/*
* Copyright 1999-2015 dangdang.com.
* <p>
* Licensed 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.
* </p>
*/
package com.dangdang.ddframe.rdb.sharding.api;
import com.dangdang.ddframe.rdb.sharding.api.rule.DataSourceRule;
import com.dangdang.ddframe.rdb.sharding.api.rule.ShardingRule;
import com.dangdang.ddframe.rdb.sharding.api.rule.TableRule;
import com.dangdang.ddframe.rdb.sharding.jdbc.ShardingContext;
import org.junit.Test;
import javax.sql.DataSource;
import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public final class ShardingDataSourceFactoryTest {
@Test
public void assertCreateDataSourceWithShardingRuleOnly() throws SQLException, NoSuchFieldException, IllegalAccessException {
ShardingRule shardingRule = createShardingRule();
assertThat(getShardingRule(ShardingDataSourceFactory.createDataSource(shardingRule)), is(shardingRule));
}
@Test
public void assertCreateDataSourceWithShardingRuleAndProperties() throws SQLException, NoSuchFieldException, IllegalAccessException {
ShardingRule shardingRule = createShardingRule();
Properties props = new Properties();
DataSource dataSource = ShardingDataSourceFactory.createDataSource(shardingRule, props);
assertThat(getShardingRule(dataSource), is(shardingRule));
assertThat(getShardingProperties(dataSource), is(props));
}
private ShardingRule createShardingRule() throws SQLException {
DataSource dataSource = mock(DataSource.class);
Connection connection = mock(Connection.class);
DatabaseMetaData databaseMetaData = mock(DatabaseMetaData.class);
when(dataSource.getConnection()).thenReturn(connection);
when(connection.getMetaData()).thenReturn(databaseMetaData);
when(databaseMetaData.getDatabaseProductName()).thenReturn("H2");
Map<String, DataSource> dataSourceMap = new HashMap<>(1);
dataSourceMap.put("ds", dataSource);
DataSourceRule dataSourceRule = new DataSourceRule(dataSourceMap);
TableRule tableRule = TableRule.builder("logicTable").actualTables(Arrays.asList("table_0", "table_1", "table_2")).dataSourceRule(dataSourceRule).build();
return ShardingRule.builder().dataSourceRule(dataSourceRule).tableRules(Collections.singletonList(tableRule)).build();
}
private ShardingRule getShardingRule(final DataSource dataSource) throws NoSuchFieldException, IllegalAccessException {
Field field = dataSource.getClass().getDeclaredField("shardingContext");
field.setAccessible(true);
return ((ShardingContext) field.get(dataSource)).getShardingRule();
}
private Properties getShardingProperties(final DataSource dataSource) throws NoSuchFieldException, IllegalAccessException {
Field shardingPropertiesField = dataSource.getClass().getDeclaredField("shardingProperties");
shardingPropertiesField.setAccessible(true);
Field propsField = shardingPropertiesField.get(dataSource).getClass().getDeclaredField("props");
propsField.setAccessible(true);
return (Properties) propsField.get(shardingPropertiesField.get(dataSource));
}
}