org.codenergic.theskeleton.gallery.impl.GalleryServiceImpl.java Source code

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Here is the source code for org.codenergic.theskeleton.gallery.impl.GalleryServiceImpl.java

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/*
 * Copyright 2017 the original author or authors.
 *
 * 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 org.codenergic.theskeleton.gallery.impl;

import io.minio.MinioClient;
import io.minio.errors.*;
import org.apache.commons.lang3.StringUtils;
import org.codenergic.theskeleton.gallery.GalleryEntity;
import org.codenergic.theskeleton.gallery.GalleryRepository;
import org.codenergic.theskeleton.gallery.GalleryService;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.time.Instant;
import java.util.UUID;

@Service
@Transactional(readOnly = true)
public class GalleryServiceImpl implements GalleryService {
    private static final String GALLERY_BUCKET_NAME = "galleries";
    private final GalleryRepository galleryRepository;
    private final MinioClient minioClient;

    public GalleryServiceImpl(GalleryRepository galleryRepository, MinioClient minioClient) {
        this.galleryRepository = galleryRepository;
        this.minioClient = minioClient;
    }

    @Override
    @Transactional
    public void deleteImages(String userId, String... imagesId) {
        for (String imageId : imagesId) {
            galleryRepository.delete(imageId);
        }
    }

    @Override
    public Page<GalleryEntity> findImageByUser(String userId, Pageable pageable) {
        return galleryRepository.findByCreatedByUserIdOrderByIdDesc(userId, pageable);
    }

    @Override
    @Transactional
    public GalleryEntity saveImage(String userId, GalleryEntity image) throws Exception {
        String imageObjectName = saveImageToS3(userId, image);
        image.setImageUrl(imageObjectName);
        return galleryRepository.save(image);
    }

    private String saveImageToS3(String userId, GalleryEntity image)
            throws InvalidBucketNameException, NoSuchAlgorithmException, InsufficientDataException, IOException,
            InvalidKeyException, NoResponseException, XmlPullParserException, ErrorResponseException,
            InternalException, InvalidArgumentException {
        String imageObjectName = StringUtils.join(userId, "/", Long.toHexString(Instant.now().toEpochMilli()), "-",
                UUID.randomUUID().toString());
        minioClient.putObject(GALLERY_BUCKET_NAME, imageObjectName, image.getImage(), image.getFormat());
        return minioClient.getObjectUrl(GALLERY_BUCKET_NAME, imageObjectName);
    }
}