Fix Oracle JRE Extension Install (#670)

* Minor cleanup

* Fix Oracle JRE Write issue

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/download/fileProvider/ChaptersFilesProvider.kt

@@ -11,11 +11,7 @@ abstract class ChaptersFilesProvider(val mangaId: Int, val chapterId: Int) : Dow
     abstract fun getImageImpl(index: Int): Pair<InputStream, String>
 
     override fun getImage(): RetrieveFile1Args<Int> {
-        return object : RetrieveFile1Args<Int> {
-            override fun execute(a: Int): Pair<InputStream, String> {
-                return getImageImpl(a)
-            }
-        }
+        return RetrieveFile1Args(::getImageImpl)
     }
 
     abstract suspend fun downloadImpl(
@@ -25,15 +21,7 @@ abstract class ChaptersFilesProvider(val mangaId: Int, val chapterId: Int) : Dow
     ): Boolean
 
     override fun download(): FileDownload3Args<DownloadChapter, CoroutineScope, suspend (DownloadChapter?, Boolean) -> Unit> {
-        return object : FileDownload3Args<DownloadChapter, CoroutineScope, suspend (DownloadChapter?, Boolean) -> Unit> {
-            override suspend fun execute(
-                a: DownloadChapter,
-                b: CoroutineScope,
-                c: suspend (DownloadChapter?, Boolean) -> Unit
-            ): Boolean {
-                return downloadImpl(a, b, c)
-            }
-        }
+        return FileDownload3Args(::downloadImpl)
     }
 
     abstract override fun delete(): Boolean

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/download/fileProvider/FileDownloader.kt

@@ -1,29 +1,25 @@
 package suwayomi.tachidesk.manga.impl.download.fileProvider
 
-@FunctionalInterface
-interface FileDownload {
+fun interface FileDownload {
     suspend fun executeDownload(vararg args: Any): Boolean
 }
 
-@FunctionalInterface
-interface FileDownload0Args : FileDownload {
+fun interface FileDownload0Args : FileDownload {
     suspend fun execute(): Boolean
 
     override suspend fun executeDownload(vararg args: Any): Boolean {
         return execute()
     }
 }
 
-@FunctionalInterface
-interface FileDownload3Args<A, B, C> : FileDownload {
+fun interface FileDownload3Args<A, B, C> : FileDownload {
     suspend fun execute(a: A, b: B, c: C): Boolean
 
     override suspend fun executeDownload(vararg args: Any): Boolean {
         return execute(args[0] as A, args[1] as B, args[2] as C)
     }
 }
 
-@FunctionalInterface
-interface FileDownloader {
+fun interface FileDownloader {
     fun download(): FileDownload
 }

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/download/fileProvider/FileRetriever.kt

@@ -2,30 +2,26 @@ package suwayomi.tachidesk.manga.impl.download.fileProvider
 
 import java.io.InputStream
 
-@FunctionalInterface
-interface RetrieveFile {
+fun interface RetrieveFile {
     fun executeGetImage(vararg args: Any): Pair<InputStream, String>
 }
 
-@FunctionalInterface
-interface RetrieveFile0Args : RetrieveFile {
+fun interface RetrieveFile0Args : RetrieveFile {
     fun execute(): Pair<InputStream, String>
 
     override fun executeGetImage(vararg args: Any): Pair<InputStream, String> {
         return execute()
     }
 }
 
-@FunctionalInterface
-interface RetrieveFile1Args<A> : RetrieveFile {
+fun interface RetrieveFile1Args<A> : RetrieveFile {
     fun execute(a: A): Pair<InputStream, String>
 
     override fun executeGetImage(vararg args: Any): Pair<InputStream, String> {
         return execute(args[0] as A)
     }
 }
 
-@FunctionalInterface
-interface FileRetriever {
+fun interface FileRetriever {
     fun getImage(): RetrieveFile
 }

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/download/fileProvider/impl/ThumbnailFileProvider.kt

@@ -37,14 +37,10 @@ class ThumbnailFileProvider(val mangaId: Int) : DownloadedFilesProvider {
     }
 
     override fun getImage(): RetrieveFile0Args {
-        return object : RetrieveFile0Args {
-            override fun execute(): Pair<InputStream, String> {
-                return getImageImpl()
-            }
-        }
+        return RetrieveFile0Args(::getImageImpl)
     }
 
-    suspend fun downloadImpl(): Boolean {
+    private suspend fun downloadImpl(): Boolean {
         val isExistingFile = getFilePath() != null
         if (isExistingFile) {
             return true
@@ -60,11 +56,7 @@ class ThumbnailFileProvider(val mangaId: Int) : DownloadedFilesProvider {
     }
 
     override fun download(): FileDownload0Args {
-        return object : FileDownload0Args {
-            override suspend fun execute(): Boolean {
-                return downloadImpl()
-            }
-        }
+        return FileDownload0Args(::downloadImpl)
     }
 
     override fun delete(): Boolean {

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/BytecodeEditor.kt

@@ -18,6 +18,7 @@ import org.objectweb.asm.Opcodes
 import java.nio.file.FileSystems
 import java.nio.file.Files
 import java.nio.file.Path
+import java.nio.file.StandardOpenOption
 import kotlin.streams.asSequence
 
 object BytecodeEditor {
@@ -257,6 +258,11 @@ object BytecodeEditor {
     }
 
     private fun write(pair: Pair<Path, ByteArray>) {
-        Files.write(pair.first, pair.second)
+        Files.write(
+            pair.first,
+            pair.second,
+            StandardOpenOption.CREATE,
+            StandardOpenOption.TRUNCATE_EXISTING
+        )
     }
 }