[Annotation plugin] Add GeoJsonOptions to allow to configure the underlying used GeoJsonSource

extension-style/src/main/java/com/mapbox/maps/extension/style/layers/Layer.kt

@@ -156,6 +156,15 @@ abstract class Layer : StyleContract.StyleLayerExtension {
     throw RuntimeException("Couldn't get $propertyName: layer is not added to style yet.")
   }
 
+  /**
+   * Returns a human readable string that includes the cached properties of the layer.
+   *
+   * @return String
+   */
+  override fun toString(): String {
+    return "[${layerProperties.values.joinToString { propertyValue -> "${propertyValue.propertyName} = ${propertyValue.value}" }}}]"
+  }
+
   /**
    * Static variables and methods.
    */

plugin-annotation/src/main/java/com/mapbox/maps/plugin/annotation/AnnotationManagerImpl.kt

@@ -21,6 +21,7 @@ import com.mapbox.maps.extension.style.layers.addLayerBelow
 import com.mapbox.maps.extension.style.layers.properties.PropertyValue
 import com.mapbox.maps.extension.style.sources.addSource
 import com.mapbox.maps.extension.style.sources.generated.GeoJsonSource
+import com.mapbox.maps.extension.style.sources.generated.geoJsonSource
 import com.mapbox.maps.plugin.InvalidPluginConfigurationException
 import com.mapbox.maps.plugin.PLUGIN_GESTURE_CLASS_NAME
 import com.mapbox.maps.plugin.annotation.generated.Symbol
@@ -41,7 +42,7 @@ abstract class AnnotationManagerImpl<G : Geometry, T : Annotation<G>, S : Annota
   mapView: View,
   /** The delegateProvider */
   final override val delegateProvider: MapDelegateProvider,
-  private val annotationConfig: AnnotationConfig?
+  protected val annotationConfig: AnnotationConfig?
 ) : AnnotationManager<G, T, S, D, U, V> {
   protected lateinit var style: StyleManagerInterface
   private var mapProjectionDelegate: MapProjectionDelegate = delegateProvider.mapProjectionDelegate
@@ -59,7 +60,8 @@ abstract class AnnotationManagerImpl<G : Geometry, T : Annotation<G>, S : Annota
   private var draggedAnnotation: T? = null
   protected var touchAreaShiftX: Int = mapView.scrollX
   protected var touchAreaShiftY: Int = mapView.scrollY
-
+  protected abstract val layerId: String
+  protected abstract val sourceId: String
   private var gesturesPlugin: GesturesPlugin = delegateProvider.mapPluginProviderDelegate.getPlugin(
     Class.forName(
       PLUGIN_GESTURE_CLASS_NAME
@@ -115,13 +117,6 @@ abstract class AnnotationManagerImpl<G : Geometry, T : Annotation<G>, S : Annota
    */
   abstract fun getAnnotationIdKey(): String
 
-  /**
-   * Create the source for managed annotations
-   *
-   * @return the GeoJsonSource created
-   */
-  protected abstract fun createSource(): GeoJsonSource
-
   /**
    * Create the layer for managed annotations
    *
@@ -134,6 +129,32 @@ abstract class AnnotationManagerImpl<G : Geometry, T : Annotation<G>, S : Annota
    */
   abstract var layerFilter: Expression?
 
+  private fun createSource(): GeoJsonSource {
+    return geoJsonSource(sourceId) {
+      data("")
+      annotationConfig?.geoJsonOptions?.let { options ->
+        options.buffer?.let {
+          buffer(it)
+        }
+        options.cluster?.let {
+          cluster(it)
+        }
+        options.clusterMaxZoom?.let {
+          clusterMaxZoom(it)
+        }
+        options.lineMetrics?.let {
+          lineMetrics(it)
+        }
+        options.tolerance?.let {
+          tolerance(it)
+        }
+        options.clusterProperties?.let {
+          clusterProperties(it)
+        }
+      }
+    }
+  }
+
   protected fun initLayerAndSource() {
     if (layer == null || source == null) {
       initializeDataDrivenPropertyMap()