/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.jena.fuseki.server;
import java.io.IOException ;
import java.io.InputStream ;
import javax.servlet.http.HttpServlet ;
import javax.servlet.http.HttpServletRequest ;
import javax.servlet.http.HttpServletResponse ;
import org.apache.commons.fileupload.FileItemIterator ;
import org.apache.commons.fileupload.FileItemStream ;
import org.apache.commons.fileupload.servlet.ServletFileUpload ;
import org.apache.commons.fileupload.util.Streams ;
import org.apache.jena.fuseki.http.HttpSC ;
import org.openjena.atlas.lib.Sink ;
import org.openjena.riot.RiotReader ;
import org.openjena.riot.lang.LangRIOT ;
import org.openjena.riot.out.SinkTripleOutput ;
import com.hp.hpl.jena.graph.Triple ;
public class FileUpload extends HttpServlet
{
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException
{
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if ( ! isMultipart )
{
response.sendError(HttpSC.BAD_REQUEST_400 , "Not a file upload") ;
return ;
}
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload();
try {
// Parse the request
FileItemIterator iter = upload.getItemIterator(request);
while (iter.hasNext()) {
FileItemStream item = iter.next();
String name = item.getFieldName();
InputStream stream = item.openStream();
if (item.isFormField()) {
System.out.println("Form field " + name + " with value "
+ Streams.asString(stream) + " detected.");
} else {
System.out.println("File field " + name + " with file name "
+ item.getName() + " detected.");
// Process the input stream
response.setContentType("text/plain") ;
Sink<Triple> sink = new SinkTripleOutput(response.getOutputStream()) ;
LangRIOT parser = RiotReader.createParserTurtle(stream, null, sink) ;
parser.parse() ;
response.getOutputStream().println("----------------------") ;
}
}
} catch (Exception ex)
{
ex.printStackTrace(System.err) ;
response.sendError(HttpSC.INTERNAL_SERVER_ERROR_500, ex.getMessage()) ;
return ;
}
}
}