org.apache.flink.runtime.execution.librarycache

Class FallbackLibraryCacheManager

java.lang.Object

org.apache.flink.runtime.execution.librarycache.FallbackLibraryCacheManager

All Implemented Interfaces:

LibraryCacheManager

public class FallbackLibraryCacheManager
extends Object
implements LibraryCacheManager

Constructor Summary

Constructors

Constructor and Description
FallbackLibraryCacheManager()

Method Summary

Methods

Modifier and Type	Method and Description
ClassLoader	getClassLoader(JobID id) Returns the user code class loader associated with id.
File	getFile(BlobKey blobKey) Returns a file handle to the file identified by the blob key.
void	registerJob(JobID id, Collection<BlobKey> requiredJarFiles, Collection<URL> requiredClasspaths) Registers a job with its required jar files and classpaths.
void	registerTask(JobID id, ExecutionAttemptID execution, Collection<BlobKey> requiredJarFiles, Collection<URL> requiredClasspaths) Registers a job task execution with its required jar files and classpaths.
void	shutdown() Shutdown method
void	unregisterJob(JobID id) Unregisters a job from the library cache manager.
void	unregisterTask(JobID id, ExecutionAttemptID execution) Unregisters a job from the library cache manager.

Methods inherited from class java.lang.Object

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

Constructor Detail

FallbackLibraryCacheManager

public FallbackLibraryCacheManager()

Method Detail

getClassLoader

public ClassLoader getClassLoader(JobID id)

Description copied from interface: LibraryCacheManager

Returns the user code class loader associated with id.

Specified by:

getClassLoader in interface LibraryCacheManager

Parameters:

id - identifying the job

Returns:

ClassLoader which can load the user code

getFile

public File getFile(BlobKey blobKey)
             throws IOException

Description copied from interface: LibraryCacheManager

Returns a file handle to the file identified by the blob key.

Specified by:

getFile in interface LibraryCacheManager

Parameters:

blobKey - identifying the requested file

Returns:

File handle

Throws:

IOException

registerJob

public void registerJob(JobID id,
               Collection<BlobKey> requiredJarFiles,
               Collection<URL> requiredClasspaths)

Description copied from interface: LibraryCacheManager

Registers a job with its required jar files and classpaths. The jar files are identified by their blob keys.

Specified by:

registerJob in interface LibraryCacheManager

Parameters:

id - job ID

requiredJarFiles - collection of blob keys identifying the required jar files

requiredClasspaths - collection of classpaths that are added to the user code class loader

registerTask

public void registerTask(JobID id,
                ExecutionAttemptID execution,
                Collection<BlobKey> requiredJarFiles,
                Collection<URL> requiredClasspaths)

Description copied from interface: LibraryCacheManager

Registers a job task execution with its required jar files and classpaths. The jar files are identified by their blob keys.

Specified by:

registerTask in interface LibraryCacheManager

Parameters:

id - job ID

requiredJarFiles - collection of blob keys identifying the required jar files

requiredClasspaths - collection of classpaths that are added to the user code class loader

unregisterJob

public void unregisterJob(JobID id)

Description copied from interface: LibraryCacheManager

Unregisters a job from the library cache manager.

Specified by:

unregisterJob in interface LibraryCacheManager

Parameters:

id - job ID

unregisterTask

public void unregisterTask(JobID id,
                  ExecutionAttemptID execution)

Description copied from interface: LibraryCacheManager

Unregisters a job from the library cache manager.

Specified by:

unregisterTask in interface LibraryCacheManager

Parameters:

id - job ID

shutdown

public void shutdown()

Description copied from interface: LibraryCacheManager

Shutdown method

Specified by:

shutdown in interface LibraryCacheManager