HttpFSFileSystem (Apache Hadoop HttpFS 2.7.4.0 API)

java.lang.Object
- org.apache.hadoop.conf.Configured
- - org.apache.hadoop.fs.FileSystem
  - - org.apache.hadoop.fs.http.client.HttpFSFileSystem

All Implemented Interfaces:

Closeable, AutoCloseable, Configurable, DelegationTokenRenewer.Renewable

Direct Known Subclasses:

HttpsFSFileSystem
```
@InterfaceAudience.Private
public class HttpFSFileSystem
extends FileSystem
implements DelegationTokenRenewer.Renewable
```
HttpFSServer implementation of the FileSystemAccess FileSystem.
This implementation allows a user to access HDFS over HTTP via a HttpFSServer server.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class HttpFSFileSystem.FILE_TYPE

static class HttpFSFileSystem.Operation
- Nested classes/interfaces inherited from class org.apache.hadoop.fs.FileSystem
  FileSystem.Statistics

Nested Classes
Modifier and Type	Class and Description
`static class`	`HttpFSFileSystem.FILE_TYPE`
`static class`	`HttpFSFileSystem.Operation`

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`ACCESS_TIME_JSON`
`static String`	`ACCESS_TIME_PARAM`
`static String`	`ACL_BIT_JSON`
`static String`	`ACL_ENTRIES_JSON`
`static String`	`ACL_STATUS_JSON`
`static String`	`ACL_STICKY_BIT_JSON`
`static String`	`ACLSPEC_DEFAULT`
`static String`	`ACLSPEC_PARAM`
`static String`	`BLOCK_SIZE_JSON`
`static String`	`BLOCKSIZE_PARAM`
`static String`	`CHECKSUM_ALGORITHM_JSON`
`static String`	`CHECKSUM_BYTES_JSON`
`static String`	`CHECKSUM_LENGTH_JSON`
`static String`	`CONTENT_SUMMARY_DIRECTORY_COUNT_JSON`
`static String`	`CONTENT_SUMMARY_FILE_COUNT_JSON`
`static String`	`CONTENT_SUMMARY_JSON`
`static String`	`CONTENT_SUMMARY_LENGTH_JSON`
`static String`	`CONTENT_SUMMARY_QUOTA_JSON`
`static String`	`CONTENT_SUMMARY_SPACE_CONSUMED_JSON`
`static String`	`CONTENT_SUMMARY_SPACE_QUOTA_JSON`
`static Short`	`DEFAULT_PERMISSION`
`static String`	`DELETE_JSON`
`static String`	`DESTINATION_PARAM`
`static String`	`DO_AS_PARAM`
`static String`	`FILE_CHECKSUM_JSON`
`static String`	`FILE_STATUS_JSON`
`static String`	`FILE_STATUSES_JSON`
`static String`	`GROUP_JSON`
`static String`	`GROUP_PARAM`
`static String`	`HOME_DIR_JSON`
`static int`	`HTTP_TEMPORARY_REDIRECT`
`static String`	`LENGTH_JSON`
`static String`	`MKDIRS_JSON`
`static String`	`MODIFICATION_TIME_JSON`
`static String`	`MODIFICATION_TIME_PARAM`
`static String`	`NEW_LENGTH_PARAM`
`static String`	`OP_PARAM`
`static String`	`OVERWRITE_PARAM`
`static String`	`OWNER_JSON`
`static String`	`OWNER_PARAM`
`static String`	`PATH_SUFFIX_JSON`
`static String`	`PERMISSION_JSON`
`static String`	`PERMISSION_PARAM`
`static String`	`RECURSIVE_PARAM`
`static String`	`RENAME_JSON`
`static String`	`REPLICATION_JSON`
`static String`	`REPLICATION_PARAM`
`static String`	`SCHEME`
`static String`	`SERVICE_NAME`
`static String`	`SERVICE_VERSION`
`static String`	`SET_REPLICATION_JSON`
`static String`	`SOURCES_PARAM`
`static String`	`TRUNCATE_JSON`
`static String`	`TYPE_JSON`
`static String`	`UPLOAD_CONTENT_TYPE`
`static String`	`XATTR_ENCODING_PARAM`
`static String`	`XATTR_NAME_JSON`
`static String`	`XATTR_NAME_PARAM`
`static String`	`XATTR_SET_FLAG_PARAM`
`static String`	`XATTR_VALUE_JSON`
`static String`	`XATTR_VALUE_PARAM`
`static String`	`XATTRNAMES_JSON`
`static String`	`XATTRS_JSON`

