Minor changes

app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaDataFetcher.kt

@@ -1,11 +1,10 @@
 package eu.kanade.tachiyomi.data.glide
 
-import android.support.v4.util.AtomicFile
 import com.bumptech.glide.Priority
 import com.bumptech.glide.load.data.DataFetcher
 import eu.kanade.tachiyomi.data.database.models.Manga
 import java.io.File
-import java.io.FileInputStream
+import java.io.FileNotFoundException
 import java.io.InputStream
 
 /**
@@ -27,20 +26,32 @@ class MangaDataFetcher(private val networkFetcher: DataFetcher<InputStream>,
     @Throws(Exception::class)
     override fun loadData(priority: Priority): InputStream? {
         if (manga.favorite) {
-            if (!file.exists()) {
-                networkFetcher.loadData(priority)?.let { input ->
-                    val atomicFile = AtomicFile(file)
-                    val output = atomicFile.startWrite()
+            synchronized(file) {
+                if (!file.exists()) {
+                    val tmpFile = File(file.path + ".tmp")
                     try {
-                        input.use { it.copyTo(output) }
-                        atomicFile.finishWrite(output)
+                        // Retrieve source stream.
+                        val input = networkFetcher.loadData(priority)
+                                ?: throw Exception("Couldn't open source stream")
+
+                        // Retrieve destination stream, create parent folders if needed.
+                        val output = try {
+                            tmpFile.outputStream()
+                        } catch (e: FileNotFoundException) {
+                            tmpFile.parentFile.mkdirs()
+                            tmpFile.outputStream()
+                        }
+
+                        // Copy the file and rename to the original.
+                        input.use { output.use { input.copyTo(output) } }
+                        tmpFile.renameTo(file)
                     } catch (e: Exception) {
-                        atomicFile.failWrite(output)
+                        tmpFile.delete()
                         throw e
                     }
                 }
             }
-            return FileInputStream(file)
+            return file.inputStream()
         } else {
             if (file.exists()) {
                 file.delete()

app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaModelLoader.kt

@@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.data.glide
 
 import android.content.Context
+import android.util.LruCache
 import com.bumptech.glide.Glide
 import com.bumptech.glide.load.data.DataFetcher
 import com.bumptech.glide.load.model.*
@@ -46,7 +47,7 @@ class MangaModelLoader(context: Context) : StreamModelLoader<Manga> {
      * LRU cache whose key is the thumbnail url of the manga, and the value contains the request url
      * and the file where it should be stored in case the manga is a favorite.
      */
-    private val modelCache = ModelCache<String, Pair<GlideUrl, File>>(100)
+    private val lruCache = LruCache<String, Pair<GlideUrl, File>>(100)
 
     /**
      * Map where request headers are stored for a source.
@@ -74,6 +75,7 @@ class MangaModelLoader(context: Context) : StreamModelLoader<Manga> {
     override fun getResourceFetcher(manga: Manga,
                                     width: Int,
                                     height: Int): DataFetcher<InputStream>? {
+
         // Check thumbnail is not null or empty
         val url = manga.thumbnail_url
         if (url.isNullOrEmpty()) {
@@ -82,9 +84,9 @@ class MangaModelLoader(context: Context) : StreamModelLoader<Manga> {
 
         // Obtain the request url and the file for this url from the LRU cache, or calculate it
         // and add them to the cache.
-        val (glideUrl, file) = modelCache.get(url, width, height) ?:
+        val (glideUrl, file) = lruCache.get(url) ?:
             Pair(GlideUrl(url, getHeaders(manga)), coverCache.getCoverFile(url!!)).apply {
-                modelCache.put(url, width, height, this)
+                lruCache.put(url, this)
             }
 
         // Get the network fetcher for this request url.
@@ -103,7 +105,8 @@ class MangaModelLoader(context: Context) : StreamModelLoader<Manga> {
         val source = sourceManager.get(manga.source) as? OnlineSource ?: return LazyHeaders.DEFAULT
         return cachedHeaders.getOrPut(manga.source) {
             LazyHeaders.Builder().apply {
-                setHeader("User-Agent", null as? String)
+                val nullStr: String? = null
+                setHeader("User-Agent", nullStr)
                 for ((key, value) in source.headers.toMultimap()) {
                     addHeader(key, value[0])
                 }