org.apache.hadoop.chukwa.hicc.rest

Class CirclesController

java.lang.Object

org.apache.hadoop.chukwa.hicc.rest.CirclesController

public class CirclesController
extends Object

Constructor Summary

Constructors

Constructor and Description
CirclesController()

Method Summary

Modifier and Type	Method and Description
String	draw(String id, boolean invert) Render circle using jquery circliful.js
String	preview(String buffer) Preview circle graph with a set of chart configuration
String	previewSeries(javax.servlet.http.HttpServletRequest request, String buffer) Circle graph data can be calculated based on either a ratio of two metrics or the selected metric is a percentage metric for rendering circle graph.

Methods inherited from class java.lang.Object

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

Constructor Detail

CirclesController

public CirclesController()

Method Detail

draw

public String draw(String id,
                   boolean invert)

Render circle using jquery circliful.js

Parameters:

id - Title of the tile.

invert - Toggle to display warning, error color by upper bound or lower bound.

Returns:

html circle widget.

response.representation.200.doc

Render circleful chart

response.representation.200.mediaType

text/html

response.representation.200.example

Example is availabe on HICC UI

preview

public String preview(String buffer)

Preview circle graph with a set of chart configuration

Parameters:

buffer - is chart object

Returns:

html text of circle graph

request.representation.example

Examples.NAMENODE_MEMORY

previewSeries

public String previewSeries(@Context
                            javax.servlet.http.HttpServletRequest request,
                            String buffer)

Circle graph data can be calculated based on either a ratio of two metrics or the selected metric is a percentage metric for rendering circle graph.

Parameters:

request - is HTTP request object

buffer - is list of SeriesMetaData for fetching series data

Returns:

JSON output series data

response.representation.200.doc

Display series data in JSON

response.representation.200.mediaType

application/json

request.representation.example

Examples.HDFS_USAGE_SERIES_METADATA