file fixing

src/main/kotlin/id/co/sangkuriang/inovasi/daerah/master/controller/FileController.kt

 package id.co.sangkuriang.inovasi.daerah.master.controller
 
-import id.co.sangkuriang.inovasi.daerah.master.constant.*
+import id.co.sangkuriang.inovasi.daerah.master.constant.UPLOAD_ICON_APPLICATION_CATEGORY_DIR
+import id.co.sangkuriang.inovasi.daerah.master.constant.UPLOAD_IMAGE_APPLICATION_CATEGORY_DIR
 import id.co.sangkuriang.inovasi.daerah.master.exception.NotFoundException
 import org.apache.commons.io.IOUtils
 import org.springframework.http.MediaType
@@ -28,6 +29,7 @@ class FileController {
         @RequestParam fileName: String,
         response: HttpServletResponse
     ): ByteArray? {
+        var fis: FileInputStream? = null
         try {
             var dir = ""
             when (type) {
@@ -41,13 +43,15 @@ class FileController {
 
             val file = File(dir + File.separator + fileName)
             if (file.exists()) {
-                val fis = FileInputStream(file)
+                fis = FileInputStream(file)
                 return IOUtils.toByteArray(fis)
             }
 
             throw NotFoundException()
         } catch (e: Exception) {
             throw e
+        } finally {
+            fis?.close()
         }
     }
 }

src/main/kotlin/id/co/sangkuriang/inovasi/daerah/master/utility/Helpers.kt

@@ -9,12 +9,9 @@ import org.apache.commons.io.FileUtils
 import org.springframework.security.core.context.SecurityContextHolder
 import org.springframework.web.multipart.MultipartFile
 import java.io.File
-import java.io.IOException
+import java.io.FileOutputStream
 import java.net.MalformedURLException
 import java.net.URL
-import java.nio.file.Files
-import java.nio.file.Path
-import java.nio.file.Paths
 import javax.servlet.http.HttpServletRequest
 
 fun getUsersLogin(): Users? {
@@ -59,11 +56,12 @@ fun getPathUrl(request: HttpServletRequest): String {
 
 
 fun uploadFile(
-    file: MultipartFile,
+    multipart: MultipartFile,
     httpServletRequest: HttpServletRequest,
     path: String,
     fileType: String? = "images"
 ): String {
+    var fos: FileOutputStream? = null
     try {
         var dirType = ""
         when (path) {
@@ -75,28 +73,30 @@ fun uploadFile(
             }
         }
 
-        val root: Path = Paths.get(path)
-        if (!Files.exists(root)) {
-            try {
-                Files.createDirectories(Paths.get(path))
-            } catch (e: IOException) {
-                throw RuntimeException("Could not create upload folder!")
-            }
+        val fileName =
+            System.currentTimeMillis().toString() + "-" + multipart.originalFilename?.trim()?.replace(" ", "-")
+
+        val dir = File(path)
+        if (!dir.exists()) {
+            dir.mkdirs()
         }
 
-        val fileName =
-            System.currentTimeMillis().toString() + "-" + file.originalFilename?.trim()?.replace(" ", "-")
-        Files.copy(file.inputStream, root.resolve(fileName))
+        val convFile = File(dir.absolutePath + File.separator + fileName)
+        fos = FileOutputStream(convFile)
+        fos.write(multipart.bytes)
+        fos.close()
 
         return getBaseUrl(httpServletRequest) + "file/$fileType?type=$dirType&fileName=" + fileName
     } catch (e: Exception) {
         throw RuntimeException("Could not store the file. Error: " + e.message)
+    } finally {
+        fos?.close()
     }
 }
 
-fun deleteFile(fileDir: String, file: String) {
+fun deleteFile(fileDir: String, file: String?) {
     try {
-        val delete = File(fileDir + File.separator + file.substringAfterLast("fileName="))
+        val delete = File(fileDir + File.separator + file?.substringAfterLast("fileName="))
         if (delete.exists()) {
             FileUtils.forceDelete(delete)
         }