def downmultfile(self,
remoteHost,
remoteport,
loginname,
loginpassword,
remotePath,
localPath,
filename,
filesize,
block_size,
del_part_file_able,
mult_taskcount=None):
# TODO 判断本地文件是否存在
if FileUtils.CheckFileExists(localPath):
lfilesize = FileUtils.GetFileSize(localPath)
print(datetime.now(), filename, "本地文件size", filesize)
if lfilesize == filesize:
print(datetime.now(), filename, "本地文件已存在")
else:
mult_file_name = FileUtils.GetFileName(localPath)
print(mult_file_name, )
FileUtils.Mkdirs(mult_file_name + "/")
part_file_count = math.ceil(float(filesize) / block_size) # 分片文件数
part_file_end = part_file_count - 1
part_file_names = list()
if mult_taskcount == None:
mult_taskcount = part_file_count
mult_threadPool = ThreadPoolExecutor(
max_workers=mult_taskcount,
thread_name_prefix="mult_ftp_down_task_")
for i in range(part_file_count):
part_file_name = mult_file_name + "/" + filename + "_part" + str(
i)
part_file_names.append(part_file_name)
part_file_start_size = i * block_size
part_file_size = block_size
if i == part_file_end:
part_filesize = filesize - part_file_start_size
mult_threadPool.submit(MyFTP().downloadbymulti_thread,
remoteHost, remoteport, loginname,
loginpassword, remotePath,
part_file_name, part_file_start_size,
part_file_size)
mult_threadPool.shutdown(wait=True)
print(datetime.now(), filename, "part文件全部下载完毕")
#
print(datetime.now(), filename, "开始合并")
FileUtils.MergFile(part_file_names, localPath, filesize,
block_size, part_file_count, part_file_end,
del_part_file_able, mult_file_name) # del
#开始上传文件
print(datetime.now(), filename, "开始上传")
UploadFile(filename, filesize, localPath, localPath)
