@Override
public String convertImgUrl(int size, String imgUrl) {
try {
List<AppboxImg> appboxImgList = appboxImgDao.findByProperty("imgUrl", imgUrl);
if (appboxImgList.isEmpty()) {
// imgUrl is "" or not exists in the appboxImg table
return "";
}
String relativePath = "";
switch (size) {
case 0:
relativePath = appboxImgList.get(0).getTinyPath();
break;
case 1:
relativePath = appboxImgList.get(0).getMiddlePath();
break;
default:
// TODO expand later
relativePath = appboxImgList.get(0).getOriginPath();
}
return relativePath;
} catch (DataAccessException dse) {
log.error(dse.toString());
throw new ServiceException("DataAccessException", dse);
}
}
/**
* verify whether the image has been stored.
*
* @param imgUrl
* @return
*/
private boolean checkImgUrl(String imgUrl) {
if (imgUrl.equals("")) {
return true;
}
// TODO optimize this by adding 'limit 1'
List<AppboxImg> appboxImgList = appboxImgDao.findByProperty("imgUrl", imgUrl);
if (appboxImgList.isEmpty()) {
return false;
} else {
return true;
}
}
private void storeImg(String url) {
// 计算文件名前缀
String fileNamePrefix =
url.substring(0, url.length() - 3)
.replaceAll("http://", "")
.replaceAll("\\.", "")
.replaceAll("/", "");
// 计算上传路径
String outputPath = "";
try {
Calendar calendar = Calendar.getInstance();
outputPath =
ServerConfig.get("file_save_path")
+ File.separator
+ calendar.get(Calendar.YEAR)
+ File.separator
+ calendar.get(Calendar.MONTH)
+ File.separator
+ calendar.get(Calendar.DAY_OF_MONTH)
+ File.separator
+ calendar.get(Calendar.HOUR_OF_DAY)
+ File.separator;
File file = new File(ServerConfig.get("real_root_path") + outputPath);
file.mkdirs();
log.info(file.toString());
} catch (Exception e) {
log.error("can't create output path");
return;
}
try {
String filePath = ServerConfig.get("real_root_path") + outputPath + fileNamePrefix;
BufferedImage originalImage = ImageIO.read(new URL(url));
// set image file storage path
// TODO
ImageIO.write(originalImage, "jpg", new File(filePath + ".jpg"));
// start to scale the image
ImageResizer imageResizer = new ImageResizer();
imageResizer.setWidth(110);
imageResizer.setHeight((int) (110 * originalImage.getHeight() / originalImage.getWidth()));
imageResizer.setOriginalImage(originalImage);
imageResizer.execute();
BufferedImage resizedImage = imageResizer.getResizedImage();
ImageIO.write(resizedImage, "jpg", new File(filePath + "0.jpg"));
// imageResizer = new ImageResizer();
imageResizer.setWidth(210);
imageResizer.setHeight((int) (210 * originalImage.getHeight() / originalImage.getWidth()));
imageResizer.setOriginalImage(originalImage);
imageResizer.execute();
resizedImage = imageResizer.getResizedImage();
ImageIO.write(resizedImage, "jpg", new File(filePath + "1.jpg"));
// key step
AppboxImg appboxImg = new AppboxImg();
appboxImg.setImgUrl(url);
appboxImg.setOriginPath(outputPath + fileNamePrefix + ".jpg");
appboxImg.setTinyPath(outputPath + fileNamePrefix + "0.jpg");
appboxImg.setMiddlePath(outputPath + fileNamePrefix + "1.jpg");
appboxImgDao.save(appboxImg);
} catch (IOException e) {
log.error("fetch image file failed");
return;
}
return;
}