Fields inherited from class org.apache.hadoop.fs.FileSystem
DEFAULT_FS, FS_DEFAULT_NAME_KEY, LOG, SHUTDOWN_HOOK_PRIORITY, statistics

Constructor Summary

Constructors
Constructor and Description

HttpFSFileSystem()

Constructors
Constructor and Description
`HttpFSFileSystem()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`FSDataOutputStream`	`append(Path f, int bufferSize, Progressable progress)` Append to an existing file (optional operation).
`void`	`cancelDelegationToken(org.apache.hadoop.security.token.Token<?> token)`
`void`	`concat(Path f, Path[] psrcs)` Concat existing files together.
`FSDataOutputStream`	`create(Path f, FsPermission permission, boolean overwrite, int bufferSize, short replication, long blockSize, Progressable progress)` Opens an FSDataOutputStream at the indicated Path with write-progress reporting.
`boolean`	`delete(Path f)` Deprecated. Use delete(Path, boolean) instead
`boolean`	`delete(Path f, boolean recursive)` Delete a file.
`AclStatus`	`getAclStatus(Path path)` Get the ACL information for a given file
`ContentSummary`	`getContentSummary(Path f)`
`protected int`	`getDefaultPort()` Get the default port for this file system.
`org.apache.hadoop.security.token.Token<?>`	`getDelegationToken(String renewer)`
`FileChecksum`	`getFileChecksum(Path f)`
`FileStatus`	`getFileStatus(Path f)` Return a file status object that represents the path.
`Path`	`getHomeDirectory()` Return the current user's home directory in this filesystem.
`org.apache.hadoop.security.token.Token<?>`	`getRenewToken()`
`String`	`getScheme()`
`URI`	`getUri()` Returns a URI whose scheme and authority identify this FileSystem.
`Path`	`getWorkingDirectory()` Get the current working directory for the given file system
`byte[]`	`getXAttr(Path f, String name)`
`Map<String,byte[]>`	`getXAttrs(Path f)`
`Map<String,byte[]>`	`getXAttrs(Path f, List<String> names)`
`void`	`initialize(URI name, Configuration conf)` Called after a new FileSystem instance is constructed.
`FileStatus[]`	`listStatus(Path f)` List the statuses of the files/directories in the given path if the path is a directory.
`List<String>`	`listXAttrs(Path f)`
`boolean`	`mkdirs(Path f, FsPermission permission)` Make the given file and all non-existent parents into directories.
`void`	`modifyAclEntries(Path path, List<AclEntry> aclSpec)` Modify the ACL entries for a file.
`FSDataInputStream`	`open(Path f, int bufferSize)` Opens an FSDataInputStream at the indicated Path.
`static String`	`permissionToString(FsPermission p)` Converts a `FsPermission` to a Unix octal representation.
`void`	`removeAcl(Path path)` Remove all ACLs from a file
`void`	`removeAclEntries(Path path, List<AclEntry> aclSpec)` Remove the specified ACL entries from a file
`void`	`removeDefaultAcl(Path path)` Removes the default ACL for the given file
`void`	`removeXAttr(Path f, String name)`
`boolean`	`rename(Path src, Path dst)` Renames Path src to Path dst.
`long`	`renewDelegationToken(org.apache.hadoop.security.token.Token<?> token)`
`void`	`setAcl(Path path, List<AclEntry> aclSpec)` Set the ACLs for the given file
`<T extends org.apache.hadoop.security.token.TokenIdentifier> void`	`setDelegationToken(org.apache.hadoop.security.token.Token<T> token)`
`void`	`setOwner(Path p, String username, String groupname)` Set owner of a path (i.e.
`void`	`setPermission(Path p, FsPermission permission)` Set permission of a path.
`boolean`	`setReplication(Path src, short replication)` Set replication for an existing file.
`void`	`setTimes(Path p, long mtime, long atime)` Set access time of a file
`void`	`setWorkingDirectory(Path newDir)` Set the current working directory for the given file system.
`void`	`setXAttr(Path f, String name, byte[] value, EnumSet<XAttrSetFlag> flag)`
`boolean`	`truncate(Path f, long newLength)` Truncate a file.

