SlingMultipartResolver.java

/**
 * Copyright 2013 the original author or authors.
 * 
 * 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 io.neba.core.mvc;

import org.apache.sling.api.SlingHttpServletRequest;
import org.springframework.web.multipart.MultipartException;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.MultipartResolver;

import javax.servlet.http.HttpServletRequest;

import static org.apache.commons.fileupload.servlet.ServletFileUpload.isMultipartContent;

/**
 * @author Olaf Otto
 */
public class SlingMultipartResolver implements MultipartResolver {

	@Override
	public boolean isMultipart(HttpServletRequest request) {
		return request != null && isMultipartContent(request);
	}

	@Override
	public MultipartHttpServletRequest resolveMultipart(HttpServletRequest request) throws MultipartException {
	    if (request == null) {
	        throw new IllegalArgumentException("Method argument request must not be null.");
	    }
	    if (!(request instanceof SlingHttpServletRequest)) {
	        throw new IllegalArgumentException("Method argument request must be a " + 
	        		SlingHttpServletRequest.class + ", but is a " + request.getClass() + ".");
	    }
		return new MultipartSlingHttpServletRequest((SlingHttpServletRequest) request);
	}

	@Override
	public void cleanupMultipart(MultipartHttpServletRequest request) {
		// This is done by sling.
	}

}