Remove unneeded class

app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt

@@ -12,6 +12,7 @@ import com.bumptech.glide.signature.StringSignature
 import eu.kanade.tachiyomi.util.DiskUtils
 import java.io.File
 import java.io.IOException
+import java.io.InputStream
 
 /**
  * Class used to create cover cache.
@@ -64,19 +65,32 @@ class CoverCache(private val context: Context) {
     }
 
     /**
-     * Copy the cover from Glide's cache to this cache.
+     * Copy the given file to this cache.
      * @param thumbnailUrl url of thumbnail.
      * @param sourceFile   the source file of the cover image.
-     * @throws IOException exception returned
+     * @throws IOException if there's any error.
      */
     @Throws(IOException::class)
     fun copyToLocalCache(thumbnailUrl: String, sourceFile: File) {
         // Get destination file.
-        val destFile = File(cacheDir, DiskUtils.hashKeyForDisk(thumbnailUrl))
+        val destFile = getCoverFromCache(thumbnailUrl)
 
         sourceFile.copyTo(destFile, overwrite = true)
     }
 
+    /**
+     * Copy the given stream to this cache.
+     * @param thumbnailUrl url of the thumbnail.
+     * @param inputStream  the stream to copy.
+     * @throws IOException if there's any error.
+     */
+    @Throws(IOException::class)
+    fun copyToLocalCache(thumbnailUrl: String, inputStream: InputStream) {
+        // Get destination file.
+        val destFile = getCoverFromCache(thumbnailUrl)
+
+        destFile.outputStream().use { inputStream.copyTo(it) }
+    }
 
     /**
      * Returns the cover from cache.

app/src/main/java/eu/kanade/tachiyomi/data/io/IOHandler.kt

@@ -1,55 +0,0 @@
-package eu.kanade.tachiyomi.data.io
-
-import android.content.Context
-import java.io.File
-import java.io.FileInputStream
-import java.io.FileOutputStream
-import java.io.IOException
-
-/**
- * Returns temp file location.
- *
- * @param context context of application.
- * @throws IOException IO exception.
- * @return location of temp file.
- */
-@Throws(IOException::class)
-private fun getTempFilename(context: Context): String {
-    // Get output directory.
-    val outputDir = context.cacheDir
-
-    // Create temporary file
-    val outputFile = File.createTempFile("temp_cover", "0", outputDir)
-
-    // Return path of temporary file
-    return outputFile.absolutePath
-}
-
-/**
- * Download media to temp location and returns file path.
- *
- * @param input input stream containing input file.
- * @param context context of application.
- * @throws IOException IO exception.
- * @return location of temp file.
- */
-@Throws(IOException::class)
-fun downloadMediaAndReturnPath(input: FileInputStream, context: Context): String {
-    var output: FileOutputStream? = null
-    try {
-        // Get temp file name.
-        val tempFilename = getTempFilename(context)
-
-        output = FileOutputStream(tempFilename)
-
-        // Copy input stream to temp location.
-        input.copyTo(output)
-
-        return tempFilename
-    } finally {
-        // Close streams.
-        input.close()
-        output?.close()
-    }
-
-}

app/src/main/java/eu/kanade/tachiyomi/ui/backup/BackupFragment.kt

@@ -97,8 +97,9 @@ class BackupFragment : BaseRxFragment<BackupPresenter>() {
                     .progress(true, 0)
                     .show()
 
-            val stream = context.contentResolver.openInputStream(data.data)
-            presenter.restoreBackup(stream)
+            context.contentResolver.openInputStream(data.data).use {
+                presenter.restoreBackup(it)
+            }
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryFragment.kt

@@ -13,7 +13,6 @@ import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.database.models.Manga
-import eu.kanade.tachiyomi.data.io.downloadMediaAndReturnPath
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService
 import eu.kanade.tachiyomi.event.LibraryMangasEvent
 import eu.kanade.tachiyomi.ui.base.fragment.BaseRxFragment
@@ -25,8 +24,6 @@ import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.fragment_library.*
 import nucleus.factory.RequiresPresenter
 import org.greenrobot.eventbus.EventBus
-import java.io.File
-import java.io.FileInputStream
 import java.io.IOException
 
 /**
@@ -376,21 +373,14 @@ class LibraryFragment : BaseRxFragment<LibraryPresenter>(), ActionMode.Callback
 
                 try {
                     // Get the file's input stream from the incoming Intent
-                    val inputStream = context.contentResolver.openInputStream(data.data)
-
-                    // Convert to absolute path to prevent FileNotFoundException
-                    val result = downloadMediaAndReturnPath(inputStream as FileInputStream, context)
-
-                    // Get file from filepath
-                    val picture = File(result)
-
-                    // Update cover to selected file, show error if something went wrong
-                    if (presenter.editCoverWithLocalFile(picture, manga)) {
-                        adapter.refreshRegisteredAdapters()
-                    } else {
-                        context.toast(R.string.notification_manga_update_failed)
+                    context.contentResolver.openInputStream(data.data).use {
+                        // Update cover to selected file, show error if something went wrong
+                        if (presenter.editCoverWithStream(it, manga)) {
+                            adapter.refreshRegisteredAdapters()
+                        } else {
+                            context.toast(R.string.notification_manga_update_failed)
+                        }
                     }
-
                 } catch (e: IOException) {
                     context.toast(R.string.notification_manga_update_failed)
                     e.printStackTrace()

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt

@@ -17,8 +17,8 @@ import org.greenrobot.eventbus.EventBus
 import rx.Observable
 import rx.android.schedulers.AndroidSchedulers
 import rx.subjects.BehaviorSubject
-import java.io.File
 import java.io.IOException
+import java.io.InputStream
 import java.util.*
 import javax.inject.Inject
 
@@ -273,17 +273,14 @@ class LibraryPresenter : BasePresenter<LibraryFragment>() {
     /**
      * Update cover with local file.
      *
-     * @param file the new cover.
+     * @param inputStream the new cover.
      * @param manga the manga edited.
      * @return true if the cover is updated, false otherwise
      */
     @Throws(IOException::class)
-    fun editCoverWithLocalFile(file: File, manga: Manga): Boolean {
-        if (!manga.initialized)
-            return false
-
-        if (manga.favorite) {
-            coverCache.copyToLocalCache(manga.thumbnail_url, file)
+    fun editCoverWithStream(inputStream: InputStream, manga: Manga): Boolean {
+        if (manga.thumbnail_url != null && manga.favorite) {
+            coverCache.copyToLocalCache(manga.thumbnail_url, inputStream)
             return true
         }
         return false