From ee437ff9241a755741ddbff442796d432a7946b1 Mon Sep 17 00:00:00 2001
From: ChessNineeee <709030194@qq.com>
Date: Thu, 1 Apr 2021 22:53:58 +0800
Subject: [PATCH] parts of class sqlite's implementation

---
 .../identity/persist/sqlite/Sqlite.java       | 44 +++++++++++++++++--
 .../identity/persist/sqlite/SqliteUtil.java   |  2 +
 2 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
index 0b5debd..dfa3206 100644
--- a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
+++ b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
@@ -7,10 +7,48 @@ package minsecurity.identity.persist.sqlite;
  * @Date: 22:34 2021/04/01
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
-
+// 存在配置信息，使用单例模式封装工具类
 public class Sqlite {
+    private static final Sqlite Instance = new Sqlite(); // sqlite 唯一object
+
+    private String passwd = "2DD29CA851E7B56E4697B0E1F08507293D761A05CE4D1B628663F411A8086D99"; // 初始数据库密码
+    private String db_file = "identity.db"; // 数据库文件名
+    private Sqlite(){
 
-    public static String home(){
-        return "";
     }
+
+    /**
+     * 获取Sqlite object
+     * @return Sqlite object
+     */
+    public static Sqlite getInstance() {
+        return Instance;
+    }
+
+    /**
+     * 设置数据库的连接密码
+     * @param pass 新密码
+     * @throws Exception
+     */
+    public void setPasswd(String pass) throws Exception {
+        if (pass.length() != 64){
+            throw new Exception("Invalid Length");
+        }
+        passwd = pass;
+    }
+
+    public void open(String filePath){
+        try{
+            boolean db_exists = SqliteUtil.pathExists(filePath);
+            if (!db_exists){
+
+            }
+            String real_db_file = filePath + db_file;
+
+        }catch (Exception ex){
+            // TODO 出错时关闭数据库
+        }
+    }
+
+
 }
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
index 110b083..03820c8 100644
--- a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
+++ b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
@@ -9,6 +9,8 @@ import java.io.File;
  * @Date: 10:34 2021/03/10
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
+
+// 无配置信息，采用静态类
 public final class SqliteUtil {
     // Home returns the home directory for the executing user.
     //