/*
* Copyright 2013-2015 the original author or 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 org.springframework.cloud.netflix.ribbon.apache;
import com.netflix.client.RequestSpecificRetryHandler;
import com.netflix.client.RetryHandler;
import com.netflix.client.config.CommonClientConfigKey;
import com.netflix.client.config.IClientConfig;
import com.netflix.loadbalancer.ILoadBalancer;
import com.netflix.loadbalancer.Server;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.HttpClientBuilder;
import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
import org.springframework.cloud.netflix.ribbon.support.AbstractLoadBalancingClient;
import org.springframework.web.util.UriComponentsBuilder;
import java.net.URI;
import static org.springframework.cloud.netflix.ribbon.RibbonUtils.updateToHttpsIfNeeded;
/**
* @author Christian Lohmann
* @author Ryan Baxter
*/
//TODO: rename (ie new class that extends this in Dalston) to ApacheHttpLoadBalancingClient
public class RibbonLoadBalancingHttpClient extends
AbstractLoadBalancingClient<RibbonApacheHttpRequest, RibbonApacheHttpResponse, HttpClient> {
@Deprecated
public RibbonLoadBalancingHttpClient() {
super();
}
@Deprecated
public RibbonLoadBalancingHttpClient(final ILoadBalancer lb) {
super(lb);
}
public RibbonLoadBalancingHttpClient(IClientConfig config, ServerIntrospector serverIntrospector) {
super(config, serverIntrospector);
}
public RibbonLoadBalancingHttpClient(HttpClient delegate, IClientConfig config, ServerIntrospector serverIntrospector) {
super(delegate, config, serverIntrospector);
}
protected HttpClient createDelegate(IClientConfig config) {
return HttpClientBuilder.create()
// already defaults to 0 in builder, so resetting to 0 won't hurt
.setMaxConnTotal(config.getPropertyAsInteger(CommonClientConfigKey.MaxTotalConnections, 0))
// already defaults to 0 in builder, so resetting to 0 won't hurt
.setMaxConnPerRoute(config.getPropertyAsInteger(CommonClientConfigKey.MaxConnectionsPerHost, 0))
.disableCookieManagement()
.useSystemProperties() // for proxy
.build();
}
@Override
public RibbonApacheHttpResponse execute(RibbonApacheHttpRequest request,
final IClientConfig configOverride) throws Exception {
final RequestConfig.Builder builder = RequestConfig.custom();
IClientConfig config = configOverride != null ? configOverride : this.config;
builder.setConnectTimeout(config.get(
CommonClientConfigKey.ConnectTimeout, this.connectTimeout));
builder.setSocketTimeout(config.get(
CommonClientConfigKey.ReadTimeout, this.readTimeout));
builder.setRedirectsEnabled(config.get(
CommonClientConfigKey.FollowRedirects, this.followRedirects));
final RequestConfig requestConfig = builder.build();
if (isSecure(configOverride)) {
final URI secureUri = UriComponentsBuilder.fromUri(request.getUri())
.scheme("https").build().toUri();
request = request.withNewUri(secureUri);
}
final HttpUriRequest httpUriRequest = request.toRequest(requestConfig);
final HttpResponse httpResponse = this.delegate.execute(httpUriRequest);
return new RibbonApacheHttpResponse(httpResponse, httpUriRequest.getURI());
}
@Override
public URI reconstructURIWithServer(Server server, URI original) {
URI uri = updateToHttpsIfNeeded(original, this.config, this.serverIntrospector, server);
return super.reconstructURIWithServer(server, uri);
}
@Override
public RequestSpecificRetryHandler getRequestSpecificRetryHandler(RibbonApacheHttpRequest request, IClientConfig requestConfig) {
return new RequestSpecificRetryHandler(false, false,
RetryHandler.DEFAULT, requestConfig);
}
}