feature: configurable CoW incremental backup

1 files changed, 56 insertions, 0 deletions

diff --git a/src/main/java/com/keuin/kbackupfabric/config/KBackupConfig.java b/src/main/java/com/keuin/kbackupfabric/config/KBackupConfig.java
new file mode 100644
index 0000000..8ece8d2
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/config/KBackupConfig.java
@@ -0,0 +1,56 @@
+package com.keuin.kbackupfabric.config;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectWriter;
+import com.keuin.kbackupfabric.util.PrintUtil;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+public class KBackupConfig {
+
+    private static KBackupConfig instance = getDefault();
+    private static final String CONFIG_FILE = "kbackup.json";
+
+    @JsonProperty("incbak_cow")
+    private Boolean incbakCow;
+
+    public static KBackupConfig getInstance() {
+        return instance;
+    }
+
+    private static KBackupConfig getDefault() {
+        return new KBackupConfig(false);
+    }
+
+    public static void load() throws IOException {
+        File file = new File(CONFIG_FILE);
+        ObjectMapper om = new ObjectMapper();
+        try {
+            instance = om.readValue(file, KBackupConfig.class);
+        } catch (FileNotFoundException ignored) {
+            // generate default config file
+            PrintUtil.info("Config file does not exist. Creating default config: " + CONFIG_FILE);
+            instance = getDefault();
+            ObjectWriter w = om.writerWithDefaultPrettyPrinter();
+            w.writeValue(file, instance);
+        }
+    }
+
+    public KBackupConfig() {
+    }
+
+    public KBackupConfig(Boolean incbakCow) {
+        this.incbakCow = incbakCow;
+    }
+
+    public Boolean getIncbakCow() {
+        return this.incbakCow;
+    }
+
+    public void setIncbakCow(Boolean incbakCow) {
+        this.incbakCow = incbakCow;
+    }
+}
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