/*
* Copyright 2013 gitblit.com.
*
* 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 com.gitblit.dagger;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import org.apache.wicket.protocol.http.WicketFilter;
import dagger.ObjectGraph;
/**
* Uses Dagger to manually inject dependencies into a Wicket filter.
* This class is useful for servlet containers that offer CDI and are
* confused by Dagger.
*
* @author James Moger
*
*/
public abstract class DaggerWicketFilter extends WicketFilter {
@Override
public final void init(FilterConfig filterConfig) throws ServletException {
ServletContext context = filterConfig.getServletContext();
ObjectGraph objectGraph = (ObjectGraph) context.getAttribute(DaggerContext.INJECTOR_NAME);
inject(objectGraph);
super.init(filterConfig);
}
protected abstract void inject(ObjectGraph dagger);
}