From 5c6fdd9f2cac4dbe03a2b639460694ca40b859d1 Mon Sep 17 00:00:00 2001
From: Andrea Aime <andrea.aime@gmail.com>
Date: Wed, 2 Sep 2026 15:19:34 +0900
Subject: [PATCH] Maplibre format support

---
 .../java/org/geowebcache/mime/ApplicationMime.java | 14 +++++++++++---
 .../org/geowebcache/mime/ApplicationMimeTest.java  | 13 +++++++++++++
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/geowebcache/core/src/main/java/org/geowebcache/mime/ApplicationMime.java b/geowebcache/core/src/main/java/org/geowebcache/mime/ApplicationMime.java
index 2073cb7f87..5f2aa42ec9 100644
--- a/geowebcache/core/src/main/java/org/geowebcache/mime/ApplicationMime.java
+++ b/geowebcache/core/src/main/java/org/geowebcache/mime/ApplicationMime.java
@@ -51,10 +51,18 @@ public class ApplicationMime extends MimeType {
             "application/vnd.mapbox-vector-tile",
             true);
 
-    static Set<ApplicationMime> ALL = ImmutableSet.of(bil16, bil32, json, topojson, geojson, utfgrid, mapboxVector);
+    public static final ApplicationMime maplibreVector = new ApplicationMime(
+            "application/vnd.maplibre-vector-tile",
+            "mlt",
+            "maplibre-vectortile",
+            "application/vnd.maplibre-vector-tile",
+            true);
+
+    static Set<ApplicationMime> ALL =
+            ImmutableSet.of(bil16, bil32, json, topojson, geojson, utfgrid, mapboxVector, maplibreVector);
 
-    private static final List<String> BINARY_FORMATS =
-            Arrays.asList(bil16.mimeType, bil32.mimeType, mapboxVector.mimeType, utfgrid.mimeType);
+    private static final List<String> BINARY_FORMATS = Arrays.asList(
+            bil16.mimeType, bil32.mimeType, mapboxVector.mimeType, maplibreVector.mimeType, utfgrid.mimeType);
 
     private static Map<String, ApplicationMime> BY_FORMAT = Maps.uniqueIndex(ALL, mimeType -> mimeType.getFormat());
 
diff --git a/geowebcache/core/src/test/java/org/geowebcache/mime/ApplicationMimeTest.java b/geowebcache/core/src/test/java/org/geowebcache/mime/ApplicationMimeTest.java
index 4e9d459432..952b1ac0e3 100644
--- a/geowebcache/core/src/test/java/org/geowebcache/mime/ApplicationMimeTest.java
+++ b/geowebcache/core/src/test/java/org/geowebcache/mime/ApplicationMimeTest.java
@@ -1,7 +1,9 @@
 package org.geowebcache.mime;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -55,5 +57,16 @@ public void testMapboxLegacyFormat() throws MimeException {
             MimeType mime = MimeType.createFromFormat(ApplicationMime.MAPBOX_TILES_LEGACY_MIME);
             assertNotNull(mime);
         }
+
+        @Test
+        public void testMapLibreVectorFormat() throws MimeException {
+            MimeType mime = MimeType.createFromFormat("application/vnd.maplibre-vector-tile");
+            assertEquals(ApplicationMime.maplibreVector, mime);
+            assertEquals("mlt", mime.getFileExtension());
+            assertEquals("maplibre-vectortile", mime.getInternalName());
+            assertTrue(mime.isVector());
+            assertTrue(mime.isBinary());
+            assertFalse(mime.isInlinePreferred());
+        }
     }
 }