org.apache.hadoop.tools.distcp2

类 GlobbedCopyListing

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.tools.distcp2.CopyListing

org.apache.hadoop.tools.distcp2.GlobbedCopyListing

所有已实现的接口:

Configurable

public class GlobbedCopyListing
extends CopyListing

GlobbedCopyListing implements the CopyListing interface, to create the copy listing-file by "globbing" all specified source paths (wild-cards and all.)

构造器概要

构造器

构造器和说明
GlobbedCopyListing(Configuration configuration, Credentials credentials) Constructor, to initialize the configuration.

方法概要

方法

限定符和类型	方法和说明
void	doBuildListing(Path pathToListingFile, DistCpOptions options) Implementation of CopyListing::buildListing().
protected long	getBytesToCopy() Return the total bytes that distCp should copy for the source paths This doesn't consider whether file is same should be skipped during copy
protected long	getNumberOfPaths() Return the total number of paths to distcp, includes directories as well This doesn't consider whether file/dir is already present and should be skipped during copy
protected void	validatePaths(DistCpOptions options) Validate input and output paths

从类继承的方法 org.apache.hadoop.tools.distcp2.CopyListing

buildListing, getCopyListing, getCredentials, setCredentials

从类继承的方法 org.apache.hadoop.conf.Configured

getConf, setConf

从类继承的方法 java.lang.Object

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

构造器详细资料

GlobbedCopyListing

public GlobbedCopyListing(Configuration configuration,
                  Credentials credentials)

Constructor, to initialize the configuration.

参数:

configuration - The input Configuration object.

credentials - Credentials object on which the FS delegation tokens are cached. If null delegation token caching is skipped

方法详细资料

validatePaths

protected void validatePaths(DistCpOptions options)
                      throws IOException,
                             org.apache.hadoop.tools.distcp2.CopyListing.InvalidInputException

Validate input and output paths

指定者:

validatePaths 在类中 CopyListing

参数:

options - - Input options

抛出:

IOException

org.apache.hadoop.tools.distcp2.CopyListing.InvalidInputException

doBuildListing

public void doBuildListing(Path pathToListingFile,
                  DistCpOptions options)
                    throws IOException

Implementation of CopyListing::buildListing(). Creates the copy listing by "globbing" all source-paths.

指定者:

doBuildListing 在类中 CopyListing

参数:

pathToListingFile - The location at which the copy-listing file is to be created.

options - Input Options for DistCp (indicating source/target paths.)

抛出:

IOException

getBytesToCopy

protected long getBytesToCopy()

Return the total bytes that distCp should copy for the source paths This doesn't consider whether file is same should be skipped during copy

指定者:

getBytesToCopy 在类中 CopyListing

返回:

total bytes to copy

getNumberOfPaths

protected long getNumberOfPaths()

Return the total number of paths to distcp, includes directories as well This doesn't consider whether file/dir is already present and should be skipped during copy

指定者:

getNumberOfPaths 在类中 CopyListing

返回:

Total number of paths to distcp