dnet-hadoop/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/usagestats/SparkAtomicActionUsageJob.java

278 lines
9.5 KiB
Java

package eu.dnetlib.dhp.actionmanager.usagestats;
import static eu.dnetlib.dhp.actionmanager.Constants.*;
import static eu.dnetlib.dhp.common.SparkSessionSupport.runWithSparkHiveSession;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
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.FilterFunction;
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;
import org.apache.spark.sql.SparkSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.databind.ObjectMapper;
import eu.dnetlib.dhp.application.ArgumentApplicationParser;
import eu.dnetlib.dhp.common.HdfsSupport;
import eu.dnetlib.dhp.schema.action.AtomicAction;
import eu.dnetlib.dhp.schema.common.ModelConstants;
import eu.dnetlib.dhp.schema.oaf.*;
import eu.dnetlib.dhp.schema.oaf.utils.OafMapperUtils;
import scala.Tuple2;
/**
* created the Atomic Action for each type of results
*/
public class SparkAtomicActionUsageJob implements Serializable {
private static final Logger log = LoggerFactory.getLogger(SparkAtomicActionUsageJob.class);
private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
public static <I extends Result> void main(String[] args) throws Exception {
String jsonConfiguration = IOUtils
.toString(
SparkAtomicActionUsageJob.class
.getResourceAsStream(
"/eu/dnetlib/dhp/actionmanager/usagestats/input_actionset_parameter.json"));
final ArgumentApplicationParser parser = new ArgumentApplicationParser(jsonConfiguration);
parser.parseArgument(args);
Boolean isSparkSessionManaged = Optional
.ofNullable(parser.get("isSparkSessionManaged"))
.map(Boolean::valueOf)
.orElse(Boolean.TRUE);
log.info("isSparkSessionManaged: {}", isSparkSessionManaged);
final String outputPath = parser.get("outputPath");
log.info("outputPath {}: ", outputPath);
SparkConf conf = new SparkConf();
conf.set("hive.metastore.uris", parser.get("hive_metastore_uris"));
final String dbname = parser.get("usagestatsdb");
final String workingPath = parser.get("workingPath");
final String datasourcePath = parser.get("datasourcePath");
runWithSparkHiveSession(
conf,
isSparkSessionManaged,
spark -> {
removeOutputDir(spark, outputPath);
prepareResultData(
dbname, spark, workingPath + "/usageDb",
"usage_stats",
"result_id",
"repository_id",
datasourcePath);
prepareData(dbname, spark, workingPath + "/projectDb", "project_stats", "id");
prepareData(dbname, spark, workingPath + "/datasourceDb", "datasource_stats", "repository_id");
writeActionSet(spark, workingPath, outputPath);
});
}
private static void prepareResultData(String dbname, SparkSession spark, String workingPath, String tableName,
String resultAttributeName, String datasourceAttributeName,
String datasourcePath) {
Dataset<UsageStatsResultModel> resultModel = spark
.sql(
String
.format(
"select %s as id, %s as datasourceId, sum(downloads) as downloads, sum(views) as views " +
"from %s.%s group by %s, %s",
resultAttributeName, datasourceAttributeName, dbname, tableName, resultAttributeName,
datasourceAttributeName))
.as(Encoders.bean(UsageStatsResultModel.class));
Dataset<Datasource> datasource = readPath(spark, datasourcePath, Datasource.class)
.filter((FilterFunction<Datasource>) d -> !d.getDataInfo().getDeletedbyinference())
.map((MapFunction<Datasource, Datasource>) d -> {
d.setId(d.getId().substring(3));
return d;
}, Encoders.bean(Datasource.class));
resultModel
.joinWith(datasource, resultModel.col("datasourceId").equalTo(datasource.col("id")), "left")
.map((MapFunction<Tuple2<UsageStatsResultModel, Datasource>, UsageStatsResultModel>) t2 -> {
UsageStatsResultModel usrm = t2._1();
if (Optional.ofNullable(t2._2()).isPresent())
usrm.setDatasourceId(usrm.getDatasourceId() + "||" + t2._2().getOfficialname().getValue());
else
usrm.setDatasourceId(usrm.getDatasourceId() + "||NO_MATCH_FOUND");
return usrm;
}, Encoders.bean(UsageStatsResultModel.class))
.write()
.mode(SaveMode.Overwrite)
.option("compression", "gzip")
.json(workingPath);
}
private static void prepareData(String dbname, SparkSession spark, String workingPath, String tableName,
String attribute_name) {
spark
.sql(
String
.format(
"select %s as id, sum(downloads) as downloads, sum(views) as views " +
"from %s.%s group by %s",
attribute_name, dbname, tableName, attribute_name))
