Examples of com.amazonaws.services.s3.model.GetObjectRequest

com.amazonaws.services.s3.model.GetObjectRequest
Provides options for downloading an Amazon S3 object.

All GetObjectRequests must specify a bucket name and key. Beyond that, requests can also specify:
- The range of bytes within the object to download,
- Constraints controlling if the object will be downloaded or not.
@see GetObjectRequest#GetObjectRequest(String,String) @see GetObjectRequest#GetObjectRequest(String,String,String) @see GetObjectMetadataRequest

        return downloadTo0(destination, requestMetricCollector);
    }


    private ObjectMetadata downloadTo0(final File destination,
            RequestMetricCollector requestMetricCollector) {
        GetObjectRequest req = new GetObjectRequest(getBucketName(), getKey())
                .withRequestMetricCollector(requestMetricCollector);
        return getAmazonS3Client().getObject(req, destination);
    }

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        return downloadTo0(output, requestMetricCollector);
    }


    private ObjectMetadata downloadTo0(final OutputStream output,
            RequestMetricCollector requestMetricCollector) {
        GetObjectRequest req = new GetObjectRequest(getBucketName(), getKey())
            .withRequestMetricCollector(requestMetricCollector);
        S3Object s3Object = getAmazonS3Client().getObject(req);
        S3ObjectInputStream objectContent = s3Object.getObjectContent();


        try {

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             * GetObjectRequest also supports several other options, including
             * conditional downloading of objects based on modification times,
             * ETags, and selectively downloading a range of an object.
             */
            System.out.println("Downloading an object");
            S3Object object = s3.getObject(new GetObjectRequest(bucketName, key));
            System.out.println("Content-Type: "  + object.getObjectMetadata().getContentType());
            displayTextInputStream(object.getObjectContent());


            /*
             * List objects in your bucket by prefix - There are many options for

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     * @throws AmazonServiceException
     *             If any errors occurred in Amazon S3 while processing the
     *             request.
     */
    public Download download(String bucket, String key, File file) {
        return download(new GetObjectRequest(bucket, key), file);
    }

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            // All the single-file downloads share the same
            // MultipleFileTransferProgressUpdatingListener and
            // MultipleFileTransferStateChangeListener
            downloads.add((DownloadImpl) doDownload(
                            new GetObjectRequest(summary.getBucketName(),
                                    summary.getKey())
                                    .<GetObjectRequest>withGeneralProgressListener(
                                            listener),
                            f,
                            transferListener, null, false));

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     *             request.
     */
    public Download resumeDownload(PersistableDownload persistableDownload) {
        assertParameterNotNull(persistableDownload,
                "PausedDownload is mandatory to resume a download.");
        GetObjectRequest request = new GetObjectRequest(
                persistableDownload.getBucketName(), persistableDownload.getKey(),
                persistableDownload.getVersionId());
        if (persistableDownload.getRange() != null
                && persistableDownload.getRange().length == 2) {
            long[] range = persistableDownload.getRange();
            request.setRange(range[0], range[1]);
        }
        request.setRequesterPays(persistableDownload.isRequesterPays());
        request.setResponseHeaders(persistableDownload.getResponseHeaders());


        return doDownload(request, new File(persistableDownload.getFile()), null, null,
                APPEND_MODE);
    }

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    /* (non-Javadoc)
     * @see com.amazonaws.services.s3.AmazonS3#getObject(java.lang.String, java.lang.String)
     */
    public S3Object getObject(String bucketName, String key)
            throws AmazonClientException, AmazonServiceException {
        return getObject(new GetObjectRequest(bucketName, key));
    }

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    private static boolean skipContentMd5IntegrityCheck(AmazonWebServiceRequest request) {
        if (request instanceof GetObjectRequest) {
            if (System.getProperty("com.amazonaws.services.s3.disableGetObjectMD5Validation") != null)
                return true;


            GetObjectRequest getObjectRequest = (GetObjectRequest)request;
            // Skip MD5 check for range get
            if (getObjectRequest.getRange() != null)
                return true;
            if (getObjectRequest.getSSECustomerKey() != null)
                return true;
        } else if (request instanceof PutObjectRequest) {
            PutObjectRequest putObjectRequest = (PutObjectRequest)request;
            return putObjectRequest.getSSECustomerKey() != null
                    || putObjectRequest.getSSEAwsKeyManagementParams() != null;

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    @Override
    public final PutObjectResult putInstructionFileSecurely(
            PutInstructionFileRequest req) {
        final S3ObjectId id = req.getS3ObjectId();
        final GetObjectRequest getreq = new GetObjectRequest(id);
        appendUserAgent(getreq, USER_AGENT);
        // Get the object from S3
        final S3Object retrieved = s3.getObject(getreq);
        // We only need the meta-data already retrieved, not the data stream.
        // So close it immediately to prevent resource leakage.

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     *            suffix of the specific instruction file to be used, or null if
     *            the default instruction file is to be used.
     */
    final GetObjectRequest createInstructionGetRequest(
            S3ObjectId s3objectId, String instFileSuffix) {
        return new GetObjectRequest(
                s3objectId.instructionFileId(instFileSuffix));
    }

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