jgit/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsObjectRepresentation.java

/*
 * Copyright (C) 2011, Google Inc.
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
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 * - Neither the name of the Eclipse Foundation, Inc. nor the
 *   names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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package org.eclipse.jgit.internal.storage.dfs;

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

class DfsObjectRepresentation extends StoredObjectRepresentation {
	final DfsPackFile pack;
	int format;
	long offset;
	long length;
	ObjectId baseId;

	DfsObjectRepresentation(DfsPackFile pack) {
		this.pack = pack;
	}

	/** {@inheritDoc} */
	@Override
	public int getFormat() {
		return format;
	}

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

	/** {@inheritDoc} */
	@Override
	public ObjectId getDeltaBase() {
		return baseId;
	}

	/** {@inheritDoc} */
	@Override
	public boolean wasDeltaAttempted() {
		switch (pack.getPackDescription().getPackSource()) {
		case GC:
		case GC_REST:
		case GC_TXN:
			return true;
		default:
			return false;
		}
	}
}