Improve documentation

docs/BuildConfiguration.md

@@ -35,7 +35,7 @@ Sections follow that describe particular settings in more depth.
 | maxTransferDuration                                                      |  `duration` | Transfers up to this duration with the default walk speed value will be pre-calculated and included in the Graph.                                              | *Optional* | `"PT30M"`                         |  2.1  |
 | [multiThreadElevationCalculations](#multiThreadElevationCalculations)    |  `boolean`  | Configuring multi-threading during elevation calculations.                                                                                                     | *Optional* | `false`                           |  2.0  |
 | [osmCacheDataInMem](#osmCacheDataInMem)                                  |  `boolean`  | If OSM data should be cached in memory during processing.                                                                                                      | *Optional* | `false`                           |  2.0  |
-| osmNaming                                                                |   `string`  | A custom OSM namer to use.                                                                                                                                     | *Optional* |                                   |  1.5  |
+| [osmNaming](#osmNaming)                                                  |    `enum`   | A custom OSM namer to use.                                                                                                                                     | *Optional* | `"none"`                          |  1.5  |
 | platformEntriesLinking                                                   |  `boolean`  | Link unconnected entries to public transport platforms.                                                                                                        | *Optional* | `false`                           |  2.0  |
 | [readCachedElevations](#readCachedElevations)                            |  `boolean`  | Whether to read cached elevation data.                                                                                                                         | *Optional* | `true`                            |  2.0  |
 | staticBikeParkAndRide                                                    |  `boolean`  | Whether we should create bike P+R stations from OSM data.                                                                                                      | *Optional* | `false`                           |  1.5  |
@@ -536,6 +536,14 @@ deployment depending on your infrastructure. Set the parameter to `true` to cach
 data, and to `false` to read the stream from the source each time.
 
 
+<h3 id="osmNaming">osmNaming</h3>
+
+**Since version:** `1.5` ∙ **Type:** `enum` ∙ **Cardinality:** `Optional` ∙ **Default value:** `"none"`   
+**Path:** /   
+**Enum values:** `none` | `portland` | `sidewalks`
+
+A custom OSM namer to use.
+
 <h3 id="readCachedElevations">readCachedElevations</h3>
 
 **Since version:** `2.0` ∙ **Type:** `boolean` ∙ **Cardinality:** `Optional` ∙ **Default value:** `true`   

src/main/java/org/opentripplanner/graph_builder/module/osm/naming/SidewalkNamer.java

@@ -119,13 +119,7 @@ public void postprocess() {
           .max(Comparator.comparingDouble(NamedEdgeGroup::percentInBuffer))
           .ifPresent(group -> {
             namesApplied.incrementAndGet();
-            var name = group.name.toString();
-
-            sidewalk.setName(
-              Objects.requireNonNull(
-                I18NString.of("%s, Percent in buffer: %s".formatted(name, group.percentInBuffer))
-              )
-            );
+            sidewalk.setName(Objects.requireNonNull(group.name));
           });
 
         //Keep lambda! A method-ref would cause incorrect class and line number to be logged

src/main/java/org/opentripplanner/graph_builder/services/osm/EdgeNamer.java

@@ -52,25 +52,28 @@ public static EdgeNamer fromConfig(NodeAdapter root, String parameterName) {
         .of(parameterName)
         .summary("A custom OSM namer to use.")
         .since(OtpVersion.V1_5)
-        .asString(null);
+        .asEnum(EdgeNamerType.NONE);
       return fromConfig(osmNaming);
     }
 
     /**
      * Create a custom namer if needed, return null if not found / by default.
      */
-    public static EdgeNamer fromConfig(String type) {
-      if (type == null) {
+    public static EdgeNamer fromConfig(EdgeNamerType type) {
+      if(type == null{
         return new DefaultNamer();
       }
-
       return switch (type) {
-        case "portland" -> new PortlandCustomNamer();
-        case "sidewalks" -> new SidewalkNamer();
-        default -> throw new IllegalArgumentException(
-          String.format("Unknown osmNaming type: '%s'", type)
-        );
+        case PORTLAND -> new PortlandCustomNamer();
+        case SIDEWALKS -> new SidewalkNamer();
+        case NONE ->  new DefaultNamer();
       };
     }
   }
+
+  enum EdgeNamerType {
+    NONE,
+    PORTLAND,
+    SIDEWALKS,
+  }
 }

src/test/java/org/opentripplanner/graph_builder/services/osm/EdgeNamerTest.java

@@ -0,0 +1,12 @@
+package org.opentripplanner.graph_builder.services.osm;
+
+import org.junit.jupiter.api.Test;
+
+class EdgeNamerTest {
+
+  @Test
+  void nullType(){
+    var namer = EdgeNamer.EdgeNamerFactory.fromConfig(null);
+  }
+
+}