Methods inherited from class org.apache.hadoop.fs.FileSystem
access, addDelegationTokens, append, append, areSymlinksEnabled, cancelDeleteOnExit, canonicalizeUri, checkPath, clearStatistics, close, closeAll, closeAllForUGI, completeLocalOutput, copyFromLocalFile, copyFromLocalFile, copyFromLocalFile, copyFromLocalFile, copyToLocalFile, copyToLocalFile, copyToLocalFile, create, create, create, create, create, create, create, create, create, create, create, create, createNewFile, createNonRecursive, createNonRecursive, createNonRecursive, createSnapshot, createSnapshot, createSymlink, deleteOnExit, deleteSnapshot, enableSymlinks, exists, fixRelativePart, get, get, get, getAllStatistics, getBlockSize, getCanonicalServiceName, getCanonicalUri, getChildFileSystems, getDefaultBlockSize, getDefaultBlockSize, getDefaultReplication, getDefaultReplication, getDefaultUri, getFileBlockLocations, getFileBlockLocations, getFileChecksum, getFileLinkStatus, getFileSystemClass, getFSofPath, getInitialWorkingDirectory, getLength, getLinkTarget, getLocal, getName, getNamed, getReplication, getServerDefaults, getServerDefaults, getStatistics, getStatistics, getStatus, getStatus, getUsed, globStatus, globStatus, isDirectory, isFile, listCorruptFileBlocks, listFiles, listLocatedStatus, listLocatedStatus, listStatus, listStatus, listStatus, listStatusIterator, makeQualified, mkdirs, mkdirs, moveFromLocalFile, moveFromLocalFile, moveToLocalFile, newInstance, newInstance, newInstance, newInstanceLocal, open, primitiveCreate, primitiveMkdir, primitiveMkdir, printStatistics, processDeleteOnExit, rename, renameSnapshot, resolveLink, resolvePath, setDefaultUri, setDefaultUri, setVerifyChecksum, setWriteChecksum, setXAttr, startLocalOutput, supportsSymlinks

Methods inherited from class org.apache.hadoop.conf.Configured
getConf, setConf

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SERVICE_NAME
```
public static final String SERVICE_NAME
```
    See Also:
    
    Constant Field Values
  - SERVICE_VERSION
```
public static final String SERVICE_VERSION
```
    See Also:
    
    Constant Field Values
  - SCHEME
```
public static final String SCHEME
```
    See Also:
    
    Constant Field Values
  - OP_PARAM
```
public static final String OP_PARAM
```
    See Also:
    
    Constant Field Values
  - DO_AS_PARAM
```
public static final String DO_AS_PARAM
```
    See Also:
    
    Constant Field Values
  - OVERWRITE_PARAM
```
public static final String OVERWRITE_PARAM
```
    See Also:
    
    Constant Field Values
  - REPLICATION_PARAM
```
public static final String REPLICATION_PARAM
```
    See Also:
    
    Constant Field Values
  - BLOCKSIZE_PARAM
```
public static final String BLOCKSIZE_PARAM
```
    See Also:
    
    Constant Field Values
  - PERMISSION_PARAM
```
public static final String PERMISSION_PARAM
```
    See Also:
    
    Constant Field Values
  - ACLSPEC_PARAM
```
public static final String ACLSPEC_PARAM
```
    See Also:
    
    Constant Field Values
  - DESTINATION_PARAM
```
public static final String DESTINATION_PARAM
```
    See Also:
    
    Constant Field Values
  - RECURSIVE_PARAM
```
public static final String RECURSIVE_PARAM
```
    See Also:
    
    Constant Field Values
  - SOURCES_PARAM
```
public static final String SOURCES_PARAM
```
    See Also:
    
    Constant Field Values
  - OWNER_PARAM
```
public static final String OWNER_PARAM
```
    See Also:
    
    Constant Field Values
  - GROUP_PARAM
```
public static final String GROUP_PARAM
```
    See Also:
    
    Constant Field Values
  - MODIFICATION_TIME_PARAM
```
public static final String MODIFICATION_TIME_PARAM
```
    See Also:
    
    Constant Field Values
  - ACCESS_TIME_PARAM
```
public static final String ACCESS_TIME_PARAM
```
    See Also:
    
    Constant Field Values
  - XATTR_NAME_PARAM
```
public static final String XATTR_NAME_PARAM
```
    See Also:
    
