alluxio.underfs.cos

Class COSUnderFileSystem

java.lang.Object

alluxio.underfs.BaseUnderFileSystem

alluxio.underfs.ObjectUnderFileSystem

alluxio.underfs.cos.COSUnderFileSystem

All Implemented Interfaces:

UnderFileSystem, java.io.Closeable, java.lang.AutoCloseable

@ThreadSafe
public class COSUnderFileSystem
extends ObjectUnderFileSystem

Tencent Cloud COS UnderFileSystem implementation.

Nested Class Summary

Nested classes/interfaces inherited from class alluxio.underfs.ObjectUnderFileSystem

ObjectUnderFileSystem.DeleteBuffer, ObjectUnderFileSystem.ObjectListingChunk, ObjectUnderFileSystem.ObjectPermissions, ObjectUnderFileSystem.ObjectStatus, ObjectUnderFileSystem.ObjectStoreOperation<T>, ObjectUnderFileSystem.OperationBuffer<T>, ObjectUnderFileSystem.RenameBuffer

Nested classes/interfaces inherited from interface alluxio.underfs.UnderFileSystem

UnderFileSystem.Factory, UnderFileSystem.SpaceType

Field Summary

Fields inherited from class alluxio.underfs.ObjectUnderFileSystem

mExecutorService, mRootKeySupplier, PATH_SEPARATOR, PATH_SEPARATOR_CHAR

Fields inherited from class alluxio.underfs.BaseUnderFileSystem

EMPTY_ACL, mUfsConf, mUri

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	COSUnderFileSystem(AlluxioURI uri, com.qcloud.cos.COSClient client, java.lang.String bucketName, java.lang.String appId, UnderFileSystemConfiguration conf) Constructor for COSUnderFileSystem.

Method Summary

Modifier and Type	Method and Description
protected boolean	copyObject(java.lang.String src, java.lang.String dst)
boolean	createEmptyObject(java.lang.String key)
static COSUnderFileSystem	createInstance(AlluxioURI uri, UnderFileSystemConfiguration conf) Constructs a new instance of COSUnderFileSystem.
protected java.io.OutputStream	createObject(java.lang.String key)
protected boolean	deleteObject(java.lang.String key)
protected java.lang.String	getFolderSuffix()
protected ObjectUnderFileSystem.ObjectListingChunk	getObjectListingChunk(java.lang.String key, boolean recursive)
protected ObjectUnderFileSystem.ObjectStatus	getObjectStatus(java.lang.String key)
protected ObjectUnderFileSystem.ObjectPermissions	getPermissions()
protected java.lang.String	getRootKey()
java.lang.String	getUnderFSType()
boolean	isDirectory(java.lang.String path)
protected java.io.InputStream	openObject(java.lang.String key, OpenOptions options, RetryPolicy retryPolicy)
void	setMode(java.lang.String path, short mode)
void	setOwner(java.lang.String path, java.lang.String user, java.lang.String group)

Methods inherited from class alluxio.underfs.ObjectUnderFileSystem

cleanup, close, connectFromMaster, connectFromWorker, convertToFolderName, create, createNonexistingFile, createNonexistingFile, deleteDirectory, deleteExistingDirectory, deleteExistingDirectory, deleteExistingFile, deleteFile, deleteObjects, getBlockSizeByte, getChildName, getDirectoryStatus, getExistingDirectoryStatus, getExistingFileStatus, getExistingStatus, getFileLocations, getFileLocations, getFileStatus, getListingChunkLength, getListingChunkLengthMax, getObjectListingChunkForPath, getParentPath, getSpace, getStatus, isExistingDirectory, isFile, isObjectStorage, isRoot, listInternal, listStatus, listStatus, mkdirs, mkdirsInternal, open, openExistingFile, openExistingFile, parentExists, renameDirectory, renameFile, renameRenamableDirectory, renameRenamableFile, retryOnException, stripPrefixIfPresent, supportsFlush

Methods inherited from class alluxio.underfs.BaseUnderFileSystem

create, deleteDirectory, exists, getAclPair, getActiveSyncInfo, getConfiguration, getFingerprint, getOperationMode, getParsedFingerprint, getPhysicalStores, isSeekable, mkdirs, open, resolveUri, setAclEntries, startActiveSyncPolling, startSync, stopActiveSyncPolling, stopSync, supportsActiveSync, validatePath

Methods inherited from class java.lang.Object

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

Constructor Detail

COSUnderFileSystem

protected COSUnderFileSystem(AlluxioURI uri,
                             com.qcloud.cos.COSClient client,
                             java.lang.String bucketName,
                             java.lang.String appId,
                             UnderFileSystemConfiguration conf)

Constructor for COSUnderFileSystem.

Parameters:

uri - the AlluxioURI for this UFS

client - Aliyun COS client

bucketName - bucket name of user's configured Alluxio bucket

conf - configuration for this UFS

Method Detail

createInstance

public static COSUnderFileSystem createInstance(AlluxioURI uri,
                                                UnderFileSystemConfiguration conf)
                                         throws java.lang.Exception

Constructs a new instance of COSUnderFileSystem.

Parameters:

uri - the AlluxioURI for this UFS

conf - the configuration for this UFS

Returns:

the created COSUnderFileSystem instance

Throws:

java.lang.Exception

getUnderFSType

public java.lang.String getUnderFSType()

setOwner

public void setOwner(java.lang.String path,
                     java.lang.String user,
                     java.lang.String group)

setMode

public void setMode(java.lang.String path,
                    short mode)

copyObject

protected boolean copyObject(java.lang.String src,
                             java.lang.String dst)

Specified by:

copyObject in class ObjectUnderFileSystem

createEmptyObject

public boolean createEmptyObject(java.lang.String key)

Specified by:

createEmptyObject in class ObjectUnderFileSystem

createObject

protected java.io.OutputStream createObject(java.lang.String key)
                                     throws java.io.IOException

Specified by:

createObject in class ObjectUnderFileSystem

Throws:

java.io.IOException

deleteObject

protected boolean deleteObject(java.lang.String key)

Specified by:

deleteObject in class ObjectUnderFileSystem

getFolderSuffix

protected java.lang.String getFolderSuffix()

Specified by:

getFolderSuffix in class ObjectUnderFileSystem

getObjectListingChunk

protected ObjectUnderFileSystem.ObjectListingChunk getObjectListingChunk(java.lang.String key,
                                                                         boolean recursive)
                                                                  throws java.io.IOException

Specified by:

getObjectListingChunk in class ObjectUnderFileSystem

Throws:

java.io.IOException

isDirectory

public boolean isDirectory(java.lang.String path)
                    throws java.io.IOException

Specified by:

isDirectory in interface UnderFileSystem

Overrides:

isDirectory in class ObjectUnderFileSystem

Throws:

java.io.IOException

getObjectStatus

protected ObjectUnderFileSystem.ObjectStatus getObjectStatus(java.lang.String key)

Specified by:

getObjectStatus in class ObjectUnderFileSystem

getPermissions

protected ObjectUnderFileSystem.ObjectPermissions getPermissions()

Specified by:

getPermissions in class ObjectUnderFileSystem

getRootKey

protected java.lang.String getRootKey()

Specified by:

getRootKey in class ObjectUnderFileSystem

openObject

protected java.io.InputStream openObject(java.lang.String key,
                                         OpenOptions options,
                                         RetryPolicy retryPolicy)
                                  throws java.io.IOException

Specified by:

openObject in class ObjectUnderFileSystem

Throws:

java.io.IOException