244 lines
7.7 KiB
Java
244 lines
7.7 KiB
Java
|
|
package eu.dnetlib.dhp.oa.provision;
|
|
|
|
import static eu.dnetlib.dhp.common.SparkSessionSupport.runWithSparkSession;
|
|
|
|
import java.io.StringReader;
|
|
import java.io.StringWriter;
|
|
import java.text.SimpleDateFormat;
|
|
import java.util.Date;
|
|
import java.util.Optional;
|
|
|
|
import javax.xml.transform.Transformer;
|
|
import javax.xml.transform.TransformerException;
|
|
import javax.xml.transform.stream.StreamResult;
|
|
import javax.xml.transform.stream.StreamSource;
|
|
|
|
import org.apache.commons.io.IOUtils;
|
|
import org.apache.commons.lang3.StringUtils;
|
|
import org.apache.hadoop.io.Text;
|
|
import org.apache.solr.common.SolrInputDocument;
|
|
import org.apache.spark.SparkConf;
|
|
import org.apache.spark.api.java.JavaRDD;
|
|
import org.apache.spark.api.java.JavaSparkContext;
|
|
import org.apache.spark.api.java.function.MapFunction;
|
|
import org.apache.spark.sql.*;
|
|
import org.slf4j.Logger;
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
import com.lucidworks.spark.util.SolrSupport;
|
|
|
|
import eu.dnetlib.dhp.application.ArgumentApplicationParser;
|
|
import eu.dnetlib.dhp.oa.provision.model.SerializableSolrInputDocument;
|
|
import eu.dnetlib.dhp.oa.provision.model.TupleWrapper;
|
|
import eu.dnetlib.dhp.oa.provision.utils.ISLookupClient;
|
|
import eu.dnetlib.dhp.oa.provision.utils.StreamingInputDocumentFactory;
|
|
import eu.dnetlib.dhp.utils.ISLookupClientFactory;
|
|
import eu.dnetlib.dhp.utils.saxon.SaxonTransformerFactory;
|
|
import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
|
|
import scala.Tuple2;
|
|
|
|
public class XmlIndexingJob {
|
|
|
|
private static final Logger log = LoggerFactory.getLogger(XmlIndexingJob.class);
|
|
|
|
public enum OutputFormat {
|
|
SOLR, HDFS
|
|
}
|
|
|
|
private static final Integer DEFAULT_BATCH_SIZE = 1000;
|
|
|
|
protected static final String DATE_FORMAT = "yyyy-MM-dd'T'hh:mm:ss'Z'";
|
|
|
|
private final String inputPath;
|
|
|
|
private final String format;
|
|
|
|
private final int batchSize;
|
|
|
|
private final OutputFormat outputFormat;
|
|
|
|
private final String outputPath;
|
|
|
|
private boolean shouldIndex;
|
|
|
|
private final SparkSession spark;
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
|
|
final ArgumentApplicationParser parser = new ArgumentApplicationParser(
|
|
IOUtils
|
|
.toString(
|
|
XmlIndexingJob.class
|
|
.getResourceAsStream(
|
|
"/eu/dnetlib/dhp/oa/provision/input_params_update_index.json")));
|
|
parser.parseArgument(args);
|
|
|
|
Boolean isSparkSessionManaged = Optional
|
|
.ofNullable(parser.get("isSparkSessionManaged"))
|
|
.map(Boolean::valueOf)
|
|
.orElse(Boolean.TRUE);
|
|
log.info("isSparkSessionManaged: {}", isSparkSessionManaged);
|
|
|
|
final String inputPath = parser.get("inputPath");
|
|
log.info("inputPath: {}", inputPath);
|
|
|
|
final String format = parser.get("format");
|
|
log.info("format: {}", format);
|
|
|
|
final String outputPath = Optional
|
|
.ofNullable(parser.get("outputPath"))
|
|
.map(StringUtils::trim)
|
|
.orElse(null);
|
|
log.info("outputPath: {}", outputPath);
|
|
|
|
final Integer batchSize = Optional
|
|
.ofNullable(parser.get("batchSize"))
|
|
.map(Integer::valueOf)
|
|
.orElse(DEFAULT_BATCH_SIZE);
|
|
log.info("batchSize: {}", batchSize);
|
|
|
|
final OutputFormat outputFormat = Optional
|
|
.ofNullable(parser.get("outputFormat"))
|
|
.map(OutputFormat::valueOf)
|
|
.orElse(OutputFormat.SOLR);
|
|
log.info("outputFormat: {}", outputFormat);
|
|
|
|
final boolean shouldIndex = Optional
|
|
.ofNullable(parser.get("shouldIndex"))
|
|
.map(Boolean::valueOf)
|
|
.orElse(false);
|
|
log.info("shouldIndex: {}", shouldIndex);
|
|
|
|
final SparkConf conf = new SparkConf();
|
|
|
|
conf.registerKryoClasses(new Class[] {
|
|
SerializableSolrInputDocument.class
|
|
});
|
|
|
|
runWithSparkSession(
|
|
conf,
|
|
isSparkSessionManaged,
|
|
spark -> {
|
|
final String isLookupUrl = parser.get("isLookupUrl");
|
|
log.info("isLookupUrl: {}", isLookupUrl);
|
|
final ISLookupClient isLookup = new ISLookupClient(ISLookupClientFactory.getLookUpService(isLookupUrl));
|
|
