/*
    * 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.commons.proxy2.serialization;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.io.Serializable;
  
  import org.apache.commons.lang3.SerializationException;
  import org.apache.commons.lang3.SerializationUtils;
  import org.apache.commons.proxy2.ProxyFactory;
  import org.apache.commons.proxy2.interceptor.InterceptorUtils;
  import org.apache.commons.proxy2.interceptor.SwitchInterceptor;
  import org.apache.commons.proxy2.interceptor.matcher.invocation.DeclaredByMatcher;
  import org.apache.commons.proxy2.AbstractProxyFactoryAgnosticTest;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  
  public class SerializationProxyTest extends AbstractProxyFactoryAgnosticTest
  {
      public static class NonSerializableStringWrapper
      {
          private final String value;
  
          NonSerializableStringWrapper(String value)
          {
              this.value = value;
          }
  
          public String getValue()
          {
              return value;
          }
      }
  
      public interface Provider
      {
          NonSerializableStringWrapper getObject();
      }
  
      private static final ThreadLocal<ProxyFactory> PROXY_FACTORY = new ThreadLocal<ProxyFactory>();
  
      private static SwitchInterceptor implementProvider(String value)
      {
          return new SwitchInterceptor().when(new DeclaredByMatcher(Provider.class)).then(
                  InterceptorUtils.constant(new NonSerializableStringWrapper(value)));
      }
  
      private static Provider serializableProvider(final String value)
      {
          return PROXY_FACTORY.get().createInterceptorProxy(
                  null,
                  implementProvider(value).when(new DeclaredByMatcher(WriteReplace.class)).then(
                          InterceptorUtils.constant(new ReadResolve()
                          {
                              private static final long serialVersionUID = 1L;
  
                              @Override
                              public Object readResolve()
                              {
                                  return serializableProvider(value);
                              }
                          })), Provider.class, WriteReplace.class);
      }
  
      @Before
      public void captureProxyFactory()
      {
          PROXY_FACTORY.set(proxyFactory);
      }
  
      @After
      public void clearProxyFactory()
      {
          PROXY_FACTORY.remove();
      }
  
      @Test(expected = SerializationException.class)
      public void testNaive()
      {
          final Provider proxy = proxyFactory.createInterceptorProxy(null, implementProvider("foo"), Provider.class,
                  Serializable.class);
          assertEquals("foo", proxy.getObject().getValue());
         assertTrue(Serializable.class.isInstance(proxy));
         SerializationUtils.roundtrip((Serializable) proxy);
     }
 
     @Test
     public void testSerializationProxy()
     {
         final Provider proxy = serializableProvider("foo");
         assertEquals("foo", proxy.getObject().getValue());
         assertTrue(Serializable.class.isInstance(proxy));
         final Provider proxy2 = (Provider) SerializationUtils.roundtrip((Serializable) proxy);
         assertEquals("foo", proxy2.getObject().getValue());
     }
 }