/*
|
* 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.Filter;
|
import javax.servlet.FilterConfig;
|
import javax.servlet.ServletContext;
|
import javax.servlet.ServletException;
|
|
import dagger.ObjectGraph;
|
|
/**
|
* Uses Dagger to manually inject dependencies into a servlet filter.
|
* This class is useful for servlet containers that offer CDI and are
|
* confused by Dagger.
|
*
|
* @author James Moger
|
*
|
*/
|
public abstract class DaggerFilter implements Filter {
|
|
@Override
|
public final void init(FilterConfig filterConfig) throws ServletException {
|
ServletContext context = filterConfig.getServletContext();
|
ObjectGraph objectGraph = (ObjectGraph) context.getAttribute(DaggerContext.INJECTOR_NAME);
|
inject(objectGraph, filterConfig);
|
}
|
|
protected abstract void inject(ObjectGraph dagger, FilterConfig filterConfig) throws ServletException;
|
|
@Override
|
public void destroy() {
|
}
|
}
|
