feat: improve policy comma handling (#74)

* Policy rule comma handling

* Policy rule comma handling

---------

Co-authored-by: Momchil Ignatov <momchil.ignatov@sap.com>

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

@@ -179,6 +179,7 @@ protected void migrate() throws SQLException {
     }
 
     protected void loadPolicyLine(CasbinRule line, Model model) {
+        escapeCasbinRule(line);
         String lineText = line.ptype;
         if (!"".equals(line.v0)) {
             lineText += ", " + line.v0;
@@ -540,4 +541,20 @@ protected void retry(ExecutionContext<Void> ctx) throws SQLException {
     protected String renderActualSql(String sql) {
         return sql.replace(DEFAULT_TABLE_NAME, tableName);
     }
+
+    private void escapeCasbinRule(CasbinRule line) {
+        line.v0 = escapeSingleRule(line.v0);
+        line.v1 = escapeSingleRule(line.v1);
+        line.v2 = escapeSingleRule(line.v2);
+        line.v3 = escapeSingleRule(line.v3);
+        line.v4 = escapeSingleRule(line.v4);
+        line.v5 = escapeSingleRule(line.v5);
+    }
+
+    private String escapeSingleRule(String rule) {
+        if (rule.isEmpty() || (rule.startsWith("\"") && rule.endsWith("\""))) {
+            return rule;
+        }
+        return String.format("\"%s\"", rule);
+    }
 }