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

The following examples show how to use com.amazonaws.services.s3.model.VersionListing#getVersionSummaries() . 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: ObjectsOnS3.java    From cantor with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
private boolean deleteObject(final String bucket, final String key) {
    this.s3Client.deleteObject(bucket, key);
    final VersionListing versionList = this.s3Client.listVersions(bucket, key);
    for (final S3VersionSummary summary : versionList.getVersionSummaries()) {
        logger.debug("deleting version {}", summary.getKey());
        this.s3Client.deleteVersion(bucket, summary.getKey(), summary.getVersionId());
    }

    return true;
}
Example 2
Source File: ListS3.java    From localization_nifi with Apache License 2.0 4 votes vote down vote up 
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) {
    try {
        restoreState(context);
    } catch (IOException ioe) {
        getLogger().error("Failed to restore processor state; yielding", ioe);
        context.yield();
        return;
    }

    final long startNanos = System.nanoTime();
    final String bucket = context.getProperty(BUCKET).evaluateAttributeExpressions().getValue();

    final AmazonS3 client = getClient();
    int listCount = 0;
    long maxTimestamp = 0L;
    String delimiter = context.getProperty(DELIMITER).getValue();
    String prefix = context.getProperty(PREFIX).evaluateAttributeExpressions().getValue();

    boolean useVersions = context.getProperty(USE_VERSIONS).asBoolean();

    S3BucketLister bucketLister = useVersions
            ? new S3VersionBucketLister(client)
            : new S3ObjectBucketLister(client);

    bucketLister.setBucketName(bucket);

    if (delimiter != null && !delimiter.isEmpty()) {
        bucketLister.setDelimiter(delimiter);
    }
    if (prefix != null && !prefix.isEmpty()) {
        bucketLister.setPrefix(prefix);
    }

    VersionListing versionListing;
    do {
        versionListing = bucketLister.listVersions();
        for (S3VersionSummary versionSummary : versionListing.getVersionSummaries()) {
            long lastModified = versionSummary.getLastModified().getTime();
            if (lastModified < currentTimestamp
                    || lastModified == currentTimestamp && currentKeys.contains(versionSummary.getKey())) {
                continue;
            }

            // Create the attributes
            final Map<String, String> attributes = new HashMap<>();
            attributes.put(CoreAttributes.FILENAME.key(), versionSummary.getKey());
            attributes.put("s3.bucket", versionSummary.getBucketName());
            if (versionSummary.getOwner() != null) { // We may not have permission to read the owner
                attributes.put("s3.owner", versionSummary.getOwner().getId());
            }
            attributes.put("s3.etag", versionSummary.getETag());
            attributes.put("s3.lastModified", String.valueOf(lastModified));
            attributes.put("s3.length", String.valueOf(versionSummary.getSize()));
            attributes.put("s3.storeClass", versionSummary.getStorageClass());
            attributes.put("s3.isLatest", String.valueOf(versionSummary.isLatest()));
            if (versionSummary.getVersionId() != null) {
                attributes.put("s3.version", versionSummary.getVersionId());
            }

            // Create the flowfile
            FlowFile flowFile = session.create();
            flowFile = session.putAllAttributes(flowFile, attributes);
            session.transfer(flowFile, REL_SUCCESS);

            // Update state
            if (lastModified > maxTimestamp) {
                maxTimestamp = lastModified;
                currentKeys.clear();
            }
            if (lastModified == maxTimestamp) {
                currentKeys.add(versionSummary.getKey());
            }
            listCount++;
        }
        bucketLister.setNextMarker();

        commit(context, session, listCount);
        listCount = 0;
    } while (bucketLister.isTruncated());
    currentTimestamp = maxTimestamp;

    final long listMillis = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNanos);
    getLogger().info("Successfully listed S3 bucket {} in {} millis", new Object[]{bucket, listMillis});

    if (!commit(context, session, listCount)) {
        if (currentTimestamp > 0) {
            persistState(context);
        }
        getLogger().debug("No new objects in S3 bucket {} to list. Yielding.", new Object[]{bucket});
        context.yield();
    }
}
Example 3
Source File: S3.java    From s3-cf-service-broker with Apache License 2.0 4 votes vote down vote up 
private void delete(VersionListing versionListing) {
    for (S3VersionSummary versionSummary : versionListing.getVersionSummaries()) {
        s3.deleteVersion(versionSummary.getBucketName(), versionSummary.getKey(), versionSummary.getVersionId());
    }
}