Java Code Examples for com.amazonaws.services.s3.model.VersionListing#isTruncated()

The following examples show how to use com.amazonaws.services.s3.model.VersionListing#isTruncated() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: S3.java    From s3-cf-service-broker with Apache License 2.0 5 votes vote down vote up 
private void deleteAllVersions(String bucketName) {
    logger.info("Deleting all object versions from bucket '{}'", bucketName);
    VersionListing versionListing = s3.listVersions(bucketName, null);
    delete(versionListing);
    while (versionListing.isTruncated()) {
        versionListing = s3.listNextBatchOfVersions(versionListing);
        delete(versionListing);
    }
}
Example 2
Source File: AWSCommon.java    From camel-kafka-connector with Apache License 2.0 4 votes vote down vote up 
/**
 * Delete an S3 bucket using the provided client. Coming from AWS documentation:
 * https://docs.aws.amazon.com/AmazonS3/latest/dev/delete-or-empty-bucket.html#delete-bucket-sdk-java
 * @param s3Client the AmazonS3 client instance used to delete the bucket
 * @param bucketName a String containing the bucket name
 */
public static void deleteBucket(AmazonS3 s3Client, String bucketName) {
    // Delete all objects from the bucket. This is sufficient
    // for non versioned buckets. For versioned buckets, when you attempt to delete objects, Amazon S3 inserts
    // delete markers for all objects, but doesn't delete the object versions.
    // To delete objects from versioned buckets, delete all of the object versions before deleting
    // the bucket (see below for an example).
    ObjectListing objectListing = s3Client.listObjects(bucketName);
    while (true) {
        Iterator<S3ObjectSummary> objIter = objectListing.getObjectSummaries().iterator();
        while (objIter.hasNext()) {
            s3Client.deleteObject(bucketName, objIter.next().getKey());
        }

        // If the bucket contains many objects, the listObjects() call
        // might not return all of the objects in the first listing. Check to
        // see whether the listing was truncated. If so, retrieve the next page of objects
        // and delete them.
        if (objectListing.isTruncated()) {
            objectListing = s3Client.listNextBatchOfObjects(objectListing);
        } else {
            break;
        }
    }

    // Delete all object versions (required for versioned buckets).
    VersionListing versionList = s3Client.listVersions(new ListVersionsRequest().withBucketName(bucketName));
    while (true) {
        Iterator<S3VersionSummary> versionIter = versionList.getVersionSummaries().iterator();
        while (versionIter.hasNext()) {
            S3VersionSummary vs = versionIter.next();
            s3Client.deleteVersion(bucketName, vs.getKey(), vs.getVersionId());
        }

        if (versionList.isTruncated()) {
            versionList = s3Client.listNextBatchOfVersions(versionList);
        } else {
            break;
        }
    }

    // After all objects and object versions are deleted, delete the bucket.
    s3Client.deleteBucket(bucketName);
}
Example 3
Source File: S3DaoImpl.java    From herd with Apache License 2.0 4 votes vote down vote up 
@Override
public List<S3VersionSummary> listVersions(final S3FileTransferRequestParamsDto params)
{
    Assert.isTrue(!isRootKeyPrefix(params.getS3KeyPrefix()), "Listing of S3 versions from root directory is not allowed.");

    AmazonS3Client s3Client = getAmazonS3(params);
    List<S3VersionSummary> s3VersionSummaries = new ArrayList<>();

    try
    {
        ListVersionsRequest listVersionsRequest = new ListVersionsRequest().withBucketName(params.getS3BucketName()).withPrefix(params.getS3KeyPrefix());
        VersionListing versionListing;

        do
        {
            versionListing = s3Operations.listVersions(listVersionsRequest, s3Client);
            s3VersionSummaries.addAll(versionListing.getVersionSummaries());
            listVersionsRequest.setKeyMarker(versionListing.getNextKeyMarker());
            listVersionsRequest.setVersionIdMarker(versionListing.getNextVersionIdMarker());
        }
        while (versionListing.isTruncated());
    }
    catch (AmazonS3Exception amazonS3Exception)
    {
        if (S3Operations.ERROR_CODE_NO_SUCH_BUCKET.equals(amazonS3Exception.getErrorCode()))
        {
            throw new IllegalArgumentException("The specified bucket '" + params.getS3BucketName() + "' does not exist.", amazonS3Exception);
        }
        throw new IllegalStateException("Error accessing S3", amazonS3Exception);
    }
    catch (AmazonClientException e)
    {
        throw new IllegalStateException(String
            .format("Failed to list S3 versions with prefix \"%s\" from bucket \"%s\". Reason: %s", params.getS3KeyPrefix(), params.getS3BucketName(),
                e.getMessage()), e);
    }
    finally
    {
        // Shutdown the AmazonS3Client instance to release resources.
        s3Client.shutdown();
    }

    return s3VersionSummaries;
}