Java tutorial
/** * Copyright (C) 2011 ArtiVisi Intermedia <info@artivisi.com> * * 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.artivisi.belajar.restful.ui.controller; import java.io.File; import java.net.URI; import java.security.MessageDigest; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.UUID; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.stereotype.Controller; import org.springframework.util.StringUtils; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; 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; import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.util.UriTemplate; import com.artivisi.belajar.restful.domain.ApplicationConfig; import com.artivisi.belajar.restful.service.BelajarRestfulService; import com.google.common.io.Files; import javax.validation.Valid; import org.springframework.data.domain.Pageable; @Controller public class ApplicationConfigController { private static final String ESC_CHAR_TITIK = "\\."; private static final long UKURAN_FILE_CV = 51987l; private static final long UKURAN_FILE_FOTO = 583738l; @Autowired private BelajarRestfulService belajarRestfulService; private Logger logger = LoggerFactory.getLogger(this.getClass()); @RequestMapping("/config/{id}/files") @ResponseBody public Map<String, String> uploadFiles(@PathVariable String id, @RequestParam String keterangan, @RequestParam MultipartFile cv, @RequestParam MultipartFile foto) throws Exception { ApplicationConfig config = belajarRestfulService.findApplicationConfigById(id); if (config == null) { throw new IllegalStateException(); } Map<String, String> result = new HashMap<String, String>(); logger.info("CV => Content-Type : {}, Filename : {}, Size : {}", new Object[] { cv.getContentType(), cv.getOriginalFilename(), cv.getSize() }); logger.info("Foto => Content-Type : {}, Filename : {}, Size : {}", new Object[] { foto.getContentType(), foto.getOriginalFilename(), foto.getSize() }); File cvTarget = File.createTempFile(cv.getOriginalFilename().split(ESC_CHAR_TITIK)[0], "." + cv.getOriginalFilename().split(ESC_CHAR_TITIK)[1]); File fotoTarget = File.createTempFile(foto.getOriginalFilename().split(ESC_CHAR_TITIK)[0], "." + foto.getOriginalFilename().split(ESC_CHAR_TITIK)[1]); cv.transferTo(cvTarget); foto.transferTo(fotoTarget); logger.info("CV disimpan ke {}", cvTarget.getAbsolutePath()); logger.info("Foto disimpan ke {}", fotoTarget.getAbsolutePath()); if (cv.getSize() == UKURAN_FILE_CV) { result.put("cv", "success"); } else { result.put("cv", "error size"); } if (foto.getSize() == UKURAN_FILE_FOTO) { result.put("foto", "success"); } else { result.put("foto", "error size"); } if ("File Endy".equals(keterangan)) { result.put("keterangan", "success"); } else { result.put("keterangan", "salah content"); } return result; } @RequestMapping("/config/{id}") @ResponseBody public ApplicationConfig findApplicationConfigById(@PathVariable String id) { ApplicationConfig config = belajarRestfulService.findApplicationConfigById(id); if (config == null) { throw new IllegalStateException(); } return config; } @RequestMapping(value = "/config", method = RequestMethod.POST) @ResponseStatus(HttpStatus.CREATED) public void create(@RequestBody @Valid ApplicationConfig config, HttpServletRequest request, HttpServletResponse response) { belajarRestfulService.save(config); String requestUrl = request.getRequestURL().toString(); URI uri = new UriTemplate("{requestUrl}/{id}").expand(requestUrl, config.getId()); response.setHeader("Location", uri.toASCIIString()); } @RequestMapping(method = RequestMethod.PUT, value = "/config/{id}") @ResponseStatus(HttpStatus.OK) public void update(@PathVariable String id, @RequestBody @Valid ApplicationConfig config) { ApplicationConfig a = belajarRestfulService.findApplicationConfigById(id); if (a == null) { logger.warn("Config dengan id [{}] tidak ditemukan", id); throw new IllegalStateException(); } config.setId(a.getId()); belajarRestfulService.save(config); } @RequestMapping(method = RequestMethod.DELETE, value = "/config/{id}") @ResponseStatus(HttpStatus.OK) public void delete(@PathVariable String id) { ApplicationConfig a = belajarRestfulService.findApplicationConfigById(id); if (a == null) { logger.warn("Config dengan id [{}] tidak ditemukan", id); throw new IllegalStateException(); } belajarRestfulService.delete(a); } @RequestMapping(value = "/config", method = RequestMethod.GET) @ResponseBody public List<ApplicationConfig> findAll(@RequestParam(required = false) String search, Pageable pageable, HttpServletResponse response) { if (StringUtils.hasText(search)) { return belajarRestfulService.findApplicationConfigs(search, pageable).getContent(); } else { return belajarRestfulService.findAllApplicationConfigs(pageable).getContent(); } } @RequestMapping(value = "/config/upload", method = RequestMethod.POST) @ResponseBody public List<Map<String, String>> testUpload( @RequestParam(value = "uploadedfiles[]") List<MultipartFile> daftarFoto) throws Exception { logger.debug("Jumlah file yang diupload {}", daftarFoto.size()); List<Map<String, String>> hasil = new ArrayList<Map<String, String>>(); for (MultipartFile multipartFile : daftarFoto) { logger.debug("Nama File : {}", multipartFile.getName()); logger.debug("Nama File Original : {}", multipartFile.getOriginalFilename()); logger.debug("Ukuran File : {}", multipartFile.getSize()); Map<String, String> keterangan = new HashMap<String, String>(); keterangan.put("Nama File", multipartFile.getOriginalFilename()); keterangan.put("Ukuran File", Long.valueOf(multipartFile.getSize()).toString()); keterangan.put("Content Type", multipartFile.getContentType()); keterangan.put("UUID", UUID.randomUUID().toString()); File temp = File.createTempFile("xxx", "xxx"); multipartFile.transferTo(temp); keterangan.put("MD5", createMD5Sum(temp)); hasil.add(keterangan); } return hasil; } private String createMD5Sum(File file) throws Exception { byte[] checksum = Files.getDigest(file, MessageDigest.getInstance("MD5")); StringBuffer result = new StringBuffer(); for (int i = 0; i < checksum.length; i++) { result.append(Integer.toString((checksum[i] & 0xff) + 0x100, 16).substring(1)); } return result.toString(); } @ResponseStatus(HttpStatus.NOT_FOUND) @ExceptionHandler({ IllegalStateException.class }) public void handle() { logger.debug("Konfig dengan nama tersebut tidak ditemukan"); } }