dhp-workflows/dhp-enrichment/src/main/java/eu/dnetlib/dhp/PropagationConstant.java

@@ -228,10 +228,15 @@ public class PropagationConstant {
 
 	public static <R> Dataset<R> readPath(
 		SparkSession spark, String inputPath, Class<R> clazz) {
+
+		if (HdfsSupport.exists(inputPath, spark.sparkContext().hadoopConfiguration())) {
 			return spark
 					.read()
 					.textFile(inputPath)
 					.map((MapFunction<String, R>) value -> OBJECT_MAPPER.readValue(value, clazz), Encoders.bean(clazz));
+		} else {
+			return spark.emptyDataset(Encoders.bean(clazz));
+		}
 	}
 
 }