org.apache.lens.ml.algo.spark

Class BaseSparkAlgo

java.lang.Object

org.apache.lens.ml.algo.spark.BaseSparkAlgo

All Implemented Interfaces:

MLAlgo

Direct Known Subclasses:

DecisionTreeAlgo, LogisticRegressionAlgo, NaiveBayesAlgo, SVMAlgo

public abstract class BaseSparkAlgo
extends Object
implements MLAlgo

The Class BaseSparkAlgo.

Constructor Summary

Constructors

Constructor and Description
BaseSparkAlgo(String name, String description) Instantiates a new base spark algo.

Method Summary

Modifier and Type	Method and Description
void	configure(LensConf configuration) Configure.
Map<String,String>	getArgUsage()
LensConf	getConf()
String	getDescription()
String	getName()
double	getParamValue(String param, double defaultVal) Gets the param value.
int	getParamValue(String param, int defaultVal) Gets the param value.
abstract void	parseAlgoParams(Map<String,String> params) Parses the algo params.
void	parseParams(String[] args) Parses the params.
void	setSparkContext(org.apache.spark.api.java.JavaSparkContext sparkContext)
MLModel<?>	train(LensConf conf, String db, String table, String modelId, String... params) Train.

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseSparkAlgo

public BaseSparkAlgo(String name,
                     String description)

Instantiates a new base spark algo.

Parameters:

name - the name

description - the description

Method Detail

setSparkContext

public void setSparkContext(org.apache.spark.api.java.JavaSparkContext sparkContext)

getConf

public LensConf getConf()

Specified by:

getConf in interface MLAlgo

configure

public void configure(LensConf configuration)

Description copied from interface: MLAlgo

Configure.

Specified by:

configure in interface MLAlgo

Parameters:

configuration - the configuration

train

public MLModel<?> train(LensConf conf,
                        String db,
                        String table,
                        String modelId,
                        String... params)
                 throws LensException

Description copied from interface: MLAlgo

Train.

Specified by:

train in interface MLAlgo

Parameters:

conf - the conf

db - the db

table - the table

modelId - the model id

params - the params

Returns:

the ML model

Throws:

LensException - the lens exception

parseParams

public void parseParams(String[] args)

Parses the params.

Parameters:

args - the args

getParamValue

public double getParamValue(String param,
                            double defaultVal)

Gets the param value.

Parameters:

param - the param

defaultVal - the default val

Returns:

the param value

getParamValue

public int getParamValue(String param,
                         int defaultVal)

Gets the param value.

Parameters:

param - the param

defaultVal - the default val

Returns:

the param value

getName

public String getName()

Specified by:

getName in interface MLAlgo

getDescription

public String getDescription()

Specified by:

getDescription in interface MLAlgo

getArgUsage

public Map<String,String> getArgUsage()

parseAlgoParams

public abstract void parseAlgoParams(Map<String,String> params)

Parses the algo params.

Parameters:

params - the params