.as(Encoders.bean(UsageStatsModel.class))
.write()
.mode(SaveMode.Overwrite)
.option("compression", "gzip")
.json(workingPath);
}
public static void writeActionSet(SparkSession spark, String inputPath, String outputPath) {
getFinalIndicatorsResult(spark, inputPath + "/usageDb")
.toJavaRDD()
.map(p -> new AtomicAction(p.getClass(), p))
.union(
getFinalIndicatorsProject(spark, inputPath + "/projectDb")
.toJavaRDD()
.map(p -> new AtomicAction(p.getClass(), p)))
.union(
getFinalIndicatorsDatasource(spark, inputPath + "/datasourceDb")
.toJavaRDD()
.map(p -> new AtomicAction(p.getClass(), p)))
.mapToPair(
aa -> new Tuple2<>(new Text(aa.getClazz().getCanonicalName()),
new Text(OBJECT_MAPPER.writeValueAsString(aa))))
.saveAsHadoopFile(outputPath, Text.class, Text.class, SequenceFileOutputFormat.class);
}
public static Measure newMeasureInstance(String id) {
Measure m = new Measure();
m.setId(id);
m.setUnit(new ArrayList<>());
return m;
}
private static Dataset<Result> getFinalIndicatorsResult(SparkSession spark, String inputPath) {
return readPath(spark, inputPath, UsageStatsResultModel.class)
.groupByKey((MapFunction<UsageStatsResultModel, String>) usm -> usm.getId(), Encoders.STRING())
.mapGroups((MapGroupsFunction<String, UsageStatsResultModel, Result>) (k, it) -> {
Result r = new Result();
r.setId("50|" + k);
// id = download or view and unit = list of key value pairs
Measure download = newMeasureInstance("downloads");
Measure view = newMeasureInstance("views");
UsageStatsResultModel first = it.next();
addCountForDatasource(download, first, view);
it.forEachRemaining(usm -> {
addCountForDatasource(download, usm, view);
});
r.setMeasures(Arrays.asList(download, view));
return r;
}, Encoders.bean(Result.class))
// .map((MapFunction<UsageStatsResultModel, Result>) usm -> {
// Result r = new Result();
// r.setId("50|" + usm.getId());
// r.setMeasures(getMeasure(usm.getDownloads(), usm.getViews()));
// return r;
// }, Encoders.bean(Result.class));
;
}
private static void addCountForDatasource(Measure download, UsageStatsResultModel usm, Measure view) {
DataInfo dataInfo = OafMapperUtils
.dataInfo(
false,
UPDATE_DATA_INFO_TYPE,
true,
false,
OafMapperUtils
.qualifier(
UPDATE_MEASURE_USAGE_COUNTS_CLASS_ID,
UPDATE_CLASS_NAME,
ModelConstants.DNET_PROVENANCE_ACTIONS,
ModelConstants.DNET_PROVENANCE_ACTIONS),
"");
download
.getUnit()
.add(
OafMapperUtils
.newKeyValueInstance(usm.getDatasourceId(), String.valueOf(usm.getDownloads()), dataInfo));
view
.getUnit()
.add(OafMapperUtils.newKeyValueInstance(usm.getDatasourceId(), String.valueOf(usm.getViews()), dataInfo));
}
private static Dataset<Project> getFinalIndicatorsProject(SparkSession spark, String inputPath) {
return readPath(spark, inputPath, UsageStatsModel.class)
.map((MapFunction<UsageStatsModel, Project>) usm -> {
Project p = new Project();
p.setId("40|" + usm.getId());
p.setMeasures(getMeasure(usm.getDownloads(), usm.getViews()));
return p;
}, Encoders.bean(Project.class));
}
private static Dataset<Datasource> getFinalIndicatorsDatasource(SparkSession spark, String inputPath) {
return readPath(spark, inputPath, UsageStatsModel.class)
.map((MapFunction<UsageStatsModel, Datasource>) usm -> {
Datasource d = new Datasource();
d.setId("10|" + usm.getId());
d.setMeasures(getMeasure(usm.getDownloads(), usm.getViews()));
return d;
}, Encoders.bean(Datasource.class));
}
private static List<Measure> getMeasure(Long downloads, Long views) {
DataInfo dataInfo = OafMapperUtils
.dataInfo(
false,
UPDATE_DATA_INFO_TYPE,
true,
false,
OafMapperUtils
.qualifier(
UPDATE_MEASURE_USAGE_COUNTS_CLASS_ID,
UPDATE_CLASS_NAME,
ModelConstants.DNET_PROVENANCE_ACTIONS,
ModelConstants.DNET_PROVENANCE_ACTIONS),
"");
return Arrays
.asList(
OafMapperUtils
.newMeasureInstance("downloads", String.valueOf(downloads), UPDATE_KEY_USAGE_COUNTS, dataInfo),
OafMapperUtils.newMeasureInstance("views", String.valueOf(views), UPDATE_KEY_USAGE_COUNTS, dataInfo));
}
private static void removeOutputDir(SparkSession spark, String path) {
HdfsSupport.remove(path, spark.sparkContext().hadoopConfiguration());
}
public static <R> Dataset<R> readPath(
SparkSession spark, String inputPath, Class<R> clazz) {
return spark
.read()
.textFile(inputPath)
.map((MapFunction<String, R>) value -> OBJECT_MAPPER.readValue(value, clazz), Encoders.bean(clazz));
}
}