    Constant Field Values
  - XATTR_VALUE_PARAM
```
public static final String XATTR_VALUE_PARAM
```
    See Also:
    
    Constant Field Values
  - XATTR_SET_FLAG_PARAM
```
public static final String XATTR_SET_FLAG_PARAM
```
    See Also:
    
    Constant Field Values
  - XATTR_ENCODING_PARAM
```
public static final String XATTR_ENCODING_PARAM
```
    See Also:
    
    Constant Field Values
  - NEW_LENGTH_PARAM
```
public static final String NEW_LENGTH_PARAM
```
    See Also:
    
    Constant Field Values
  - DEFAULT_PERMISSION
```
public static final Short DEFAULT_PERMISSION
```
  - ACLSPEC_DEFAULT
```
public static final String ACLSPEC_DEFAULT
```
    See Also:
    
    Constant Field Values
  - RENAME_JSON
```
public static final String RENAME_JSON
```
    See Also:
    
    Constant Field Values
  - TRUNCATE_JSON
```
public static final String TRUNCATE_JSON
```
    See Also:
    
    Constant Field Values
  - DELETE_JSON
```
public static final String DELETE_JSON
```
    See Also:
    
    Constant Field Values
  - MKDIRS_JSON
```
public static final String MKDIRS_JSON
```
    See Also:
    
    Constant Field Values
  - HOME_DIR_JSON
```
public static final String HOME_DIR_JSON
```
    See Also:
    
    Constant Field Values
  - SET_REPLICATION_JSON
```
public static final String SET_REPLICATION_JSON
```
    See Also:
    
    Constant Field Values
  - UPLOAD_CONTENT_TYPE
```
public static final String UPLOAD_CONTENT_TYPE
```
    See Also:
    
    Constant Field Values
  - FILE_STATUSES_JSON
```
public static final String FILE_STATUSES_JSON
```
    See Also:
    
    Constant Field Values
  - FILE_STATUS_JSON
```
public static final String FILE_STATUS_JSON
```
    See Also:
    
    Constant Field Values
  - PATH_SUFFIX_JSON
```
public static final String PATH_SUFFIX_JSON
```
    See Also:
    
    Constant Field Values
  - TYPE_JSON
```
public static final String TYPE_JSON
```
    See Also:
    
    Constant Field Values
  - LENGTH_JSON
```
public static final String LENGTH_JSON
```
    See Also:
    
    Constant Field Values
  - OWNER_JSON
```
public static final String OWNER_JSON
```
    See Also:
    
    Constant Field Values
  - GROUP_JSON
```
public static final String GROUP_JSON
```
    See Also:
    
    Constant Field Values
  - PERMISSION_JSON
```
public static final String PERMISSION_JSON
```
    See Also:
    
    Constant Field Values
  - ACCESS_TIME_JSON
```
public static final String ACCESS_TIME_JSON
```
    See Also:
    
    Constant Field Values
  - MODIFICATION_TIME_JSON
```
public static final String MODIFICATION_TIME_JSON
```
    See Also:
    
    Constant Field Values
  - BLOCK_SIZE_JSON
```
public static final String BLOCK_SIZE_JSON
```
    See Also:
    
    Constant Field Values
  - REPLICATION_JSON
```
public static final String REPLICATION_JSON
```
    See Also:
    
    Constant Field Values
  - XATTRS_JSON
```
public static final String XATTRS_JSON
```
    See Also:
    
    Constant Field Values
  - XATTR_NAME_JSON
```
public static final String XATTR_NAME_JSON
```
    See Also:
    
    Constant Field Values
  - XATTR_VALUE_JSON
```
public static final String XATTR_VALUE_JSON
```
    See Also:
    
    Constant Field Values
  - XATTRNAMES_JSON
```
public static final String XATTRNAMES_JSON
```
    See Also:
    
    Constant Field Values
  - FILE_CHECKSUM_JSON
```
public static final String FILE_CHECKSUM_JSON
```
    See Also:
    
    Constant Field Values
  - CHECKSUM_ALGORITHM_JSON
```
public static final String CHECKSUM_ALGORITHM_JSON
```
    See Also:
    
    Constant Field Values
  - CHECKSUM_BYTES_JSON
```
public static final String CHECKSUM_BYTES_JSON
```
    See Also:
    
