enrichment queries set is now splitted on workflow node side, because of timeout error on very large collection

dnet-ariadneplus/src/main/java/eu/dnetlib/ariadneplus/workflows/nodes/EnrichGraphDBContentJobNode.java

@@ -1,5 +1,6 @@
 package eu.dnetlib.ariadneplus.workflows.nodes;
 
+import com.google.common.base.Splitter;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.gson.Gson;
@@ -12,6 +13,7 @@ import eu.dnetlib.msro.workflows.util.ResultsetProgressProvider;
 import eu.dnetlib.msro.workflows.util.WorkflowsConstants;
 import eu.dnetlib.rmi.common.ResultSet;
 import eu.dnetlib.rmi.manager.MSROException;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.http.NameValuePair;
@@ -44,59 +46,47 @@ public class EnrichGraphDBContentJobNode extends AsyncJobNode {
 	private String datasource;
 
 	//for parallel requests to the publisher endpoint
-	private int nThreads = 5;
+	private int nThreads = 1;
 
 	@Override
 	protected String execute(final Env env) throws Exception {
 
 		int statusCode = -1;
-		String enrichResult = "noResult";
-		log.info("Publisher endpoint: " + getPublisherEndpoint());
-		log.info("Enrich Query Value: " + getSparqlUpdateQuery());
+		String enrichResult = "";
 		PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
 		cm.setMaxTotal(nThreads);
 		CloseableHttpClient client = HttpClients.custom().setConnectionManager(cm).build();
-		
 		log.info("Enrich endpoint: " + getEnrichEndpoint());
 		CloseableHttpResponse responsePOST = null;
-		try {
-			HttpPost post = new HttpPost(getEnrichEndpoint());
-			List<NameValuePair> params = Lists.newArrayList();
-			String datasourceInterfaceValue = getDatasourceInterface();
-			StringEntity entity = new StringEntity(getSparqlUpdateQuery());
-			post.setEntity(entity);
-			responsePOST = client.execute(post);
-			statusCode = responsePOST.getStatusLine().getStatusCode();
-			switch (statusCode) {
-			case 200:
-				log.info("enrich graphDB content completed");
-				break;
-			default:
-				log.error("error enriching graphDB  " + responsePOST.getStatusLine().getStatusCode() + ": " + responsePOST.getStatusLine().getReasonPhrase());
-				break;
+		String queryValue = getSparqlUpdateQuery();
+		int countQueries = 0;
+		int countSuccess = 0;
+		String endpoint = getEnrichEndpoint();
+		for(String query : Splitter.on(";").split(queryValue)){
+			if (StringUtils.isNoneBlank(query)) {
+				countQueries++;
+				HttpPost post = new HttpPost(endpoint);
+				StringEntity entity = new StringEntity(query);
+				post.setEntity(entity);
+				responsePOST = client.execute(post);
+				statusCode = responsePOST.getStatusLine().getStatusCode();
+				switch (statusCode) {
+					case 200:
+						log.info(String.format("Query %d executed: %s", countQueries, query));
+						break;
+					default:
+						log.error("error enriching graphDB  " + responsePOST.getStatusLine().getStatusCode() + ": " + responsePOST.getStatusLine().getReasonPhrase());
+						throw new MSROException(String.format("Cannot execute sparql from %s", query));
+				}
+				countSuccess++;
 			}
-		} catch (ConnectException ce) {
-			log.error(ce);
-			throw new MSROException("Unable to connect to Publisher endpoint" + getEnrichEndpoint());
 		}
-		catch (IOException e) {
-			log.error(e);
-			throw new MSROException("IO Error" + getEnrichEndpoint());
-		}
-		finally{
-			if(responsePOST != null) responsePOST.close();
-			client.close();
-			cm.shutdown();
-		}
-
-		env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "statusCode", Integer.toString(statusCode));
-		env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "enrichResult", enrichResult);
-
+		enrichResult = String.format("Queries committed with success %d/%d", countSuccess, countQueries);
 		log.info(enrichResult);
-		if (statusCode!=200) {
-			throw new MSROException("Error from Publisher endpoint [ status code: " + statusCode + " ]");
-		}
-
+		if(responsePOST != null) responsePOST.close();
+		client.close();
+		cm.shutdown();
+		env.setAttribute(WorkflowsConstants.MAIN_LOG_PREFIX + "enrichResult", enrichResult);
 		return Arc.DEFAULT_ARC;
 	}