3 files changed, 37 insertions, 30 deletions
diff --git a/src/main/java/com/keuin/kbackupfabric/autobackup/AutoBackupScheduler.java b/src/main/java/com/keuin/kbackupfabric/autobackup/AutoBackupDispatcher.java
index c35a35d..32d626e 100644
--- a/src/main/java/com/keuin/kbackupfabric/autobackup/AutoBackupScheduler.java
+++ b/src/main/java/com/keuin/kbackupfabric/autobackup/AutoBackupDispatcher.java
@@ -5,14 +5,14 @@ import java.util.Timer;
 import java.util.TimerTask;
 import java.util.logging.Logger;
 
-public class AutoBackupScheduler {
+public class AutoBackupDispatcher {
 
     private Timer timer = null;
-    private final Logger logger = Logger.getLogger(AutoBackupScheduler.class.getName());
+    private final Logger logger = Logger.getLogger(AutoBackupDispatcher.class.getName());
     private boolean skipIfNoPlayerLoggedIn;
     private final PlayerActivityTracker playerActivityTracker;
 
-    public AutoBackupScheduler(int intervalSeconds, boolean skipIfNoPlayerLoggedIn, PlayerActivityTracker playerActivityTracker) {
+    public AutoBackupDispatcher(int intervalSeconds, boolean skipIfNoPlayerLoggedIn, PlayerActivityTracker playerActivityTracker) {
         this.skipIfNoPlayerLoggedIn = skipIfNoPlayerLoggedIn;
         this.playerActivityTracker = playerActivityTracker;
         if (intervalSeconds > 0)
diff --git a/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java b/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java
index 6661a27..3323348 100644
--- a/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java
+++ b/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java
@@ -11,17 +11,17 @@ import java.util.Objects;
 public class IncCopyResult {
 
     private final int totalFiles;
-    private final int filesCopied;
-    private final long bytesCopied;
-    private final long bytesTotal;
+    private final int copiedFiles;
+    private final long copiedBytes;
+    private final long totalBytes;
 
     public static final IncCopyResult ZERO = new IncCopyResult(0, 0, 0, 0);
 
-    public IncCopyResult(int totalFiles, int filesCopied, long bytesCopied, long bytesTotal) {
+    public IncCopyResult(int totalFiles, int copiedFiles, long copiedBytes, long totalBytes) {
         this.totalFiles = totalFiles;
-        this.filesCopied = filesCopied;
-        this.bytesCopied = bytesCopied;
-        this.bytesTotal = bytesTotal;
+        this.copiedFiles = copiedFiles;
+        this.copiedBytes = copiedBytes;
+        this.totalBytes = totalBytes;
     }
 
     /**
@@ -38,8 +38,8 @@ public class IncCopyResult {
      *
      * @return file count.
      */
-    public int getFilesCopied() {
-        return filesCopied;
+    public int getCopiedFiles() {
+        return copiedFiles;
     }
 
     /**
@@ -47,8 +47,8 @@ public class IncCopyResult {
      *
      * @return bytes.
      */
-    public long getBytesCopied() {
-        return bytesCopied;
+    public long getCopiedBytes() {
+        return copiedBytes;
     }
 
     /**
@@ -56,8 +56,8 @@ public class IncCopyResult {
      *
      * @return bytes.
      */
-    public long getBytesTotal() {
-        return bytesTotal;
+    public long getTotalBytes() {
+        return totalBytes;
     }
 
     /**
@@ -70,9 +70,9 @@ public class IncCopyResult {
         Objects.requireNonNull(a);
         return new IncCopyResult(
                 totalFiles + a.totalFiles,
-                filesCopied + a.filesCopied,
-                bytesCopied + a.bytesCopied,
-                bytesTotal + a.bytesTotal
+                copiedFiles + a.copiedFiles,
+                copiedBytes + a.copiedBytes,
+                totalBytes + a.totalBytes
         );
     }
 
@@ -82,25 +82,25 @@ public class IncCopyResult {
         if (o == null || getClass() != o.getClass()) return false;
         IncCopyResult that = (IncCopyResult) o;
         return totalFiles == that.totalFiles &&
-                filesCopied == that.filesCopied &&
-                bytesCopied == that.bytesCopied &&
-                bytesTotal == that.bytesTotal;
+                copiedFiles == that.copiedFiles &&
+                copiedBytes == that.copiedBytes &&
+                totalBytes == that.totalBytes;
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(totalFiles, filesCopied, bytesCopied, bytesTotal);
+        return Objects.hash(totalFiles, copiedFiles, copiedBytes, totalBytes);
     }
 
     @Override
     public String toString() {
         return String.format(
                 "File(s) added: %d (%s in size, totally %d files). Total backup-ed files size: %s (%.2f%% reused)",
-                filesCopied,
-                BackupFilesystemUtil.getFriendlyFileSizeString(bytesCopied),
+                copiedFiles,
+                BackupFilesystemUtil.getFriendlyFileSizeString(copiedBytes),
                 totalFiles,
-                BackupFilesystemUtil.getFriendlyFileSizeString(bytesTotal),
-                (1 - 1.0f * bytesCopied / bytesTotal) * 100
+                BackupFilesystemUtil.getFriendlyFileSizeString(totalBytes),
+                (1 - 1.0f * copiedBytes / totalBytes) * 100
         );
     }
 }
diff --git a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethod.java b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethod.java
index 5fe532a..0c202e1 100644
--- a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethod.java
+++ b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethod.java
@@ -75,6 +75,13 @@ public class ConfiguredIncrementalBackupMethod implements ConfiguredBackupMethod
             // legacy index file
 //            ObjectCollectionSerializer.toFile(collection, new File(backupIndexFileSaveDirectory, backupIndexFileName));
 
+            // create directory
+            final File indexDirectoryFile = new File(backupIndexFileSaveDirectory);
+            if (indexDirectoryFile.isFile())
+                throw new IOException("There is a file which has the same name with index directory");
+            if (!indexDirectoryFile.isDirectory() && !indexDirectoryFile.mkdirs())
+                throw new IOException("Backup index save directory does not exist and we failed to create it");
+
             // newer saved info (with metadata)
             File indexFile = new File(backupIndexFileSaveDirectory, backupIndexFileName);
             BackupFileNameEncoder.BackupBasicInformation info = IncrementalBackupFileNameEncoder.INSTANCE.decode(backupIndexFileName);
@@ -82,9 +89,9 @@ public class ConfiguredIncrementalBackupMethod implements ConfiguredBackupMethod
                     collection,
                     info.customName,
                     info.time.atZone(ZoneId.systemDefault()),
-                    copyResult.getBytesTotal(),
-                    copyResult.getBytesCopied(),
-                    copyResult.getFilesCopied(),
+                    copyResult.getTotalBytes(),
+                    copyResult.getCopiedBytes(),
+                    copyResult.getCopiedFiles(),
                     copyResult.getTotalFiles()
             ));