/*
    * Copyright (C) 2011, Google Inc. and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  
  package org.eclipse.jgit.internal.storage.dfs;
  
  import org.eclipse.jgit.internal.storage.pack.ObjectToPack;
  import org.eclipse.jgit.internal.storage.pack.StoredObjectRepresentation;
  import org.eclipse.jgit.lib.AnyObjectId;
  
  /** {@link ObjectToPack} for {@link DfsObjDatabase}. */
  class DfsObjectToPack extends ObjectToPack {
  	private static final int FLAG_FOUND = 1 << 0;
  
  	/** Pack to reuse compressed data from, otherwise null. */
  	DfsPackFile pack;
  
  	/** Offset of the object's header in {@link #pack}. */
  	long offset;
  
  	/** Length of the data section of the object. */
  	long length;
  
  	DfsObjectToPack(AnyObjectId src, int type) {
  		super(src, type);
  	}
  
  	final boolean isFound() {
  		return isExtendedFlag(FLAG_FOUND);
  	}
  
  	final void setFound() {
  		setExtendedFlag(FLAG_FOUND);
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	protected void clearReuseAsIs() {
  		super.clearReuseAsIs();
  		pack = null;
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void select(StoredObjectRepresentation ref) {
  		DfsObjectRepresentation ptr = (DfsObjectRepresentation) ref;
  		this.pack = ptr.pack;
  		this.offset = ptr.offset;
  		this.length = ptr.length;
  	}
  }