The Tor Browser: mobile/android/thirdparty/ch/boye/httpclientandroidlib/conn/routing/HttpRouteDirector.java@fc2d59ddac77

     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  */

    28 package ch.boye.httpclientandroidlib.conn.routing;

    30 /**

    31  * Provides directions on establishing a route.

    32  * Implementations of this interface compare a planned route with

    33  * a tracked route and indicate the next step required.

    34  *

    35  * @since 4.0

    36  */

    37 public interface HttpRouteDirector {

    39     /** Indicates that the route can not be established at all. */

    40     public final static int UNREACHABLE = -1;

    42     /** Indicates that the route is complete. */

    43     public final static int COMPLETE = 0;

    45     /** Step: open connection to target. */

    46     public final static int CONNECT_TARGET = 1;

    48     /** Step: open connection to proxy. */

    49     public final static int CONNECT_PROXY = 2;

    51     /** Step: tunnel through proxy to target. */

    52     public final static int TUNNEL_TARGET = 3;

    54     /** Step: tunnel through proxy to other proxy. */

    55     public final static int TUNNEL_PROXY = 4;

    57     /** Step: layer protocol (over tunnel). */

    58     public final static int LAYER_PROTOCOL = 5;

    61     /**

    62      * Provides the next step.

    63      *

    64      * @param plan      the planned route

    65      * @param fact      the currently established route, or

    66      *                  <code>null</code> if nothing is established

    67      *

    68      * @return  one of the constants defined in this interface, indicating

    69      *          either the next step to perform, or success, or failure.

    70      *          0 is for success, a negative value for failure.

    71      */

    72     public int nextStep(RouteInfo plan, RouteInfo fact);

    74 }

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