Examples with CosClientException com.qcloud.cos.exception.CosClientException used on opensource projects

Example 81 with CosClientException

use of com.qcloud.cos.exception.CosClientException in project cos-java-sdk-v5 by tencentyun.

the class MultipartUploadDemo method listPartDemo.

// list part用于获取已上传的分片, 如果已上传的分片数量较多, 需要循环多次调用list part获取已上传的所有的分片
public static List<PartETag> listPartDemo(String uploadId) {
    // 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-guangzhou"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    // bucket名需包含appid
    String bucketName = "mybucket-1251668577";
    String key = "aaa/bbb.txt";
    // uploadid(通过initiateMultipartUpload或者ListMultipartUploads获取)
    // 用于保存已上传的分片信息
    List<PartETag> partETags = new LinkedList<>();
    PartListing partListing = null;
    ListPartsRequest listPartsRequest = new ListPartsRequest(bucketName, key, uploadId);
    do {
        try {
            partListing = cosclient.listParts(listPartsRequest);
        } catch (CosServiceException e) {
            throw e;
        } catch (CosClientException e) {
            throw e;
        }
        for (PartSummary partSummary : partListing.getParts()) {
            partETags.add(new PartETag(partSummary.getPartNumber(), partSummary.getETag()));
        }
        listPartsRequest.setPartNumberMarker(partListing.getNextPartNumberMarker());
    } while (partListing.isTruncated());
    cosclient.shutdown();
    return partETags;
}

Example 82 with CosClientException

use of com.qcloud.cos.exception.CosClientException in project cos-java-sdk-v5 by tencentyun.

the class MultipartUploadDemo method abortPartUploadDemo.

// 终止分块上传
public static void abortPartUploadDemo(String uploadId) {
    // 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-guangzhou"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    // bucket名需包含appid
    String bucketName = "mybucket-1251668577";
    String key = "aaa/bbb.txt";
    // uploadid(通过initiateMultipartUpload或者ListMultipartUploads获取)
    AbortMultipartUploadRequest abortMultipartUploadRequest = new AbortMultipartUploadRequest(bucketName, key, uploadId);
    try {
        cosclient.abortMultipartUpload(abortMultipartUploadRequest);
    } catch (CosServiceException e) {
        e.printStackTrace();
    } catch (CosClientException e) {
        e.printStackTrace();
    }
    cosclient.shutdown();
}

Example 83 with CosClientException

use of com.qcloud.cos.exception.CosClientException in project simpleFS by shengdingbox.

the class QCloudOssApiClient method fileList.

@Override
public List<VirtualFile> fileList(FileListRequesr fileListRequesr) {
    List<VirtualFile> virtualFiles = new ArrayList<>();
    // 指定返回结果使用URL编码，则您需要对结果中的prefix、delemiter、startAfter、key和commonPrefix进行URL解码。
    ObjectListing objectListing = null;
    do {
        ListObjectsRequest listObjectsRequest = new ListObjectsRequest();
        // 设置 bucket 名称
        listObjectsRequest.setBucketName(bucketName);
        // 设置列出的对象名以 prefix 为前缀
        listObjectsRequest.setPrefix(fileListRequesr.getPrefix());
        // 设置最大列出多少个对象, 一次 listobject 最大支持1000
        listObjectsRequest.setMaxKeys(fileListRequesr.getSize());
        try {
            objectListing = cosClient.listObjects(listObjectsRequest);
        } catch (CosClientException e) {
            e.printStackTrace();
        }
        // 文件名称解码。
        for (COSObjectSummary s : objectListing.getObjectSummaries()) {
            String decodedKey = null;
            try {
                decodedKey = URLDecoder.decode(s.getKey(), "UTF-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            VirtualFile virtualFile = VirtualFile.builder().originalFileName(decodedKey).suffix(this.suffix).uploadStartTime(s.getLastModified()).uploadEndTime(s.getLastModified()).filePath(this.newFileName).size(s.getSize()).fileHash(s.getETag()).fullFilePath(decodedKey).build();
            virtualFiles.add(virtualFile);
        }
        String nextContinuationToken = objectListing.getNextMarker();
    } while (objectListing.isTruncated());
    // 确认本进程不再使用 cosClient 实例之后，关闭之
    cosClient.shutdown();
    return virtualFiles;
}

Example 84 with CosClientException

use of com.qcloud.cos.exception.CosClientException in project cos-java-sdk-v5 by tencentyun.

the class COSCryptoModuleAE method adjustToDesiredRange.

