Java tutorial
package apiserver.services.images.controllers.manipulations; import apiserver.MimeType; import apiserver.core.FileUploadHelper; import apiserver.core.common.ResponseEntityHelper; import apiserver.model.Document; import apiserver.services.images.gateways.images.ImageRotateGateway; import apiserver.services.images.gateways.jobs.images.FileRotateJob; import com.wordnik.swagger.annotations.Api; import com.wordnik.swagger.annotations.ApiOperation; import com.wordnik.swagger.annotations.ApiParam; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; 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.RestController; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.Map; import java.util.concurrent.ExecutionException; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; /******************************************************************************* Copyright (c) 2013 Mike Nimer. This file is part of ApiServer Project. The ApiServer Project is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The ApiServer Project is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the ApiServer Project. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ //TODO: Add ImageNegative //TODO: Add ImageOverlay //TODO: Add ImageFlip //TODO: Add ImageSharpen //TODO: Add ImageShear, ImageShearDrawingAxis //TODO: Add ImageRotateDrawingAxis //TODO: Add Image Drawing Support (array of actions; ImageDrawLine, ImageDrawOval, ImageDrawPoint, ImageDrawQuadraticCurve /** * User: mnimer * Date: 9/15/12 */ @Controller @RestController @Api(value = "/api/image", description = "[IMAGE]") @RequestMapping("/api/image") public class RotateController { @Autowired(required = false) private HttpServletRequest request; @Autowired private ImageRotateGateway imageRotateGateway; @Autowired private FileUploadHelper fileUploadHelper; private @Value("${defaultReplyTimeout}") Integer defaultTimeout; /** * rotate an image * * @param documentId * @param angle * @return */ @ApiOperation(value = "Rotate an uploaded image") @RequestMapping(value = "/modify/{documentId}/rotate.{format}", method = { RequestMethod.GET }) @ResponseBody public ResponseEntity<byte[]> rotateImageByImage( @ApiParam(name = "documentId", required = true, defaultValue = "8D981024-A297-4169-8603-E503CC38EEDA") @PathVariable(value = "documentId") String documentId, @ApiParam(name = "angle", required = true, defaultValue = "90") @RequestParam(required = true, defaultValue = "90") Integer angle, @ApiParam(name = "format", required = true, defaultValue = "jpg") @PathVariable(value = "format") String format ) throws IOException, InterruptedException, ExecutionException, TimeoutException { String _contentType = MimeType.getMimeType(format).contentType; if (!MimeType.getMimeType(format).isSupportedImage()) { return new ResponseEntity<byte[]>(HttpStatus.UNSUPPORTED_MEDIA_TYPE); } FileRotateJob job = new FileRotateJob(); job.setDocumentId(documentId); job.setAngle(angle); Future<Map> imageFuture = imageRotateGateway.rotateImage(job); FileRotateJob payload = (FileRotateJob) imageFuture.get(defaultTimeout, TimeUnit.MILLISECONDS); ResponseEntity<byte[]> result = ResponseEntityHelper.processImage(payload.getBufferedImage(), _contentType, false); return result; } /** * rotate an image * * @param file * @param angle * @return */ @ApiOperation(value = "Rotate an uploaded image") @RequestMapping(value = "/modify/rotate", method = { RequestMethod.POST }) @ResponseBody public ResponseEntity<byte[]> rotateImageByImage(HttpServletRequest request, HttpServletResponse response, @ApiParam(name = "file", required = true) @RequestParam(value = "file", required = false) MultipartFile file, @ApiParam(name = "angle", required = true, defaultValue = "90") @RequestParam(required = true, defaultValue = "90") Integer angle, @ApiParam(name = "format", required = false) @RequestParam(value = "format", required = false) String format ) throws IOException, InterruptedException, ExecutionException, TimeoutException { Document _file = null; MimeType _outputMimeType = null; String _outputContentType = null; MultipartFile _mFile = fileUploadHelper.getFileFromRequest(file, request); _file = new Document(_mFile); _outputMimeType = fileUploadHelper.getOutputFileFormat(format, _file.getContentType()); _outputContentType = _outputMimeType.contentType; if (!_file.getContentType().isSupportedImage() || !_outputMimeType.isSupportedImage()) { return new ResponseEntity<>(HttpStatus.UNSUPPORTED_MEDIA_TYPE); } FileRotateJob job = new FileRotateJob(); job.setDocumentId(null); job.setDocument(_file); //job.getDocument().setContentType( MimeType.getMimeType(file.getContentType()) ); //job.getDocument().setFileName(file.getOriginalFilename()); job.setAngle(angle); job.setFormat(format); Future<Map> imageFuture = imageRotateGateway.rotateImage(job); FileRotateJob payload = (FileRotateJob) imageFuture.get(defaultTimeout, TimeUnit.MILLISECONDS); //pass CF Response back to the client return payload.getHttpResponse(); } }