Example usage for com.amazonaws.services.s3.model ObjectListing getDelimiter

Introduction

In this page you can find the example usage for com.amazonaws.services.s3.model ObjectListing getDelimiter.

Prototype

public String getDelimiter() 

Source Link

Document

Gets the delimiter parameter originally used to request this object listing, or null if no delimiter specified.

Usage

From source file:com.eucalyptus.objectstorage.providers.s3.S3ProviderClient.java

License:Open Source License

@Override
public ListBucketResponseType listBucket(ListBucketType request) throws S3Exception {
    ListBucketResponseType reply = request.getReply();
    User requestUser = getRequestUser(request);
    OsgInternalS3Client internalS3Client = null;
    try {/*from   w  w  w.j  a  va  2  s  .  c  o  m*/
        internalS3Client = getS3Client(requestUser);
        AmazonS3Client s3Client = internalS3Client.getS3Client();
        ListObjectsRequest listRequest = new ListObjectsRequest();
        listRequest.setBucketName(request.getBucket());
        listRequest.setDelimiter(Strings.isNullOrEmpty(request.getDelimiter()) ? null : request.getDelimiter());
        listRequest.setMarker(Strings.isNullOrEmpty(request.getMarker()) ? null : request.getMarker());
        listRequest.setMaxKeys((request.getMaxKeys() == null ? null : Integer.parseInt(request.getMaxKeys())));
        listRequest.setPrefix(Strings.isNullOrEmpty(request.getPrefix()) ? null : request.getPrefix());

        ObjectListing response = s3Client.listObjects(listRequest);

        /* Non-optional, must have non-null values */
        reply.setName(request.getBucket());
        reply.setMaxKeys(response.getMaxKeys());
        reply.setMarker(response.getMarker() == null ? "" : response.getMarker());
        reply.setPrefix(response.getPrefix() == null ? "" : response.getPrefix());
        reply.setIsTruncated(response.isTruncated());

        /* Optional */
        reply.setNextMarker(response.getNextMarker());
        reply.setDelimiter(response.getDelimiter());
        if (reply.getContents() == null) {
            reply.setContents(new ArrayList<ListEntry>());
        }
        if (reply.getCommonPrefixesList() == null) {
            reply.setCommonPrefixesList(new ArrayList<CommonPrefixesEntry>());
        }

        for (S3ObjectSummary obj : response.getObjectSummaries()) {
            //Add entry, note that the canonical user is set based on requesting user, not returned user
            reply.getContents()
                    .add(new ListEntry(obj.getKey(),
                            DateFormatter.dateToHeaderFormattedString(obj.getLastModified()), obj.getETag(),
                            obj.getSize(), getCanonicalUser(requestUser), obj.getStorageClass()));
        }

        if (response.getCommonPrefixes() != null && response.getCommonPrefixes().size() > 0) {
            reply.setCommonPrefixesList(new ArrayList<CommonPrefixesEntry>());

            for (String s : response.getCommonPrefixes()) {
                reply.getCommonPrefixesList().add(new CommonPrefixesEntry(s));
            }
        }

        return reply;
    } catch (AmazonServiceException e) {
        LOG.debug("Error from backend", e);
        throw S3ExceptionMapper.fromAWSJavaSDK(e);
    }
}

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From source file:com.upplication.s3fs.util.AmazonS3ClientMock.java

License:Open Source License

@Override
public ObjectListing listNextBatchOfObjects(ObjectListing previousObjectListing) {

    ObjectListing objectListing = new ObjectListing();
    objectListing.setBucketName(previousObjectListing.getBucketName());
    objectListing.setPrefix(previousObjectListing.getPrefix());
    objectListing.setMarker(previousObjectListing.getMarker());
    objectListing.setDelimiter(previousObjectListing.getDelimiter());

    if (!previousObjectListing.isTruncated() || previousObjectListing.getNextMarker() == null) {
        return objectListing;
    }/*  www .  j  a va 2 s  . c  o  m*/

    Bucket bucket = find(previousObjectListing.getBucketName());
    Iterator<S3Element> iterator = objects.get(bucket).iterator();

    int i = 0;
    boolean continueElement = false;

    while (iterator.hasNext()) {

        S3Element elem = iterator.next();

        if (!continueElement && elem.getS3Object().getKey().equals(previousObjectListing.getNextMarker())) {
            continueElement = true;
        }

        if (continueElement) {
            // TODO. add delimiter and marker support
            if (previousObjectListing.getPrefix() != null
                    && elem.getS3Object().getKey().startsWith(previousObjectListing.getPrefix())) {

                S3ObjectSummary s3ObjectSummary = parseToS3ObjectSummary(elem);
                objectListing.getObjectSummaries().add(s3ObjectSummary);
                // max 1000 elements at same time.
                if (i + 1 == LIMIT_AWS_MAX_ELEMENTS && iterator.hasNext()) {
                    objectListing.setTruncated(true);
                    objectListing.setNextMarker(iterator.next().getS3Object().getKey());
                    return objectListing;
                } else {
                    objectListing.setTruncated(false);
                }

                i++;
            }
        }
    }

    return objectListing;
}

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