add encrypt shadow example (#5746)

examples/example-core/config-utility/src/main/java/org/apache/shardingsphere/example/type/ShardingType.java

@@ -27,6 +27,8 @@ public enum ShardingType {
     
     SHARDING_SHADOW_DATABASES,
     
+    ENCRYPT_SHADOW,
+    
     MASTER_SLAVE,
     
     SHARDING_MASTER_SLAVE,

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/java/org/apache/shardingsphere/example/shadow/table/raw/jdbc/JavaConfigurationExampleMain.java

@@ -34,6 +34,7 @@ import java.sql.SQLException;
 public class JavaConfigurationExampleMain {
     
     private static ShardingType shardingType = ShardingType.SHADOW;
+//private static ShardingType shardingType = ShardingType.ENCRYPT_SHADOW;
 //    private static ShardingType shardingType = ShardingType.SHARDING_SHADOW_DATABASES;
     
     public static void main(final String[] args) throws SQLException {

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/java/org/apache/shardingsphere/example/shadow/table/raw/jdbc/YamlConfigurationExampleMain.java

@@ -31,6 +31,7 @@ import java.sql.SQLException;
 public class YamlConfigurationExampleMain {
     
     private static ShardingType shardingType = ShardingType.SHADOW;
+//    private static ShardingType shardingType = ShardingType.ENCRYPT_SHADOW;
 //    private static ShardingType shardingType = ShardingType.SHARDING_SHADOW_DATABASES;
     
     public static void main(final String[] args) throws SQLException, IOException {

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/java/org/apache/shardingsphere/example/shadow/table/raw/jdbc/config/EncryptShadowDatabasesConfiguration.java

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.shardingsphere.example.shadow.table.raw.jdbc.config;
+
+import org.apache.shardingsphere.driver.api.ShardingSphereDataSourceFactory;
+import org.apache.shardingsphere.encrypt.api.config.EncryptColumnRuleConfiguration;
+import org.apache.shardingsphere.encrypt.api.config.EncryptRuleConfiguration;
+import org.apache.shardingsphere.encrypt.api.config.EncryptTableRuleConfiguration;
+import org.apache.shardingsphere.encrypt.api.config.EncryptorRuleConfiguration;
+import org.apache.shardingsphere.example.config.ExampleConfiguration;
+import org.apache.shardingsphere.example.core.api.DataSourceUtil;
+import org.apache.shardingsphere.shadow.api.config.ShadowRuleConfiguration;
+
+import javax.sql.DataSource;
+import java.sql.SQLException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+public final class EncryptShadowDatabasesConfiguration implements ExampleConfiguration {
+    
+    @Override
+    public DataSource getDataSource() throws SQLException {
+        ShadowRuleConfiguration shadowRuleConfiguration = new ShadowRuleConfiguration("shadow", Collections.singletonMap("ds", "ds_0"));
+        Map<String, DataSource> dataSourceMap = new HashMap<>();
+        dataSourceMap.put("ds", DataSourceUtil.createDataSource("demo_ds"));
+        dataSourceMap.put("ds_0", DataSourceUtil.createDataSource("shadow_demo_ds"));
+        EncryptRuleConfiguration encryptRuleConfiguration = new EncryptRuleConfiguration(getEncryptorRuleConfiguration(), getEncryptTableRuleConfiguration());
+        Properties properties = new Properties();
+        properties.setProperty("sql.show", "true");
+        properties.setProperty("query.with.cipher.column", "true");
+        return ShardingSphereDataSourceFactory.createDataSource(dataSourceMap, Arrays.asList(shadowRuleConfiguration, encryptRuleConfiguration), properties);
+    }
+    
+    private Map<String, EncryptorRuleConfiguration> getEncryptorRuleConfiguration() {
+        Map<String, EncryptorRuleConfiguration> result = new HashMap<>();
+        Properties properties = new Properties();
+        properties.setProperty("aes.key.value", "123456");
+        EncryptorRuleConfiguration nameEncryptorRuleConfiguration = new EncryptorRuleConfiguration("aes", properties);
+        EncryptorRuleConfiguration pwdEncryptorRuleConfiguration = new EncryptorRuleConfiguration("assistedTest", null);
+        result.put("name_encryptror", nameEncryptorRuleConfiguration);
+        result.put("pwd_encryptror", pwdEncryptorRuleConfiguration);
+        return result;
+    }
+    
+    private Map<String, EncryptTableRuleConfiguration> getEncryptTableRuleConfiguration() {
+        Map<String, EncryptTableRuleConfiguration> result = new HashMap<>();
+        Map<String, EncryptColumnRuleConfiguration> columns = new HashMap<>();
+        columns.put("user_name", new EncryptColumnRuleConfiguration("user_name_plain", "user_name", "", "name_encryptror"));
+        columns.put("pwd", new EncryptColumnRuleConfiguration("", "pwd", "assisted_query_pwd", "pwd_encryptror"));
+        result.put("t_user",new EncryptTableRuleConfiguration(columns));
+        return result;
+    }
+}