    Constant Field Values
  - CHECKSUM_LENGTH_JSON
```
public static final String CHECKSUM_LENGTH_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_JSON
```
public static final String CONTENT_SUMMARY_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_DIRECTORY_COUNT_JSON
```
public static final String CONTENT_SUMMARY_DIRECTORY_COUNT_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_FILE_COUNT_JSON
```
public static final String CONTENT_SUMMARY_FILE_COUNT_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_LENGTH_JSON
```
public static final String CONTENT_SUMMARY_LENGTH_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_QUOTA_JSON
```
public static final String CONTENT_SUMMARY_QUOTA_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_SPACE_CONSUMED_JSON
```
public static final String CONTENT_SUMMARY_SPACE_CONSUMED_JSON
```
    See Also:
    
    Constant Field Values
  - CONTENT_SUMMARY_SPACE_QUOTA_JSON
```
public static final String CONTENT_SUMMARY_SPACE_QUOTA_JSON
```
    See Also:
    
    Constant Field Values
  - ACL_STATUS_JSON
```
public static final String ACL_STATUS_JSON
```
    See Also:
    
    Constant Field Values
  - ACL_STICKY_BIT_JSON
```
public static final String ACL_STICKY_BIT_JSON
```
    See Also:
    
    Constant Field Values
  - ACL_ENTRIES_JSON
```
public static final String ACL_ENTRIES_JSON
```
    See Also:
    
    Constant Field Values
  - ACL_BIT_JSON
```
public static final String ACL_BIT_JSON
```
    See Also:
    
