Implementing incremental backup

1 files changed, 33 insertions, 0 deletions

diff --git a/src/main/java/com/keuin/kbackupfabric/util/FilesystemUtil.java b/src/main/java/com/keuin/kbackupfabric/util/FilesystemUtil.java
new file mode 100644
index 0000000..7f74725
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/util/FilesystemUtil.java
@@ -0,0 +1,33 @@
+package com.keuin.kbackupfabric.util;
+
+import java.io.File;
+
+public class FilesystemUtil {
+
+    /**
+     * Get file sizes in bytes.
+     * @param parentDirectory path to specific file.
+     * @param fileName file name.
+     * @return bytes. If failed, return -1.
+     */
+    public static long getFileSizeBytes(String parentDirectory, String fileName) {
+        long fileSize = -1;
+        try{
+            File backupZipFile = new File(parentDirectory, fileName);
+            fileSize = backupZipFile.length();
+        } catch (SecurityException ignored){
+        }
+        return fileSize;
+    }
+
+    public static long getFileSizeBytes(String filePath) {
+        long fileSize = -1;
+        try{
+            File backupZipFile = new File(filePath);
+            fileSize = backupZipFile.length();
+        } catch (SecurityException ignored){
+        }
+        return fileSize;
+    }
+
+}