| /* |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.client5.http.impl.routing; |
| |
| import java.net.InetAddress; |
| |
| import org.apache.hc.client5.http.HttpRoute; |
| import org.apache.hc.client5.http.SchemePortResolver; |
| import org.apache.hc.client5.http.config.RequestConfig; |
| import org.apache.hc.client5.http.impl.DefaultSchemePortResolver; |
| import org.apache.hc.client5.http.protocol.HttpClientContext; |
| import org.apache.hc.client5.http.routing.HttpRoutePlanner; |
| import org.apache.hc.client5.http.routing.RoutingSupport; |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.ProtocolException; |
| import org.apache.hc.core5.http.URIScheme; |
| import org.apache.hc.core5.http.protocol.HttpContext; |
| |
| /** |
| * Default implementation of an {@link HttpRoutePlanner}. It will not make use of |
| * any Java system properties, nor of system or browser proxy settings. |
| * |
| * @since 4.3 |
| */ |
| @Contract(threading = ThreadingBehavior.STATELESS) |
| public class DefaultRoutePlanner implements HttpRoutePlanner { |
| |
| private final SchemePortResolver schemePortResolver; |
| |
| public DefaultRoutePlanner(final SchemePortResolver schemePortResolver) { |
| super(); |
| this.schemePortResolver = schemePortResolver != null ? schemePortResolver : DefaultSchemePortResolver.INSTANCE; |
| } |
| |
| @Override |
| public final HttpRoute determineRoute(final HttpHost host, final HttpContext context) throws HttpException { |
| if (host == null) { |
| throw new ProtocolException("Target host is not specified"); |
| } |
| final HttpClientContext clientContext = HttpClientContext.adapt(context); |
| final RequestConfig config = clientContext.getRequestConfig(); |
| @SuppressWarnings("deprecation") |
| HttpHost proxy = config.getProxy(); |
| if (proxy == null) { |
| proxy = determineProxy(host, context); |
| } |
| final HttpHost target = RoutingSupport.normalize(host, schemePortResolver); |
| if (target.getPort() < 0) { |
| throw new ProtocolException("Unroutable protocol scheme: " + target); |
| } |
| final boolean secure = target.getSchemeName().equalsIgnoreCase(URIScheme.HTTPS.getId()); |
| if (proxy == null) { |
| return new HttpRoute(target, determineLocalAddress(target, context), secure); |
| } |
| return new HttpRoute(target, determineLocalAddress(proxy, context), proxy, secure); |
| } |
| |
| /** |
| * This implementation returns null. |
| * |
| * @throws HttpException may be thrown if overridden |
| */ |
| protected HttpHost determineProxy( |
| final HttpHost target, |
| final HttpContext context) throws HttpException { |
| return null; |
| } |
| |
| /** |
| * This implementation returns null. |
| * |
| * @throws HttpException may be thrown if overridden |
| */ |
| protected InetAddress determineLocalAddress( |
| final HttpHost firstHop, |
| final HttpContext context) throws HttpException { |
| return null; |
| } |
| |
| } |