Package org.apache.solr.ltr

Class CSVFeatureLogger

java.lang.Object

org.apache.solr.ltr.FeatureLogger

org.apache.solr.ltr.CSVFeatureLogger

public class CSVFeatureLogger
extends FeatureLogger

A feature logger that logs in csv format.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.ltr.FeatureLogger

FeatureLogger.FeatureFormat

Field Summary

Fields

Modifier and Type	Field	Description
static char	DEFAULT_FEATURE_SEPARATOR
static char	DEFAULT_KEY_VALUE_SEPARATOR

Fields inherited from class org.apache.solr.ltr.FeatureLogger

featureFormat

Constructor Summary

Constructors

Constructor	Description
CSVFeatureLogger(String fvCacheName, FeatureLogger.FeatureFormat f)
CSVFeatureLogger(String fvCacheName, FeatureLogger.FeatureFormat f, char keyValueSep, char featureSep)

Method Summary

Modifier and Type	Method	Description
String	makeFeatureVector(LTRScoringQuery.FeatureInfo[] featuresInfo)

Methods inherited from class org.apache.solr.ltr.FeatureLogger

getFeatureVector, log

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_KEY_VALUE_SEPARATOR

public static final char DEFAULT_KEY_VALUE_SEPARATOR

See Also:

Constant Field Values

DEFAULT_FEATURE_SEPARATOR

public static final char DEFAULT_FEATURE_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

CSVFeatureLogger

public CSVFeatureLogger(String fvCacheName,
                        FeatureLogger.FeatureFormat f)

CSVFeatureLogger

public CSVFeatureLogger(String fvCacheName,
                        FeatureLogger.FeatureFormat f,
                        char keyValueSep,
                        char featureSep)

Method Detail

makeFeatureVector

public String makeFeatureVector(LTRScoringQuery.FeatureInfo[] featuresInfo)

Specified by:

makeFeatureVector in class FeatureLogger