org.apache.sshd.client.subsystem.sftp.extensions.helpers

Class AbstractSftpClientExtension

java.lang.Object

org.apache.sshd.common.util.logging.AbstractLoggingBean

org.apache.sshd.client.subsystem.sftp.extensions.helpers.AbstractSftpClientExtension

All Implemented Interfaces:

SftpClientExtension, RawSftpClient, NamedResource, OptionalFeature

Direct Known Subclasses:

AbstractCheckFileExtension, AbstractMD5HashExtension, AbstractOpenSSHStatCommandExtension, CopyDataExtensionImpl, CopyFileExtensionImpl, OpenSSHFsyncExtensionImpl, SpaceAvailableExtensionImpl

public abstract class AbstractSftpClientExtension
extends AbstractLoggingBean
implements SftpClientExtension, RawSftpClient

Author:

Apache MINA SSHD Project

Field Summary

Fields inherited from class org.apache.sshd.common.util.logging.AbstractLoggingBean

log

Fields inherited from interface org.apache.sshd.common.NamedResource

BY_NAME_COMPARATOR, NAME_EXTRACTOR

Fields inherited from interface org.apache.sshd.common.OptionalFeature

FALSE, TRUE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractSftpClientExtension(String name, SftpClient client, RawSftpClient raw, boolean supported)
protected	AbstractSftpClientExtension(String name, SftpClient client, RawSftpClient raw, Collection<String> extras)
protected	AbstractSftpClientExtension(String name, SftpClient client, RawSftpClient raw, Map<String,byte[]> extensions)

Method Summary

Modifier and Type	Method and Description
protected Buffer	checkExtendedReplyBuffer(Buffer buffer)
protected void	checkStatus(Buffer buffer)
SftpClient	getClient()
protected Buffer	getCommandBuffer(int extraSize)
protected Buffer	getCommandBuffer(Object target)
protected Buffer	getCommandBuffer(Object target, int extraSize)
String	getName()
boolean	isSupported()
Buffer	putTarget(Buffer buffer, Object target)
Buffer	receive(int id)
int	send(int cmd, Buffer buffer)
protected void	sendAndCheckExtendedCommandStatus(Buffer buffer)
protected int	sendExtendedCommand(Buffer buffer)
protected void	throwStatusException(int id, int substatus, String msg, String lang)

Methods inherited from class org.apache.sshd.common.util.logging.AbstractLoggingBean

getSimplifiedLogger

Methods inherited from class java.lang.Object

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

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

findByName, getNameList, getNames, removeByName

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

all, any, of

Constructor Detail

AbstractSftpClientExtension

protected AbstractSftpClientExtension(String name,
                                      SftpClient client,
                                      RawSftpClient raw,
                                      Collection<String> extras)

AbstractSftpClientExtension

protected AbstractSftpClientExtension(String name,
                                      SftpClient client,
                                      RawSftpClient raw,
                                      Map<String,byte[]> extensions)

AbstractSftpClientExtension

protected AbstractSftpClientExtension(String name,
                                      SftpClient client,
                                      RawSftpClient raw,
                                      boolean supported)

Method Detail

getName

public final String getName()

Specified by:

getName in interface NamedResource

Returns:

The resource name

getClient

public final SftpClient getClient()

Specified by:

getClient in interface SftpClientExtension

Returns:

The SftpClient used to issue the extended command

sendAndCheckExtendedCommandStatus

protected void sendAndCheckExtendedCommandStatus(Buffer buffer)
                                          throws IOException

Throws:

IOException

sendExtendedCommand

protected int sendExtendedCommand(Buffer buffer)
                           throws IOException

Throws:

IOException

send

public int send(int cmd,
                Buffer buffer)
         throws IOException

Specified by:

send in interface RawSftpClient

Parameters:

cmd - Command to send - Note: only lower 8-bits are used

buffer - The Buffer containing the command data

Returns:

The assigned request id

Throws:

IOException - if failed to send command

receive

public Buffer receive(int id)
               throws IOException

Specified by:

receive in interface RawSftpClient

Parameters:

id - The expected request id

Returns:

The received response Buffer containing the request id

Throws:

IOException - If connection closed or interrupted

isSupported

public final boolean isSupported()

Specified by:

isSupported in interface OptionalFeature

checkStatus

protected void checkStatus(Buffer buffer)
                    throws IOException

Throws:

IOException

putTarget

public Buffer putTarget(Buffer buffer,
                        Object target)

Parameters:

buffer - The Buffer

target - A target path String or SftpClient.Handle or byte[] to be encoded in the buffer

Returns:

The updated buffer

Throws:

UnsupportedOperationException - If target is not one of the above supported types

getCommandBuffer

protected Buffer getCommandBuffer(Object target)

Parameters:

target - A target path String or SftpClient.Handle or byte[] to be encoded in the buffer

Returns:

A Buffer with the extension name set

See Also:

getCommandBuffer(Object, int)

getCommandBuffer

protected Buffer getCommandBuffer(Object target,
                                  int extraSize)

Parameters:

target - A target path String or SftpClient.Handle or byte[] to be encoded in the buffer

extraSize - Extra size - beyond the path/handle to be allocated

Returns:

A Buffer with the extension name set

See Also:

getCommandBuffer(int)

getCommandBuffer

protected Buffer getCommandBuffer(int extraSize)

Parameters:

extraSize - Extra size - besides the extension name

Returns:

A Buffer with the extension name set

checkExtendedReplyBuffer

protected Buffer checkExtendedReplyBuffer(Buffer buffer)
                                   throws IOException

Parameters:

buffer - The Buffer to check

Returns:

The Buffer if this is an SftpConstants.SSH_FXP_EXTENDED_REPLY, or null if this is a SftpConstants.SSH_FXP_STATUS carrying an SftpConstants.SSH_FX_OK result

Throws:

IOException - If a non-SftpConstants.SSH_FX_OK result or not a SftpConstants.SSH_FXP_EXTENDED_REPLY buffer

throwStatusException

protected void throwStatusException(int id,
                                    int substatus,
                                    String msg,
                                    String lang)
                             throws IOException

Throws:

IOException