diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Service.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Service.kt
index fde1df5..6996bcd 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Service.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Service.kt
@@ -20,10 +20,10 @@ import com.synebula.gaea.log.ILogger
  * @since 2020-05-17
  */
 open class Service<TAggregateRoot : IAggregateRoot<TKey>, TKey>(
-    protected var clazz: Class<TAggregateRoot>,
-    protected var repository: IRepository,
-    protected var converter: IObjectConverter,
-    override var logger: ILogger
+        protected open var clazz: Class<TAggregateRoot>,
+        protected open var repository: IRepository,
+        protected open var converter: IObjectConverter,
+        override var logger: ILogger
 ) : IService<TKey> {
 
     override fun add(command: ICommand): Message<TKey> {
@@ -50,7 +50,7 @@ open class Service<TAggregateRoot : IAggregateRoot<TKey>, TKey>(
      * @param command 需要转换的命令
      * @return 聚合根
      */
-    protected fun convert(command: ICommand): TAggregateRoot {
+    protected open fun convert(command: ICommand): TAggregateRoot {
         try {
             return converter.convert(command, this.clazz)
         } catch (ex: Exception) {
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/io/file/FileManager.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/io/file/FileManager.kt
deleted file mode 100644
index ba8ed45..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/io/file/FileManager.kt
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.synebula.gaea.io.file
-
-import java.io.InputStream
-import java.io.OutputStream
-
-class FileManager:IFileManager {
-    override fun write(name: String, stream: InputStream): String {
-        TODO("Not yet implemented")
-    }
-
-    override fun read(path: String): OutputStream {
-        TODO("Not yet implemented")
-    }
-
-    override fun rm(path: String): Boolean {
-        TODO("Not yet implemented")
-    }
-
-    override fun mkdir(path: String, parents: Boolean) {
-        TODO("Not yet implemented")
-    }
-}
\ No newline at end of file
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/io/file/IFileManager.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/io/file/IFileManager.kt
deleted file mode 100644
index cafa7b6..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/io/file/IFileManager.kt
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.synebula.gaea.io.file
-
-import java.io.InputStream
-import java.io.OutputStream
-
-interface IFileManager {
-
-    /**
-     * 写入文件
-     * @param name 需要写入文件的短名称
-     * @param stream 二进制文件流
-     * @return 文件的全路径
-     */
-    fun write(name: String, stream: InputStream): String
-
-    /**
-     * 读取文件
-     * @param path 需要读取文件的路径
-     */
-    fun read(path: String): OutputStream
-
-    /**
-     * 删除文件
-     * @path 需要删除文件的路径
-     */
-    fun rm(path: String): Boolean
-
-    /**
-     * 创建目录
-     * @param path 需要创建的目录
-     * @param parents 如果没有父目录是否自动创建, 默认创建
-     */
-    fun mkdir(path: String, parents: Boolean = true)
-}
\ No newline at end of file