/*
* 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.cloudstack.spring.module.web;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import org.apache.cloudstack.spring.module.factory.CloudStackSpringContext;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.ApplicationContext;
public abstract class ModuleBasedFilter implements Filter {
boolean enabled = false;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
String module = filterConfig.getInitParameter("module");
CloudStackSpringContext context =
(CloudStackSpringContext) filterConfig.getServletContext().getAttribute(CloudStackSpringContext.CLOUDSTACK_CONTEXT_SERVLET_KEY);
if ( context == null )
return;
ApplicationContext applicationContext = context.getApplicationContextForWeb(module);
if ( applicationContext != null ) {
AutowireCapableBeanFactory factory = applicationContext.getAutowireCapableBeanFactory();
if ( factory != null ) {
factory.autowireBean(this);
enabled = true;
}
}
}
@Override
public void destroy() {
enabled = false;
}
public boolean isEnabled() {
return enabled;
}
}