/*
 * Copyright 2009 Kantega AS
 *
 * 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 no.kantega.commons.filter;

import org.springframework.web.multipart.support.MultipartFilter;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.context.WebApplicationContext;

import javax.servlet.http.HttpServletRequest;

/**
 * This filter overrides MultipartFilter's lookupMultipartResolver method to
 * return a default CommmonsMultipartResolver if the root webapplication context is
 * not found. We needed to add this in order to run setup code behind the filter.
 * Setup code is run before the root webapplication context is started. 
 */
public class NoSpringContextCapableMultipartFilter extends MultipartFilter {
    @Override
    protected MultipartResolver lookupMultipartResolver(HttpServletRequest request) {
        final WebApplicationContext wac = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
        if(wac != null) {
            return (MultipartResolver) wac.getBean(getMultipartResolverBeanName(), MultipartResolver.class);
        } else {
            return new CommonsMultipartResolver(getServletContext());
        }
    }
}

/*
 * Copyright 2009 Kantega AS
 *
 * 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 no.kantega.commons.filter;

import org.springframework.web.multipart.support.MultipartFilter;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.context.WebApplicationContext;
import org.apache.log4j.Logger;
import org.apache.log4j.Level;

import javax.servlet.http.HttpServletRequest;

/**
 * This filter overrides MultipartFilter's lookupMultipartResolver method to
 * return a default CommmonsMultipartResolver if the root webapplication context is
 * not found. We needed to add this in order to run setup code behind the filter.
 * Setup code is run before the root webapplication context is started. 
 */
public class NoSpringContextCapableMultipartFilter extends MultipartFilter {
    public NoSpringContextCapableMultipartFilter() {
        super();
        Logger.getLogger(getClass()).setLevel(Level.INFO);
    }

    @Override
    protected MultipartResolver lookupMultipartResolver(HttpServletRequest request) {
        final WebApplicationContext wac = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
        if(wac != null) {
            return (MultipartResolver) wac.getBean(getMultipartResolverBeanName(), MultipartResolver.class);
        } else {
            return new CommonsMultipartResolver(getServletContext());
        }
    }
}

Set log level to INFO to reduce log noise