Package ubic.gemma.core.util

Class SimpleDownloader

java.lang.Object

ubic.gemma.core.util.SimpleDownloader

public class SimpleDownloader
extends Object

A simple downloader for FTP and HTTP(s) URLs.

Author:

poirigui

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	SimpleDownloader.URLAndDestination

Constructor Summary

Constructors

Constructor	Description
SimpleDownloader(SimpleRetryPolicy retryPolicy)

Method Summary

Modifier and Type	Method	Description
long	download(URL url, Path dest, boolean force)	Download a file from a URL to a local destination.
Future<Long>	downloadAsync(URL url, Path dest, boolean force)	Download a file from a URL to a local destination asynchronously.
long	downloadInParallel(List<SimpleDownloader.URLAndDestination> urls2dest, boolean force)	Download a file from a URL to a local destination asynchronously.
void	setCheckArchiveIntegrity(boolean checkArchiveIntegrity)	Set whether to check the integrity of gzipped files after downloading.
void	setFileLockManager(FileLockManager fileLockManager)
void	setFtpClientFactory(FTPClientFactory ftpClientFactory)	Set the factory for creating FTP clients.
void	setTaskExecutor(ExecutorService taskExecutor)	Set the task executor for performing asynchronous downloads.

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleDownloader

public SimpleDownloader(@Nullable
 SimpleRetryPolicy retryPolicy)

Parameters:

retryPolicy - policy for retrying failed downloads, or null to only attempt downloads once

Method Details

setFtpClientFactory

public void setFtpClientFactory(@Nullable
 FTPClientFactory ftpClientFactory)

Set the factory for creating FTP clients.

setTaskExecutor

public void setTaskExecutor(@Nullable
 ExecutorService taskExecutor)

Set the task executor for performing asynchronous downloads.

setFileLockManager

public void setFileLockManager(@Nullable
 FileLockManager fileLockManager)

setCheckArchiveIntegrity

public void setCheckArchiveIntegrity(boolean checkArchiveIntegrity)

Set whether to check the integrity of gzipped files after downloading.

downloadInParallel

public long downloadInParallel(List<SimpleDownloader.URLAndDestination> urls2dest,
 boolean force)
                        throws IOException,
InterruptedException

Download a file from a URL to a local destination asynchronously.

Throws:

IOException

InterruptedException

downloadAsync

public Future<Long> downloadAsync(URL url,
 Path dest,
 boolean force)

Download a file from a URL to a local destination asynchronously.

download

public long download(URL url,
 Path dest,
 boolean force)
              throws IOException

Download a file from a URL to a local destination.

Parameters:

url - URL to download

dest - destination for the download

force - download even if the file exists, has the same size and is up to date

Returns:

the number of bytes that were downloaded

Throws:

IOException