From d29f8876ef473acd3e07fcf469a2c1aa2b2070fa Mon Sep 17 00:00:00 2001
From: JFronny <git@akbvopenfl1.hopto.org>
Date: Thu, 25 Apr 2024 14:21:18 +0200
Subject: [PATCH] fix(serialize-databind): actually implement
 TypeAdapterRuntimeTypeWrapper

---
 .../TypeAdapterRuntimeTypeWrapper.java        | 20 ++++++++--
 .../databind/test/MapAdapterTest.java         | 38 +++++++++++++++++++
 2 files changed, 54 insertions(+), 4 deletions(-)
 create mode 100644 commons-serialize-databind/src/test/java/io/gitlab/jfronny/commons/serialize/databind/test/MapAdapterTest.java

diff --git a/commons-serialize-databind/src/main/java/io/gitlab/jfronny/commons/serialize/databind/impl/adapter/TypeAdapterRuntimeTypeWrapper.java b/commons-serialize-databind/src/main/java/io/gitlab/jfronny/commons/serialize/databind/impl/adapter/TypeAdapterRuntimeTypeWrapper.java
index cd32375..ce0383b 100644
--- a/commons-serialize-databind/src/main/java/io/gitlab/jfronny/commons/serialize/databind/impl/adapter/TypeAdapterRuntimeTypeWrapper.java
+++ b/commons-serialize-databind/src/main/java/io/gitlab/jfronny/commons/serialize/databind/impl/adapter/TypeAdapterRuntimeTypeWrapper.java
@@ -1,11 +1,14 @@
 package io.gitlab.jfronny.commons.serialize.databind.impl.adapter;
 
+import io.gitlab.jfronny.commons.serialize.MalformedDataException;
 import io.gitlab.jfronny.commons.serialize.databind.ObjectMapper;
 import io.gitlab.jfronny.commons.serialize.databind.api.TypeAdapter;
 import io.gitlab.jfronny.commons.serialize.SerializeReader;
 import io.gitlab.jfronny.commons.serialize.SerializeWriter;
+import io.gitlab.jfronny.commons.serialize.databind.api.TypeToken;
 
 import java.lang.reflect.Type;
+import java.lang.reflect.TypeVariable;
 
 public class TypeAdapterRuntimeTypeWrapper<T> extends TypeAdapter<T> {
     private final ObjectMapper context;
@@ -19,12 +22,21 @@ public class TypeAdapterRuntimeTypeWrapper<T> extends TypeAdapter<T> {
     }
 
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(T value, Writer writer) throws TEx {
-
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(T value, Writer writer) throws TEx, MalformedDataException {
+        TypeAdapter<T> chosen = delegate;
+        Type runtimeType = type;
+        if (value != null && (runtimeType instanceof Class<?> || runtimeType instanceof TypeVariable<?>)) {
+            runtimeType = value.getClass();
+        }
+        if (runtimeType != type) {
+            TypeAdapter<T> runtimeTypeAdapter = (TypeAdapter<T>) context.getAdapter(TypeToken.get(runtimeType));
+            if (runtimeTypeAdapter != null) chosen = runtimeTypeAdapter;
+        }
+        chosen.serialize(value, writer);
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> T deserialize(Reader reader) throws TEx {
-        return null;
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> T deserialize(Reader reader) throws TEx, MalformedDataException {
+        return delegate.deserialize(reader);
     }
 }
diff --git a/commons-serialize-databind/src/test/java/io/gitlab/jfronny/commons/serialize/databind/test/MapAdapterTest.java b/commons-serialize-databind/src/test/java/io/gitlab/jfronny/commons/serialize/databind/test/MapAdapterTest.java
new file mode 100644
index 0000000..a144085
--- /dev/null
+++ b/commons-serialize-databind/src/test/java/io/gitlab/jfronny/commons/serialize/databind/test/MapAdapterTest.java
@@ -0,0 +1,38 @@
+package io.gitlab.jfronny.commons.serialize.databind.test;
+
+import io.gitlab.jfronny.commons.serialize.MalformedDataException;
+import io.gitlab.jfronny.commons.serialize.databind.ObjectMapper;
+import io.gitlab.jfronny.commons.serialize.databind.api.TypeAdapter;
+import io.gitlab.jfronny.commons.serialize.databind.api.TypeToken;
+import io.gitlab.jfronny.commons.serialize.emulated.DataElement;
+import io.gitlab.jfronny.commons.serialize.emulated.EmulatedReader;
+import io.gitlab.jfronny.commons.serialize.emulated.EmulatedWriter;
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class MapAdapterTest {
+    @Test
+    public void simpleMapTEst() throws MalformedDataException {
+        DataElement.Object de = new DataElement.Object();
+        de.members().put("key", new DataElement.Primitive.String("value"));
+        de.members().put("key2", new DataElement.Primitive.String("value2"));
+        de.members().put("key3", new DataElement.Primitive.String("value3"));
+        ObjectMapper om = new ObjectMapper();
+        TypeAdapter<Map<String, String>> adapter = om.getAdapter(new TypeToken<>() {});
+        Map<String, String> map;
+        try (EmulatedReader er = new EmulatedReader(de)) {
+            map = adapter.deserialize(er);
+        }
+        assertEquals(3, map.size());
+        assertEquals("value", map.get("key"));
+        assertEquals("value2", map.get("key2"));
+        assertEquals("value3", map.get("key3"));
+        try (EmulatedWriter ew = new EmulatedWriter()) {
+            adapter.serialize(map, ew);
+            assertEquals(de, ew.get());
+        }
+    }
+}