com.netbout.rest.RqWithDefaultHeader Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2016, netbout.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are PROHIBITED without prior written permission from
* the author. This product may NOT be used anywhere and on any computer
* except the server platform of netbout Inc. located at www.netbout.com.
* Federal copyright law prohibits unauthorized reproduction by any means
* and imposes fines up to $25,000 for violation. If you received
* this code accidentally and without intent to use it, please report this
* incident to the author by email.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
package com.netbout.rest;
import java.io.IOException;
import org.takes.Request;
import org.takes.rq.RqHeaders;
import org.takes.rq.RqWithHeader;
import org.takes.rq.RqWrap;
/**
* Request with default header.
* @author Andrey Eliseev ([email protected])
* @version $Id: 04670a9db279a73d9090ab5d7c0346147387f7bb $
* @since 2.17
*/
public final class RqWithDefaultHeader extends RqWrap {
/**
* Ctor.
* @param req Original request
* @param hdr Header name
* @param val Header value
* @throws IOException in case of request errors
*/
public RqWithDefaultHeader(final Request req,
final String hdr, final String val) throws IOException {
super(RqWithDefaultHeader.buildRequest(req, hdr, val));
}
/**
* Builds the request with the default header if it is not already present.
* @param req Original request.
* @param hdr Header name.
* @param val Header value.
* @return The new request.
* @throws IOException in case of request errors
*/
private static Request buildRequest(final Request req,
final String hdr, final String val) throws IOException {
final Request request;
if (new RqHeaders.Base(req).header(hdr).iterator().hasNext()) {
request = req;
} else {
request = new RqWithHeader(req, hdr, val);
}
return request;
}
}