Add getPreferredDataType(Class) to KNIMEConverterService

Signed-off-by: Squareys <squareys@googlemail.com>

Author: Squareys

org.knime.scijava.commands/src/org/knime/scijava/commands/converter/DefaultKNIMEConverterService.java

@@ -200,4 +200,10 @@ public Collection<JavaToDataCellConverterFactory<?>> getMatchingFactories(
                 ClassUtil.ensureObjectType(javaType));
     }
 
+    @Override
+    public Optional<DataType> getPreferredDataType(final Class<?> type) {
+        return m_outRegistry.getFactoriesForSourceType(type).stream()
+                .findFirst().map(fac -> fac.getDestinationType());
+    }
+
 }

org.knime.scijava.commands/src/org/knime/scijava/commands/converter/KNIMEConverterService.java

@@ -99,4 +99,13 @@ DataCell convertToKnime(Object in, Class<?> inType, DataType type,
      */
     Collection<JavaToDataCellConverterFactory<?>> getMatchingFactories(
             Class<?> javaType);
+
+    /**
+     * Get the preferred {@link DataType} to convert a certain Java type into.
+     *
+     * @param type
+     *            the Java type
+     * @return an optional DataType which the java type can be converted into.
+     */
+    Optional<DataType> getPreferredDataType(final Class<?> type);
 }