/*
* 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.wicket.serialize.java;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.NotSerializableException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.Serializable;
import org.apache.wicket.WicketRuntimeException;
import org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream;
import org.apache.wicket.core.util.objects.checker.IObjectChecker;
import org.apache.wicket.core.util.objects.checker.NotDetachedModelChecker;
import org.apache.wicket.markup.html.WebComponent;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.LoadableDetachableModel;
import org.apache.wicket.util.io.IOUtils;
import org.apache.wicket.util.tester.WicketTestCase;
import org.junit.Test;
/**
*
*/
public class JavaSerializerTest extends WicketTestCase
{
/**
* https://issues.apache.org/jira/browse/WICKET-4812
*
* Tests that the serialization fails when a checking ObjectOutputStream is
* used with NotDetachedModelChecker and there is a non-detached LoadableDetachableModel
* in the object tree.
*/
@Test
public void notDetachedModel()
{
JavaSerializer serializer = new JavaSerializer("JavaSerializerTest")
{
@Override
protected ObjectOutputStream newObjectOutputStream(OutputStream out) throws IOException
{
IObjectChecker checker = new NotDetachedModelChecker();
return new CheckingObjectOutputStream(out, checker);
}
};
IModel<String> model = new NotDetachedModel();
model.getObject();
WebComponent component = new WebComponent("id", model);
byte[] serialized = serializer.serialize(component);
assertNull("The produced byte[] must be null if there was an error", serialized);
}
/**
* A Model used for #notDetachedModel() test
*/
private static class NotDetachedModel extends LoadableDetachableModel<String>
{
@Override
protected String load()
{
return "loaded";
}
}
/**
* https://issues.apache.org/jira/browse/WICKET-4812
*
* Tests that serialization fails when using the default ObjectOutputStream in
* JavaSerializer and some object in the tree is not Serializable
*/
@Test
public void notSerializable()
{
JavaSerializer serializer = new JavaSerializer("JavaSerializerTest");
WebComponent component = new NotSerializableComponent("id");
byte[] serialized = serializer.serialize(component);
assertNull("The produced byte[] must be null if there was an error", serialized);
}
private static class NotSerializableComponent extends WebComponent
{
private final NotSerializableObject member = new NotSerializableObject();
public NotSerializableComponent(final String id)
{
super(id);
}
}
private static class NotSerializableObject {}
@Test
public void normal()
{
JavaSerializer serializer = new JavaSerializer("JavaSerializerTest-normal") {
@Override
protected ObjectOutputStream newObjectOutputStream(OutputStream out) throws IOException
{
return new CheckingObjectOutputStream(out);
}
};
byte[] bytes = serializer.serialize("Something to serialize");
assertEquals(57, bytes.length);
}
/**
* https://issues.apache.org/jira/browse/WICKET-5667
*/
@Test
public void preserveTheOriginalException()
{
JavaSerializer serializer = new JavaSerializer("JavaSerializerTest-aa")
{
// Override serialize to re-throw the exception instead of just logging it
// The exception is used later to make the assertions
@Override
public byte[] serialize(Object object)
{
try
{
final ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectOutputStream oos = null;
try
{
oos = newObjectOutputStream(out);
oos.writeObject("applicationKey");
oos.writeObject(object);
}
finally
{
try
{
IOUtils.close(oos);
}
finally
{
out.close();
}
}
return out.toByteArray();
}
catch (Exception x)
{
throw new RuntimeException(x);
}
}
};
try
{
serializer.serialize(new ObjectThatBlowsOnSerialization());
fail("The serialization should have failed!");
}
catch (Exception x)
{
Throwable cause0 = x.getCause();
assertThat(cause0, is(instanceOf(WicketRuntimeException.class)));
WicketRuntimeException wrx = (WicketRuntimeException) cause0;
Throwable cause1 = wrx.getCause();
assertThat(cause1, is(instanceOf(IllegalStateException.class)));
assertThat(cause1.getMessage(), is(equalTo("Cannot serialize me twice!")));
Throwable cause2 = cause1.getCause();
assertThat(cause2, is(instanceOf(NotSerializableException.class)));
}
}
private static class ObjectThatBlowsOnSerialization implements Serializable
{
private int counter = 0;
private void writeObject(ObjectOutputStream oos) throws IOException
{
counter++;
if (counter == 1)
{
throw new NotSerializableException();
}
throw new IllegalStateException("Cannot serialize me twice!");
}
}
}