List of usage examples for com.amazonaws.services.s3.model S3VersionSummary getETag
public String getETag()
From source file:com.emc.ecs.sync.util.AwsS3Util.java
License:Open Source License
public static ListIterator<S3ObjectVersion> listVersions(SyncPlugin parentPlugin, AmazonS3 s3, String bucket, String key, String relativePath) { List<S3ObjectVersion> versions = new ArrayList<>(); VersionListing listing = null;/* w ww . ja v a 2 s .com*/ do { if (listing == null) listing = s3.listVersions(bucket, key, null, null, "/", null); else listing = s3.listNextBatchOfVersions(listing); for (S3VersionSummary summary : listing.getVersionSummaries()) { if (summary.getKey().equals(key)) { versions.add(new S3ObjectVersion(parentPlugin, s3, bucket, key, summary.getVersionId(), summary.isLatest(), summary.isDeleteMarker(), summary.getLastModified(), summary.getETag(), relativePath, summary.getSize())); } } } while (listing.isTruncated()); // sort chronologically Collections.sort(versions, new VersionComparator()); return versions.listIterator(); }
From source file:com.eucalyptus.objectstorage.providers.s3.S3ProviderClient.java
License:Open Source License
@Override public ListVersionsResponseType listVersions(ListVersionsType request) throws S3Exception { ListVersionsResponseType reply = request.getReply(); User requestUser = getRequestUser(request); OsgInternalS3Client internalS3Client = null; try {//from www . j av a2s. c o m internalS3Client = getS3Client(requestUser); AmazonS3Client s3Client = internalS3Client.getS3Client(); ListVersionsRequest listVersionsRequest = new ListVersionsRequest(request.getBucket(), request.getPrefix(), request.getKeyMarker(), request.getVersionIdMarker(), request.getDelimiter(), Integer.parseInt(request.getMaxKeys())); VersionListing result = s3Client.listVersions(listVersionsRequest); CanonicalUser owner; try { owner = AclUtils.buildCanonicalUser(requestUser.getAccount()); } catch (AuthException e) { LOG.error("Error getting request user's account during bucket version listing", e); owner = null; throw new AccountProblemException("Account for user " + requestUser.getUserId()); } //Populate result to euca reply.setBucket(request.getBucket()); reply.setMaxKeys(result.getMaxKeys()); reply.setDelimiter(result.getDelimiter()); reply.setNextKeyMarker(result.getNextKeyMarker()); reply.setNextVersionIdMarker(result.getNextVersionIdMarker()); reply.setIsTruncated(result.isTruncated()); reply.setVersionIdMarker(result.getVersionIdMarker()); reply.setKeyMarker(result.getKeyMarker()); if (result.getCommonPrefixes() != null && result.getCommonPrefixes().size() > 0) { reply.setCommonPrefixesList(new ArrayList<CommonPrefixesEntry>()); for (String s : result.getCommonPrefixes()) { reply.getCommonPrefixesList().add(new CommonPrefixesEntry(s)); } } ArrayList<KeyEntry> versions = new ArrayList<>(); VersionEntry v; DeleteMarkerEntry d; for (S3VersionSummary summary : result.getVersionSummaries()) { if (!summary.isDeleteMarker()) { v = new VersionEntry(); v.setKey(summary.getKey()); v.setVersionId(summary.getVersionId()); v.setLastModified(DateFormatter.dateToHeaderFormattedString(summary.getLastModified())); v.setEtag(summary.getETag()); v.setIsLatest(summary.isLatest()); v.setOwner(owner); v.setSize(summary.getSize()); versions.add(v); } else { d = new DeleteMarkerEntry(); d.setIsLatest(summary.isLatest()); d.setKey(summary.getKey()); d.setLastModified(DateFormatter.dateToHeaderFormattedString(summary.getLastModified())); d.setOwner(owner); d.setVersionId(summary.getVersionId()); versions.add(d); } } //Again, this is wrong, should be a single listing reply.setKeyEntries(versions); } catch (AmazonServiceException e) { LOG.debug("Error from backend", e); throw S3ExceptionMapper.fromAWSJavaSDK(e); } return reply; }
From source file:org.apache.nifi.processors.aws.s3.ListS3.java
License:Apache License
@Override public void onTrigger(final ProcessContext context, final ProcessSession session) { try {/*from w w w . j a va 2 s . c o m*/ 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(); int listType = context.getProperty(LIST_TYPE).asInteger(); S3BucketLister bucketLister = useVersions ? new S3VersionBucketLister(client) : listType == 2 ? new S3ObjectBucketListerVersion2(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(); } }