/**
 * Adjusts the retrieved COSObject so that the object contents contain only the range of bytes
 * desired by the user. Since encrypted contents can only be retrieved in CIPHER_BLOCK_SIZE (16
 * bytes) chunks, the COSObject potentially contains more bytes than desired, so this method
 * adjusts the contents range.
 *
 * @param cosObject The COSObject retrieved from COS that could possibly contain more bytes than
 *        desired by the user.
 * @param range A two-element array of longs corresponding to the start and finish (inclusive)
 *        of a desired range of bytes.
 * @param instruction Instruction file in JSON or null if no instruction file is involved
 * @return The COSObject with adjusted object contents containing only the range desired by the
 *         user. If the range specified is invalid, then the COSObject is returned without any
 *         modifications.
 */
protected final COSObjectWrapper adjustToDesiredRange(COSObjectWrapper cosObject, long[] range, Map<String, String> instruction) {
    if (range == null)
        return cosObject;
    // Figure out the original encryption scheme used, which can be
    // different from the crypto scheme used for decryption.
    ContentCryptoScheme encryptionScheme = cosObject.encryptionSchemeOf(instruction);
    // range get on data encrypted using AES_GCM
    final long instanceLen = cosObject.getObjectMetadata().getInstanceLength();
    final long maxOffset = instanceLen - encryptionScheme.getTagLengthInBits() / 8 - 1;
    if (range[1] > maxOffset) {
        range[1] = maxOffset;
        if (range[0] > range[1]) {
            // Return empty content
            // First let's close the existing input stream to avoid resource
            // leakage
            IOUtils.closeQuietly(cosObject.getObjectContent(), log);
            cosObject.setObjectContent(new ByteArrayInputStream(new byte[0]));
            return cosObject;
        }
    }
    if (range[0] > range[1]) {
        // Make no modifications if range is invalid.
        return cosObject;
    }
    try {
        COSObjectInputStream objectContent = cosObject.getObjectContent();
        InputStream adjustedRangeContents = new AdjustedRangeInputStream(objectContent, range[0], range[1]);
        cosObject.setObjectContent(new COSObjectInputStream(adjustedRangeContents, objectContent.getHttpRequest()));
        return cosObject;
    } catch (IOException e) {
        throw new CosClientException("Error adjusting output to desired byte range: " + e.getMessage());
    }
}

Example 85 with CosClientException

use of com.qcloud.cos.exception.CosClientException in project cos-java-sdk-v5 by tencentyun.

the class COSCryptoModuleAE method decipherWithInstFileSuffix.

/**
 * Same as {@link #decipher(GetObjectRequest, long[], long[], COSObject)} but makes use of an
 * instruction file with the specified suffix.
 *
 * @param instFileSuffix never null or empty (which is assumed to have been sanitized upstream.)
 */
private COSObject decipherWithInstFileSuffix(GetObjectRequest req, long[] desiredRange, long[] cryptoRange, COSObject retrieved, String instFileSuffix) {
    final COSObjectId id = req.getCOSObjectId();
    // Check if encrypted info is in an instruction file
    final COSObjectWrapper ifile = fetchInstructionFile(id, instFileSuffix);
    if (ifile == null) {
        throw new CosClientException("Instruction file with suffix " + instFileSuffix + " is not found for " + retrieved);
    }
    try {
        return decipherWithInstructionFile(req, desiredRange, cryptoRange, new COSObjectWrapper(retrieved, id), ifile);
    } finally {
        IOUtils.closeQuietly(ifile, log);
    }
}