org.flowable.common.rest.multipart.PutAwareStandardServletMultiPartResolver Maven / Gradle / Ivy
/* 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 org.flowable.common.rest.multipart;
import javax.servlet.http.HttpServletRequest;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.support.StandardServletMultipartResolver;
/**
* {@link org.springframework.web.multipart.MultipartResolver} that allows using PUT for multipart/form
*
* @author Filip Hrisafov
*/
public class PutAwareStandardServletMultiPartResolver extends StandardServletMultipartResolver {
@Override
public boolean isMultipart(HttpServletRequest request) {
return request != null && isMultipartContent(request);
}
/**
* Utility method that determines whether the request contains multipart content.
*
* @param request
* The servlet request to be evaluated. Must be non-null.
* @return true if the request is multipart; {@code false} otherwise.
* @see org.apache.commons.fileupload.servlet.ServletFileUpload#isMultipartContent(HttpServletRequest)
*/
public static final boolean isMultipartContent(HttpServletRequest request) {
final String method = request.getMethod().toLowerCase();
if (!"post".equalsIgnoreCase(method) && !"put".equalsIgnoreCase(method)) {
return false;
}
String contentType = request.getContentType();
return StringUtils.startsWithIgnoreCase(contentType, "multipart/");
}
}