Package org.apache.hadoop.fs.http.server

Class FSOperations

java.lang.Object

org.apache.hadoop.fs.http.server.FSOperations

@Private
public final class FSOperations
extends java.lang.Object

FileSystem operation executors used by HttpFSServer.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FSOperations.FSAccess	Executor that performs a check access operation.
static class	FSOperations.FSAclStatus	Executor that gets the ACL information for a given file.
static class	FSOperations.FSAllowSnapshot	Executor that performs an allowSnapshot operation.
static class	FSOperations.FSAppend	Executor that performs an append FileSystemAccess files system operation.
static class	FSOperations.FSConcat	Executor that performs a concat FileSystemAccess files system operation.
static class	FSOperations.FSContentSummary	Executor that performs a content-summary FileSystemAccess files system operation.
static class	FSOperations.FSCreate	Executor that performs a create FileSystemAccess files system operation.
static class	FSOperations.FSCreateSnapshot	Executor that performs a createSnapshot FileSystemAccess operation.
static class	FSOperations.FSDelete	Executor that performs a delete FileSystemAccess files system operation.
static class	FSOperations.FSDeleteSnapshot	Executor that performs a deleteSnapshot FileSystemAccess operation.
static class	FSOperations.FSDisallowSnapshot	Executor that performs an disallowSnapshot operation.
static class	FSOperations.FSFileBlockLocations	Executor that performs a getFileBlockLocations operation.
static class	FSOperations.FSFileBlockLocationsLegacy	Executor that performs a getFileBlockLocations operation for legacy clients that supports only GET_BLOCK_LOCATIONS.
static class	FSOperations.FSFileChecksum	Executor that performs a file-checksum FileSystemAccess files system operation.
static class	FSOperations.FSFileLinkStatus	Executor that performs a linkFile-status FileSystemAccess files system operation.
static class	FSOperations.FSFileStatus	Executor that performs a file-status FileSystemAccess files system operation.
static class	FSOperations.FSGetAllStoragePolicies	Executor that performs a getAllStoragePolicies FileSystemAccess files system operation.
static class	FSOperations.FSGetErasureCodingCodecs	Executor that performs a FSGetErasureCodingCodecs operation.
static class	FSOperations.FSGetErasureCodingPolicies	Executor that performs a FSGetErasureCodingPolicies operation.
static class	FSOperations.FSGetErasureCodingPolicy	Executor that performs a getErasureCodingPolicy operation.
static class	FSOperations.FSGetServerDefaults	Executor that performs a getServerDefaults operation.
static class	FSOperations.FSGetSnapshotDiff	Executor that performs a getSnapshotDiff operation.
static class	FSOperations.FSGetSnapshotDiffListing	Executor that performs a getSnapshotDiffListing operation.
static class	FSOperations.FSGetSnapshotListing	Executor that performs a getSnapshotListing operation.
static class	FSOperations.FSGetSnapshottableDirListing	Executor that performs a getSnapshottableDirListing operation.
static class	FSOperations.FSGetStoragePolicy	Executor that performs a getStoragePolicy FileSystemAccess files system operation.
static class	FSOperations.FSGetTrashRoots	Executor that performs a FSGetTrashRoots operation.
static class	FSOperations.FSGetXAttrs	Executor that performs getting xattrs FileSystemAccess files system operation.
static class	FSOperations.FSHomeDir	Executor that performs a home-dir FileSystemAccess files system operation.
static class	FSOperations.FSListStatus	Executor that performs a list-status FileSystemAccess files system operation.
static class	FSOperations.FSListStatusBatch	Executor that performs a batched directory listing.
static class	FSOperations.FSListXAttrs	Executor that performs listing xattrs FileSystemAccess files system operation.
static class	FSOperations.FSMkdirs	Executor that performs a mkdirs FileSystemAccess files system operation.
static class	FSOperations.FSModifyAclEntries	Executor that modifies acl entries for a file in a FileSystem
static class	FSOperations.FSOpen	Executor that performs a open FileSystemAccess files system operation.
static class	FSOperations.FSQuotaUsage	Executor that performs a quota-usage FileSystemAccess files system operation.
static class	FSOperations.FSRemoveAcl	Executor that removes all acls from a file in a FileSystem
static class	FSOperations.FSRemoveAclEntries	Executor that removes acl entries from a file in a FileSystem
static class	FSOperations.FSRemoveDefaultAcl	Executor that removes the default acl from a directory in a FileSystem
static class	FSOperations.FSRemoveXAttr	Executor that performs a removexattr FileSystemAccess files system operation.
static class	FSOperations.FSRename	Executor that performs a rename FileSystemAccess files system operation.
static class	FSOperations.FSRenameSnapshot	Executor that performs a renameSnapshot FileSystemAccess operation.
static class	FSOperations.FSSatisyStoragePolicy	Executor that performs a satisfyStoragePolicy operation.
static class	FSOperations.FSSetAcl	Executor that sets the acl for a file in a FileSystem
static class	FSOperations.FSSetErasureCodingPolicy	Executor that performs a setErasureCodingPolicy operation.
static class	FSOperations.FSSetOwner	Executor that performs a set-owner FileSystemAccess files system operation.
static class	FSOperations.FSSetPermission	Executor that performs a set-permission FileSystemAccess files system operation.
static class	FSOperations.FSSetReplication	Executor that performs a set-replication FileSystemAccess files system operation.
static class	FSOperations.FSSetStoragePolicy	Executor that performs a setStoragePolicy FileSystemAccess files system operation.
static class	FSOperations.FSSetTimes	Executor that performs a set-times FileSystemAccess files system operation.
static class	FSOperations.FSSetXAttr	Executor that performs a setxattr FileSystemAccess files system operation.
static class	FSOperations.FSStatus	Executor that performs a getFsStatus operation.
static class	FSOperations.FSTrashRoot	Executor that performs getting trash root FileSystemAccess files system operation.
static class	FSOperations.FSTruncate	Executor that performs a truncate FileSystemAccess files system operation.
static class	FSOperations.FSUnSetErasureCodingPolicy	Executor that performs a unsetErasureCodingPolicy operation.
static class	FSOperations.FSUnsetStoragePolicy	Executor that performs a unsetStoragePolicy FileSystemAccess files system operation.

Method Summary

Modifier and Type	Method	Description
static long	copyBytes(java.io.InputStream in, java.io.OutputStream out)	These copyBytes methods combines the two different flavors used originally.
static long	copyBytes(java.io.InputStream in, java.io.OutputStream out, long count)
static void	setBufferSize(org.apache.hadoop.conf.Configuration conf)	Set the buffer size.

Methods inherited from class java.lang.Object

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

Method Detail

setBufferSize

public static void setBufferSize(org.apache.hadoop.conf.Configuration conf)

Set the buffer size. The size is set during the initialization of HttpFSServerWebApp.

Parameters:

conf - the configuration to get the bufferSize

copyBytes

public static long copyBytes(java.io.InputStream in,
                             java.io.OutputStream out)
                      throws java.io.IOException

These copyBytes methods combines the two different flavors used originally. One with length and another one with buffer size. In this impl, buffer size is determined internally, which is a singleton normally set during initialization.

Parameters:

in - the inputStream

out - the outputStream

Returns:

the totalBytes

Throws:

java.io.IOException - the exception to be thrown.

copyBytes

public static long copyBytes(java.io.InputStream in,
                             java.io.OutputStream out,
                             long count)
                      throws java.io.IOException

Throws:

java.io.IOException