com.facebook.buck.file

Class DownloadStep

java.lang.Object

com.facebook.buck.file.DownloadStep

All Implemented Interfaces:

Step

public class DownloadStep
extends Object
implements Step

Download a file from a known location.

Constructor Summary

Constructors

Constructor and Description
DownloadStep(ProjectFilesystem filesystem, Downloader downloader, URI canonicalUri, com.google.common.collect.ImmutableList<URI> additionalUris, FileHash expectedHash, Path output) Creates an instance of DownloadStep

Method Summary

Modifier and Type	Method and Description
StepExecutionResult	execute(ExecutionContext context)
String	getDescription(ExecutionContext context)
String	getShortName()

Methods inherited from class java.lang.Object

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

Constructor Detail

DownloadStep

public DownloadStep(ProjectFilesystem filesystem,
                    Downloader downloader,
                    URI canonicalUri,
                    com.google.common.collect.ImmutableList<URI> additionalUris,
                    FileHash expectedHash,
                    Path output)

Creates an instance of DownloadStep

Parameters:

filesystem - The filesystem to use for download files

downloader - The downloader to use to fetch files

canonicalUri - The primary uri to try, and the one used in display text

additionalUris - If the original download fails, try to download from these mirrors

expectedHash - The expected expectedHash of the file

output - Where to output the file inside of the filesystem

Method Detail

execute

public StepExecutionResult execute(ExecutionContext context)
                            throws IOException

Specified by:

execute in interface Step

Throws:

IOException

getShortName

public String getShortName()

Specified by:

getShortName in interface Step

Returns:

a short name/description for the command, such as "javac". Should fit on one line.

getDescription

public String getDescription(ExecutionContext context)

Specified by:

getDescription in interface Step