1 /***********************************************************************
2  * Copyright (c) 2013-2024 Commonwealth Computer Research, Inc.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Apache License, Version 2.0
5  * which accompanies this distribution and is available at
6  * http://www.opensource.org/licenses/apache2.0.php.
7  ***********************************************************************/
8 
9 package org.locationtech.geomesa.utils.geotools.converters
10 
11 import org.geotools.util.factory.Hints
12 import org.geotools.util.{Converter, ConverterFactory}
13 
14 class ScalaCollectionsConverterFactory extends ConverterFactory {
15 
16   def createConverter(source: Class[_], target: Class[_], hints: Hints): Converter = {
17     if (classOf[java.util.List[_]].isAssignableFrom(target)) {
18        if (classOf[scala.collection.Seq[_]].isAssignableFrom(source)) {
19          return ScalaCollectionsConverterFactory.SeqToJava
20        }
21     } else if (classOf[java.util.List[_]].isAssignableFrom(source)) {
22       if (classOf[scala.collection.immutable.Seq[_]].isAssignableFrom(target)) {
23         return ScalaCollectionsConverterFactory.JavaToImmutableSeq
24       } else if (classOf[scala.collection.mutable.Seq[_]].isAssignableFrom(target)) {
25         return ScalaCollectionsConverterFactory.JavaToMutableSeq
26       }
27     } else if (classOf[java.util.Map[_, _]].isAssignableFrom(target)) {
28       if (classOf[scala.collection.Map[_, _]].isAssignableFrom(source)) {
29         return ScalaCollectionsConverterFactory.MapToJava
30       }
31     } else if (classOf[java.util.Map[_, _]].isAssignableFrom(source)) {
32       if (classOf[scala.collection.immutable.Map[_, _]].isAssignableFrom(target)) {
33         return ScalaCollectionsConverterFactory.JavaToImmutableMap
34       } else if (classOf[scala.collection.mutable.Map[_, _]].isAssignableFrom(target)) {
35         return ScalaCollectionsConverterFactory.JavaToMutableMap
36       }
37     }
38     null
39   }
40 }
41 
42 object ScalaCollectionsConverterFactory {
43 
44   import scala.collection.JavaConverters._
45 
46   object SeqToJava extends Converter {
47     override def convert[T](source: Any, target: Class[T]): T =
48       source.asInstanceOf[scala.collection.Seq[_]].asJava.asInstanceOf[T]
49   }
50 
51   object JavaToImmutableSeq extends Converter {
52     override def convert[T](source: Any, target: Class[T]): T =
53       source.asInstanceOf[java.util.List[_]].asScala.toSeq.asInstanceOf[T]
54   }
55 
56   object JavaToMutableSeq extends Converter {
57     override def convert[T](source: Any, target: Class[T]): T =
58       source.asInstanceOf[java.util.List[_]].asScala.asInstanceOf[T]
59   }
60 
61   object MapToJava extends Converter {
62     override def convert[T](source: Any, target: Class[T]): T =
63       source.asInstanceOf[scala.collection.Map[_, _]].asJava.asInstanceOf[T]
64   }
65 
66   object JavaToImmutableMap extends Converter {
67     override def convert[T](source: Any, target: Class[T]): T =
68       source.asInstanceOf[java.util.Map[_, _]].asScala.toMap.asInstanceOf[T]
69   }
70 
71   object JavaToMutableMap extends Converter {
72     override def convert[T](source: Any, target: Class[T]): T =
73       source.asInstanceOf[java.util.Map[_, _]].asScala.asInstanceOf[T]
74   }
75 }