From 69ca7eaade82fcd460b53afb82bd6152de382003 Mon Sep 17 00:00:00 2001
From: Alessia Bardi <alessia.bardi@isti.cnr.it>
Date: Fri, 7 Aug 2020 12:44:36 +0200
Subject: [PATCH] removed redundand lines of code

---
 .../dnetlib/ariadneplus/graphdb/GraphDBClient.java   | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/graphdb/GraphDBClient.java b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/graphdb/GraphDBClient.java
index 40312b4..460317e 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/graphdb/GraphDBClient.java
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/graphdb/GraphDBClient.java
@@ -46,7 +46,6 @@ public class GraphDBClient {
 	private static final Log log = LogFactory.getLog(GraphDBClient.class);
 
 	public static final String PROVENANCE_NS = "http://www.d-net.research-infrastructures.eu/provenance/";
-	public static final int NUM_RECORDS_THRESHOLD = 10;
 
 	@Autowired
 	private RunSPARQLQueryService runSPQRLQuery;
@@ -95,7 +94,6 @@ public class GraphDBClient {
 				con.add(IOUtils.toInputStream(getRDFBlock(record), "UTF-8"), recordURI, RDFFormat.RDFXML, graph);
 			    con.commit();
 //				log.debug("statement added");
-				con.close();
 				}
 				catch (RDF4JException e) {
 				   log.error("error adding statement ...", e);
@@ -260,12 +258,11 @@ public class GraphDBClient {
 
 	public String  updateSparql(final String queryValue) throws AriadnePlusPublisherException{
 		try {
-			String result = new String("");
+			String result= "";
 			RemoteRepositoryManager manager = new RemoteRepositoryManager(this.graphDBServerUrl);
 			manager.init();
 			manager.setUsernameAndPassword(getWriterUser(), getWriterPwd());
 			Repository repository = manager.getRepository(getRepository());
-			ValueFactory factory = repository.getValueFactory();
 			try (RepositoryConnection con = repository.getConnection()) {
 				con.begin();
 
@@ -281,7 +278,6 @@ public class GraphDBClient {
 				log.debug("query result: "+result);
 				con.commit();
 				log.debug("query executed");
-				con.close();
 			}
 			catch (RDF4JException e) {
 				log.error("error executing query ...", e);
@@ -297,7 +293,7 @@ public class GraphDBClient {
 
 	public String  feedFromURL(final String dataUrl, final String context) throws AriadnePlusPublisherException{
 		try {
-			String result = new String("");
+			String result = "";
 			RemoteRepositoryManager manager = new RemoteRepositoryManager(this.graphDBServerUrl);
 			manager.init();
 			manager.setUsernameAndPassword(getWriterUser(), getWriterPwd());
@@ -305,13 +301,11 @@ public class GraphDBClient {
 			ValueFactory factory = repository.getValueFactory();
 			try (RepositoryConnection con = repository.getConnection()) {
 				con.begin();
-				String baseUri = null;
 				IRI contextIRI = factory.createIRI(getGraphDBBaseURI(), context);
-				con.add(new URL(dataUrl), baseUri, RDFFormat.TURTLE, contextIRI);
+				con.add(new URL(dataUrl), null, RDFFormat.TURTLE, contextIRI);
 				result.concat("data added from url: "+dataUrl+" into graph "+context);
 				con.commit();
 				log.debug("add data from Url executed");
-				con.close();
 			}
 			catch (RDF4JException e) {
 				log.error("error executing query ...", e);