feat: support batchAdapter

pom.xml

@@ -146,7 +146,7 @@
         <dependency>
             <groupId>org.casbin</groupId>
             <artifactId>jcasbin</artifactId>
-            <version>1.1.0</version>
+            <version>1.31.2</version>
         </dependency>
         <dependency>
             <groupId>mysql</groupId>
@@ -165,6 +165,11 @@
             <version>8.2.2.jre8</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+            <version>3.2.2</version>
+        </dependency>
     </dependencies>
 
 

src/main/java/org/casbin/adapter/CasbinRuleDao.java

@@ -87,12 +87,20 @@ public interface CasbinRuleDao {
     @Insert("INSERT INTO casbin_rule (ptype,v0,v1,v2,v3,v4,v5) VALUES (#{ptype},#{v0},#{v1},#{v2},#{v3},#{v4},#{v5})")
     void insertData(CasbinRule line);
 
+    @Insert({"<script>",
+            "INSERT INTO casbin_rule (ptype, v0, v1, v2, v3, v4, v5) VALUES ",
+            "<foreach collection='list' item='item' separator=','>",
+            "(#{item.ptype}, #{item.v0}, #{item.v1}, #{item.v2}, #{item.v3}, #{item.v4}, #{item.v5})",
+            "</foreach>",
+            "</script>"
+    })
+    void insertDataBatch(@Param("list") List<CasbinRule> rules);
+
     @Insert("<script>"  +
             "DELETE FROM casbin_rule WHERE ptype = #{ptype}" +
             "<foreach collection=\"list\" item=\"item1\" index=\"index\"  separator=\" \">" +
             " AND v#{index} = #{item1}" +
             "</foreach>" +
             "</script>")
     void deleteData(@Param("ptype") String ptype, @Param("list") List<String> rules);
-
 }

src/main/java/org/casbin/adapter/MybatisAdapter.java

@@ -12,17 +12,19 @@
 import org.casbin.jcasbin.model.Assertion;
 import org.casbin.jcasbin.model.Model;
 import org.casbin.jcasbin.persist.Adapter;
+import org.casbin.jcasbin.persist.BatchAdapter;
 import org.casbin.jcasbin.persist.Helper;
 
 import javax.sql.DataSource;
 import java.util.*;
+import java.util.stream.Collectors;
 
 
 /**
  * MybatisAdapter is the Mybatis adapter for jCasbin.
  * It can load policy from Mybatis supported database or save policy to it.
  */
-public class MybatisAdapter implements Adapter {
+public class MybatisAdapter implements Adapter, BatchAdapter {
     private String driver;
     private String url;
     private String username;
@@ -104,7 +106,7 @@ private String getUrl(String url){
     private void createDatabase(){
         SqlSession sqlSession = factory.openSession(true);
         CasbinRuleDao casbinRuleDao = sqlSession.getMapper(CasbinRuleDao.class);
-        
+
         switch (driver) {
             case "com.mysql.cj.jdbc.Driver":
                 casbinRuleDao.createMysqlDatabase("casbin");
@@ -285,6 +287,30 @@ public void addPolicy(String sec, String ptype, List<String> rule) {
     }
 
 
+    /**
+     * addPolicies adds policy rules to the storage.
+     *
+     * @param sec   the section, "p" or "g".
+     * @param ptype the policy type, "p", "p2", .. or "g", "g2", ..
+     * @param rules the policy rules.
+     */
+    @Override
+    public void addPolicies(String sec, String ptype, List<List<String>> rules) {
+        if(CollectionUtils.isEmpty(rules)) {
+            return;
+        }
+        List<CasbinRule> casbinRules = rules.stream()
+                .map(rule -> savePolicyLine(sec, rule))
+                .distinct()
+                .collect(Collectors.toList());
+
+        SqlSession sqlSession = factory.openSession(true);
+        CasbinRuleDao casbinRuleDao = sqlSession.getMapper(CasbinRuleDao.class);
+        casbinRuleDao.insertDataBatch(casbinRules);
+        sqlSession.close();
+    }
+
+
     /**
      * removePolicy removes a policy rule from the storage.
      */
@@ -294,6 +320,20 @@ public void removePolicy(String sec, String ptype, List<String> rule) {
         removeFilteredPolicy(sec, ptype, 0, rule.toArray(new String[0]));
     }
 
+    /**
+     * removePolicies removes some policy rules from the storage.
+     *
+     * @param sec   the section, "p" or "g".
+     * @param ptype the policy type, "p", "p2", .. or "g", "g2", ..
+     * @param rules the policy rules.
+     */
+    @Override
+    public void removePolicies(String sec, String ptype, List<List<String>> rules) {
+        rules.forEach(rule -> {
+            removePolicy(sec, ptype, rule);
+        });
+    }
+
     /**
      * removeFilteredPolicy removes policy rules that match the filter from the storage.
      */

src/test/java/org/casbin/adapter/MybatisAdapterTest.java

@@ -100,4 +100,45 @@ public void testAddAndRemovePolicy() {
         a.loadPolicy(e.getModel());
         testEnforce(e, "cathy", "data1", "read", false);
     }
+
+    @Test
+    public void testAddAndRemovePolicyBatch() {
+        MybatisAdapter a = new MybatisAdapter(DRIVER, URL, USERNAME, PASSWORD);
+        Enforcer e = new Enforcer("examples/rbac_model.conf", a);
+
+        // test addPolicies()
+        e.clearPolicy();
+        e.addPolicies(asList(
+                asList("alice", "data1", "read"),
+                asList("bob", "data2", "write"),
+                asList("data2_admin", "data2", "read"),
+                asList("data2_admin", "data2", "write")
+        ));
+        e.clearPolicy();
+        a.loadPolicy(e.getModel());
+        testEnforce(e, "alice", "data1", "read", true);
+        testEnforce(e, "bob", "data2", "write", true);
+        testEnforce(e, "data2_admin", "data2", "read", true);
+        testEnforce(e, "data2_admin", "data2", "write", true);
+
+        // test removePolicies()
+        e.clearPolicy();
+        a.savePolicy(e.getModel());
+        e.addPolicies(asList(
+                asList("alice", "data1", "read"),
+                asList("bob", "data2", "write"),
+                asList("data2_admin", "data2", "read"),
+                asList("data2_admin", "data2", "write")
+        ));
+        e.removePolicies(asList(
+                asList("alice", "data1", "read"),
+                asList("bob", "data2", "write")
+        ));
+        e.clearPolicy();
+        a.loadPolicy(e.getModel());
+        testEnforce(e, "alice", "data1", "read", false);
+        testEnforce(e, "bob", "data2", "write", false);
+        testEnforce(e, "data2_admin", "data2", "read", true);
+        testEnforce(e, "data2_admin", "data2", "write", true);
+    }
 }