    Constant Field Values
  - HTTP_TEMPORARY_REDIRECT
```
public static final int HTTP_TEMPORARY_REDIRECT
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - HttpFSFileSystem
```
public HttpFSFileSystem()
```
- Method Detail
  - initialize
```
public void initialize(URI name,
                       Configuration conf)
                throws IOException
```
    Called after a new FileSystem instance is constructed.
    
    Overrides:
    
    initialize in class FileSystem
    
    Parameters:
    
    name - a uri whose authority section names the host, port, etc. for this FileSystem
    
    conf - the configuration
    
    Throws:
    
    IOException
  - getScheme
```
public String getScheme()
```
    Overrides:
    
    getScheme in class FileSystem
  - getUri
```
public URI getUri()
```
    Returns a URI whose scheme and authority identify this FileSystem.
    
    Specified by:
    
    getUri in class FileSystem
    
    Returns:
    
    the URI whose scheme and authority identify this FileSystem.
  - getDefaultPort
```
protected int getDefaultPort()
```
    Get the default port for this file system.
    
    Overrides:
    
    getDefaultPort in class FileSystem
    
    Returns:
    
    the default port or 0 if there isn't one
  - open
```
public FSDataInputStream open(Path f,
                              int bufferSize)
                       throws IOException
```
    Opens an FSDataInputStream at the indicated Path.
    IMPORTANT: the returned FSDataInputStream does not support the PositionReadable and Seekable methods.
    
    Specified by:
    
    open in class FileSystem
    
    Parameters:
    
    f - the file name to open
    
    bufferSize - the size of the buffer to be used.
    
    Throws:
    
    IOException
  - permissionToString
```
public static String permissionToString(FsPermission p)
```
    Converts a FsPermission to a Unix octal representation.
    
    Parameters:
    
    p - the permission.
    
    Returns:
    
    the Unix string symbolic reprentation.
  - create
```
public FSDataOutputStream create(Path f,
                                 FsPermission permission,
                                 boolean overwrite,
                                 int bufferSize,
                                 short replication,
                                 long blockSize,
                                 Progressable progress)
                          throws IOException
```
    Opens an FSDataOutputStream at the indicated Path with write-progress reporting.
    IMPORTANT: The Progressable parameter is not used.
    
    Specified by:
    
    create in class FileSystem
    
    Parameters:
    
    f - the file name to open.
    
    permission - file permission.
    
    overwrite - if a file with this name already exists, then if true, the file will be overwritten, and if false an error will be thrown.
    
    bufferSize - the size of the buffer to be used.
    
    replication - required block replication for the file.
    
    blockSize - block size.
    
    progress - progressable.
    
    Throws:
    
    IOException
    
    See Also:
    
    setPermission(Path, FsPermission)
  - append
```
public FSDataOutputStream append(Path f,
                                 int bufferSize,
                                 Progressable progress)
                          throws IOException
```
    Append to an existing file (optional operation).
    IMPORTANT: The Progressable parameter is not used.
    
    Specified by:
    
    append in class FileSystem
    
    Parameters:
    
    f - the existing file to be appended.
    
    bufferSize - the size of the buffer to be used.
    
    progress - for reporting progress if it is not null.
    
    Throws:
    
    IOException
  - truncate
```
public boolean truncate(Path f,
                        long newLength)
                 throws IOException
```
    Truncate a file.
    
    Overrides:
    
    truncate in class FileSystem
    
    Parameters:
    
    f - the file to be truncated.
    
    newLength - The size the file is to be truncated to.
    
    Throws:
    
    IOException
  - concat
```
public void concat(Path f,
                   Path[] psrcs)
            throws IOException
```
    Concat existing files together.
    
    Overrides:
    
    concat in class FileSystem
    
    Parameters:
    
    f - the path to the target destination.
    
    psrcs - the paths to the sources to use for the concatenation.
    
    Throws:
    
    IOException
  - rename
```
public boolean rename(Path src,
                      Path dst)
               throws IOException
```
    Renames Path src to Path dst. Can take place on local fs or remote DFS.
    
    Specified by:
    
    rename in class FileSystem
    
    Throws:
    
    IOException
  - delete
```
@Deprecated
public boolean delete(Path f)
                           throws IOException
```
    Deprecated. Use delete(Path, boolean) instead
    
    Delete a file.
    
    Overrides:
    
    delete in class FileSystem
    
    Throws:
    
    IOException
  - delete
```
public boolean delete(Path f,
                      boolean recursive)
               throws IOException
```
    Delete a file.
    
    Specified by:
    
    delete in class FileSystem
    
    Parameters:
    
    f - the path to delete.
    
    recursive - if path is a directory and set to true, the directory is deleted else throws an exception. In case of a file the recursive can be set to either true or false.
    
    Returns:
    
