/*
    *    Copyright 2009-2021 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.lazy_deserialize;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  import java.io.Reader;
  
  import org.apache.ibatis.BaseDataTest;
  import org.apache.ibatis.executor.ExecutorException;
  import org.apache.ibatis.io.Resources;
  import org.apache.ibatis.session.Configuration;
  import org.apache.ibatis.session.SqlSession;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  /**
   *
   * @since 2011-04-06T10:58:55+0200
   * @author Franta Mejta
   */
  class LazyDeserializeTest {
  
    private static final int FOO_ID = 1;
    private static final int BAR_ID = 10;
    private static SqlSessionFactory factory;
  
    public static Configuration getConfiguration() {
      return factory.getConfiguration();
    }
  
    @BeforeEach
    void setupClass() throws Exception {
      try (Reader reader = Resources
          .getResourceAsReader("org/apache/ibatis/submitted/lazy_deserialize/ibatisConfig.xml")) {
        factory = new SqlSessionFactoryBuilder().build(reader);
      }
  
      BaseDataTest.runScript(factory.getConfiguration().getEnvironment().getDataSource(),
          "org/apache/ibatis/submitted/lazy_deserialize/CreateDB.sql");
    }
  
    @Test
    void testLoadLazyDeserialize() throws Exception {
      factory.getConfiguration().setConfigurationFactory(this.getClass());
      try (SqlSession session = factory.openSession()) {
        final Mapper mapper = session.getMapper(Mapper.class);
        final LazyObjectFoo foo = mapper.loadFoo(FOO_ID);
  
        final byte[] serializedFoo = this.serializeFoo(foo);
        final LazyObjectFoo deserializedFoo = this.deserializeFoo(serializedFoo);
  
        assertNotNull(deserializedFoo);
        assertEquals(Integer.valueOf(FOO_ID), deserializedFoo.getId());
        assertNotNull(deserializedFoo.getLazyObjectBar());
        assertEquals(Integer.valueOf(BAR_ID), deserializedFoo.getLazyObjectBar().getId());
      }
    }
  
    @Test
    void testLoadLazyDeserializeWithoutConfigurationFactory() throws Exception {
      try (SqlSession session = factory.openSession()) {
        final Mapper mapper = session.getMapper(Mapper.class);
        final LazyObjectFoo foo = mapper.loadFoo(FOO_ID);
        final byte[] serializedFoo = this.serializeFoo(foo);
        final LazyObjectFoo deserializedFoo = this.deserializeFoo(serializedFoo);
        try {
          deserializedFoo.getLazyObjectBar();
          fail();
        } catch (ExecutorException e) {
          assertTrue(e.getMessage().contains("Cannot get Configuration as configuration factory was not set."));
        }
      }
    }
  
    private byte[] serializeFoo(final LazyObjectFoo foo) throws Exception {
      try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
          ObjectOutputStream oos = new ObjectOutputStream(bos)) {
        oos.writeObject(foo);
        return bos.toByteArray();
     }
   }
 
   private LazyObjectFoo deserializeFoo(final byte[] serializedFoo) throws Exception {
     try (ByteArrayInputStream bis = new ByteArrayInputStream(serializedFoo);
         ObjectInputStream ios = new ObjectInputStream(bis)) {
       return (LazyObjectFoo) ios.readObject();
     }
   }
 
 }