Examples with ObjectMetadata com.qcloud.cos.model.ObjectMetadata used on opensource projects

Example 1 with ObjectMetadata

use of com.qcloud.cos.model.ObjectMetadata in project alluxio by Alluxio.

the class COSUnderFileSystem method createEmptyObject.

@Override
public boolean createEmptyObject(String key) {
    try {
        ObjectMetadata objMeta = new ObjectMetadata();
        objMeta.setContentLength(0);
        mClient.putObject(mBucketNameInternal, key, new ByteArrayInputStream(new byte[0]), objMeta);
        return true;
    } catch (CosClientException e) {
        LOG.error("Failed to create object: {}", key, e);
        return false;
    }
}

Example 2 with ObjectMetadata

use of com.qcloud.cos.model.ObjectMetadata in project jeesuite-libs by vakinge.

the class QcloudProvider method getObjectMetadata.

@Override
public CObjectMetadata getObjectMetadata(String bucketName, String fileKey) {
    try {
        String _bucketName = buildBucketName(bucketName);
        String _fileKey = resolveFileKey(bucketName, fileKey);
        ObjectMetadata metadata = cosclient.getObjectMetadata(_bucketName, _fileKey);
        CObjectMetadata objectMetadata = new CObjectMetadata();
        objectMetadata.setCreateTime(metadata.getLastModified());
        objectMetadata.setMimeType(metadata.getContentType());
        objectMetadata.setFilesize(metadata.getContentLength());
        objectMetadata.setHash(metadata.getContentMD5());
        objectMetadata.setExpirationTime(metadata.getExpirationTime());
        objectMetadata.setCustomMetadatas(metadata.getUserMetadata());
        return objectMetadata;
    } catch (Exception e) {
        throw new JeesuiteBaseException(500, buildMessage(bucketName, e));
    }
}

Example 3 with ObjectMetadata

use of com.qcloud.cos.model.ObjectMetadata in project accright-blog by Accright.

the class COSApi method uploadFileToCOS.

/**
 * 使用文件流上传文件至COS
 * @param file
 * @return
 */
public String uploadFileToCOS(MultipartFile file) throws IOException {
    // 获取上传文件的名称用于获取后缀
    String fileName = file.getOriginalFilename();
    // 获取文件的后缀
    String prex = fileName.substring(fileName.lastIndexOf("."));
    // 设置文件的key
    String key = System.currentTimeMillis() + prex;
    // 获取文件输入流
    InputStream inputStream = file.getInputStream();
    // 获取文件元信息
    ObjectMetadata objectMetadata = new ObjectMetadata();
    // 设置输入流长度为 500
    objectMetadata.setContentLength(file.getSize());
    // 设置 Content type, 默认是 application/octet-stream
    objectMetadata.setContentType(file.getContentType());
    PutObjectResult putObjectResult = cosclient.putObject(bucketName, key, inputStream, objectMetadata);
    // 关闭输入流
    inputStream.close();
    // 设置过期时间   ---可以返回带有过期时间的URL
    // Date expiration = new Date(new Date().getTime() + 30L * 60L * 1000L);
    // URL urlx = cosclient.generatePresignedUrl(bucketName, key, expiration,HttpMethodName.GET);
    // return urlx.toString();
    // 关闭客户端
    cosclient.shutdown();
    // 返回URL
    return BUCKET_URL + key;
}

Example 4 with ObjectMetadata

use of com.qcloud.cos.model.ObjectMetadata in project cos-java-sdk-v5 by tencentyun.

the class CopyFileDemo method copyWithNewMetaDataDemo.

public static void copyWithNewMetaDataDemo() {
    // 1 初始化用户身份信息(secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
    // 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    ExecutorService threadPool = Executors.newFixedThreadPool(32);
    // 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
    TransferManager transferManager = new TransferManager(cosclient, threadPool);
    // 要拷贝的bucket region, 支持跨园区拷贝
    Region srcBucketRegion = new Region("ap-shanghai");
    // 源bucket, bucket名需包含appid
    String srcBucketName = "srcBucket-1251668577";
    // 要拷贝的源文件
    String srcKey = "aaa/bbb.txt";
    // 目的bucket, bucket名需包含appid
    String destBucketName = "destBucket-1251668577";
    // 要拷贝的目的文件
    String destKey = "ccc/ddd.txt";
    ClientConfig srcClientConfig = new ClientConfig(srcBucketRegion);
    COSClient srcCosclient = new COSClient(cred, srcClientConfig);
    GetObjectRequest getReq = new GetObjectRequest(srcBucketName, srcKey);
    File srcFile = new File("srcFile");
    srcCosclient.getObject(getReq, srcFile);
    String srcMD5 = "";
    try {
        srcMD5 = Md5Utils.md5Hex(srcFile);
    } catch (Exception e) {
        e.printStackTrace();
    }
    ObjectMetadata destMeta = new ObjectMetadata();
    destMeta.addUserMetadata("md5", srcMD5);
    CopyObjectRequest copyObjectRequest = new CopyObjectRequest(srcBucketRegion, srcBucketName, srcKey, destBucketName, destKey);
    copyObjectRequest.setNewObjectMetadata(destMeta);
    try {
        CopyObjectResult copyObjectResult = cosclient.copyObject(copyObjectRequest);
        System.out.print(copyObjectResult.getRequestId());
    } catch (CosServiceException e) {
        e.printStackTrace();
    } catch (CosClientException e) {
        e.printStackTrace();
    }
    cosclient.shutdown();
}

Example 5 with ObjectMetadata

use of com.qcloud.cos.model.ObjectMetadata in project cos-java-sdk-v5 by tencentyun.

the class GetObjectDemo method GetObjectToFileDemo.

public static void GetObjectToFileDemo() {
    // 初始化用户身份信息(secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
    // 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
    // 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    String key = "test/my_test.json";
    String bucketName = "mybucket-1251668577";
    boolean useTrafficLimit = false;
    GetObjectRequest getObjectRequest = new GetObjectRequest(bucketName, key);
    if (useTrafficLimit) {
        getObjectRequest.setTrafficLimit(8 * 1024 * 1024);
    }
    File localFile = new File("my_test.json");
    ObjectMetadata objectMetadata = cosclient.getObject(getObjectRequest, localFile);
    System.out.println(objectMetadata.getContentLength());
}