    true if delete is successful else false.
    
    Throws:
    
    IOException
  - listStatus
```
public FileStatus[] listStatus(Path f)
                        throws IOException
```
    List the statuses of the files/directories in the given path if the path is a directory.
    
    Specified by:
    
    listStatus in class FileSystem
    
    Parameters:
    
    f - given path
    
    Returns:
    
    the statuses of the files/directories in the given patch
    
    Throws:
    
    IOException
  - setWorkingDirectory
```
public void setWorkingDirectory(Path newDir)
```
    Set the current working directory for the given file system. All relative paths will be resolved relative to it.
    
    Specified by:
    
    setWorkingDirectory in class FileSystem
    
    Parameters:
    
    newDir - new directory.
  - getWorkingDirectory
```
public Path getWorkingDirectory()
```
    Get the current working directory for the given file system
    
    Specified by:
    
    getWorkingDirectory in class FileSystem
    
    Returns:
    
    the directory pathname
  - mkdirs
```
public boolean mkdirs(Path f,
                      FsPermission permission)
               throws IOException
```
    Make the given file and all non-existent parents into directories. Has the semantics of Unix 'mkdir -p'. Existence of the directory hierarchy is not an error.
    
    Specified by:
    
    mkdirs in class FileSystem
    
    Throws:
    
    IOException
  - getFileStatus
```
public FileStatus getFileStatus(Path f)
                         throws IOException
```
    Return a file status object that represents the path.
    
    Specified by:
    
    getFileStatus in class FileSystem
    
    Parameters:
    
    f - The path we want information from
    
    Returns:
    
    a FileStatus object
    
    Throws:
    
    FileNotFoundException - when the path does not exist; IOException see specific implementation
    
    IOException
  - getHomeDirectory
```
public Path getHomeDirectory()
```
    Return the current user's home directory in this filesystem. The default implementation returns "/user/$USER/".
    
    Overrides:
    
    getHomeDirectory in class FileSystem
  - setOwner
```
public void setOwner(Path p,
                     String username,
                     String groupname)
              throws IOException
```
    Set owner of a path (i.e. a file or a directory). The parameters username and groupname cannot both be null.
    
    Overrides:
    
    setOwner in class FileSystem
    
    Parameters:
    
    p - The path
    
    username - If it is null, the original username remains unchanged.
    
    groupname - If it is null, the original groupname remains unchanged.
    
    Throws:
    
    IOException
  - setPermission
```
public void setPermission(Path p,
                          FsPermission permission)
                   throws IOException
```
    Set permission of a path.
    
    Overrides:
    
    setPermission in class FileSystem
    
    Parameters:
    
    p - path.
    
    permission - permission.
    
    Throws:
    
    IOException
  - setTimes
```
public void setTimes(Path p,
                     long mtime,
                     long atime)
              throws IOException
```
    Set access time of a file
    
    Overrides:
    
    setTimes in class FileSystem
    
    Parameters:
    
    p - The path
    
    mtime - Set the modification time of this file. The number of milliseconds since Jan 1, 1970. A value of -1 means that this call should not set modification time.
    
    atime - Set the access time of this file. The number of milliseconds since Jan 1, 1970. A value of -1 means that this call should not set access time.
    
    Throws:
    
    IOException
  - setReplication
```
public boolean setReplication(Path src,
                              short replication)
                       throws IOException
```
    Set replication for an existing file.
    
    Overrides:
    
    setReplication in class FileSystem
    
    Parameters:
    
    src - file name
    
    replication - new replication
    
    Returns:
    
    true if successful; false if file does not exist or is a directory
    
    Throws:
    
    IOException
  - modifyAclEntries
```
public void modifyAclEntries(Path path,
                             List<AclEntry> aclSpec)
                      throws IOException
```
    Modify the ACL entries for a file.
    
    Overrides:
    
    modifyAclEntries in class FileSystem
    
    Parameters:
    
    path - Path to modify
    
    aclSpec - describing modifications
    
    Throws:
    
    IOException
  - removeAclEntries
```
public void removeAclEntries(Path path,
                             List<AclEntry> aclSpec)
                      throws IOException
```
    Remove the specified ACL entries from a file
    
    Overrides:
    
    removeAclEntries in class FileSystem
    
    Parameters:
    
    path - Path to modify
    
    aclSpec - describing entries to remove
    
    Throws:
    
    IOException
  - removeDefaultAcl
```
public void removeDefaultAcl(Path path)
                      throws IOException
```
    Removes the default ACL for the given file
    
    Overrides:
    
    removeDefaultAcl in class FileSystem
    
    Parameters:
    
    path - Path from which to remove the default ACL.
    
    Throws:
    
    IOException
  - removeAcl
```
public void removeAcl(Path path)
               throws IOException
```
    Remove all ACLs from a file
    
    Overrides:
    
