BackupMethod now becomes stateful

5 files changed, 88 insertions, 50 deletions

diff --git a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/BackupMethod.java b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/BackupMethod.java
deleted file mode 100644
index 7afbabd..0000000
--- a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/BackupMethod.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.keuin.kbackupfabric.operation.backup.method;
-
-import com.keuin.kbackupfabric.operation.backup.feedback.BackupFeedback;
-
-import java.io.IOException;
-
-/**
- * Provide specific backup method, which is implemented statelessly.
- */
-public interface BackupMethod {
-
-    /**
-     * Perform a backup with given method. The backup will be saved as the given name.
-     * Note: real file name depends on the backup type.
-     *
-     * @param customBackupName the custom backup name.
-     * @return if the backup operation succeed.
-     */
-    BackupFeedback backup(String customBackupName, String levelPath, String backupSaveDirectory) throws IOException;
-
-    boolean restore(String backupName, String levelPath, String backupSaveDirectory) throws IOException;
-
-}
diff --git a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredBackupMethod.java b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredBackupMethod.java
new file mode 100644
index 0000000..b1b8d90
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredBackupMethod.java
@@ -0,0 +1,23 @@
+package com.keuin.kbackupfabric.operation.backup.method;
+
+import com.keuin.kbackupfabric.operation.backup.feedback.BackupFeedback;
+
+import java.io.IOException;
+
+/**
+ * Provide specific backup method, which has been configured with proper settings,
+ * such as saving directory and level path.
+ */
+public interface ConfiguredBackupMethod {
+
+    /**
+     * Perform a backup with given method. The backup will be saved as the given name.
+     * Note: real file name depends on the backup type.
+     *
+     * @return backup result.
+     */
+    BackupFeedback backup() throws IOException;
+
+    boolean restore() throws IOException;
+
+}
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
new file mode 100644
index 0000000..0201d18
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethod.java
@@ -0,0 +1,52 @@
+package com.keuin.kbackupfabric.operation.backup.method;
+
+import com.keuin.kbackupfabric.operation.backup.feedback.IncrementalBackupFeedback;
+import com.keuin.kbackupfabric.util.backup.incremental.ObjectCollection;
+import com.keuin.kbackupfabric.util.backup.incremental.ObjectCollectionFactory;
+import com.keuin.kbackupfabric.util.backup.incremental.ObjectCollectionSerializer;
+import com.keuin.kbackupfabric.util.backup.incremental.identifier.Sha256Identifier;
+import com.keuin.kbackupfabric.util.backup.incremental.manager.IncrementalBackupStorageManager;
+import com.keuin.kbackupfabric.util.backup.name.IncrementalBackupFileNameEncoder;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Paths;
+import java.time.LocalDateTime;
+
+public class ConfiguredIncrementalBackupMethod implements ConfiguredBackupMethod {
+
+    private final String backupFileName;
+    private final String levelPath;
+    private final String backupSavePath;
+
+    public ConfiguredIncrementalBackupMethod(String backupFileName, String levelPath, String backupSavePath) {
+        this.backupFileName = backupFileName;
+        this.levelPath = levelPath;
+        this.backupSavePath = backupSavePath;
+    }
+
+    @Override
+    public IncrementalBackupFeedback backup() throws IOException {
+        String customBackupName = new IncrementalBackupFileNameEncoder().decode(backupFileName).customName;
+        String backupIndexFileName = new IncrementalBackupFileNameEncoder().encode(customBackupName, LocalDateTime.now());
+        File levelPathFile = new File(levelPath);
+
+        // construct incremental backup index
+        ObjectCollection collection = new ObjectCollectionFactory<>(Sha256Identifier.getFactory())
+                .fromDirectory(levelPathFile);
+
+        // update storage
+        IncrementalBackupStorageManager storageManager = new IncrementalBackupStorageManager(Paths.get(backupSavePath));
+        int filesAdded = storageManager.addObjectCollection(collection, levelPathFile);
+
+        // save index file
+        ObjectCollectionSerializer.toFile(collection, new File(backupSavePath, backupIndexFileName));
+
+        return new IncrementalBackupFeedback(filesAdded >= 0, filesAdded);
+    }
+
+    @Override
+    public boolean restore() throws IOException {
+        return false;
+    }
+}
diff --git a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/PrimitiveBackupMethod.java b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredPrimitiveBackupMethod.java
index 1f15346..c3013e9 100644
--- a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/PrimitiveBackupMethod.java
+++ b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredPrimitiveBackupMethod.java
@@ -17,12 +17,16 @@ import java.time.LocalDateTime;
 
 import static org.apache.commons.io.FileUtils.forceDelete;
 
