add layer to shapefile

planetiler-core/src/main/java/com/onthegomap/planetiler/reader/ShapefileReader.java

@@ -37,10 +37,12 @@ public class ShapefileReader extends SimpleReader<SimpleFeature> {
   private final FeatureCollection<SimpleFeatureType, org.opengis.feature.simple.SimpleFeature> inputSource;
   private final String[] attributeNames;
   private final ShapefileDataStore dataStore;
+  private final String layer;
   private MathTransform transformToLatLon;
 
   public ShapefileReader(String sourceProjection, String sourceName, Path input) {
     super(sourceName);
+    this.layer = input.getFileName().toString().replaceAll("\\.shp$", "");
     dataStore = open(input);
     try {
       String typeName = dataStore.getTypeNames()[0];
@@ -119,7 +121,7 @@ public class ShapefileReader extends SimpleReader<SimpleFeature> {
         }
         if (latLonGeometry != null) {
           SimpleFeature geom = SimpleFeature.create(latLonGeometry, new HashMap<>(attributeNames.length),
-            sourceName, null, ++id);
+            sourceName, layer, ++id);
           for (int i = 1; i < attributeNames.length; i++) {
             geom.setTag(attributeNames[i], feature.getAttribute(i));
           }

planetiler-core/src/test/java/com/onthegomap/planetiler/PlanetilerTests.java

@@ -1697,7 +1697,8 @@ class PlanetilerTests {
         public void processFeature(SourceFeature source, FeatureCollector features) {
           features.point("stations")
             .setZoomRange(0, 14)
-            .setAttr("source", source.getSource());
+            .setAttr("source", source.getSource())
+            .setAttr("layer", source.getSourceLayer());
         }
       })
       // Match *.shp within [shapefile.zip, shapefile-copy.zip]
@@ -1715,7 +1716,7 @@ class PlanetilerTests {
       for (var tile : tileMap.values()) {
         for (var feature : tile) {
           feature.geometry().validate();
-
+          assertEquals("stations", feature.attrs().get("layer"));
           switch ((String) feature.attrs().get("source")) {
             case "shapefile" -> fileCount++;
             case "shapefile-glob" -> globCount++;

planetiler-core/src/test/java/com/onthegomap/planetiler/reader/ShapefileReaderTest.java

@@ -1,7 +1,6 @@
 package com.onthegomap.planetiler.reader;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import com.onthegomap.planetiler.TestUtils;
@@ -47,7 +46,7 @@ class ShapefileReaderTest {
   }
 
   private static void testReadShapefile(Path path) {
-    var reader = new ShapefileReader(null, "test", path);
+    try (var reader = new ShapefileReader(null, "test", path)) {
 
       for (int i = 1; i <= 2; i++) {
         assertEquals(86, reader.getFeatureCount());
@@ -60,7 +59,7 @@ class ShapefileReaderTest {
           .sinkToConsumer("counter", 1, elem -> {
             assertTrue(elem.getTag("name") instanceof String);
             assertEquals("test", elem.getSource());
-          assertNull(elem.getSourceLayer());
+            assertEquals("stations", elem.getSourceLayer());
             points.add(elem.latLonGeometry());
             names.add(elem.getTag("name").toString());
           }).await();
@@ -72,4 +71,5 @@ class ShapefileReaderTest {
         assertEquals(38.9119684, centroid.getY(), 5, "iter " + i);
       }
     }
+  }
 }