[Graph Dump] added test class to generate the json schema of the dump

src/test/java/eu/dnetlib/dhp/schema/oaf/dump/GenerateJsonSchema.java

@@ -0,0 +1,27 @@
+package eu.dnetlib.dhp.schema.oaf.dump;
+
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.github.victools.jsonschema.generator.*;
+
+import eu.dnetlib.dhp.schema.dump.oaf.graph.*;
+
+@Disabled
+class GenerateJsonSchema {
+
+    @Test
+    void generateSchema() {
+        SchemaGeneratorConfigBuilder configBuilder = new SchemaGeneratorConfigBuilder(SchemaVersion.DRAFT_7,
+                OptionPreset.PLAIN_JSON)
+                .with(Option.SCHEMA_VERSION_INDICATOR)
+                .without(Option.NONPUBLIC_NONSTATIC_FIELDS_WITHOUT_GETTERS);
+        configBuilder.forFields().withDescriptionResolver(field -> "Description of " + field.getDeclaredName());
+        SchemaGeneratorConfig config = configBuilder.build();
+        SchemaGenerator generator = new SchemaGenerator(config);
+        JsonNode jsonSchema = generator.generateSchema(GraphResult.class);
+
+        System.out.println(jsonSchema.toString());
+    }
+}