-public class PrimitiveBackupMethod implements BackupMethod {
+public class ConfiguredPrimitiveBackupMethod implements ConfiguredBackupMethod {
 
-    private static final PrimitiveBackupMethod INSTANCE = new PrimitiveBackupMethod();
+    private final String backupFileName;
+    private final String levelPath;
+    private final String backupSavePath;
 
-    public static PrimitiveBackupMethod getInstance() {
-        return INSTANCE;
+    public ConfiguredPrimitiveBackupMethod(String backupFileName, String levelPath, String backupSavePath) {
+        this.backupFileName = backupFileName;
+        this.levelPath = levelPath;
+        this.backupSavePath = backupSavePath;
     }
 
     @Deprecated
@@ -32,10 +36,9 @@ public class PrimitiveBackupMethod implements BackupMethod {
     }
 
     @Override
-    public PrimitiveBackupFeedback backup(String customBackupName, String levelPath, String backupSavePath) throws IOException {
-//        String backupFileName = getBackupFileName(LocalDateTime.now(),backupName);
-        String backupFileName = new PrimitiveBackupFileNameEncoder().encode(customBackupName, LocalDateTime.now());
+    public PrimitiveBackupFeedback backup() throws IOException {
         try {
+            String customBackupName = new PrimitiveBackupFileNameEncoder().decode(backupFileName).customName;
             BackupMetadata backupMetadata = new BackupMetadata(System.currentTimeMillis(), customBackupName);
             PrintUtil.info(String.format("zip(srcPath=%s, destPath=%s)", levelPath, backupSavePath));
             PrintUtil.info("Compressing level ...");
@@ -50,10 +53,10 @@ public class PrimitiveBackupMethod implements BackupMethod {
     }
 
     @Override
-    public boolean restore(String backupFileName, String levelDirectory, String backupSaveDirectory) throws IOException {
+    public boolean restore() throws IOException {
         // Delete old level
         PrintUtil.info("Server stopped. Deleting old level ...");
-        File levelDirFile = new File(levelDirectory);
+        File levelDirFile = new File(levelPath);
         long startTime = System.currentTimeMillis();
 
         int failedCounter = 0;
@@ -80,7 +83,7 @@ public class PrimitiveBackupMethod implements BackupMethod {
         // TODO: Refactor this to the concrete BackupMethod.
         // Decompress archive
         PrintUtil.info("Decompressing archived level ...");
-        ZipUtil.unzip(Paths.get(backupSaveDirectory, backupFileName).toString(), levelDirectory, false);
+        ZipUtil.unzip(Paths.get(backupSavePath, backupFileName).toString(), levelPath, false);
         long endTime = System.currentTimeMillis();
         PrintUtil.info(String.format("Restore complete! (%.2fs) Please restart the server manually.", (endTime - startTime) / 1000.0));
         PrintUtil.info("If you want to restart automatically after restoring, please check the manual at: https://github.com/keuin/KBackup-Fabric/blob/master/README.md");
diff --git a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/IncrementalBackupMethod.java b/src/main/java/com/keuin/kbackupfabric/operation/backup/method/IncrementalBackupMethod.java
deleted file mode 100644
index 25e5731..0000000
--- a/src/main/java/com/keuin/kbackupfabric/operation/backup/method/IncrementalBackupMethod.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.keuin.kbackupfabric.operation.backup.method;
-
-import com.keuin.kbackupfabric.operation.backup.feedback.IncrementalBackupFeedback;
-
-import java.io.IOException;
-
-public class IncrementalBackupMethod implements BackupMethod {
-    @Override
-    public IncrementalBackupFeedback backup(String customBackupName, String levelPath, String backupSaveDirectory) throws IOException {
-        return null;
-    }
-
-    @Override
-    public boolean restore(String backupName, String levelPath, String backupSaveDirectory) throws IOException {
-        return false;
-    }
-}