org.apache.hadoop.chukwa.hicc.rest

Class HeatmapController

java.lang.Object

org.apache.hadoop.chukwa.hicc.rest.HeatmapController

public class HeatmapController
extends Object

Constructor Summary

Constructors

Constructor and Description
HeatmapController()

Method Summary

Modifier and Type	Method and Description
Heatmap	getHeatmap(javax.servlet.http.HttpServletRequest request, String metricGroup, String metric, String start, String end, double max, double scale, int width, int height) Render a heatmap
String	heatmapTemplate(String metricGroup, String metric, String width, String height, String title, String yLabel) Render a heatmap from HBase series

Methods inherited from class java.lang.Object

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

Constructor Detail

HeatmapController

public HeatmapController()

Method Detail

getHeatmap

public Heatmap getHeatmap(@Context
                          javax.servlet.http.HttpServletRequest request,
                          String metricGroup,
                          String metric,
                          String start,
                          String end,
                          double max,
                          double scale,
                          int width,
                          int height)

Render a heatmap

Parameters:

request - is HTTP request object

metricGroup - is metric group name

metric - is metric name

start - is start time in yyyyMMddHHmmss format

end - is end time in yyyyMMddHHmmss format

max - is maximum possible value of the heatmap

scale - is the range of possible values

width - is width of the image

height - is height of the image

Returns:

html page of login screen

response.representation.200.doc

Login screen

response.representation.200.mediaType

text/html

response.representation.200.example

Example available in HICC UI

heatmapTemplate

public String heatmapTemplate(String metricGroup,
                              String metric,
                              String width,
                              String height,
                              String title,
                              String yLabel)

Render a heatmap from HBase series

Parameters:

metricGroup - is metric group name

metric - is metric name

width - is width of the image

height - is height of the image

title - is title of the heatmap

yLabel - is y axis label for the heatmap

Returns:

heatmap chart in html