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MultiPartConsumer.java
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MultiPartConsumer.java
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package net.saga.ajugbook.util;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import javax.ejb.Stateless;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import net.saga.ajugbook.vo.Image;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.beanutils.BeanUtilsBean2;
import org.apache.commons.beanutils.ConvertUtils;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.jboss.aerogear.controller.router.AeroGearException;
import org.jboss.aerogear.controller.router.Consumer;
/**
*
* @author Summers
*/
@Stateless
public class MultiPartConsumer implements Consumer {
@Override
public String mediaType() {
return "multipart/form-data";
}
@Override
public <T> T unmarshall(HttpServletRequest request, Class<T> type) {
try {
T object = type.newInstance();
// Create a factory for disk-based file items
DiskFileItemFactory factory = new DiskFileItemFactory();
File repository = (File) request.getServletContext().getAttribute("javax.servlet.context.tempdir");
factory.setRepository(repository);
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// Parse the request
List<FileItem> items = upload.parseRequest(request);
for (FileItem item : items) {
String fieldName = item.getFieldName();
Boolean field = PropertyUtils.isWriteable(object, fieldName);
if (field) {
Class fieldClass = PropertyUtils.getPropertyType(object, fieldName);
if (item.isFormField()) {
Object itemValue = ConvertUtils.convert(item.getString(), fieldClass);
BeanUtils.setProperty(object, fieldName, itemValue);
} else if (item.getSize() > 0) {
if (FileItem.class.isAssignableFrom(fieldClass)) {
BeanUtils.setProperty(object, fieldName, item);
} else if (byte[].class.isAssignableFrom(fieldClass)) {
BeanUtils.setProperty(object, fieldName, item.get());
} else if (Image.class.isAssignableFrom(fieldClass)) {
Image image = new Image();
image.setType(item.getContentType());
BufferedImage itemImage = ImageIO.read(item.getInputStream());
ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(itemImage, image.getType().split("/")[1] /* for instance */, out);
byte []imageBytes = out.toByteArray();
image.setImageData(imageBytes);
BeanUtils.setProperty(object, fieldName, image);
} else if (InputStream.class.isAssignableFrom(fieldClass)) {
BeanUtils.setProperty(object, fieldName, item.getInputStream());
}
}
}
}
return object;
} catch (NoSuchMethodException | IOException | InvocationTargetException | InstantiationException | IllegalAccessException | FileUploadException e) {
throw new AeroGearException(e);
}
}
}