totorrentfactory.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:   TOTorrentFactory.java

package org.gudy.azureus2.core3.torrent;

import java.io.File;
import java.io.InputStream;
import java.net.URL;
import java.util.Map;
import org.gudy.azureus2.core3.torrent.impl.TOTorrentCreateImpl;
import org.gudy.azureus2.core3.torrent.impl.TOTorrentDeserialiseImpl;
import org.gudy.azureus2.core3.torrent.impl.TOTorrentXMLDeserialiser;

// Referenced classes of package org.gudy.azureus2.core3.torrent:
//			TOTorrentException, TOTorrent, TOTorrentCreator

public class TOTorrentFactory
{

	public static final long TO_DEFAULT_FIXED_PIECE_SIZE = 0x40000L;
	public static final long TO_DEFAULT_VARIABLE_PIECE_SIZE_MIN = 32768L;
	public static final long TO_DEFAULT_VARIABLE_PIECE_SIZE_MAX = 0x200000L;
	public static final long TO_DEFAULT_VARIABLE_PIECE_NUM_LOWER = 1024L;
	public static final long TO_DEFAULT_VARIABLE_PIECE_NUM_UPPER = 2048L;
	public static final long STANDARD_PIECE_SIZES[] = {
		32768L, 49152L, 0x10000L, 0x18000L, 0x20000L, 0x30000L, 0x40000L, 0x60000L, 0x80000L, 0xc0000L, 
		0x100000L, 0x180000L, 0x200000L, 0x300000L, 0x400000L
	};

	public TOTorrentFactory()
	{
	}

	public static TOTorrent deserialiseFromBEncodedFile(File file)
		throws TOTorrentException
	{
		return new TOTorrentDeserialiseImpl(file);
	}

	public static TOTorrent deserialiseFromBEncodedInputStream(InputStream is)
		throws TOTorrentException
	{
		return new TOTorrentDeserialiseImpl(is);
	}

	public static TOTorrent deserialiseFromBEncodedByteArray(byte bytes[])
		throws TOTorrentException
	{
		return new TOTorrentDeserialiseImpl(bytes);
	}

	public static TOTorrent deserialiseFromMap(Map data)
		throws TOTorrentException
	{
		return new TOTorrentDeserialiseImpl(data);
	}

	public static TOTorrent deserialiseFromXMLFile(File file)
		throws TOTorrentException
	{
		return (new TOTorrentXMLDeserialiser()).deserialise(file);
	}

	public static TOTorrentCreator createFromFileOrDirWithFixedPieceLength(File file, URL announce_url)
		throws TOTorrentException
	{
		return createFromFileOrDirWithFixedPieceLength(file, announce_url, false, 0x40000L);
	}

	public static TOTorrentCreator createFromFileOrDirWithFixedPieceLength(File file, URL announce_url, boolean add_hashes)
		throws TOTorrentException
	{
		return createFromFileOrDirWithFixedPieceLength(file, announce_url, add_hashes, 0x40000L);
	}

	public static TOTorrentCreator createFromFileOrDirWithFixedPieceLength(File file, URL announce_url, long piece_length)
		throws TOTorrentException
	{
		return createFromFileOrDirWithFixedPieceLength(file, announce_url, false, piece_length);
	}

	public static TOTorrentCreator createFromFileOrDirWithFixedPieceLength(File file, URL announce_url, boolean add_hashes, long piece_length)
		throws TOTorrentException
	{
		return TOTorrentCreateImpl.create(file, announce_url, add_hashes, piece_length);
	}

	public static TOTorrentCreator createFromFileOrDirWithComputedPieceLength(File file, URL announce_url)
		throws TOTorrentException
	{
		return createFromFileOrDirWithComputedPieceLength(file, announce_url, false);
	}

	public static TOTorrentCreator createFromFileOrDirWithComputedPieceLength(File file, URL announce_url, boolean add_hashes)
		throws TOTorrentException
	{
		return createFromFileOrDirWithComputedPieceLength(file, announce_url, add_hashes, 32768L, 0x200000L, 1024L, 2048L);
	}

	public static TOTorrentCreator createFromFileOrDirWithComputedPieceLength(File file, URL announce_url, long piece_min_size, long piece_max_size, long piece_num_lower, 
			long piece_num_upper)
		throws TOTorrentException
	{
		return createFromFileOrDirWithComputedPieceLength(file, announce_url, false, piece_min_size, piece_max_size, piece_num_lower, piece_num_upper);
	}

	public static TOTorrentCreator createFromFileOrDirWithComputedPieceLength(File file, URL announce_url, boolean add_hashes, long piece_min_size, long piece_max_size, long piece_num_lower, long piece_num_upper)
		throws TOTorrentException
	{
		return TOTorrentCreateImpl.create(file, announce_url, add_hashes, piece_min_size, piece_max_size, piece_num_lower, piece_num_upper);
	}

	public static long getTorrentDataSizeFromFileOrDir(File file_or_dir)
	{
		return TOTorrentCreateImpl.getTorrentDataSizeFromFileOrDir(file_or_dir);
	}

	public static long getComputedPieceSize(long data_size)
	{
		return TOTorrentCreateImpl.getComputedPieceSize(data_size, 32768L, 0x200000L, 1024L, 2048L);
	}

	public static long getPieceCount(long total_size, long piece_size)
	{
		return TOTorrentCreateImpl.getPieceCount(total_size, piece_size);
	}

}