cn.orionsec.kit.net.ftp.client.transfer

Class FtpDownloader

java.lang.Object

cn.orionsec.kit.net.specification.transfer.BaseFileDownloader

cn.orionsec.kit.net.ftp.client.transfer.FtpDownloader

All Implemented Interfaces:

SafeCloseable, IFileDownloader, IFileTransfer, Closeable, AutoCloseable, Runnable

public class FtpDownloader
extends BaseFileDownloader

FTP 大文件下载 支持断点续传, 实时速率

Since:

2021/3/13 00:51

Version:

1.0.0

Author:

Jiahang Li

Field Summary

Fields inherited from class cn.orionsec.kit.net.specification.transfer.BaseFileDownloader

bufferSize, fileSizeEqualOverride, forceOverride, local, lock, progress, remote, remoteFileLength

Constructor Summary

Constructors

Constructor and Description
FtpDownloader(IFtpInstance instance, String remote, File local)
FtpDownloader(IFtpInstance instance, String remote, String local)

Method Summary

Modifier and Type	Method and Description
void	abort() 终止传输
void	close() 安全关闭
IFtpInstance	getInstance()
protected long	getRemoteFileSize() 获取远程文件大小
protected void	initDownload(boolean breakPoint, long skip) 准开始下载
protected int	read(byte[] bs) 读取数据
void	run()
protected void	transferFinish() 传输完成回调

Methods inherited from class cn.orionsec.kit.net.specification.transfer.BaseFileDownloader

breakPointResume, checkRemoteFilePresentSizeEqual, download, fileSizeEqualOverride, forceOverride, getProgress, getRemoteFileLength, startDownload

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FtpDownloader

public FtpDownloader(IFtpInstance instance,
                     String remote,
                     String local)

FtpDownloader

public FtpDownloader(IFtpInstance instance,
                     String remote,
                     File local)

Method Detail

run

public void run()

getRemoteFileSize

protected long getRemoteFileSize()

Description copied from class: BaseFileDownloader

获取远程文件大小

Specified by:

getRemoteFileSize in class BaseFileDownloader

Returns:

fileSize 文件不存在则返回-1

initDownload

protected void initDownload(boolean breakPoint,
                            long skip)
                     throws IOException

Description copied from class: BaseFileDownloader

准开始下载

Specified by:

initDownload in class BaseFileDownloader

Parameters:

breakPoint - 是否为断点续传

skip - 跳过的长度

Throws:

IOException - IOException

read

protected int read(byte[] bs)
            throws IOException

Description copied from class: BaseFileDownloader

读取数据

Specified by:

read in class BaseFileDownloader

Parameters:

bs - bs

Returns:

长度

Throws:

IOException - IOException

transferFinish

protected void transferFinish()

Description copied from class: BaseFileDownloader

传输完成回调

Specified by:

transferFinish in class BaseFileDownloader

close

public void close()

Description copied from interface: SafeCloseable

安全关闭

abort

public void abort()

Description copied from interface: IFileTransfer

终止传输

getInstance

public IFtpInstance getInstance()