DfsObjectRepresentation.java

  1. /*
  2.  * Copyright (C) 2011, 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.
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  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.
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  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
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  29.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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  40.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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  42.  */

  43. package org.eclipse.jgit.internal.storage.dfs;

  44. import org.eclipse.jgit.internal.storage.pack.StoredObjectRepresentation;
  45. import org.eclipse.jgit.lib.ObjectId;

  46. class DfsObjectRepresentation extends StoredObjectRepresentation {
  47.     final DfsPackFile pack;
  48.     int format;
  49.     long offset;
  50.     long length;
  51.     ObjectId baseId;

  52.     DfsObjectRepresentation(DfsPackFile pack) {
  53.         this.pack = pack;
  54.     }

  55.     /** {@inheritDoc} */
  56.     @Override
  57.     public int getFormat() {
  58.         return format;
  59.     }

  60.     /** {@inheritDoc} */
  61.     @Override
  62.     public int getWeight() {
  63.         return (int) Math.min(length, Integer.MAX_VALUE);
  64.     }

  65.     /** {@inheritDoc} */
  66.     @Override
  67.     public ObjectId getDeltaBase() {
  68.         return baseId;
  69.     }

  70.     /** {@inheritDoc} */
  71.     @Override
  72.     public boolean wasDeltaAttempted() {
  73.         switch (pack.getPackDescription().getPackSource()) {
  74.         case GC:
  75.         case GC_REST:
  76.         case GC_TXN:
  77.             return true;
  78.         default:
  79.             return false;
  80.         }
  81.     }
  82. }