HONEYCOMB-270 Add isPresent() to Readers/Customizers

So that they can influence whether empty data is to be considered as present

+ Move registries implementations from util to impl
+ Introduce DelegatingReader trait
+ Extend GenericReader where possible to reduce duplication

Change-Id: I5a416acd0c4eab1fbc30fcbe585719991dbe9215
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericListReaderTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericListReaderTest.java
index 0dc916fb8..3ed400dba 100644
--- a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericListReaderTest.java
+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/GenericListReaderTest.java
@@ -25,7 +25,6 @@ import static org.mockito.Mockito.when;
 import com.google.common.collect.Lists;
 import io.fd.honeycomb.translate.read.ReadContext;
 import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
-import java.util.Collections;
 import java.util.List;
 import org.junit.Before;
 import org.junit.Test;
@@ -78,7 +77,7 @@ public class GenericListReaderTest {
     @Test
     public void testMerge() throws Exception {
         reader.merge(builder, data);
-        verify(customizer).merge(builder, Collections.singletonList(data));
+        verify(customizer).merge(builder, data);
     }
 
     @Test