AbstractAdvertiseRefsHook.java

  1. /*
  2.  * Copyright (C) 2012, Google Inc.
  3.  * and other copyright owners as documented in the project's IP log.
  4.  * * This program and the accompanying materials are made available
  5.  * under the terms of the Eclipse Distribution License v1.0 which
  6.  * accompanies this distribution, is reproduced below, and is
  7.  * available at http://www.eclipse.org/org/documents/edl-v10.php
  8.  *
  9.  * All rights reserved.
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  11.  * Redistribution and use in source and binary forms, with or
  12.  * without modification, are permitted provided that the following
  13.  * conditions are met:
  14.  *
  15.  * - Redistributions of source code must retain the above copyright
  16.  *   notice, this list of conditions and the following disclaimer.
  17.  *
  18.  * - Redistributions in binary form must reproduce the above
  19.  *   copyright notice, this list of conditions and the following
  20.  *   disclaimer in the documentation and/or other materials provided
  21.  *   with the distribution.
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  23.  * - Neither the name of the Eclipse Foundation, Inc. nor the
  24.  *   names of its contributors may be used to endorse or promote
  25.  *   products derived from this software without specific prior
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  28.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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  41.  */

  42. package org.eclipse.jgit.transport;

  43. import java.io.IOException;
  44. import java.util.Map;
  45. import java.util.Set;

  46. import org.eclipse.jgit.lib.ObjectId;
  47. import org.eclipse.jgit.lib.Ref;
  48. import org.eclipse.jgit.lib.Repository;
  49. import org.eclipse.jgit.revwalk.RevWalk;

  50. /**
  51.  * Implementation of {@link org.eclipse.jgit.transport.AdvertiseRefsHook} that advertises the same refs for
  52.  * upload-pack and receive-pack.
  53.  *
  54.  * @since 2.0
  55.  */
  56. public abstract class AbstractAdvertiseRefsHook implements AdvertiseRefsHook {
  57.     /** {@inheritDoc} */
  58.     @Override
  59.     public void advertiseRefs(UploadPack uploadPack)
  60.             throws ServiceMayNotContinueException {
  61.         uploadPack.setAdvertisedRefs(getAdvertisedRefs(
  62.                 uploadPack.getRepository(), uploadPack.getRevWalk()));
  63.     }

  64.     /**
  65.      * {@inheritDoc}
  66.      */
  67.     @Override
  68.     public void advertiseRefs(ReceivePack receivePack)
  69.             throws IOException {
  70.         Map<String, Ref> refs = getAdvertisedRefs(receivePack.getRepository(),
  71.                 receivePack.getRevWalk());
  72.         Set<ObjectId> haves = getAdvertisedHaves(receivePack.getRepository(),
  73.                 receivePack.getRevWalk());
  74.         receivePack.setAdvertisedRefs(refs, haves);
  75.     }

  76.     /**
  77.      * Get the refs to advertise.
  78.      *
  79.      * @param repository
  80.      *            repository instance.
  81.      * @param revWalk
  82.      *            open rev walk on the repository.
  83.      * @return set of refs to advertise.
  84.      * @throws org.eclipse.jgit.transport.ServiceMayNotContinueException
  85.      *             abort; the message will be sent to the user.
  86.      */
  87.     protected abstract Map<String, Ref> getAdvertisedRefs(
  88.             Repository repository, RevWalk revWalk)
  89.             throws ServiceMayNotContinueException;

  90.     /**
  91.      * Get the additional haves to advertise.
  92.      *
  93.      * @param repository
  94.      *            repository instance.
  95.      * @param revWalk
  96.      *            open rev walk on the repository.
  97.      * @return set of additional haves; see
  98.      *         {@link org.eclipse.jgit.transport.ReceivePack#getAdvertisedObjects()}.
  99.      * @throws org.eclipse.jgit.transport.ServiceMayNotContinueException
  100.      *             abort; the message will be sent to the user.
  101.      */
  102.     protected Set<ObjectId> getAdvertisedHaves(
  103.             Repository repository, RevWalk revWalk)
  104.             throws ServiceMayNotContinueException {
  105.         return null;
  106.     }
  107. }