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1   /*
2    * Copyright (C) 2009-2010, Google Inc.
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  
44  package org.eclipse.jgit.transport.resolver;
45  
46  import org.eclipse.jgit.errors.RepositoryNotFoundException;
47  import org.eclipse.jgit.lib.Repository;
48  import org.eclipse.jgit.transport.ServiceMayNotContinueException;
49  
50  /**
51   * Locate a Git {@link org.eclipse.jgit.lib.Repository} by name from the URL.
52   *
53   * @param <C>
54   *            type of connection.
55   */
56  public interface RepositoryResolver<C> {
57  	/**
58  	 * Resolver configured to open nothing.
59  	 */
60  	public static final RepositoryResolver<?> NONE = new RepositoryResolver<Object>() {
61  		@Override
62  		public Repository open(Object req, String name)
63  				throws RepositoryNotFoundException {
64  			throw new RepositoryNotFoundException(name);
65  		}
66  	};
67  
68  	/**
69  	 * Locate and open a reference to a {@link Repository}.
70  	 * <p>
71  	 * The caller is responsible for closing the returned Repository.
72  	 *
73  	 * @param req
74  	 *            the current request, may be used to inspect session state
75  	 *            including cookies or user authentication.
76  	 * @param name
77  	 *            name of the repository, as parsed out of the URL.
78  	 * @return the opened repository instance, never null.
79  	 * @throws RepositoryNotFoundException
80  	 *             the repository does not exist or the name is incorrectly
81  	 *             formatted as a repository name.
82  	 * @throws ServiceNotAuthorizedException
83  	 *             the repository may exist, but HTTP access is not allowed
84  	 *             without authentication, i.e. this corresponds to an HTTP 401
85  	 *             Unauthorized.
86  	 * @throws ServiceNotEnabledException
87  	 *             the repository may exist, but HTTP access is not allowed on the
88  	 *             target repository, for the current user.
89  	 * @throws ServiceMayNotContinueException
90  	 *             the repository may exist, but HTTP access is not allowed for
91  	 *             the current request. The exception message contains a detailed
92  	 *             message that should be shown to the user.
93  	 */
94  	Repository open(C req, String name) throws RepositoryNotFoundException,
95  			ServiceNotAuthorizedException, ServiceNotEnabledException,
96  			ServiceMayNotContinueException;
97  }