s", url);
this.url = checkNotNull(url, "url");
this.headers = checkNotNull(headers, "headers of %s %s", method, url);
this.body = body; // nullable
this.charset = charset; // nullable
}
/* Method to invoke on the server. */
public String method() {
return method;
}
/* Fully resolved URL including query. */
public String url() {
return url;
}
/* Ordered list of headers that will be sent to the server. */
public Map<String, Collection<String>> headers() {
return headers;
}
/**
* The character set with which the body is encoded, or null if unknown or not applicable. When
* this is present, you can use {@code new String(req.body(), req.charset())} to access the body
* as a String.
*/
public Charset charset() {
return charset;
}
/**
* If present, this is the replayable body to send to the server. In some cases, this may be
* interpretable as text.
*
* @see #charset()
*/
public byte[] body() {
return body;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append(method).append(' ').append(url).append(" HTTP/1.1\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(charset != null ? new String(body, charset) : "Binary data");
}
return builder.toString();
}
/*
* Controls the per-request settings currently required to be implemented by all {@link Client
* clients}
*/
public static class Options {
private final int connectTimeoutMillis;
private final int readTimeoutMillis;
private final boolean followRedirects;
public Options(int connectTimeoutMillis, int readTimeoutMillis, boolean followRedirects) {
this.connectTimeoutMillis = connectTimeoutMillis;
this.readTimeoutMillis = readTimeoutMillis;
this.followRedirects = followRedirects;
}
public Options(int connectTimeoutMillis, int readTimeoutMillis) {
this(connectTimeoutMillis, readTimeoutMillis, true);
}
public Options() {
this(10 * 1000, 60 * 1000);
}
/**
* Defaults to 10 seconds. {@code 0} implies no timeout.
*
* @see java.net.HttpURLConnection#getConnectTimeout()
*/
public int connectTimeoutMillis() {
return connectTimeoutMillis;
}
/**
* Defaults to 60 seconds. {@code 0} implies no timeout.
*
* @see java.net.HttpURLConnection#getReadTimeout()
*/
public int readTimeoutMillis() {
return readTimeoutMillis;
}
/**
* Defaults to true. {@code false} tells the client to not follow the redirections.
*
* @see HttpURLConnection#getFollowRedirects()
*/
public boolean isFollowRedirects() {
return followRedirects;
}
}
}