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

Class MD5HandleExtensionImpl

java.lang.Object

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

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

org.apache.sshd.sftp.client.extensions.helpers.AbstractMD5HashExtension

org.apache.sshd.sftp.client.extensions.helpers.MD5HandleExtensionImpl

All Implemented Interfaces:

NamedResource, OptionalFeature, MD5HandleExtension, SftpClientExtension, RawSftpClient, SftpClientHolder

public class MD5HandleExtensionImpl
extends AbstractMD5HashExtension
implements MD5HandleExtension

Implements "md5-hash-handle" extension

Author:

Apache MINA SSHD Project

See Also:

• DRAFT 09 - section 9.1.1

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

Constructor	Description
MD5HandleExtensionImpl(SftpClient client, RawSftpClient raw, Collection<String> extra)

Method Summary

Modifier and Type	Method	Description
byte[]	getHash(SftpClient.Handle handle, long offset, long length, byte[] quickHash)

Methods inherited from class org.apache.sshd.sftp.client.extensions.helpers.AbstractMD5HashExtension

doGetHash

Methods inherited from class org.apache.sshd.sftp.client.extensions.helpers.AbstractSftpClientExtension

checkExtendedReplyBuffer, checkStatus, getClient, getCommandBuffer, getCommandBuffer, getCommandBuffer, getName, isSupported, putTarget, receive, receive, receive, send, sendAndCheckExtendedCommandStatus, sendExtendedCommand, throwStatusException, validateIncomingResponse

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

debug, debug, debug, debug, debug, error, error, error, error, error, getSimplifiedLogger, info, info, warn, warn, warn, warn, warn, warn, warn, warn

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

getName

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

isSupported

Methods inherited from interface org.apache.sshd.sftp.client.SftpClientHolder

getClient

Constructor Details

MD5HandleExtensionImpl

public MD5HandleExtensionImpl(SftpClient client,
 RawSftpClient raw,
 Collection<String> extra)

Method Details

getHash

public byte[] getHash(SftpClient.Handle handle,
 long offset,
 long length,
 byte[] quickHash)
               throws IOException

Specified by:

getHash in interface MD5HandleExtension

Parameters:

handle - The (remote) file Handle

offset - The offset to start calculating the hash

length - The number of data bytes to calculate the hash on - if greater than available, then up to whatever is available

quickHash - A quick-hash of the 1st 2048 bytes - ignored if null/empty

Returns:

The hash value if the quick hash matches (or null/empty), or null/empty if the quick hash is provided and it does not match

Throws:

IOException - If failed to calculate the hash