src/main/java/org/takes/rs/RsWithHeaders.java
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2024 Yegor Bugayenko
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.takes.rs;
import java.io.IOException;
import java.util.Arrays;
import lombok.EqualsAndHashCode;
import lombok.ToString;
import org.takes.Response;
/**
* Response decorator, with an additional headers.
*
* <p>The class is immutable and thread-safe.
*
* @since 0.1
*/
@ToString(callSuper = true)
@EqualsAndHashCode(callSuper = true)
public final class RsWithHeaders extends RsWrap {
/**
* Ctor.
* @param headers Headers
*/
public RsWithHeaders(final Iterable<? extends CharSequence> headers) {
this(new RsEmpty(), headers);
}
/**
* Ctor.
* @param res Original response
* @param headers Headers
*/
public RsWithHeaders(final Response res, final CharSequence... headers) {
this(res, Arrays.asList(headers));
}
/**
* Ctor.
* @param res Original response
* @param headers Headers
*/
public RsWithHeaders(final Response res,
final Iterable<? extends CharSequence> headers) {
super(
new ResponseOf(
() -> RsWithHeaders.extend(res, headers),
res::body
)
);
}
/**
* Add to head additional headers.
* @param res Original response
* @param headers Values witch will be added to head
* @return Head with additional headers
* @throws IOException If fails
*/
@SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
private static Iterable<String> extend(final Response res,
final Iterable<? extends CharSequence> headers) throws IOException {
Response resp = res;
for (final CharSequence hdr : headers) {
resp = new RsWithHeader(resp, hdr);
}
return resp.head();
}
}