working procedure for records indexing using Spark, via lib com.lucidworks.spark:spark-solr

dhp-common/src/main/java/eu/dnetlib/dhp/utils/saxon/PickFirst.java

@@ -1,6 +1,7 @@
 package eu.dnetlib.dhp.utils.saxon;
 
 import net.sf.saxon.expr.XPathContext;
+import net.sf.saxon.om.Item;
 import net.sf.saxon.om.Sequence;
 import net.sf.saxon.trans.XPathException;
 import net.sf.saxon.value.SequenceType;
@@ -19,15 +20,21 @@ public class PickFirst extends AbstractExtensionFunction {
         if (arguments == null | arguments.length == 0) {
             return new StringValue("");
         }
-        String s1 = arguments[0].head().getStringValue();
 
-        if (arguments.length > 1) {
-            String s2 = arguments[1].head().getStringValue();
+        final String s1 = getValue(arguments[0]);
+        final String s2 = getValue(arguments[1]);
 
-            return new StringValue(StringUtils.isNotBlank(s1) ? s1 : StringUtils.isNotBlank(s2) ? s2 : "");
-        } else {
-            return new StringValue(StringUtils.isNotBlank(s1) ? s1 : "");
+        return new StringValue(StringUtils.isNotBlank(s1) ? s1 : StringUtils.isNotBlank(s2) ? s2 : "");
+    }
+
+    private String getValue(final Sequence arg) throws XPathException {
+        if (arg != null) {
+            final Item item = arg.head();
+            if (item != null) {
+                return item.getStringValue();
+            }
         }
+        return "";
     }
 
     @Override

dhp-workflows/dhp-graph-provision/job-override.properties

@@ -5,7 +5,6 @@ isLookupUrl=http://beta.services.openaire.eu:8280/is/services/isLookUp?wsdl
 sourcePath=/tmp/db_openaireplus_services.export_dhp.2020.02.03
 outputPath=/tmp/openaire_provision
 format=TMF
-batchSize=1000
-sparkExecutorCoresForIndexing=1
-sparkExecutorInstances=10
-reuseRecords=false
+batchSize=2000
+sparkExecutorCoresForIndexing=64
+reuseRecords=true

dhp-workflows/dhp-graph-provision/pom.xml

@@ -3,7 +3,7 @@
     <parent>
         <artifactId>dhp-workflows</artifactId>
         <groupId>eu.dnetlib.dhp</groupId>
-        <version>1.0.5-SNAPSHOT</version>
+        <version>1.1.6-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -52,6 +52,11 @@
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpmime</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>org.noggit</groupId>
             <artifactId>noggit</artifactId>

dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/graph/SparkXmlIndexingJob.java

@@ -45,7 +45,7 @@ public class SparkXmlIndexingJob {
         final String inputPath = parser.get("sourcePath");
         final String isLookupUrl = parser.get("isLookupUrl");
         final String format = parser.get("format");
-        final Integer batchSize = parser.getObjectMap().containsKey("batckSize") ? Integer.valueOf(parser.get("batchSize")) : DEFAULT_BATCH_SIZE;
+        final Integer batchSize = parser.getObjectMap().containsKey("batchSize") ? Integer.valueOf(parser.get("batchSize")) : DEFAULT_BATCH_SIZE;
 
         final ISLookUpService isLookup = ISLookupClientFactory.getLookUpService(isLookupUrl);
         final String fields = getLayoutSource(isLookup, format);

dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/graph/utils/XmlRecordFactory.java

@@ -129,6 +129,9 @@ public class XmlRecordFactory implements Serializable {
                     .map(t -> mapStructuredProperty("title", t))
                     .collect(Collectors.toList()));
             }
+            if (r.getBestaccessright() != null) {
+                metadata.add(mapQualifier("bestaccessright", r.getBestaccessright()));
+            }
             if (r.getAuthor() != null) {
                 metadata.addAll(r.getAuthor()
                     .stream()
@@ -230,15 +233,6 @@ public class XmlRecordFactory implements Serializable {
             if (r.getResourcetype() != null) {
                 metadata.add(mapQualifier("resourcetype", r.getResourcetype()));
             }
-            if (r.getRefereed() != null) {
-                metadata.add(asXmlElement("refereed", r.getRefereed().getValue()));
-            }
-            if (r.getProcessingchargeamount() != null) {
-                metadata.add(asXmlElement("processingchargeamount", r.getProcessingchargeamount().getValue()));
-            }
-            if (r.getProcessingchargecurrency() != null) {
-                metadata.add(asXmlElement("processingchargecurrency", r.getProcessingchargecurrency().getValue()));
-            }
 
             metadata.add(mapQualifier("bestaccessright", getBestAccessright(r)));
 
@@ -544,9 +538,6 @@ public class XmlRecordFactory implements Serializable {
                 if (p.getDuration() != null) {
                     metadata.add(asXmlElement("duration", p.getDuration().getValue()));
                 }
-                if (p.getEcsc39() != null) {
-                    metadata.add(asXmlElement("ecsc39", p.getEcsc39().getValue()));
-                }
                 if (p.getEcarticle29_3() != null) {
                     metadata.add(asXmlElement("ecarticle29_3", p.getEcarticle29_3().getValue()));
                 }
@@ -759,6 +750,15 @@ public class XmlRecordFactory implements Serializable {
                     if (isNotBlank(instance.getDistributionlocation())) {
                         fields.add(asXmlElement("distributionlocation", instance.getDistributionlocation()));
                     }
+                    if (instance.getRefereed() != null && isNotBlank(instance.getRefereed().getValue())) {
+                        fields.add(asXmlElement("refereed", instance.getRefereed().getValue()));
+                    }
+                    if (instance.getProcessingchargeamount() != null && isNotBlank(instance.getProcessingchargeamount().getValue())) {
+                        fields.add(asXmlElement("processingchargeamount", instance.getProcessingchargeamount().getValue()));
+                    }
+                    if (instance.getProcessingchargecurrency() != null && isNotBlank(instance.getProcessingchargecurrency().getValue())) {
+                        fields.add(asXmlElement("processingchargecurrency", instance.getProcessingchargecurrency().getValue()));
+                    }
 
                     children.add(templateFactory.getInstance(instance.getHostedby().getKey(), fields, instance.getUrl()));
                 }

dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/graph/oozie_app/workflow.xml

@@ -78,9 +78,8 @@
             <jar>dhp-graph-provision-${projectVersion}.jar</jar>
             <spark-opts>
                 --executor-memory ${sparkExecutorMemory}
-                --executor-cores ${sparkExecutorCoresForIndexing}
                 --driver-memory=${sparkDriverMemory}
-                --conf spark.executor.instances=${sparkExecutorInstances}
+                --conf spark.dynamicAllocation.maxExecutors=${sparkExecutorCoresForIndexing}
                 --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener"
                 --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener"
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}

dhp-workflows/pom.xml

@@ -18,6 +18,7 @@
         <module>dhp-distcp</module>
         <module>dhp-graph-mapper</module>
         <module>dhp-dedup</module>
+        <module>dhp-graph-provision</module>
     </modules>
 
     <pluginRepositories>

pom.xml

@@ -210,6 +210,11 @@
                 <artifactId>httpclient</artifactId>
                 <version>4.5.3</version>
             </dependency>
+            <dependency>
+                <groupId>org.apache.httpcomponents</groupId>
+                <artifactId>httpmime</artifactId>
+                <version>4.5.3</version>
+            </dependency>
             <dependency>
                 <groupId>org.noggit</groupId>
                 <artifactId>noggit</artifactId>