fix: jackson + slf4j updates

backend/pom.xml

@@ -291,7 +291,7 @@
     <dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-math3</artifactId>
-      <version>3.2</version>
+      <version>3.6.1</version>
     </dependency>
   </dependencies>
   <repositories>

backend/src/main/java/sparqles/analytics/AAnalyser.java

@@ -1,7 +1,6 @@
 package sparqles.analytics;
 
 import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
-import org.mortbay.log.Log;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sparqles.avro.Endpoint;
@@ -35,7 +34,6 @@ static void setDateCalculator(DateCalculator calc) {
     /**
      * Computes the aggregated statistics for the Availability task
      *
-     * @param ep
      */
     public boolean analyse(AResult ares) {
         try {
@@ -171,7 +169,7 @@ private AvailabilityView getView(Endpoint ep) {
         AvailabilityView view = null;
         List<AvailabilityView> views = _db.getResults(ep, AvailabilityView.class, AvailabilityView.SCHEMA$);
         if (views.size() != 1) {
-            Log.warn("We have {} AvailabilityView, expected was 1", views.size());
+            log.warn("We have {} AvailabilityView, expected was 1", views.size());
         }
         if (views.size() == 0) {
             view = new AvailabilityView();

backend/src/main/java/sparqles/analytics/Analytics.java

@@ -1,7 +1,8 @@
 package sparqles.analytics;
 
 import org.apache.avro.specific.SpecificRecordBase;
-import org.mortbay.log.Log;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import sparqles.avro.Endpoint;
 import sparqles.avro.analytics.EPView;
 import sparqles.avro.analytics.EPViewAvailability;
@@ -28,6 +29,7 @@
  */
 public abstract class Analytics<V extends SpecificRecordBase> {
 
+    private static Logger Log = LoggerFactory.getLogger(Analytics.class);
 
     protected final MongoDBManager _db;
 

backend/src/main/java/sparqles/analytics/DAnalyser.java

@@ -1,6 +1,5 @@
 package sparqles.analytics;
 
-import org.mortbay.log.Log;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sparqles.avro.Endpoint;
@@ -183,7 +182,7 @@ private DiscoverabilityView getView(Endpoint ep) {
             views = _db.getResults(ep, DiscoverabilityView.class, DiscoverabilityView.SCHEMA$);
         }
         if (views.size() != 1) {
-            Log.warn("We have {} FeatureView, expected was 1", views.size());
+            log.warn("We have {} FeatureView, expected was 1", views.size());
         }
         if (views.size() == 0) {
             view = new DiscoverabilityView();

backend/src/main/java/sparqles/analytics/FAnalyser.java

@@ -1,6 +1,5 @@
 package sparqles.analytics;
 
-import org.mortbay.log.Log;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sparqles.avro.Endpoint;
@@ -80,7 +79,7 @@ private InteroperabilityView getView(Endpoint ep) {
         InteroperabilityView view = null;
         List<InteroperabilityView> views = _db.getResults(ep, InteroperabilityView.class, InteroperabilityView.SCHEMA$);
         if (views.size() != 1) {
-            Log.warn("We have {} FeatureView, expected was 1", views.size());
+            log.warn("We have {} FeatureView, expected was 1", views.size());
         }
         if (views.size() == 0) {
             view = new InteroperabilityView();

backend/src/main/java/sparqles/analytics/PAnalyser.java

@@ -1,7 +1,6 @@
 package sparqles.analytics;
 
 import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
-import org.mortbay.log.Log;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sparqles.avro.Endpoint;
@@ -123,7 +122,7 @@ private PerformanceView getView(Endpoint ep) {
         PerformanceView view = null;
         List<PerformanceView> views = _db.getResults(ep, PerformanceView.class, PerformanceView.SCHEMA$);
         if (views.size() != 1) {
-            Log.warn("We have {} AvailabilityView, expected was 1", views.size());
+            log.warn("We have {} AvailabilityView, expected was 1", views.size());
         }
         if (views.size() == 0) {
             view = new PerformanceView();

backend/src/main/java/sparqles/analytics/StatsAnalyser.java

@@ -1,6 +1,6 @@
 package sparqles.analytics;
 
-import org.apache.commons.math.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
 import sparqles.avro.EndpointResult;
 import sparqles.avro.analytics.Index;
 import sparqles.avro.availability.AResult;

backend/src/main/java/sparqles/utils/ConnectionManager.java

@@ -24,7 +24,6 @@
 import org.apache.http.params.CoreConnectionPNames;
 import org.apache.http.params.HttpParams;
 import org.apache.http.params.HttpProtocolParams;
-import org.mortbay.log.Log;
 
 import sparqles.core.CONSTANTS;
 

backend/src/main/java/sparqles/utils/DatahubAccess.java

@@ -1,5 +1,9 @@
 package sparqles.utils;
 
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
 import org.apache.http.client.HttpClient;
@@ -12,9 +16,6 @@
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.impl.conn.SingleClientConnManager;
 import org.apache.http.util.EntityUtils;
-import org.codehaus.jackson.JsonFactory;
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sparqles.avro.Dataset;
@@ -45,7 +46,6 @@ public class DatahubAccess {
     /**
      * This class fetch the SPARQL endpoint list from datahub using the datahub API
      *
-     * @param epm
      **/
     public static Collection<Endpoint> checkEndpointList() {
         Map<String, Endpoint> results = new HashMap<String, Endpoint>();
@@ -84,18 +84,18 @@ public static Collection<Endpoint> checkEndpointList() {
             ObjectMapper mapper = new ObjectMapper(factory);
             JsonNode rootNode = mapper.readTree(respString);
 
-            JsonNode res = rootNode.get("result");
-            res = res.get("results");
+            var resNode = rootNode.get("result");
+            var res = (ArrayNode) resNode.get("results");
             log.info("We found {} datasets", res.size());
-            Iterator<JsonNode> iter = res.getElements();
+            Iterator<JsonNode> iter = res.elements();
             int c = 1;
 
 
             Map<String, Set<String>> map = new HashMap<String, Set<String>>();
             while (iter.hasNext()) {
                 JsonNode node = iter.next();
-                String endpointURL = node.findPath("url").getTextValue().trim();
-                String datasetId = node.findPath("package_id").getTextValue().trim();
+                String endpointURL = node.findPath("url").asText().trim();
+                String datasetId = node.findPath("package_id").asText().trim();
 
                 Set<String> s = map.get(endpointURL);
                 if (s == null) {
@@ -161,7 +161,7 @@ private static Endpoint checkForDataset(Endpoint ep, String datasetId, HttpClien
             JsonNode res = rootNode.get("result");
 
 //			System.out.println(rootNode);
-            String ckan_url = res.findPath("url").getTextValue();
+            String ckan_url = res.findPath("url").asText();
             List<JsonNode> titles = res.findValues("title");
             String title = null;
             for (JsonNode s : titles) {

backend/src/test/java/sparqles/core/ARQRequestTEST.java

@@ -1,8 +1,6 @@
 package sparqles.core;
 
-import org.apache.jena.http.HttpOp;
 import org.apache.jena.query.QueryExecution;
-import org.apache.jena.query.QueryExecutionFactory;
 import org.apache.jena.query.ResultSet;
 import org.junit.After;
 import org.junit.Before;