org.apache.sshd.sftp.server

Class Handle

java.lang.Object

org.apache.sshd.sftp.server.Handle

All Implemented Interfaces:

Closeable, AutoCloseable, Channel, AttributeRepository, AttributeStore

Direct Known Subclasses:

DirectoryHandle, FileHandle

public abstract class Handle
extends Object
implements Channel, AttributeStore

Author:

Apache MINA SSHD Project

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.sshd.common.AttributeRepository

AttributeRepository.AttributeKey<T>

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Handle(SftpSubsystem subsystem, Path file, String handle)

Method Summary

Modifier and Type	Method and Description
Collection<AttributeRepository.AttributeKey<?>>	attributeKeys()
void	clearAttributes()
void	close()
<T> T	computeAttributeIfAbsent(AttributeRepository.AttributeKey<T> key, Function<? super AttributeRepository.AttributeKey<T>,? extends T> resolver)
<T> T	getAttribute(AttributeRepository.AttributeKey<T> key)
int	getAttributesCount()
Path	getFile()
String	getFileHandle() Retrieves the raw opaque file handle, which may contain characters not safe for printing.
protected SftpSubsystem	getSubsystem()
boolean	isOpen()
<T> T	removeAttribute(AttributeRepository.AttributeKey<T> key)
protected static String	safe(String handle) Converts a file handle, which may contain non-printable characters, to a hex representation of its bytes, which is safe to write to logs or exception messages.
<T> T	setAttribute(AttributeRepository.AttributeKey<T> key, T value)
protected void	signalHandleOpen()
protected void	signalHandleOpening()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.sshd.common.AttributeRepository

ofAttributesMap, ofKeyValuePair, resolveAttribute

Constructor Detail

Handle

protected Handle(SftpSubsystem subsystem,
                 Path file,
                 String handle)

Method Detail

getSubsystem

protected SftpSubsystem getSubsystem()

signalHandleOpening

protected void signalHandleOpening()
                            throws IOException

Throws:

IOException

signalHandleOpen

protected void signalHandleOpen()
                         throws IOException

Throws:

IOException

getFile

public Path getFile()

getFileHandle

public String getFileHandle()

Retrieves the raw opaque file handle, which may contain characters not safe for printing.

Returns:

the raw file handle

getAttributesCount

public int getAttributesCount()

Specified by:

getAttributesCount in interface AttributeRepository

getAttribute

public <T> T getAttribute(AttributeRepository.AttributeKey<T> key)

Specified by:

getAttribute in interface AttributeRepository

attributeKeys

public Collection<AttributeRepository.AttributeKey<?>> attributeKeys()

Specified by:

attributeKeys in interface AttributeRepository

computeAttributeIfAbsent

public <T> T computeAttributeIfAbsent(AttributeRepository.AttributeKey<T> key,
                                      Function<? super AttributeRepository.AttributeKey<T>,? extends T> resolver)

Specified by:

computeAttributeIfAbsent in interface AttributeStore

setAttribute

public <T> T setAttribute(AttributeRepository.AttributeKey<T> key,
                          T value)

Specified by:

setAttribute in interface AttributeStore

removeAttribute

public <T> T removeAttribute(AttributeRepository.AttributeKey<T> key)

Specified by:

removeAttribute in interface AttributeStore

clearAttributes

public void clearAttributes()

Specified by:

clearAttributes in interface AttributeStore

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

safe

protected static String safe(String handle)

Converts a file handle, which may contain non-printable characters, to a hex representation of its bytes, which is safe to write to logs or exception messages.

For historical reasons, Apache MINA sshd represents file handles as strings internally.

Parameters:

handle - to convert

Returns:

the printable handle string