org.apache.nutch.protocol.ftp
Class Ftp

java.lang.Object
  org.apache.nutch.protocol.ftp.Ftp

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, Pluggable, Protocol

public class Ftp
extends Object
implements Protocol

Ftp.java deals with ftp: scheme. Configurable parameters are defined under "FTP properties" section in ./conf/nutch-default.xml or similar.

Author:

John Xing

Field Summary

static org.apache.commons.logging.Log

LOG

Fields inherited from interface org.apache.nutch.protocol.Protocol

CHECK_BLOCKING, CHECK_ROBOTS, X_POINT_ID

Constructor Summary

Ftp()

Method Summary

protected void	finalize()
org.apache.hadoop.conf.Configuration	getConf()
ProtocolOutput	getProtocolOutput(org.apache.hadoop.io.Text url, CrawlDatum datum) Returns the Content for a fetchlist entry.
RobotRules	getRobotRules(org.apache.hadoop.io.Text url, CrawlDatum datum) Retrieve robot rules applicable for this url.
static void	main(String[] args) For debugging.
void	setConf(org.apache.hadoop.conf.Configuration conf)
void	setFollowTalk(boolean followTalk) Set followTalk
void	setKeepConnection(boolean keepConnection) Set keepConnection
void	setMaxContentLength(int length) Set the point at which content is truncated.
void	setTimeout(int to) Set the timeout.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

Ftp

public Ftp()

Method Detail

setTimeout

public void setTimeout(int to)

Set the timeout.

setMaxContentLength

public void setMaxContentLength(int length)

Set the point at which content is truncated.

setFollowTalk

public void setFollowTalk(boolean followTalk)

Set followTalk

setKeepConnection

public void setKeepConnection(boolean keepConnection)

Set keepConnection

getProtocolOutput

public ProtocolOutput getProtocolOutput(org.apache.hadoop.io.Text url,
                                        CrawlDatum datum)

Description copied from interface: Protocol

Returns the Content for a fetchlist entry.

Specified by:

getProtocolOutput in interface Protocol

finalize

protected void finalize()

Overrides:

finalize in class Object

main

public static void main(String[] args)
                 throws Exception

For debugging.

Throws:

Exception

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

getRobotRules

public RobotRules getRobotRules(org.apache.hadoop.io.Text url,
                                CrawlDatum datum)

Description copied from interface: Protocol

Retrieve robot rules applicable for this url.

Specified by:

getRobotRules in interface Protocol

Parameters:

url - url to check

datum - page datum

Returns:

robot rules (specific for this url or default), never null