Create VtlTypes.java

vtl-prov/src/main/java/fr/insee/vtl/prov/utils/VtlTypes.java

@@ -0,0 +1,34 @@
+package fr.insee.vtl.prov.utils;
+
+import org.threeten.extra.Interval;
+import org.threeten.extra.PeriodDuration;
+
+import java.time.Instant;
+
+public class VtlTypes {
+
+    /**
+     * Method to map Java classes and VTL basic scalar types.
+     *
+     * @param clazz Java type.
+     * @return Basic scalar type
+     */
+    public static String getVtlType(Class<?> clazz) {
+        if (clazz.equals(String.class)) {
+            return "STRING";
+        } else if (clazz.equals(Long.class)) {
+            return "INTEGER";
+        } else if (clazz.equals(Double.class)) {
+            return "NUMBER";
+        } else if (clazz.equals(Boolean.class)) {
+            return "BOOLEAN";
+        } else if (clazz.equals(Instant.class)) {
+            return "DATE";
+        } else if (clazz.equals(PeriodDuration.class)) {
+            return "DURATION";
+        } else if (clazz.equals(Interval.class)) {
+            return "TIME_PERIOD";
+        }
+        throw new UnsupportedOperationException("class " + clazz + " unsupported");
+    }
+}