com.chinalbs.service.impl.FileServiceImpl.java Source code

Introduction

Here is the source code for com.chinalbs.service.impl.FileServiceImpl.java

Source

package com.chinalbs.service.impl;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import com.chinalbs.service.FileService;
import com.chinalbs.utils.ImageUtils;

@Service("fileServiceImpl")
public class FileServiceImpl implements FileService {

    private static final String DEST_EXTENSION = "jpg";

    @Value("${ImageUploadPath}")
    private String uploadPath;
    @Value("${ImageMaxSize}")
    private Integer ImageMaxSize;

    @Value("${LicenseImageWidth}")
    private Integer licenseImageWidth;
    @Value("${LicenseImageHeight}")
    private Integer licenseImageHeight;

    @Override
    public String saveImage(MultipartFile[] multipartFile) {
        String webPath = null;
        if (multipartFile == null || multipartFile.length == 0) {
            return null;
        }
        try {
            for (MultipartFile multiFile : multipartFile) {
                if (multiFile.getSize() > ImageMaxSize) {
                    continue;
                }
                String uuid = UUID.randomUUID().toString();
                String sourcePath = uploadPath + File.separator + "src_" + uuid + "."
                        + FilenameUtils.getExtension(multiFile.getOriginalFilename());
                //            webPath = uuid + "." + DEST_EXTENSION;
                webPath = File.separator + "src_" + uuid + "."
                        + FilenameUtils.getExtension(multiFile.getOriginalFilename());
                String storePath = uploadPath + File.separator + uuid + "." + DEST_EXTENSION;
                ;

                File tempFile = new File(System.getProperty("java.io.tmpdir") + File.separator + "upload_"
                        + UUID.randomUUID() + ".tmp");
                if (!tempFile.getParentFile().exists()) {
                    tempFile.getParentFile().mkdirs();
                }

                multiFile.transferTo(tempFile);
                proccessImage(tempFile, sourcePath, storePath, licenseImageWidth, licenseImageHeight, true);
            }
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return webPath;
    }

    private void proccessImage(File tempFile, String sourcePath, String resizedPath, Integer width, Integer height,
            boolean moveSource) {
        String tempPath = System.getProperty("java.io.tmpdir");
        File resizedFile = new File(
                tempPath + File.pathSeparator + "upload_" + UUID.randomUUID() + "." + DEST_EXTENSION);
        ImageUtils.zoom(tempFile, resizedFile, width, height);

        File destFile = new File(resizedPath);
        try {
            if (moveSource) {
                File destSrcFile = new File(sourcePath);
                FileUtils.moveFile(tempFile, destSrcFile);
            }
            FileUtils.moveFile(resizedFile, destFile);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}