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[UsageCount] changed query to make the sum be computed via sql instead of grouping

This commit is contained in:
Miriam Baglioni 2023-02-10 16:16:37 +01:00
parent f803530df6
commit 5cf902a2b0
7 changed files with 52 additions and 39 deletions
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28
dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/usagestats/SparkAtomicActionUsageJob.java
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@ -8,15 +8,13 @@ import java.io.Serializable;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import eu.dnetlib.dhp.schema.common.MainEntityType;
import eu.dnetlib.dhp.schema.oaf.*;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.SequenceFileOutputFormat;
import org.apache.spark.SparkConf;
import org.apache.spark.api.java.function.MapFunction;
import org.apache.spark.api.java.function.MapGroupsFunction;
import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.Encoders;
import org.apache.spark.sql.SaveMode;
@ -85,8 +83,9 @@ public class SparkAtomicActionUsageJob implements Serializable {
private static void prepareData(String dbname, SparkSession spark, String workingPath, String tableName, String attribute_name) {
spark
.sql(
"Select " + attribute_name + " as id, downloads, views " +
"from " + dbname + "." + tableName)
"Select " + attribute_name + " as id, sum(downloads) as downloads, sum(views) as views " +
"from " + dbname + "." + tableName +
"group by " + attribute_name)
.as(Encoders.bean(UsageStatsModel.class))
.write()
.mode(SaveMode.Overwrite)
@ -115,7 +114,7 @@ public class SparkAtomicActionUsageJob implements Serializable {
private static Dataset<Result> getFinalIndicatorsResult(SparkSession spark, String inputPath) {
return getUsageStatsModelDataset(spark, inputPath)
return readPath(spark, inputPath, UsageStatsModel.class)
.map((MapFunction<UsageStatsModel, Result>) usm -> {
Result r = new Result();
r.setId("50|" + usm.getId());
@ -126,7 +125,7 @@ public class SparkAtomicActionUsageJob implements Serializable {
private static Dataset<Project> getFinalIndicatorsProject(SparkSession spark, String inputPath) {
return getUsageStatsModelDataset(spark, inputPath)
return readPath(spark, inputPath, UsageStatsModel.class)
.map((MapFunction<UsageStatsModel, Project>) usm -> {
Project r = new Project();
r.setId("40|" + usm.getId());
@ -137,7 +136,7 @@ public class SparkAtomicActionUsageJob implements Serializable {
private static Dataset<Datasource> getFinalIndicatorsDatasource(SparkSession spark, String inputPath) {
return getUsageStatsModelDataset(spark, inputPath)
return readPath(spark, inputPath, UsageStatsModel.class)
.map((MapFunction<UsageStatsModel, Datasource>) usm -> {
Datasource r = new Datasource();
r.setId("10|" + usm.getId());
@ -146,20 +145,7 @@ public class SparkAtomicActionUsageJob implements Serializable {
}, Encoders.bean(Datasource.class));
}
private static Dataset<UsageStatsModel> getUsageStatsModelDataset(SparkSession spark, String inputPath) {
return readPath(spark, inputPath, UsageStatsModel.class)
.groupByKey((MapFunction<UsageStatsModel, String>) us -> us.getId(), Encoders.STRING())
.mapGroups((MapGroupsFunction<String, UsageStatsModel, UsageStatsModel>) (k, it) -> {
UsageStatsModel first = it.next();
it.forEachRemaining(us -> {
first.setDownloads(first.getDownloads() + us.getDownloads());
first.setViews(first.getViews() + us.getViews());
});
first.setId(k);
return first;
}, Encoders.bean(UsageStatsModel.class));
}
private static List<Measure> getMeasure(Long downloads, Long views) {
DataInfo dataInfo = OafMapperUtils

9
dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/usagestats/datasourceDb
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@ -1,12 +1,9 @@
{"id":"d1__________::53575dc69e9ace947e02d47ecd54a7a6","downloads":0,"views":4}
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12
dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/usagestats/datasourceDb_old Normal file
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@ -0,0 +1,12 @@
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dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/usagestats/projectDb
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@ -1,12 +1,9 @@
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dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/usagestats/projectDb_old Normal file
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@ -0,0 +1,12 @@
{"id":"f1__________::53575dc69e9ace947e02d47ecd54a7a6","downloads":0,"views":4}
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dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/usagestats/usageDb
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12
dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/usagestats/usageDb_old Normal file
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