org.apache.myfaces.shared_tomahawk.util.MyFacesObjectInputStream Maven / Gradle / Ivy
/*
* 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.myfaces.shared_tomahawk.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.lang.reflect.Proxy;
/**
* Tried to deploy v0.4.2 on JBoss 3.2.1 and had a classloading problem again.
* The problem seemed to be with JspInfo, line 98. We are using an
* ObjectInputStream Class, which then cannot find the classes to deserialize
* the input stream. The solution appears to be to subclass ObjectInputStream
* (eg. CustomInputStream), and specify a different class-loading mechanism.
*
* @author Robert Gothan (latest modification by $Author: lu4242 $)
* @version $Revision: 1386954 $ $Date: 2012-09-18 01:48:52 +0000 (Tue, 18 Sep 2012) $
*/
public class MyFacesObjectInputStream
extends ObjectInputStream
{
public MyFacesObjectInputStream(InputStream in) throws IOException
{
super(in);
}
protected Class resolveClass(ObjectStreamClass desc)
throws ClassNotFoundException, IOException
{
try
{
return ClassUtils.classForName(desc.getName());
}
catch (ClassNotFoundException e)
{
return super.resolveClass(desc);
}
}
protected Class resolveProxyClass(String[] interfaces)
throws IOException, ClassNotFoundException
{
// Only option that would match the current code would be to
// expand ClassLoaderExtension to handle 'getProxyClass', which
// would break all existing ClassLoaderExtension implementations
Class[] cinterfaces = new Class[interfaces.length];
for (int i = 0; i < interfaces.length; i++)
{
cinterfaces[i] = ClassUtils.classForName(interfaces[i]);
}
try
{
// Try WebApp ClassLoader first
return Proxy.getProxyClass(ClassUtils.getContextClassLoader(), cinterfaces);
}
catch (Exception ex)
{
// fallback: Try ClassLoader for MyFacesObjectInputStream (i.e. the myfaces.jar lib)
try
{
return Proxy.getProxyClass(
MyFacesObjectInputStream.class.getClassLoader(), cinterfaces);
}
catch (IllegalArgumentException e)
{
throw new ClassNotFoundException(e.toString(), e);
}
}
}
}