Package org.apache.hadoop.hbase.master.http

Class RegionVisualizer

java.lang.Object

org.apache.hadoop.hbase.util.AbstractHBaseTool

org.apache.hadoop.hbase.master.http.RegionVisualizer

All Implemented Interfaces:

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

@Private
public class RegionVisualizer
extends AbstractHBaseTool

Support class for the "Region Visualizer" rendered out of src/main/resources/hbase-webapps/master/regionVisualizer.jsp

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	RegionVisualizer.ByteArraySerializer
static final class	RegionVisualizer.RegionDetails	POJO carrying detailed information about a region for use in visualizations.
private static final class	RegionVisualizer.RegionDetailsSerializer	"Flatten" the serialized representation of a RegionVisualizer.RegionDetails.
private static final class	RegionVisualizer.SizeAsBytesSerializer	Simplify representation of a Size instance by converting to bytes.

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

AbstractHBaseTool.OptionsOrderComparator

Field Summary

Fields

Modifier and Type	Field	Description
private final Admin	admin
private final AsyncAdmin	asyncAdmin
private final org.apache.hbase.thirdparty.com.google.gson.Gson	gson
private static final org.slf4j.Logger	LOG

Fields inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

cmdLineArgs, conf, EXIT_FAILURE, EXIT_SUCCESS, LONG_HELP_OPTION, options, SHORT_HELP_OPTION

Constructor Summary

Constructors

Constructor	Description
RegionVisualizer()
RegionVisualizer(Admin admin)
RegionVisualizer(AsyncAdmin asyncAdmin)

Method Summary

Modifier and Type	Method	Description
protected void	addOptions()	Override this to add command-line options using AbstractHBaseTool.addOptWithArg(java.lang.String, java.lang.String) and similar methods.
(package private) static org.apache.hbase.thirdparty.com.google.gson.Gson	buildGson()
private List<RegionVisualizer.RegionDetails>	clusterStatusToRegionDetails()
protected int	doWork()	The "main function" of the tool
private ClusterMetrics	getClusterMetrics()
static void	main(String[] argv)
protected void	processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)	This method is called to process the options after they have been parsed.
String	renderRegionDetails()

Methods inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

addOption, addOptNoArg, addOptNoArg, addOptWithArg, addOptWithArg, addRequiredOption, addRequiredOptWithArg, addRequiredOptWithArg, doStaticMain, getConf, getOptionAsDouble, getOptionAsInt, getOptionAsInt, getOptionAsLong, getOptionAsLong, newParser, parseArgs, parseInt, parseLong, printUsage, printUsage, processOldArgs, run, setConf

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

admin

private final Admin admin

asyncAdmin

private final AsyncAdmin asyncAdmin

gson

private final org.apache.hbase.thirdparty.com.google.gson.Gson gson

Constructor Details

RegionVisualizer

public RegionVisualizer()

RegionVisualizer

public RegionVisualizer(Admin admin)

RegionVisualizer

public RegionVisualizer(AsyncAdmin asyncAdmin)

Method Details

renderRegionDetails

public String renderRegionDetails()

main

public static void main(String[] argv)

buildGson

static org.apache.hbase.thirdparty.com.google.gson.Gson buildGson()

getClusterMetrics

private ClusterMetrics getClusterMetrics()
                                  throws ExecutionException,
InterruptedException,
IOException

Throws:

ExecutionException

InterruptedException

IOException

clusterStatusToRegionDetails

private List<RegionVisualizer.RegionDetails> clusterStatusToRegionDetails()

addOptions

protected void addOptions()

Description copied from class: AbstractHBaseTool

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

Specified by:

addOptions in class AbstractHBaseTool

processOptions

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

Description copied from class: AbstractHBaseTool

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

Specified by:

processOptions in class AbstractHBaseTool

doWork

protected int doWork()
              throws Exception

Description copied from class: AbstractHBaseTool

The "main function" of the tool

Specified by:

doWork in class AbstractHBaseTool

Throws:

Exception