From 5dc6e700cbcbc01833a02a193f660a286b934898 Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Fri, 13 Jan 2023 02:49:57 +0800
Subject: Code cleanup.

---
 .../com/keuin/kbackupfabric/ui/BackupManager.java  | 76 ++++++++++------------
 1 file changed, 35 insertions(+), 41 deletions(-)

(limited to 'src/main/java/com/keuin/kbackupfabric/ui/BackupManager.java')

diff --git a/src/main/java/com/keuin/kbackupfabric/ui/BackupManager.java b/src/main/java/com/keuin/kbackupfabric/ui/BackupManager.java
index d4081c6..7ee46f9 100644
--- a/src/main/java/com/keuin/kbackupfabric/ui/BackupManager.java
+++ b/src/main/java/com/keuin/kbackupfabric/ui/BackupManager.java
@@ -1,7 +1,5 @@
 package com.keuin.kbackupfabric.ui;
 
-import org.jetbrains.annotations.NotNull;
-
 import java.io.File;
 import java.io.IOException;
 import java.util.Arrays;
@@ -28,51 +26,47 @@ public class BackupManager {
      * @return all backups.
      */
     public Iterable<BackupInfo> getAllBackups() {
-        return new Iterable<BackupInfo>() {
-            @NotNull
-            @Override
-            public Iterator<BackupInfo> iterator() {
-                if (backupStorageDirectory.exists()) {
-                    if (!backupStorageDirectory.isDirectory()) {
-                        throw new RuntimeException("Backup directory is not a directory.");
-                    }
-                } else {
-                    if (!backupStorageDirectory.mkdirs()) {
-                        throw new RuntimeException("Backup directory does not exist and cannot be created.");
-                    }
+        return () -> {
+            if (backupStorageDirectory.exists()) {
+                if (!backupStorageDirectory.isDirectory()) {
+                    throw new RuntimeException("Backup directory is not a directory.");
                 }
-                File[] backupFiles = backupStorageDirectory.listFiles();
-                if (backupFiles == null) {
-                    throw new RuntimeException("Cannot list files in backup directory.");
+            } else {
+                if (!backupStorageDirectory.mkdirs()) {
+                    throw new RuntimeException("Backup directory does not exist and cannot be created.");
                 }
+            }
+            File[] backupFiles = backupStorageDirectory.listFiles();
+            if (backupFiles == null) {
+                throw new RuntimeException("Cannot list files in backup directory.");
+            }
 
-                return new Iterator<BackupInfo>() {
-                    private final Iterator<File> fileIterator = Arrays.stream(backupFiles).filter(file -> {
-                        String name = file.getName().toLowerCase();
-                        return name.endsWith(".zip") || name.endsWith(".kbi");
-                    }).iterator();
+            return new Iterator<BackupInfo>() {
+                private final Iterator<File> fileIterator = Arrays.stream(backupFiles).filter(file -> {
+                    String name = file.getName().toLowerCase();
+                    return name.endsWith(".zip") || name.endsWith(".kbi");
+                }).iterator();
 
-                    @Override
-                    public boolean hasNext() {
-                        return fileIterator.hasNext();
-                    }
+                @Override
+                public boolean hasNext() {
+                    return fileIterator.hasNext();
+                }
 
-                    @Override
-                    public BackupInfo next() {
-                        try {
-                            File backupFile = fileIterator.next();
-                            String fileName = backupFile.getName().toLowerCase();
-                            if (fileName.endsWith(".zip"))
-                                return PrimitiveBackupInfo.fromFile(backupFile);
-                            if (fileName.endsWith(".kbi"))
-                                return IncrementalBackupInfo.fromFile(backupFile);
-                            throw new RuntimeException("Invalid backup file extname");
-                        } catch (IOException e) {
-                            throw new RuntimeException(e);
-                        }
+                @Override
+                public BackupInfo next() {
+                    try {
+                        File backupFile = fileIterator.next();
+                        String fileName = backupFile.getName().toLowerCase();
+                        if (fileName.endsWith(".zip"))
+                            return PrimitiveBackupInfo.fromFile(backupFile);
+                        if (fileName.endsWith(".kbi"))
+                            return IncrementalBackupInfo.fromFile(backupFile);
+                        throw new RuntimeException("Invalid backup file extname");
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
                     }
-                };
-            }
+                }
+            };
         };
     }
 }
-- 
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