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//
// ========================================================================
// Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.webapp;
import org.eclipse.jetty.util.Loader;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.resource.Resource;
/**
* DiscoveredAnnotation
*
* Represents an annotation that has been discovered
* by scanning source code of WEB-INF/classes and WEB-INF/lib jars.
*
*/
public abstract class DiscoveredAnnotation
{
private static final Logger LOG = Log.getLogger(DiscoveredAnnotation.class);
protected WebAppContext _context;
protected String _className;
protected Class<?> _clazz;
protected Resource _resource; //resource it was discovered on, can be null (eg from WEB-INF/classes)
public abstract void apply();
public DiscoveredAnnotation (WebAppContext context, String className)
{
this(context,className, null);
}
public DiscoveredAnnotation(WebAppContext context, String className, Resource resource)
{
_context = context;
_className = className;
_resource = resource;
}
public Resource getResource ()
{
return _resource;
}
public Class<?> getTargetClass()
{
if (_clazz != null)
return _clazz;
loadClass();
return _clazz;
}
private void loadClass ()
{
if (_clazz != null)
return;
if (_className == null)
return;
try
{
_clazz = Loader.loadClass(null, _className);
}
catch (Exception e)
{
LOG.warn(e);
}
}
}
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