org.apache.beam.examples.complete.game

Class GameStats.CalculateSpammyUsers

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>>

org.apache.beam.examples.complete.game.GameStats.CalculateSpammyUsers

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

GameStats

public static class GameStats.CalculateSpammyUsers
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>>

Filter out all users but those with a high clickrate, which we will consider as 'spammy' users. We do this by finding the mean total score per user, then using that information as a side input to filter out all but those user scores that are larger than (mean * SCORE_WEIGHT).

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

name, resourceHints

Constructor Summary

Constructors

Constructor and Description
CalculateSpammyUsers()

Method Summary

Modifier and Type	Method and Description
org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>	expand(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>> userScores)

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

compose, compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setResourceHints, toString, validate, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

CalculateSpammyUsers

public CalculateSpammyUsers()

Method Detail

expand

public org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>> expand(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>> userScores)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.String,java.lang.Integer>>>