/*
*
* Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
* one or more contributor license agreements (see COPYRIGHT for details).
* The CA licenses this file to you under the GNU Affero General Public
* License version 3, (the "License"); you may not use this file except in
* compliance with the License. This file is part of kune.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package cc.kune.core.server.rack.filters;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import cc.kune.core.server.rack.RackServletFilter;
import com.google.inject.Injector;
public abstract class AbstractInjectedFilter implements Filter {
protected ServletContext ctx;
@Override
public abstract void destroy();
private Injector getInjector() {
return (Injector) ctx.getAttribute(RackServletFilter.INJECTOR_ATTRIBUTE);
}
public <T> T getInstance(final Class<T> type) {
return getInjector().getInstance(type);
}
@Override
public void init(final FilterConfig filterConfig) throws ServletException {
this.ctx = filterConfig.getServletContext();
getInjector().injectMembers(this);
}
}