/*
* Copyright 2009-2014 PrimeTek.
*
* 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.primefaces.component.fileupload;
import javax.faces.context.FacesContext;
import javax.servlet.ServletRequestWrapper;
import org.apache.commons.fileupload.FileItem;
import org.primefaces.event.FileUploadEvent;
import org.primefaces.model.DefaultUploadedFile;
import org.primefaces.webapp.MultipartRequest;
public class CommonsFileUploadDecoder{
public static void decode(FacesContext context, FileUpload fileUpload) {
MultipartRequest multipartRequest = null;
Object request = context.getExternalContext().getRequest();
while(request instanceof ServletRequestWrapper) {
if(request instanceof MultipartRequest) {
multipartRequest = (MultipartRequest) request;
break;
}
else {
request = ((ServletRequestWrapper) request).getRequest();
}
}
if(multipartRequest != null) {
if(fileUpload.getMode().equals("simple")) {
decodeSimple(context, fileUpload, multipartRequest);
}
else {
decodeAdvanced(context, fileUpload, multipartRequest);
}
}
}
private static void decodeSimple(FacesContext context, FileUpload fileUpload, MultipartRequest request) {
FileItem file = request.getFileItem(fileUpload.getSimpleInputDecodeId(context));
if(file != null) {
if(file.getName().equals("")) {
fileUpload.setSubmittedValue("");
} else {
fileUpload.setTransient(true);
fileUpload.setSubmittedValue(new DefaultUploadedFile(file));
}
}
}
private static void decodeAdvanced(FacesContext context, FileUpload fileUpload, MultipartRequest request) {
String clientId = fileUpload.getClientId(context);
FileItem file = request.getFileItem(clientId);
if(file != null) {
fileUpload.setTransient(true);
fileUpload.queueEvent(new FileUploadEvent(fileUpload, new DefaultUploadedFile(file)));
}
}
}