From ed08bca5c01152ced3f1b8cce26ca4dc5e17d388 Mon Sep 17 00:00:00 2001
From: Emmanuel M <emmanuelbendavid@gmail.com>
Date: Fri, 21 Dec 2018 18:47:00 -0300
Subject: [PATCH] FilePreloader.with(Class<T>) method for calling from Java

---
 README.md                                         |  4 ++--
 .../amaze/filepreloaderlibrary/FilePreloader.kt   | 15 +++++++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a0b43aa..f6c1569 100644
--- a/README.md
+++ b/README.md
@@ -59,11 +59,11 @@ class FileMetadata(path: String): DataContainer(path) {
 private static final FilePreloader FILE_PRELOADER = FilePreloader.INSTANCE;
 
 public void preload(File externalDir) {
-    FILE_PRELOADER.with(FileMetadata.class, FileMetadata::new).preloadFrom(externalDir.getAbsolutePath());
+    FILE_PRELOADER.with(FileMetadata.class).preloadFrom(externalDir.getAbsolutePath());
 }
 
 public void load(File externalDir) {
-    FILE_PRELOADER.with(FileMetadata.class, FileMetadata::new).load(externalDir.getAbsolutePath(), (fileMetadatas) -> {
+    FILE_PRELOADER.with(FileMetadata.class).load(externalDir.getAbsolutePath(), (fileMetadatas) -> {
         show(fileMetadatas); //Do something with the data
     });
 }
diff --git a/lib/src/main/java/com/amaze/filepreloaderlibrary/FilePreloader.kt b/lib/src/main/java/com/amaze/filepreloaderlibrary/FilePreloader.kt
index a1d9c03..9ca86c8 100644
--- a/lib/src/main/java/com/amaze/filepreloaderlibrary/FilePreloader.kt
+++ b/lib/src/main/java/com/amaze/filepreloaderlibrary/FilePreloader.kt
@@ -1,6 +1,7 @@
 package com.amaze.filepreloaderlibrary
 
 import android.app.Activity
+import com.amaze.filepreloaderlibrary.FilePreloader.with
 import com.amaze.filepreloaderlibrary.datastructures.DataContainer
 import com.amaze.filepreloaderlibrary.datastructures.FetcherFunction
 import com.amaze.filepreloaderlibrary.utils.LIB_CONTEXT
@@ -39,6 +40,20 @@ object FilePreloader {
      *
      * @see [with].
      */
+    fun <D: DataContainer>with(clazz: Class<D>): SpecializedPreloader<D> {
+        //A constructor will obviously produce an instance of the type-parametrized type
+        // from which the constructor has been obtained
+        @Suppress("UNCHECKED_CAST")
+        return with(clazz, clazz.getConstructor(String::class.java)::newInstance as (String) -> D)
+    }
+
+    /**
+     * For compatibity with Java
+     *
+     * If you want to use another method, that's not the constructor, the type still has to be (String) -> D
+     *
+     * @see [with].
+     */
     fun <D: DataContainer>with(clazz: Class<D>, f: FetcherFunction<D>): SpecializedPreloader<D> {
         val v = SpecializedPreloader(clazz, f)
         weakList.add(WeakReference(v))