/**
    *    Copyright 2009-2015 the original author or authors.
    *
    *    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.
   */
  package org.apache.ibatis.submitted.nestedresulthandler;
  
  import java.io.Reader;
  import java.sql.Connection;
  import java.util.List;
  
  import org.apache.ibatis.exceptions.PersistenceException;
  import org.apache.ibatis.io.Resources;
  import org.apache.ibatis.jdbc.ScriptRunner;
  import org.apache.ibatis.session.ResultContext;
  import org.apache.ibatis.session.ResultHandler;
  import org.apache.ibatis.session.SqlSession;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.junit.Assert;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  public class NestedResultHandlerTest {
    private static SqlSessionFactory sqlSessionFactory;
  
    @BeforeClass
    public static void setUp() throws Exception {
      // create a SqlSessionFactory
      Reader reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/nestedresulthandler/mybatis-config.xml");
      sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
      reader.close();
  
      // populate in-memory database
      SqlSession session = sqlSessionFactory.openSession();
      Connection conn = session.getConnection();
      reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/nestedresulthandler/CreateDB.sql");
      ScriptRunner runner = new ScriptRunner(conn);
      runner.setLogWriter(null);
      runner.runScript(reader);
      reader.close();
      session.close();
    }
  
    @Test
    public void testGetPerson() {
      SqlSession sqlSession = sqlSessionFactory.openSession();
      try {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
  
        List<Person> persons = mapper.getPersons();
  
        Person person = persons.get(0);
        Assert.assertEquals("grandma", person.getName());
        Assert.assertTrue(person.owns("book"));
        Assert.assertTrue(person.owns("tv"));
        Assert.assertEquals(2, person.getItems().size());
  
        person = persons.get(1);
        Assert.assertEquals("sister", person.getName());
        Assert.assertTrue(person.owns("phone"));
        Assert.assertTrue(person.owns("shoes"));
        Assert.assertEquals(2, person.getItems().size());
  
        person = persons.get(2);
        Assert.assertEquals("brother", person.getName());
        Assert.assertTrue(person.owns("car"));
        Assert.assertEquals(1, person.getItems().size());
      } finally {
        sqlSession.close();
      }
    }
  
    @Test
    // issue #542
    public void testGetPersonWithHandler() {
      SqlSession sqlSession = sqlSessionFactory.openSession();
      try {
        sqlSession.select("getPersons", new ResultHandler() {
          public void handleResult(ResultContext context) {
            Person person = (Person) context.getResultObject();
            if ("grandma".equals(person.getName())) {
              Assert.assertEquals(2, person.getItems().size());
            }
          }
        });
      } finally {
        sqlSession.close();
      }
   }
 
   @Test(expected=PersistenceException.class)
   public void testUnorderedGetPersonWithHandler() {
     SqlSession sqlSession = sqlSessionFactory.openSession();
     try {
       sqlSession.select("getPersonsWithItemsOrdered", new ResultHandler() {
         public void handleResult(ResultContext context) {
           Person person = (Person) context.getResultObject();
           if ("grandma".equals(person.getName())) {
             Assert.assertEquals(2, person.getItems().size());
           }
         }
       });
     } finally {
       sqlSession.close();
     }
   }
 
   /**
    * Fix bug caused by issue #542, see new issue #22 on github If we order by a
    * nested result map attribute we can miss some records and end up with
    * duplicates instead.
    */
   @Test
   public void testGetPersonOrderedByItem() {
     SqlSession sqlSession = sqlSessionFactory.openSession();
     try {
       Mapper mapper = sqlSession.getMapper(Mapper.class);
 
       List<Person> persons = mapper.getPersonsWithItemsOrdered();
 
       Person person = persons.get(0);
       Assert.assertEquals("grandma", person.getName());
       Assert.assertTrue(person.owns("book"));
       Assert.assertTrue(person.owns("tv"));
       Assert.assertEquals(2, person.getItems().size());
 
       person = persons.get(1);
       Assert.assertEquals("brother", person.getName());
       Assert.assertTrue(person.owns("car"));
       Assert.assertEquals(1, person.getItems().size());
 
       person = persons.get(2);
       Assert.assertEquals("sister", person.getName());
       Assert.assertTrue(person.owns("phone"));
       Assert.assertTrue(person.owns("shoes"));
       Assert.assertEquals(2, person.getItems().size());
     } finally {
       sqlSession.close();
     }
   }
 
 }