Package org.apache.solr.client.solrj.io.stream

Class TextLogitStream

java.lang.Object

org.apache.solr.client.solrj.io.stream.TupleStream

org.apache.solr.client.solrj.io.stream.TextLogitStream

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Expressible, org.apache.solr.common.MapSerializable, org.apache.solr.common.MapWriter, org.apache.solr.common.NavigableObject, org.noggit.JSONWriter.Writable

public class TextLogitStream
extends TupleStream
implements Expressible

Since:

6.2.0

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	TextLogitStream.LogitCall
protected static class	TextLogitStream.TermsStream

Nested classes/interfaces inherited from class org.apache.solr.client.solrj.io.stream.TupleStream

TupleStream.IgnoreException

Nested classes/interfaces inherited from interface org.apache.solr.common.MapWriter

org.apache.solr.common.MapWriter.EntryWriter

Field Summary

Fields

Modifier and Type	Field	Description
protected String	collection
protected double	error
protected ClassificationEvaluation	evaluation
protected String	field
protected List<Double>	idfs
protected int	iteration
protected int	maxIterations
protected String	name
protected String	outcome
protected Map<String,String>	params
protected int	positiveLabel
protected StreamContext	streamContext
protected TupleStream	termsStream
protected double	threshold
protected List<Double>	weights
protected String	zkHost

Fields inherited from interface org.apache.solr.common.MapWriter

EMPTY

Constructor Summary

Constructors

Constructor	Description
TextLogitStream(String zkHost, String collectionName, Map<String,String> params, String name, String field, TupleStream termsStream, List<Double> weights, String outcome, int positiveLabel, double threshold, int maxIterations)
TextLogitStream(StreamExpression expression, StreamFactory factory)	logit(collection, zkHost="", features="a,b,c,d,e,f,g", outcome="y", maxIteration="20")

Method Summary

Modifier and Type	Method	Description
List<TupleStream>	children()
void	close()
protected List<String>	getShardUrls()
StreamComparator	getStreamSort()	Return the stream sort - ie, the order in which records are returned
void	loadTerms()
void	open()	Opens the CloudSolrStream
Tuple	read()
void	setStreamContext(StreamContext context)
Explanation	toExplanation(StreamFactory factory)	Returns an explanation about the stream object
StreamExpressionParameter	toExpression(StreamFactory factory)

Methods inherited from class org.apache.solr.client.solrj.io.stream.TupleStream

getCost, getShards, getShards, getStreamNodeId, writeMap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.common.MapWriter

jsonStr, toMap, write

Methods inherited from interface org.apache.solr.common.NavigableObject

_forEachEntry, _forEachEntry, _forEachEntry, _get, _get, _getStr, _getStr, _size

Field Details

zkHost

protected String zkHost

collection

protected String collection

params

protected Map<String,String> params

field

protected String field

name

protected String name

outcome

protected String outcome

positiveLabel

protected int positiveLabel

threshold

protected double threshold

weights

protected List<Double> weights

maxIterations

protected int maxIterations

iteration

protected int iteration

error

protected double error

idfs

protected List<Double> idfs

evaluation

protected ClassificationEvaluation evaluation

streamContext

protected transient StreamContext streamContext

termsStream

protected TupleStream termsStream

Constructor Details

TextLogitStream

public TextLogitStream(String zkHost,
 String collectionName,
 Map<String,String> params,
 String name,
 String field,
 TupleStream termsStream,
 List<Double> weights,
 String outcome,
 int positiveLabel,
 double threshold,
 int maxIterations)
                throws IOException

Throws:

IOException

TextLogitStream

public TextLogitStream(StreamExpression expression,
 StreamFactory factory)
                throws IOException

logit(collection, zkHost="", features="a,b,c,d,e,f,g", outcome="y", maxIteration="20")

Throws:

IOException

Method Details

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)
                                       throws IOException

Specified by:

toExpression in interface Expressible

Throws:

IOException

setStreamContext

public void setStreamContext(StreamContext context)

Specified by:

setStreamContext in class TupleStream

open

public void open()
          throws IOException

Opens the CloudSolrStream

Specified by:

open in class TupleStream

Throws:

IOException

children

public List<TupleStream> children()

Specified by:

children in class TupleStream

getShardUrls

protected List<String> getShardUrls()
                             throws IOException

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class TupleStream

Throws:

IOException

getStreamSort

public StreamComparator getStreamSort()

Return the stream sort - ie, the order in which records are returned

Specified by:

getStreamSort in class TupleStream

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

Description copied from interface: Expressible

Returns an explanation about the stream object

Specified by:

toExplanation in interface Expressible

Specified by:

toExplanation in class TupleStream

Parameters:

factory - Stream factory for this, contains information about the function name

Returns:

Explanation about this stream object containing explanations of any child stream objects

Throws:

IOException - throw on any error

loadTerms

public void loadTerms()
               throws IOException

Throws:

IOException

read

public Tuple read()
           throws IOException

Specified by:

read in class TupleStream

Throws:

IOException