diff --git a/src/main/java/org/gcube/application/perform/service/engine/impl/ExportCSVQuery.java b/src/main/java/org/gcube/application/perform/service/engine/impl/ExportCSVQuery.java
index 759eb23..93f4f14 100644
--- a/src/main/java/org/gcube/application/perform/service/engine/impl/ExportCSVQuery.java
+++ b/src/main/java/org/gcube/application/perform/service/engine/impl/ExportCSVQuery.java
@@ -172,7 +172,7 @@ public class ExportCSVQuery extends Query {
 		String field=actualField(filterLabel);
 		StringBuilder toReturn=new StringBuilder();
 		for(String p:filterValues)
-			toReturn.append(String.format("%1%s = '%2$s' OR",field,p));
+			toReturn.append(String.format("%1$s = '%2$s' OR",field,p));
 		toReturn.setLength(toReturn.lastIndexOf("OR"));
 		return toReturn.toString();
 	}
diff --git a/src/main/java/org/gcube/application/perform/service/rest/InterfaceCommons.java b/src/main/java/org/gcube/application/perform/service/rest/InterfaceCommons.java
index ec9b5c2..8d59b9a 100644
--- a/src/main/java/org/gcube/application/perform/service/rest/InterfaceCommons.java
+++ b/src/main/java/org/gcube/application/perform/service/rest/InterfaceCommons.java
@@ -7,14 +7,20 @@ import javax.ws.rs.WebApplicationException;
 import javax.ws.rs.core.MultivaluedMap;
 import javax.ws.rs.core.Response;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class InterfaceCommons {
 
+	private static final Logger log= LoggerFactory.getLogger(InterfaceCommons.class);
+	
 	public static final void checkMandatory(Object toCheck, String name) throws WebApplicationException{
 		if(toCheck==null)
 			throw new WebApplicationException(String.format("Parameter %1$s is mandatory",name),Response.Status.BAD_REQUEST);
 	}
 	
 	public static final List<String> getParameter(MultivaluedMap<String,String> map,String paramName, boolean mandatory){
+//		log.debug()
 		if(map.containsKey(paramName)) {
 			return map.get(paramName);
 		}else if(mandatory) throw new WebApplicationException(String.format("Parameter %1$s is mandatory",paramName),Response.Status.BAD_REQUEST);
diff --git a/src/main/java/org/gcube/application/perform/service/rest/Performance.java b/src/main/java/org/gcube/application/perform/service/rest/Performance.java
index 44f2384..32bcb24 100644
--- a/src/main/java/org/gcube/application/perform/service/rest/Performance.java
+++ b/src/main/java/org/gcube/application/perform/service/rest/Performance.java
@@ -1,6 +1,7 @@
 package org.gcube.application.perform.service.rest;
 
 import java.sql.SQLException;
+import java.util.List;
 import java.util.Map;
 
 import javax.inject.Inject;
@@ -57,8 +58,12 @@ public class Performance {
 
 			request.addAreas(InterfaceCommons.getParameter(parameters, ServiceConstants.Performance.AREA_PARAMETER, false));
 			request.addQuarters(InterfaceCommons.getParameter(parameters, ServiceConstants.Performance.QUARTER_PARAMETER, false));
-			for(String s:InterfaceCommons.getParameter(parameters, ServiceConstants.Performance.FARM_ID_PARAMETER, true)) 
+			List<String> farmidsString=InterfaceCommons.getParameter(parameters, ServiceConstants.Performance.FARM_ID_PARAMETER, true);
+			log.debug("FARMIDS : ",farmidsString);
+			for(String s:farmidsString) { 
+				log.debug("Parsing {} ",s);
 				request.addFarmId(Long.parseLong(s));
+			}
 
 			request.addSpecies(InterfaceCommons.getParameter(parameters, ServiceConstants.Performance.SPECIES_ID_PARAMETER, false));
 			request.addPeriods(InterfaceCommons.getParameter(parameters, ServiceConstants.Performance.PERIOD_PARAMETER, false));
diff --git a/src/test/java/org/gcube/application/perform/service/PerformanceTest.java b/src/test/java/org/gcube/application/perform/service/PerformanceTest.java
index bea64ba..56d9f9b 100644
--- a/src/test/java/org/gcube/application/perform/service/PerformanceTest.java
+++ b/src/test/java/org/gcube/application/perform/service/PerformanceTest.java
@@ -14,10 +14,10 @@ public class PerformanceTest extends CommonTest{
 	public void getPerformance() {
 		WebTarget target=
 				target(ServiceConstants.Performance.PATH).
-//				queryParam(ServiceConstants.Performance.AREA_PARAMETER, "A1","A2").
-//				queryParam(ServiceConstants.Performance.QUARTER_PARAMETER, "Q1","Q2").
-//				queryParam(ServiceConstants.Performance.SPECIES_ID_PARAMETER, "Gadilidae","Tonno").
-//				queryParam(ServiceConstants.Performance.PERIOD_PARAMETER, "First","Spring").
+				queryParam(ServiceConstants.Performance.AREA_PARAMETER, "A1","A2").
+				queryParam(ServiceConstants.Performance.QUARTER_PARAMETER, "Q1","Q2").
+				queryParam(ServiceConstants.Performance.SPECIES_ID_PARAMETER, "Gadilidae","Tonno").
+				queryParam(ServiceConstants.Performance.PERIOD_PARAMETER, "First","Spring").
 				queryParam(ServiceConstants.Performance.FARM_ID_PARAMETER, "13625424","1233556","12346").
 				queryParam(ServiceConstants.Performance.BATCH_TYPE_PARAMETER, "GROW_OUT_AGGREGATED");