    removeAcl in class FileSystem
    
    Parameters:
    
    path - Path from which to remove all ACLs
    
    Throws:
    
    IOException
  - setAcl
```
public void setAcl(Path path,
                   List<AclEntry> aclSpec)
            throws IOException
```
    Set the ACLs for the given file
    
    Overrides:
    
    setAcl in class FileSystem
    
    Parameters:
    
    path - Path to modify
    
    aclSpec - describing modifications, must include entries for user, group, and others for compatibility with permission bits.
    
    Throws:
    
    IOException
  - getAclStatus
```
public AclStatus getAclStatus(Path path)
                       throws IOException
```
    Get the ACL information for a given file
    
    Overrides:
    
    getAclStatus in class FileSystem
    
    Parameters:
    
    path - Path to acquire ACL info for
    
    Returns:
    
    the ACL information in JSON format
    
    Throws:
    
    IOException
  - getContentSummary
```
public ContentSummary getContentSummary(Path f)
                                 throws IOException
```
    Overrides:
    
    getContentSummary in class FileSystem
    
    Throws:
    
    IOException
  - getFileChecksum
```
public FileChecksum getFileChecksum(Path f)
                             throws IOException
```
    Overrides:
    
    getFileChecksum in class FileSystem
    
    Throws:
    
    IOException
  - getDelegationToken
```
public org.apache.hadoop.security.token.Token<?> getDelegationToken(String renewer)
                                                             throws IOException
```
    Overrides:
    
    getDelegationToken in class FileSystem
    
    Throws:
    
    IOException
  - renewDelegationToken
```
public long renewDelegationToken(org.apache.hadoop.security.token.Token<?> token)
                          throws IOException
```
    Throws:
    
    IOException
  - cancelDelegationToken
```
public void cancelDelegationToken(org.apache.hadoop.security.token.Token<?> token)
                           throws IOException
```
    Throws:
    
    IOException
  - getRenewToken
```
public org.apache.hadoop.security.token.Token<?> getRenewToken()
```
    Specified by:
    
    getRenewToken in interface DelegationTokenRenewer.Renewable
  - setDelegationToken
```
public <T extends org.apache.hadoop.security.token.TokenIdentifier> void setDelegationToken(org.apache.hadoop.security.token.Token<T> token)
```
    Specified by:
    
    setDelegationToken in interface DelegationTokenRenewer.Renewable
  - setXAttr
```
public void setXAttr(Path f,
                     String name,
                     byte[] value,
                     EnumSet<XAttrSetFlag> flag)
              throws IOException
```
    Overrides:
    
    setXAttr in class FileSystem
    
    Throws:
    
    IOException
  - getXAttr
```
public byte[] getXAttr(Path f,
                       String name)
                throws IOException
```
    Overrides:
    
    getXAttr in class FileSystem
    
    Throws:
    
    IOException
  - getXAttrs
```
public Map<String,byte[]> getXAttrs(Path f)
                             throws IOException
```
    Overrides:
    
    getXAttrs in class FileSystem
    
    Throws:
    
    IOException
  - getXAttrs
```
public Map<String,byte[]> getXAttrs(Path f,
                                    List<String> names)
                             throws IOException
```
    Overrides:
    
    getXAttrs in class FileSystem
    
    Throws:
    
    IOException
  - listXAttrs
```
public List<String> listXAttrs(Path f)
                        throws IOException
```
    Overrides:
    
    listXAttrs in class FileSystem
    
    Throws:
    
    IOException
  - removeXAttr
```
public void removeXAttr(Path f,
                        String name)
                 throws IOException
```
    Overrides:
    
    removeXAttr in class FileSystem
    
    Throws:
    
    IOException

Class HttpFSFileSystem

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.fs.FileSystem

Field Summary

Fields inherited from class org.apache.hadoop.fs.FileSystem

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.fs.FileSystem

Methods inherited from class org.apache.hadoop.conf.Configured

Methods inherited from class java.lang.Object

Field Detail

SERVICE_NAME

SERVICE_VERSION

SCHEME

OP_PARAM

DO_AS_PARAM

OVERWRITE_PARAM

REPLICATION_PARAM

BLOCKSIZE_PARAM

PERMISSION_PARAM

ACLSPEC_PARAM

DESTINATION_PARAM

RECURSIVE_PARAM

SOURCES_PARAM

OWNER_PARAM

GROUP_PARAM

MODIFICATION_TIME_PARAM

ACCESS_TIME_PARAM

XATTR_NAME_PARAM

XATTR_VALUE_PARAM

XATTR_SET_FLAG_PARAM

XATTR_ENCODING_PARAM

NEW_LENGTH_PARAM

DEFAULT_PERMISSION

ACLSPEC_DEFAULT

RENAME_JSON

TRUNCATE_JSON

DELETE_JSON

MKDIRS_JSON

HOME_DIR_JSON

SET_REPLICATION_JSON

UPLOAD_CONTENT_TYPE

FILE_STATUSES_JSON

FILE_STATUS_JSON

PATH_SUFFIX_JSON

TYPE_JSON

LENGTH_JSON

OWNER_JSON

GROUP_JSON

PERMISSION_JSON

ACCESS_TIME_JSON

MODIFICATION_TIME_JSON

BLOCK_SIZE_JSON

REPLICATION_JSON

XATTRS_JSON

XATTR_NAME_JSON

XATTR_VALUE_JSON

XATTRNAMES_JSON

FILE_CHECKSUM_JSON

CHECKSUM_ALGORITHM_JSON

CHECKSUM_BYTES_JSON

CHECKSUM_LENGTH_JSON

CONTENT_SUMMARY_JSON

CONTENT_SUMMARY_DIRECTORY_COUNT_JSON

CONTENT_SUMMARY_FILE_COUNT_JSON

CONTENT_SUMMARY_LENGTH_JSON

CONTENT_SUMMARY_QUOTA_JSON

CONTENT_SUMMARY_SPACE_CONSUMED_JSON

CONTENT_SUMMARY_SPACE_QUOTA_JSON

ACL_STATUS_JSON

ACL_STICKY_BIT_JSON

ACL_ENTRIES_JSON

ACL_BIT_JSON

HTTP_TEMPORARY_REDIRECT

Constructor Detail

HttpFSFileSystem

Method Detail

initialize

getScheme

getUri