Java tutorial
/** Copyright 2013 Intel Corporation, All Rights Reserved. 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 com.intel.cosbench.controller.handler; import java.io.InputStream; import java.util.List; import javax.servlet.http.*; import org.apache.commons.fileupload.*; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import com.intel.cosbench.config.XmlConfig; import com.intel.cosbench.service.ControllerService; import com.intel.cosbench.web.BadRequestException; public class ConfigHandler extends AbstractClientHandler { private ControllerService controller; public void setController(ControllerService controller) { this.controller = controller; } @Override protected String process(HttpServletRequest req, HttpServletResponse res) throws Exception { InputStream stream = retrieveConfigStream(req); String id = controller.submit(new XmlConfig(stream)); controller.fire(id); return "Accepted with ID: " + id; } @SuppressWarnings("unchecked") private InputStream retrieveConfigStream(HttpServletRequest request) throws Exception { FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); for (FileItem item : (List<FileItem>) upload.parseRequest(request)) if (item.getFieldName().equals("config")) return item.getInputStream(); throw new BadRequestException(); } }