com.mrbjoern.blog.api.service.s3.S3Wrapper.java Source code

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Here is the source code for com.mrbjoern.blog.api.service.s3.S3Wrapper.java

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/*
 * MIT License
 *
 * Copyright (c) 2017 Halvor Bjrn
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.mrbjoern.blog.api.service.s3;

import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.*;
import com.amazonaws.util.IOUtils;
import com.mrbjoern.blog.api.service.FileStorage;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

@Profile("production")
@Service
public class S3Wrapper implements FileStorage {

    @Autowired
    private AmazonS3Client amazonS3Client;

    private String bucket = System.getenv("S3_BUCKET");

    private PutObjectResult upload(final String filePath, final String uploadKey) throws FileNotFoundException {
        return upload(new FileInputStream(filePath), uploadKey);
    }

    private PutObjectResult upload(InputStream inputStream, final String uploadKey) {
        PutObjectRequest putObjectRequest = new PutObjectRequest(bucket, uploadKey, inputStream,
                new ObjectMetadata());
        putObjectRequest.setCannedAcl(CannedAccessControlList.PublicRead);

        PutObjectResult putObjectResult = amazonS3Client.putObject(putObjectRequest);

        return putObjectResult;
    }

    public String upload(MultipartFile multipartFile) throws IOException {
        PutObjectResult putObjectResult;
        String objectUrl;

        putObjectResult = upload(multipartFile.getInputStream(), multipartFile.getOriginalFilename());
        objectUrl = amazonS3Client.getResourceUrl(bucket, multipartFile.getOriginalFilename());

        return objectUrl;
    }

    @Override
    public byte[] download(final String key) throws IOException {
        GetObjectRequest getObjectRequest = new GetObjectRequest(bucket, key);

        S3Object s3Object = amazonS3Client.getObject(getObjectRequest);

        S3ObjectInputStream objectInputStream = s3Object.getObjectContent();

        return IOUtils.toByteArray(objectInputStream);
    }
}