feat(scala): support copy for scala collections

MYCONTRIBUTION.md

@@ -0,0 +1 @@
+```Clean up PR descriptions by removing comments #2017```

scala/src/main/scala/org/apache/fury/serializer/scala/CollectionSerializer.scala

@@ -185,3 +185,56 @@ class ScalaSeqSerializer[A, T <: scala.collection.Seq[A]](fury: Fury, cls: Class
     new ListAdapter[Any](value)
   }
 }
+abstract class AbstractScalaCollectionSerializer[A, T <: Iterable[A]](fury: Fury, cls: Class[T])
+  extends AbstractCollectionSerializer[T](fury, cls) {
+
+  // Existing methods
+
+  // Add copy method
+  def copy(value: T): T = {
+    val builder = value.iterableFactory.newBuilder[A]
+    builder ++= value
+    builder.result()
+  }
+}
+
+class ScalaCollectionSerializer[A, T <: Iterable[A]] (fury: Fury, cls: Class[T])
+  extends AbstractScalaCollectionSerializer[A, T](fury, cls) {
+  override def onCollectionWrite(buffer: MemoryBuffer, value: T): util.Collection[_] = {
+    val factory: Factory[A, Any] = value.iterableFactory.iterableFactory
+    val adapter = new CollectionAdapter[A, T](value)
+    buffer.writeVarUint32Small7(adapter.size)
+    fury.writeRef(buffer, factory)
+    adapter
+  }
+
+  // Implement copy method
+  override def copy(value: T): T = super.copy(value)
+}
+
+class ScalaSortedSetSerializer[A, T <: scala.collection.SortedSet[A]](fury: Fury, cls: Class[T])
+  extends AbstractScalaCollectionSerializer[A, T](fury, cls) {
+  override def onCollectionWrite(buffer: MemoryBuffer, value: T): util.Collection[_] = {
+    buffer.writeVarUint32Small7(value.size)
+    val factory = value.sortedIterableFactory.evidenceIterableFactory[Any](
+      value.ordering.asInstanceOf[Ordering[Any]])
+    fury.writeRef(buffer, factory)
+    new CollectionAdapter[A, T](value)
+  }
+
+  // Implement copy method
+  override def copy(value: T): T = super.copy(value)
+}
+
+class ScalaSeqSerializer[A, T <: scala.collection.Seq[A]](fury: Fury, cls: Class[T])
+  extends AbstractScalaCollectionSerializer[A, T](fury, cls)  {
+  override def onCollectionWrite(buffer: MemoryBuffer, value: T): util.Collection[_] = {
+    buffer.writeVarUint32Small7(value.size)
+    val factory: Factory[A, Any] = value.iterableFactory.iterableFactory
+    fury.writeRef(buffer, factory)
+    new ListAdapter[Any](value)
+  }
+
+  // Implement copy method
+  override def copy(value: T): T = super.copy(value)
+}

scala/src/main/scala/org/apache/fury/serializer/scala/MapSerializer.scala

@@ -142,3 +142,44 @@ class ScalaSortedMapSerializer[K, V, T <: scala.collection.SortedMap[K, V]](fury
     new MapAdapter[K, V](value)
   }
 }
+
+abstract class AbstractScalaMapSerializer[K, V, T](fury: Fury, cls: Class[T])
+  extends AbstractMapSerializer[T](fury, cls) {
+
+  // Existing methods
+
+  // Add copy method
+  def copy(value: T): T = {
+    val builder = value.mapFactory.newBuilder[K, V]
+    builder ++= value
+    builder.result()
+  }
+}
+
+class ScalaMapSerializer[K, V, T <: scala.collection.Map[K, V]](fury: Fury, cls: Class[T])
+  extends AbstractScalaMapSerializer[K, V, T](fury, cls) {
+
+  override def onMapWrite(buffer: MemoryBuffer, value: T): util.Map[_, _] = {
+    buffer.writeVarUint32Small7(value.size)
+    val factory = value.mapFactory.mapFactory[Any, Any].asInstanceOf[Factory[Any, Any]]
+    fury.writeRef(buffer, factory)
+    new MapAdapter[K, V](value)
+  }
+
+  // Implement copy method
+  override def copy(value: T): T = super.copy(value)
+}
+
+class ScalaSortedMapSerializer[K, V, T <: scala.collection.SortedMap[K, V]](fury: Fury, cls: Class[T])
+  extends AbstractScalaMapSerializer[K, V, T](fury, cls) {
+  override def onMapWrite(buffer: MemoryBuffer, value: T): util.Map[_, _] = {
+    buffer.writeVarUint32Small7(value.size)
+    val factory = value.sortedMapFactory.sortedMapFactory[Any, Any](
+      value.ordering.asInstanceOf[Ordering[Any]]).asInstanceOf[Factory[Any, Any]]
+    fury.writeRef(buffer, factory)
+    new MapAdapter[K, V](value)
+  }
+
+  // Implement copy method
+  override def copy(value: T): T = super.copy(value)
+}

scala/src/test/scala/org/apache/fury/serializer/scala/SerializerTest.scala

@@ -0,0 +1,24 @@
+import org.scalatest.flatspec.AnyFlatSpec
+import org.scalatest.matchers.should.Matchers
+
+class SerializerTest extends AnyFlatSpec with Matchers {
+  "ScalaCollectionSerializer" should "copy collections correctly" in {
+    val fury = new Fury()
+    val original = Seq(1, 2, 3)
+    val serializer = new ScalaCollectionSerializer[Int, Seq[Int]](fury, classOf[Seq[Int]])
+
+    val copy = serializer.copy(original)
+    copy shouldEqual original
+    copy should not be theSameInstanceAs (original)
+  }
+
+  "ScalaMapSerializer" should "copy maps correctly" in {
+    val fury = new Fury()
+    val original = Map("a" -> 1, "b" -> 2)
+    val serializer = new ScalaMapSerializer[String, Int, Map[String, Int]](fury, classOf[Map[String, Int]])
+
+    val copy = serializer.copy(original)
+    copy shouldEqual original
+    copy should not be theSameInstanceAs (original)
+  }
+}