From 5452b686a365326737a2d2a640c4cc667a1f6a05 Mon Sep 17 00:00:00 2001
From: ChessNineeee <709030194@qq.com>
Date: Thu, 1 Apr 2021 22:06:13 +0800
Subject: [PATCH 1/4] create classes in package sqlite

---
 pom.xml                                                | 10 ++++++++++
 .../minsecurity/identity/persist/sqlite/Sqlite.java    |  4 ++++
 .../identity/persist/sqlite/SqliteUtils.java           |  4 ++++
 .../minsecurity/identity/persist/sqlite/db/Db.java     |  4 ++++
 .../identity/persist/sqlite/db/Internal.java           |  4 ++++
 5 files changed, 26 insertions(+)
 create mode 100644 src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
 create mode 100644 src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
 create mode 100644 src/main/java/minsecurity/identity/persist/sqlite/db/Db.java
 create mode 100644 src/main/java/minsecurity/identity/persist/sqlite/db/Internal.java

diff --git a/pom.xml b/pom.xml
index 115f598..7666981 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,6 +17,16 @@
             </includes>
         </resource>
     </resources>
+    <plugins>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <configuration>
+                <source>8</source>
+                <target>8</target>
+            </configuration>
+        </plugin>
+    </plugins>
 </build>
 
 <dependencies>
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
new file mode 100644
index 0000000..854ab5c
--- /dev/null
+++ b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
@@ -0,0 +1,4 @@
+package minsecurity.identity.persist.sqlite;
+
+public class Sqlite {
+}
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
new file mode 100644
index 0000000..ba47e6f
--- /dev/null
+++ b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
@@ -0,0 +1,4 @@
+package minsecurity.identity.persist.sqlite;
+
+public class SqliteUtils {
+}
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/db/Db.java b/src/main/java/minsecurity/identity/persist/sqlite/db/Db.java
new file mode 100644
index 0000000..8198d7a
--- /dev/null
+++ b/src/main/java/minsecurity/identity/persist/sqlite/db/Db.java
@@ -0,0 +1,4 @@
+package minsecurity.identity.persist.sqlite.db;
+
+public class Db {
+}
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/db/Internal.java b/src/main/java/minsecurity/identity/persist/sqlite/db/Internal.java
new file mode 100644
index 0000000..11433d0
--- /dev/null
+++ b/src/main/java/minsecurity/identity/persist/sqlite/db/Internal.java
@@ -0,0 +1,4 @@
+package minsecurity.identity.persist.sqlite.db;
+
+public class Internal {
+}

From 72512834e4a4ffedefe394fd8f554f9503f13ec8 Mon Sep 17 00:00:00 2001
From: ChessNineeee <709030194@qq.com>
Date: Thu, 1 Apr 2021 22:31:29 +0800
Subject: [PATCH 2/4] sqliteUtil implementation

---
 .../identity/persist/sqlite/Sqlite.java       | 12 +++++++
 .../identity/persist/sqlite/SqliteUtil.java   | 32 +++++++++++++++++++
 .../identity/persist/sqlite/SqliteUtils.java  |  4 ---
 .../identity/sqlite/SqliteTest.java           | 14 ++++++++
 4 files changed, 58 insertions(+), 4 deletions(-)
 create mode 100644 src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
 delete mode 100644 src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
 create mode 100644 src/test/java/minsecurity/identity/sqlite/SqliteTest.java

diff --git a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
index 854ab5c..0b5debd 100644
--- a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
+++ b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
@@ -1,4 +1,16 @@
 package minsecurity.identity.persist.sqlite;
 
+/*
+ * @Author: zhengqi wu
+ * @Description: Sqlite封装
+ * @Version: 1.0.0
+ * @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
+ */
+
 public class Sqlite {
+
+    public static String home(){
+        return "";
+    }
 }
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
new file mode 100644
index 0000000..216e93b
--- /dev/null
+++ b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
@@ -0,0 +1,32 @@
+package minsecurity.identity.persist.sqlite;
+
+import java.io.File;
+
+/*
+ * @Author: zhengqi wu
+ * @Description: sqlite工具类封装
+ * @Version: 1.0.0
+ * @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
+ */
+public final class SqliteUtil {
+    // Home returns the home directory for the executing user.
+    //
+    // This uses an OS-specific method for discovering the home directory.
+    // An error is returned if a home directory cannot be detected.
+    public static String home()
+    {
+        String usrHome = System.getProperty("user.home");
+        return usrHome;
+    }
+
+    /**
+     * 判断文件是否存在
+     * @param path 特定文件路径
+     * @return 判断结果
+     */
+    public static boolean pathExists(String path){
+        File file = new File(path);
+        return file.exists();
+    }
+}
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
deleted file mode 100644
index ba47e6f..0000000
--- a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package minsecurity.identity.persist.sqlite;
-
-public class SqliteUtils {
-}
diff --git a/src/test/java/minsecurity/identity/sqlite/SqliteTest.java b/src/test/java/minsecurity/identity/sqlite/SqliteTest.java
new file mode 100644
index 0000000..8f2f170
--- /dev/null
+++ b/src/test/java/minsecurity/identity/sqlite/SqliteTest.java
@@ -0,0 +1,14 @@
+package minsecurity.identity.sqlite;
+
+import minsecurity.identity.persist.sqlite.SqliteUtil;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+
+public class SqliteTest {
+    @Test
+    public void testHome(){
+        System.out.println(SqliteUtil.home());
+        assertFalse(SqliteUtil.pathExists("/aaa/1.txt"));
+    }
+}

From 8abc77eb6b4c88efebcd216d9968c1608c4b8111 Mon Sep 17 00:00:00 2001
From: ChessNineeee <709030194@qq.com>
Date: Thu, 1 Apr 2021 22:31:47 +0800
Subject: [PATCH 3/4] sqliteUtil implementation

---
 .../java/minsecurity/identity/persist/sqlite/SqliteUtil.java   | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
index 216e93b..110b083 100644
--- a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
+++ b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
@@ -16,8 +16,7 @@ public final class SqliteUtil {
     // An error is returned if a home directory cannot be detected.
     public static String home()
     {
-        String usrHome = System.getProperty("user.home");
-        return usrHome;
+        return System.getProperty("user.home");
     }
 
     /**

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 4/4] 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.
     //