Java tutorial
/** * The MIT License * Copyright (c) 2014 Nick Guletskii * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package org.ng200.openolympus.controller.api; import java.io.File; import java.io.IOException; import java.nio.charset.Charset; import java.text.MessageFormat; import org.ng200.openolympus.Assertions; import org.ng200.openolympus.FileAccess; import org.ng200.openolympus.StorageSpace; import org.ng200.openolympus.controller.task.TaskUploader; import org.ng200.openolympus.model.Task; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; @Controller public class TaskDescriptionSourcecodeController { @RequestMapping(value = "/api/taskSourcecode", method = RequestMethod.GET) public @ResponseBody ResponseEntity<String> getTaskSourcecode(@RequestParam(value = "id") final Task task) throws IOException { Assertions.resourceExists(task); final String descriptionPath = MessageFormat.format(TaskUploader.TASK_DESCRIPTION_PATH_TEMPLATE, StorageSpace.STORAGE_PREFIX, task.getTaskLocation()); final File descriptionFile = new File(descriptionPath); HttpHeaders responseHeaders = new HttpHeaders(); Charset charset = Charset.forName("UTF-8"); responseHeaders.setContentType(new MediaType("text", "plain", charset)); return new ResponseEntity<String>(new String(FileAccess.readAllBytes(descriptionFile), charset), responseHeaders, HttpStatus.OK); } }