feat: support CLI usage for enforceEx (#406)

Author: JackYifan

src/main/java/org/casbin/jcasbin/cli/Client.java

@@ -7,27 +7,36 @@ public class Client {
 
     public static void main(String[] args) {
         try {
-            boolean res = clientEnforce(args);
+            Object res = clientEnforce(args);
             System.out.println(res);
         } catch (ParseException e) {
             e.printStackTrace();
         }
     }
 
-    public static boolean clientEnforce(String[] args) throws ParseException {
+    public static Object clientEnforce(String[] args) throws ParseException {
         Options options = new Options();
         Option model = new Option("m", "model", true, "the path of the model file");
         options.addOption(model);
         Option config = new Option("p", "policy", true, "the path of the policy file");
         options.addOption(config);
         Option enforceCMD = new Option("e", "enforce", true, "enforce");
         options.addOption(enforceCMD);
+        Option enforceExCMD = new Option("ex", "enforceEx", true, "enforceEx");
+        options.addOption(enforceExCMD);
         CommandLineParser parser = new DefaultParser();
         CommandLine cmd = parser.parse(options, args);
         String modelPath = cmd.getOptionValue("model");
         String policyFile = cmd.getOptionValue("policy");
         Enforcer e = new Enforcer(modelPath, policyFile);
-        String enforce = cmd.getOptionValue("enforce");
-        return e.enforce(enforce.split(","));
+        if (cmd.hasOption("enforce")) {
+            String enforceArgs = cmd.getOptionValue("enforce");
+            return e.enforce(enforceArgs.split(","));
+        } else if (cmd.hasOption("enforceEx")) {
+            String enforceExArgs = cmd.getOptionValue("enforceEx");
+            return e.enforceEx(enforceExArgs.split(","));
+        } else {
+            return null;
+        }
     }
 }

src/test/java/org/casbin/jcasbin/main/ClientTest.java

@@ -32,4 +32,20 @@ public void testABAC() throws ParseException {
         assertEquals(Client.clientEnforce(new String[]{"-m","examples/abac_rule_with_domains_model.conf","-p","examples/abac_rule_with_domains_policy.csv","-e","bob,domain2,data2,read"}), true);
     }
 
+    @Test
+    public void testEnforceEx() throws ParseException {
+        testEnforceExCli((EnforceResult)Client.clientEnforce(new String[]{"-m", "examples/basic_model.conf", "-p", "examples/basic_policy.csv", "-ex", "alice,data1,read"}),true, new String[]{"alice", "data1", "read"});
+        testEnforceExCli((EnforceResult)Client.clientEnforce(new String[]{"-m", "examples/basic_model.conf", "-p", "examples/basic_policy.csv", "-ex", "bob,data2,write"}),true, new String[]{"bob", "data2", "write"});
+        testEnforceExCli((EnforceResult)Client.clientEnforce(new String[]{"-m", "examples/basic_model.conf", "-p", "examples/basic_policy.csv", "-ex", "root,data2,read"}),false, new String[]{});
+        testEnforceExCli((EnforceResult)Client.clientEnforce(new String[]{"-m", "examples/basic_model.conf", "-p", "examples/basic_policy.csv", "-ex", "root,data3,read"}),false, new String[]{});
+        testEnforceExCli((EnforceResult)Client.clientEnforce(new String[]{"-m", "examples/basic_model.conf", "-p", "examples/basic_policy.csv", "-ex", "jack,data3,read"}),false, new String[]{});
+    }
+
+    private void testEnforceExCli(EnforceResult enforceResult, boolean res, String[] explain) {
+        assertEquals(res, enforceResult.isAllow());
+        for (int i = 0; i < explain.length; i++) {
+            assertEquals(explain[i], enforceResult.getExplain().get(i));
+        }
+    }
+
 }