org.primefaces.model.NativeUploadedFile Maven / Gradle / Ivy
/*
* 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.model;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import javax.faces.FacesException;
import javax.servlet.http.Part;
public class NativeUploadedFile implements UploadedFile, Serializable {
private static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
private Part part;
private String filename;
private byte[] cachedContent;
public NativeUploadedFile() {}
public NativeUploadedFile(Part part) {
this.part = part;
this.filename = resolveFilename(part);
}
public String getFileName() {
return filename;
}
public InputStream getInputstream() throws IOException {
return part.getInputStream();
}
public long getSize() {
return part.getSize();
}
public byte[] getContents() {
if (cachedContent != null) {
return cachedContent;
}
InputStream input = null;
try {
input = getInputstream();
ByteArrayOutputStream output = new ByteArrayOutputStream();
byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
int n = 0;
while (-1 != (n = input.read(buffer))) {
output.write(buffer, 0, n);
}
cachedContent = output.toByteArray();
}
catch (IOException ex) {
cachedContent = null;
throw new FacesException(ex);
}
finally {
if (input != null) {
try {
input.close();
}
catch (IOException ex) {
}
}
}
return cachedContent;
}
public String getContentType() {
return part.getContentType();
}
private String resolveFilename(Part part) {
for (String cd : part.getHeader("content-disposition").split(";")) {
if (cd.trim().startsWith("filename")) {
return cd.substring(cd.indexOf('=') + 1).trim().replace("\"", "");
}
}
return null;
}
public void write(String filePath) throws Exception {
part.write(filePath);
}
public Part getPart() {
return part;
}
}