1 files changed, 41 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/fs/FileSource.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/fs/FileSource.java
new file mode 100644
index 0000000000..1ec6a8db61
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/fs/FileSource.java
@@ -0,0 +1,41 @@
+package com.mapbox.mapboxsdk.fs;
+
+import android.content.Context;
+
+import com.mapbox.mapboxsdk.offline.OfflineManager;
+
+import java.lang.ref.WeakReference;
+
+/**
+ * Holds a central reference to the core's DefaultFileSource for as long as
+ * there are active mapviews / offline managers
+ */
+public class FileSource {
+
+  // Use weak reference to avoid blocking GC on this reference.
+  // Should only block when mapview / Offline manager instances
+  // are alive
+  private static WeakReference<FileSource> INSTANCE;
+
+  public static synchronized FileSource getInstance(Context context) {
+    if (INSTANCE == null || INSTANCE.get() == null) {
+      String cachePath = OfflineManager.getDatabasePath(context);
+      String apkPath = context.getPackageCodePath();
+      INSTANCE = new WeakReference<>(new FileSource(cachePath, apkPath));
+    }
+
+    return INSTANCE.get();
+  }
+
+  private long nativePtr;
+
+  private FileSource(String cachePath, String apkPath) {
+    initialize(cachePath, apkPath);
+  }
+
+  private native void initialize(String cachePath, String apkPath);
+
+  @Override
+  protected native void finalize() throws Throwable;
+
+}