1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.http.impl.conn;
29
30
31 import java.net.InetAddress;
32
33 import org.apache.http.HttpException;
34 import org.apache.http.HttpHost;
35 import org.apache.http.HttpRequest;
36 import org.apache.http.annotation.Contract;
37 import org.apache.http.annotation.ThreadingBehavior;
38 import org.apache.http.conn.params.ConnRouteParams;
39 import org.apache.http.conn.routing.HttpRoute;
40 import org.apache.http.conn.routing.HttpRoutePlanner;
41 import org.apache.http.conn.scheme.Scheme;
42 import org.apache.http.conn.scheme.SchemeRegistry;
43 import org.apache.http.protocol.HttpContext;
44 import org.apache.http.util.Args;
45 import org.apache.http.util.Asserts;
46
47 /**
48 * Default implementation of an {@link HttpRoutePlanner}. This implementation
49 * is based on {@link org.apache.http.conn.params.ConnRoutePNames parameters}.
50 * It will not make use of any Java system properties, nor of system or
51 * browser proxy settings.
52 * <p>
53 * The following parameters can be used to customize the behavior of this
54 * class:
55 * <ul>
56 * <li>{@link org.apache.http.conn.params.ConnRoutePNames#DEFAULT_PROXY}</li>
57 * <li>{@link org.apache.http.conn.params.ConnRoutePNames#LOCAL_ADDRESS}</li>
58 * <li>{@link org.apache.http.conn.params.ConnRoutePNames#FORCED_ROUTE}</li>
59 * </ul>
60 *
61 * @since 4.0
62 *
63 * @deprecated (4.3) use {@link DefaultRoutePlanner}
64 */
65 @Contract(threading = ThreadingBehavior.SAFE)
66 @Deprecated
67 public class DefaultHttpRoutePlanner implements HttpRoutePlanner {
68
69 /** The scheme registry. */
70 protected final SchemeRegistry schemeRegistry; // class is @Contract(threading = ThreadingBehavior.SAFE)
71
72 /**
73 * Creates a new default route planner.
74 *
75 * @param schreg the scheme registry
76 */
77 public DefaultHttpRoutePlanner(final SchemeRegistry schreg) {
78 Args.notNull(schreg, "Scheme registry");
79 schemeRegistry = schreg;
80 }
81
82 @Override
83 public HttpRoute determineRoute(final HttpHost target,
84 final HttpRequest request,
85 final HttpContext context)
86 throws HttpException {
87
88 Args.notNull(request, "HTTP request");
89
90 // If we have a forced route, we can do without a target.
91 HttpRoute route =
92 ConnRouteParams.getForcedRoute(request.getParams());
93 if (route != null) {
94 return route;
95 }
96
97 // If we get here, there is no forced route.
98 // So we need a target to compute a route.
99
100 Asserts.notNull(target, "Target host");
101
102 final InetAddress local =
103 ConnRouteParams.getLocalAddress(request.getParams());
104 final HttpHost proxy =
105 ConnRouteParams.getDefaultProxy(request.getParams());
106
107 final Scheme schm;
108 try {
109 schm = this.schemeRegistry.getScheme(target.getSchemeName());
110 } catch (final IllegalStateException ex) {
111 throw new HttpException(ex.getMessage());
112 }
113 // as it is typically used for TLS/SSL, we assume that
114 // a layered scheme implies a secure connection
115 final boolean secure = schm.isLayered();
116
117 if (proxy == null) {
118 route = new HttpRoute(target, local, secure);
119 } else {
120 route = new HttpRoute(target, local, proxy, secure);
121 }
122 return route;
123 }
124
125 }