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/java/org/apache/shardingsphere/example/shadow/table/raw/jdbc/config/ShadowDatabasesConfiguration.java

@@ -31,16 +31,11 @@ import java.util.Map;
 public final class ShadowDatabasesConfiguration implements ExampleConfiguration {
     
     @Override
-    public DataSource getDataSource() {
+    public DataSource getDataSource() throws SQLException {
         ShadowRuleConfiguration shadowRuleConfiguration = new ShadowRuleConfiguration("shadow", Collections.singletonMap("ds", "ds_0"));
         Map<String, DataSource> dataSourceMap = new HashMap<>();
         dataSourceMap.put("ds", DataSourceUtil.createDataSource("demo_ds"));
         dataSourceMap.put("ds_0", DataSourceUtil.createDataSource("shadow_demo_ds"));
-        try {
-            return ShardingSphereDataSourceFactory.createDataSource(dataSourceMap, Collections.singleton(shadowRuleConfiguration), null);
-        } catch (final SQLException ex) {
-            ex.printStackTrace();
-            return null;
-        }
+        return ShardingSphereDataSourceFactory.createDataSource(dataSourceMap, Collections.singleton(shadowRuleConfiguration), null);
     }
 }

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/java/org/apache/shardingsphere/example/shadow/table/raw/jdbc/factory/DataSourceFactory.java

@@ -17,6 +17,7 @@
 
 package org.apache.shardingsphere.example.shadow.table.raw.jdbc.factory;
 
+import org.apache.shardingsphere.example.shadow.table.raw.jdbc.config.EncryptShadowDatabasesConfiguration;
 import org.apache.shardingsphere.example.shadow.table.raw.jdbc.config.ShadowDatabasesConfiguration;
 import org.apache.shardingsphere.example.shadow.table.raw.jdbc.config.ShardingShadowDatabasesConfiguration;
 import org.apache.shardingsphere.example.type.ShardingType;
@@ -32,6 +33,8 @@ public class DataSourceFactory {
                 return new ShadowDatabasesConfiguration().getDataSource();
             case SHARDING_SHADOW_DATABASES:
                 return new ShardingShadowDatabasesConfiguration().getDataSource();
+            case ENCRYPT_SHADOW:
+                return new EncryptShadowDatabasesConfiguration().getDataSource();
             default:
                 throw new UnsupportedOperationException(shardingType.name());
         }

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/java/org/apache/shardingsphere/example/shadow/table/raw/jdbc/factory/YamlDataSourceFactory.java

@@ -33,6 +33,8 @@ public class YamlDataSourceFactory {
                 return YamlShardingSphereDataSourceFactory.createDataSource(getFile("/META-INF/sharding-shadow-databases.yaml"));
             case SHADOW:
                 return YamlShardingSphereDataSourceFactory.createDataSource(getFile("/META-INF/shadow-databases.yaml"));
+            case ENCRYPT_SHADOW:
+                return YamlShardingSphereDataSourceFactory.createDataSource(getFile("/META-INF/encrypt-shadow-databases.yaml"));
             default:
                 throw new UnsupportedOperationException(shardingType.name());
         }

examples/shardingsphere-jdbc-example/other-feature-example/shadow-example/shadow-raw-jdbc-example/src/main/resources/META-INF/encrypt-shadow-databases.yaml

+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+dataSources:
+  ds: !!com.zaxxer.hikari.HikariDataSource
+    driverClassName: com.mysql.jdbc.Driver
+    jdbcUrl: jdbc:mysql://localhost:3306/demo_ds?serverTimezone=UTC&useSSL=false&useUnicode=true&characterEncoding=UTF-8
+    username: root
+    password:
+  ds_0: !!com.zaxxer.hikari.HikariDataSource
+    driverClassName: com.mysql.jdbc.Driver
+    jdbcUrl: jdbc:mysql://localhost:3306/shadow_demo_ds?serverTimezone=UTC&useSSL=false&useUnicode=true&characterEncoding=UTF-8
+    username: root
+    password:
+
+rules:
+- !SHADOW
+  column: shadow
+  shadowMappings:
+    ds: ds_0
+
+- !ENCRYPT
+  encryptors:
+    name_encryptror:
+      type: aes
+      props:
+        aes.key.value: 123456
+    pwd_encryptror:
+      type: assistedTest
+  tables:
+    t_user:
+      columns:
+        user_name:
+          plainColumn: user_name_plain
+          cipherColumn: user_name
+          encryptor: name_encryptror
+        pwd:
+          cipherColumn: pwd
+          encryptor: pwd_encryptror
+          assistedQueryColumn: assisted_query_pwd
+
+props:
+  query.with.cipher.column: true
+  sql.show: true