dmpiecemapsimple.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   DMPieceMapSimple.java

package org.gudy.azureus2.core3.disk.impl.piecemapper.impl;

import org.gudy.azureus2.core3.disk.impl.DiskManagerFileInfoImpl;
import org.gudy.azureus2.core3.disk.impl.piecemapper.*;
import org.gudy.azureus2.core3.torrent.TOTorrent;

public class DMPieceMapSimple
	implements DMPieceMap
{
	protected class pieceList
		implements DMPieceList, DMPieceMapEntry
	{

		private int piece_number;
		final DMPieceMapSimple this$0;

		public int size()
		{
			return 1;
		}

		public DMPieceMapEntry get(int index)
		{
			return this;
		}

		public int getCumulativeLengthToPiece(int file_index)
		{
			return getLength();
		}

		public DiskManagerFileInfoImpl getFile()
		{
			return file;
		}

		public long getOffset()
		{
			return (long)piece_number * (long)piece_length;
		}

		public int getLength()
		{
			if (piece_number == piece_count - 1)
				return last_piece_length;
			else
				return piece_length;
		}

		protected pieceList(int _piece_number)
		{
			this$0 = DMPieceMapSimple.this;
			super();
			piece_number = _piece_number;
		}
	}


	private final int piece_length;
	private final int piece_count;
	private final int last_piece_length;
	private final DiskManagerFileInfoImpl file;

	protected DMPieceMapSimple(TOTorrent torrent, DiskManagerFileInfoImpl _file)
	{
		piece_length = (int)torrent.getPieceLength();
		piece_count = torrent.getNumberOfPieces();
		int lpl = (int)(torrent.getSize() % (long)piece_length);
		if (lpl == 0)
			lpl = piece_length;
		last_piece_length = lpl;
		file = _file;
	}

	public DMPieceList getPieceList(int piece_number)
	{
		return new pieceList(piece_number);
	}




}