org.apache.hadoop.hbase.util
Class AbstractHBaseTool

java.lang.Object
  org.apache.hadoop.hbase.util.AbstractHBaseTool

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

@InterfaceAudience.Private
public abstract class AbstractHBaseTool
extends Object
implements org.apache.hadoop.util.Tool

Common base class used for HBase command-line tools. Simplifies workflow and command-line argument parsing.

Field Summary

protected org.apache.hadoop.conf.Configuration

conf

Constructor Summary

AbstractHBaseTool()

Method Summary

protected abstract void	addOptions() Override this to add command-line options using addOptWithArg(java.lang.String, java.lang.String) and similar methods.
protected void	addOptNoArg(String opt, String description)
protected void	addOptNoArg(String shortOpt, String longOpt, String description)
protected void	addOptWithArg(String opt, String description)
protected void	addOptWithArg(String shortOpt, String longOpt, String description)
protected void	addRequiredOptWithArg(String opt, String description)
protected void	doStaticMain(String[] args) Call this from the concrete tool class's main function.
protected abstract int	doWork() The "main function" of the tool
org.apache.hadoop.conf.Configuration	getConf()
static int	parseInt(String s, int minValue, int maxValue)
static long	parseLong(String s, long minValue, long maxValue) Parse a number and enforce a range.
protected abstract void	processOptions(org.apache.commons.cli.CommandLine cmd) This method is called to process the options after they have been parsed.
int	run(String[] args)
void	setConf(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class java.lang.Object

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

Field Detail

conf

protected org.apache.hadoop.conf.Configuration conf

Constructor Detail

AbstractHBaseTool

public AbstractHBaseTool()

Method Detail

addOptions

protected abstract void addOptions()

Override this to add command-line options using addOptWithArg(java.lang.String, java.lang.String) and similar methods.

processOptions

protected abstract void processOptions(org.apache.commons.cli.CommandLine cmd)

This method is called to process the options after they have been parsed.

doWork

protected abstract int doWork()
                       throws Exception

The "main function" of the tool

Throws:

Exception

getConf

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

Specified by:

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

setConf

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

Specified by:

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

run

public final int run(String[] args)
              throws Exception

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

Exception

addRequiredOptWithArg

protected void addRequiredOptWithArg(String opt,
                                     String description)

addOptNoArg

protected void addOptNoArg(String opt,
                           String description)

addOptNoArg

protected void addOptNoArg(String shortOpt,
                           String longOpt,
                           String description)

addOptWithArg

protected void addOptWithArg(String opt,
                             String description)

addOptWithArg

protected void addOptWithArg(String shortOpt,
                             String longOpt,
                             String description)

parseLong

public static long parseLong(String s,
                             long minValue,
                             long maxValue)

Parse a number and enforce a range.

parseInt

public static int parseInt(String s,
                           int minValue,
                           int maxValue)

doStaticMain

protected void doStaticMain(String[] args)

Call this from the concrete tool class's main function.