Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, use android-latest-release. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.

TfLaunchControlProvider

public class TfLaunchControlProvider
extends LaunchControlProvider

java.lang.Object
↳	com.google.android.tradefed.build.LaunchControlProvider
	↳	com.google.android.tradefed.build.TfLaunchControlProvider

A LaunchControlProvider to retrieve a google-tradefed build as a IFolderBuildInfo.

Retrieves and extracts a google-tradefed.zip from the Android build server.

Summary

Public constructors
`TfLaunchControlProvider()`

Public methods
`void`	`addConsideredEntryForContent(String entryName)`
`void`	`cleanUp(IBuildInfo info)` Clean up any temporary build files.
`IBuildInfo`	`downloadBuildFiles(RemoteBuildInfo remoteBuild, String testTargetName, String buildName, IFileDownloader downloader)` Download the necessary file keys as configured in --download-build-key from the `remoteBuild`, and store them in a `IBuildInfo`.
`RemoteBuildInfo`	`queryForBuild()` Perform the launch control query, retrying multiple times in case of error.
`Set<String>`	`reportTestZipFileFilter()`
`void`	`setAospFallback(boolean fallbackToAosp)` Whether or not to fallback to getting the aosp version of the tradefed package.
`boolean`	`wasFallbackUsed()`

Protected methods
`void`	`downloadAdditionalFiles(RemoteBuildInfo remoteBuild, IFileDownloader downloader, IBuildInfo localBuild)`

Public constructors

TfLaunchControlProvider

public TfLaunchControlProvider ()

Public methods

addConsideredEntryForContent

public void addConsideredEntryForContent (String entryName)

Parameters
`entryName`	`String`

cleanUp

public void cleanUp (IBuildInfo info)

Clean up any temporary build files.

Parameters
`info`	`IBuildInfo`

downloadBuildFiles

public IBuildInfo downloadBuildFiles (RemoteBuildInfo remoteBuild, 
                String testTargetName, 
                String buildName, 
                IFileDownloader downloader)

Download the necessary file keys as configured in --download-build-key from the remoteBuild, and store them in a IBuildInfo.

Parameters
`remoteBuild`	`RemoteBuildInfo`: the launch control server response
`testTargetName`	`String`: the test target name
`buildName`	`String`: the name of the build, as defined by launch control
`downloader`	`IFileDownloader`: the `IFileDownloader` to use to download build files

Returns
`IBuildInfo`	the `IBuildInfo` populated with local versions of build files

Throws
`BuildRetrievalError`

queryForBuild

public RemoteBuildInfo queryForBuild ()

Perform the launch control query, retrying multiple times in case of error.

Returns
`RemoteBuildInfo`	the `RemoteBuildInfo` retrieved from launch control

Throws
`BuildRetrievalError`

reportTestZipFileFilter

public Set<String> reportTestZipFileFilter ()

Returns
`Set<String>`

setAospFallback

public void setAospFallback (boolean fallbackToAosp)

Whether or not to fallback to getting the aosp version of the tradefed package.

Parameters
`fallbackToAosp`	`boolean`

wasFallbackUsed

public boolean wasFallbackUsed ()

Returns
`boolean`

Protected methods

downloadAdditionalFiles

protected void downloadAdditionalFiles (RemoteBuildInfo remoteBuild, 
                IFileDownloader downloader, 
                IBuildInfo localBuild)

Parameters
`remoteBuild`	`RemoteBuildInfo`
`downloader`	`IFileDownloader`
`localBuild`	`IBuildInfo`

Throws
`BuildRetrievalError`