| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/conn/DefaultHttpRoutePlanner.java $ |
| * $Revision: 658785 $ |
| * $Date: 2008-05-21 10:47:40 -0700 (Wed, 21 May 2008) $ |
| * |
| * ==================================================================== |
| * 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.http.impl.conn; |
| |
| |
| import java.net.InetAddress; |
| |
| import org.apache.http.HttpException; |
| import org.apache.http.HttpHost; |
| import org.apache.http.HttpRequest; |
| import org.apache.http.protocol.HttpContext; |
| |
| import org.apache.http.conn.routing.HttpRoute; |
| import org.apache.http.conn.routing.HttpRoutePlanner; |
| import org.apache.http.conn.scheme.Scheme; |
| import org.apache.http.conn.scheme.SchemeRegistry; |
| |
| import org.apache.http.conn.params.ConnRouteParams; |
| |
| |
| /** |
| * Default implementation of an {@link HttpRoutePlanner}. |
| * This implementation is based on |
| * {@link org.apache.http.conn.params.ConnRoutePNames parameters}. |
| * It will not make use of any Java system properties, |
| * nor of system or browser proxy settings. |
| */ |
| public class DefaultHttpRoutePlanner implements HttpRoutePlanner { |
| |
| /** The scheme registry. */ |
| protected SchemeRegistry schemeRegistry; |
| |
| |
| /** |
| * Creates a new default route planner. |
| * |
| * @param schreg the scheme registry |
| */ |
| public DefaultHttpRoutePlanner(SchemeRegistry schreg) { |
| if (schreg == null) { |
| throw new IllegalArgumentException |
| ("SchemeRegistry must not be null."); |
| } |
| schemeRegistry = schreg; |
| } |
| |
| |
| // non-javadoc, see interface HttpRoutePlanner |
| public HttpRoute determineRoute(HttpHost target, |
| HttpRequest request, |
| HttpContext context) |
| throws HttpException { |
| |
| if (request == null) { |
| throw new IllegalStateException |
| ("Request must not be null."); |
| } |
| |
| // If we have a forced route, we can do without a target. |
| HttpRoute route = |
| ConnRouteParams.getForcedRoute(request.getParams()); |
| if (route != null) |
| return route; |
| |
| // If we get here, there is no forced route. |
| // So we need a target to compute a route. |
| |
| if (target == null) { |
| throw new IllegalStateException |
| ("Target host must not be null."); |
| } |
| |
| final InetAddress local = |
| ConnRouteParams.getLocalAddress(request.getParams()); |
| final HttpHost proxy = |
| ConnRouteParams.getDefaultProxy(request.getParams()); |
| |
| final Scheme schm = schemeRegistry.getScheme(target.getSchemeName()); |
| // as it is typically used for TLS/SSL, we assume that |
| // a layered scheme implies a secure connection |
| final boolean secure = schm.isLayered(); |
| |
| if (proxy == null) { |
| route = new HttpRoute(target, local, secure); |
| } else { |
| route = new HttpRoute(target, local, proxy, secure); |
| } |
| return route; |
| } |
| |
| |
| } |