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. 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.internal.storage.dfs; 45 46 import java.io.IOException; 47 48 import org.eclipse.jgit.internal.storage.pack.CachedPack; 49 import org.eclipse.jgit.internal.storage.pack.ObjectToPack; 50 import org.eclipse.jgit.internal.storage.pack.PackOutputStream; 51 import org.eclipse.jgit.internal.storage.pack.StoredObjectRepresentation; 52 53 /** 54 * A DfsPackFile available for reuse as-is. 55 */ 56 public class DfsCachedPack extends CachedPack { 57 private final DfsPackFile pack; 58 59 DfsCachedPack(DfsPackFile pack) { 60 this.pack = pack; 61 } 62 63 /** 64 * Get the description of the pack. 65 * 66 * @return the description of the pack. 67 */ 68 public DfsPackDescription getPackDescription() { 69 return pack.getPackDescription(); 70 } 71 72 /** {@inheritDoc} */ 73 @Override 74 public long getObjectCount() throws IOException { 75 return getPackDescription().getObjectCount(); 76 } 77 78 /** {@inheritDoc} */ 79 @Override 80 public long getDeltaCount() throws IOException { 81 return getPackDescription().getDeltaCount(); 82 } 83 84 /** {@inheritDoc} */ 85 @Override 86 public boolean hasObject(ObjectToPack obj, StoredObjectRepresentation rep) { 87 return ((DfsObjectRepresentation) rep).pack == pack; 88 } 89 90 void copyAsIs(PackOutputStream out, DfsReader ctx) throws IOException { 91 pack.copyPackAsIs(out, ctx); 92 } 93 }