org.apache.flink.examples.java.distcp

Class FileCopyTaskInputFormat

java.lang.Object

org.apache.flink.examples.java.distcp.FileCopyTaskInputFormat

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>, org.apache.flink.core.io.InputSplitSource<FileCopyTaskInputSplit>

public class FileCopyTaskInputFormat
extends Object
implements org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

An implementation of an input format that dynamically assigns FileCopyTask to the mappers that have finished previously assigned tasks.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FileCopyTaskInputFormat(List<FileCopyTask> tasks)

Method Summary

Modifier and Type	Method and Description
void	close()
void	configure(org.apache.flink.configuration.Configuration parameters)
FileCopyTaskInputSplit[]	createInputSplits(int minNumSplits)
org.apache.flink.core.io.InputSplitAssigner	getInputSplitAssigner(FileCopyTaskInputSplit[] inputSplits)
org.apache.flink.api.common.io.statistics.BaseStatistics	getStatistics(org.apache.flink.api.common.io.statistics.BaseStatistics cachedStatistics)
FileCopyTask	nextRecord(FileCopyTask reuse)
void	open(FileCopyTaskInputSplit split)
boolean	reachedEnd()

Methods inherited from class java.lang.Object

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

Constructor Detail

FileCopyTaskInputFormat

public FileCopyTaskInputFormat(List<FileCopyTask> tasks)

Method Detail

configure

public void configure(org.apache.flink.configuration.Configuration parameters)

Specified by:

configure in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

getStatistics

public org.apache.flink.api.common.io.statistics.BaseStatistics getStatistics(org.apache.flink.api.common.io.statistics.BaseStatistics cachedStatistics)
                                                                       throws IOException

Specified by:

getStatistics in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Throws:

IOException

createInputSplits

public FileCopyTaskInputSplit[] createInputSplits(int minNumSplits)
                                           throws IOException

Specified by:

createInputSplits in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Specified by:

createInputSplits in interface org.apache.flink.core.io.InputSplitSource<FileCopyTaskInputSplit>

Throws:

IOException

getInputSplitAssigner

public org.apache.flink.core.io.InputSplitAssigner getInputSplitAssigner(FileCopyTaskInputSplit[] inputSplits)

Specified by:

getInputSplitAssigner in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Specified by:

getInputSplitAssigner in interface org.apache.flink.core.io.InputSplitSource<FileCopyTaskInputSplit>

open

public void open(FileCopyTaskInputSplit split)
          throws IOException

Specified by:

open in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Throws:

IOException

reachedEnd

public boolean reachedEnd()
                   throws IOException

Specified by:

reachedEnd in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Throws:

IOException

nextRecord

public FileCopyTask nextRecord(FileCopyTask reuse)
                        throws IOException

Specified by:

nextRecord in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface org.apache.flink.api.common.io.InputFormat<FileCopyTask,FileCopyTaskInputSplit>

Throws:

IOException