new XmlIndexingJob(spark, inputPath, format, batchSize, outputFormat, shouldIndex, outputPath)
|
|
.run(isLookup);
|
|
});
|
|
}
|
|
|
|
public XmlIndexingJob(SparkSession spark, String inputPath, String format, Integer batchSize,
|
|
OutputFormat outputFormat, boolean shouldIndex, String outputPath) {
|
|
this.spark = spark;
|
|
this.inputPath = inputPath;
|
|
this.format = format;
|
|
this.batchSize = batchSize;
|
|
this.outputFormat = outputFormat;
|
|
this.shouldIndex = shouldIndex;
|
|
this.outputPath = outputPath;
|
|
}
|
|
|
|
public void run(ISLookupClient isLookup) throws ISLookUpException, TransformerException {
|
|
final String fields = isLookup.getLayoutSource(format);
|
|
log.info("fields: {}", fields);
|
|
|
|
final String xslt = isLookup.getLayoutTransformer();
|
|
|
|
final String dsId = isLookup.getDsId(format);
|
|
log.info("dsId: {}", dsId);
|
|
|
|
final String zkHost = isLookup.getZkHost();
|
|
log.info("zkHost: {}", zkHost);
|
|
|
|
final String indexRecordXslt = getLayoutTransformer(format, fields, xslt);
|
|
log.info("indexRecordTransformer {}", indexRecordXslt);
|
|
|
|
final Encoder<TupleWrapper> encoder = Encoders.bean(TupleWrapper.class);
|
|
final Dataset<TupleWrapper> records = spark
|
|
.read()
|
|
.schema(encoder.schema())
|
|
.json(inputPath)
|
|
.as(encoder)
|
|
.map(
|
|
(MapFunction<TupleWrapper, TupleWrapper>) t -> new TupleWrapper(
|
|
toIndexRecord(SaxonTransformerFactory.newInstance(indexRecordXslt), t.getXml()),
|
|
t.getJson()),
|
|
Encoders.bean(TupleWrapper.class));
|
|
|
|
switch (outputFormat) {
|
|
case SOLR:
|
|
if (shouldIndex) {
|
|
final String collection = ProvisionConstants.getCollectionName(format);
|
|
|
|
// SparkSolr >= 4
|
|
// com.lucidworks.spark.BatchSizeType bt = com.lucidworks.spark.BatchSizeType.NUM_DOCS;
|
|
// SolrSupport.indexDocs(zkHost, collection, batchSize, bt, docs.rdd());
|
|
// SparkSolr < 4
|
|
JavaRDD<SolrInputDocument> docs = records
|
|
.javaRDD()
|
|
.map(
|
|
t -> new StreamingInputDocumentFactory().parseDocument(t.getXml(), t.getJson()));
|
|
SolrSupport.indexDocs(zkHost, collection, batchSize, docs.rdd());
|
|
}
|
|
break;
|
|
case HDFS:
|
|
records
|
|
.map(
|
|
(MapFunction<TupleWrapper, SerializableSolrInputDocument>) t -> {
|
|
SolrInputDocument s = new StreamingInputDocumentFactory()
|
|
.parseDocument(t.getXml(), t.getJson());
|
|
return new SerializableSolrInputDocument(s);
|
|
},
|
|
Encoders.kryo(SerializableSolrInputDocument.class))
|
|
.write()
|
|
.mode(SaveMode.Overwrite)
|
|
.parquet(outputPath);
|
|
break;
|
|
default:
|
|
throw new IllegalArgumentException("invalid outputFormat: " + outputFormat);
|
|
}
|
|
}
|
|
|
|
protected static String toIndexRecord(Transformer tr, final String xmlRecord) {
|
|
final StreamResult res = new StreamResult(new StringWriter());
|
|
try {
|
|
tr.transform(new StreamSource(new StringReader(xmlRecord)), res);
|
|
return res.getWriter().toString();
|
|
} catch (TransformerException e) {
|
|
throw new IllegalArgumentException("XPathException on record: \n" + xmlRecord, e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates the XSLT responsible for building the index xml records.
|
|
*
|
|
* @param format Metadata format name (DMF|TMF)
|
|
* @param xslt xslt for building the index record transformer
|
|
* @param fields the list of fields
|
|
* @return the javax.xml.transform.Transformer
|
|
* @throws TransformerException could happen
|
|
*/
|
|
protected static String getLayoutTransformer(String format, String fields, String xslt)
|
|
throws TransformerException {
|
|
|
|
final Transformer layoutTransformer = SaxonTransformerFactory.newInstance(xslt);
|
|
final StreamResult layoutToXsltXslt = new StreamResult(new StringWriter());
|
|
|
|
layoutTransformer.setParameter("format", format);
|
|
layoutTransformer.transform(new StreamSource(new StringReader(fields)), layoutToXsltXslt);
|
|
|
|
return layoutToXsltXslt.getWriter().toString();
|
|
}
|
|
|
|
/**
|
|
* method return a solr-compatible string representation of a date, used to mark all records as indexed today
|
|
*
|
|
* @return the parsed date
|
|
*/
|
|
public static String getRecordDatestamp() {
|
|
return new SimpleDateFormat(DATE_FORMAT).format(new Date());
|
|
}
|
|
|
|
}
|