org.rapidoid.reverseproxy.ProxyMapping Maven / Gradle / Ivy
package org.rapidoid.reverseproxy;
/*
* #%L
* rapidoid-http-server
* %%
* Copyright (C) 2014 - 2017 Nikolche Mihajlovski and contributors
* %%
* 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.
* #L%
*/
import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.commons.Str;
import org.rapidoid.http.Req;
import java.util.List;
@Authors("Nikolche Mihajlovski")
@Since("5.2.0")
public class ProxyMapping extends RapidoidThing {
private final String prefix;
private final LoadBalancer loadBalancer;
private final List upstreams;
public ProxyMapping(String prefix, LoadBalancer loadBalancer, List upstreams) {
this.prefix = prefix;
this.loadBalancer = loadBalancer;
this.upstreams = upstreams;
}
public String getTargetUrl(Req req) {
ProxyUpstream upstream = loadBalancer.pickUpstream(req, upstreams);
String trimmed = prefix.equals("/") ? req.uri() : Str.triml(req.uri(), prefix);
return upstream.url() + trimmed;
}
}