alluxio.cli.fs.command

Class AbstractFileSystemCommand

java.lang.Object

alluxio.cli.fs.command.AbstractFileSystemCommand

All Implemented Interfaces:

Command, java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

AbstractDistributedJobCommand, CancelCommand, CatCommand, CheckConsistencyCommand, ChecksumCommand, ChgrpCommand, ChmodCommand, ChownCommand, CopyFromLocalCommand, CopyToLocalCommand, CountCommand, CpCommand, DuCommand, FreeCommand, GetCapacityBytesCommand, GetCmdStatusCommand, GetFaclCommand, GetSyncPathListCommand, GetUsedBytesCommand, HeadCommand, HelpCommand, LeaderCommand, LeaderCommand, ListCommand, LoadCommand, LoadMetadataCommand, LocationCommand, LsCommand, MasterInfoCommand, MkdirCommand, MountCommand, MvCommand, PersistCommand, PinCommand, RmCommand, SetFaclCommand, SetReplicationCommand, SetTtlCommand, StartSyncCommand, StatCommand, StatCommand, StopSyncCommand, TailCommand, TestCommand, TouchCommand, UnmountCommand, UnpinCommand, UnsetTtlCommand, UpdateMountCommand

@ThreadSafe
public abstract class AbstractFileSystemCommand
extends java.lang.Object
implements Command

The base class for all the FileSystem Command classes. It provides a place to hold the FileSystem client.

Field Summary

Fields

Modifier and Type	Field and Description
protected FileSystem	mFileSystem
protected FileSystemContext	mFsContext

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractFileSystemCommand(FileSystemContext fsContext)

Method Summary

Modifier and Type	Method and Description
protected void	processHeader(org.apache.commons.cli.CommandLine cl) Processes the header of the command.
protected void	runPlainPath(AlluxioURI plainPath, org.apache.commons.cli.CommandLine cl) Runs the command for a particular URI that does not contain wildcard in its path.
protected void	runWildCardCmd(AlluxioURI wildCardPath, org.apache.commons.cli.CommandLine cl) Runs the command for a particular URI that may contain wildcard in its path.

Methods inherited from class java.lang.Object

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

Methods inherited from interface alluxio.cli.Command

close, getCommandName, getDescription, getOptions, getSubCommands, getUsage, hasSubCommand, parseAndValidateArgs, run, validateArgs

Field Detail

mFileSystem

protected FileSystem mFileSystem

mFsContext

protected FileSystemContext mFsContext

Constructor Detail

AbstractFileSystemCommand

protected AbstractFileSystemCommand(@Nullable
                                    FileSystemContext fsContext)

Method Detail

runPlainPath

protected void runPlainPath(AlluxioURI plainPath,
                            org.apache.commons.cli.CommandLine cl)
                     throws AlluxioException,
                            java.io.IOException

Runs the command for a particular URI that does not contain wildcard in its path.

Parameters:

plainPath - an AlluxioURI that does not contain wildcard

cl - object containing the original commandLine

Throws:

AlluxioException

java.io.IOException

processHeader

protected void processHeader(org.apache.commons.cli.CommandLine cl)
                      throws java.io.IOException

Processes the header of the command. Our input path may contain wildcard but we only want to print the header for once.

Parameters:

cl - object containing the original commandLine

Throws:

java.io.IOException

runWildCardCmd

protected void runWildCardCmd(AlluxioURI wildCardPath,
                              org.apache.commons.cli.CommandLine cl)
                       throws java.io.IOException

Runs the command for a particular URI that may contain wildcard in its path.

Parameters:

wildCardPath - an AlluxioURI that may or may not contain a wildcard

cl - object containing the original commandLine

Throws:

java.io.IOException