Examples with S3ObjectSummary com.amazonaws.services.s3.model.S3ObjectSummary used on opensource projects

Example 51 with S3ObjectSummary

use of com.amazonaws.services.s3.model.S3ObjectSummary in project jackrabbit-oak by apache.

the class DataStoreUtils method deleteBucket.

public static void deleteBucket(String bucket, Map<String, ?> map, Date date) throws Exception {
    log.info("cleaning bucket [" + bucket + "]");
    Properties props = new Properties();
    props.putAll(map);
    AmazonS3Client s3service = Utils.openService(props);
    TransferManager tmx = new TransferManager(s3service);
    if (s3service.doesBucketExist(bucket)) {
        for (int i = 0; i < 4; i++) {
            tmx.abortMultipartUploads(bucket, date);
            ObjectListing prevObjectListing = s3service.listObjects(bucket);
            while (prevObjectListing != null) {
                List<DeleteObjectsRequest.KeyVersion> deleteList = new ArrayList<DeleteObjectsRequest.KeyVersion>();
                for (S3ObjectSummary s3ObjSumm : prevObjectListing.getObjectSummaries()) {
                    deleteList.add(new DeleteObjectsRequest.KeyVersion(s3ObjSumm.getKey()));
                }
                if (deleteList.size() > 0) {
                    DeleteObjectsRequest delObjsReq = new DeleteObjectsRequest(bucket);
                    delObjsReq.setKeys(deleteList);
                    s3service.deleteObjects(delObjsReq);
                }
                if (!prevObjectListing.isTruncated())
                    break;
                prevObjectListing = s3service.listNextBatchOfObjects(prevObjectListing);
            }
        }
        s3service.deleteBucket(bucket);
        log.info("bucket [ " + bucket + "] cleaned");
    } else {
        log.info("bucket [" + bucket + "] doesn't exists");
    }
    tmx.shutdownNow();
    s3service.shutdown();
}

Example 52 with S3ObjectSummary

use of com.amazonaws.services.s3.model.S3ObjectSummary in project jackrabbit-oak by apache.

the class S3Backend method renameKeys.

/**
     * This method rename object keys in S3 concurrently. The number of
     * concurrent threads is defined by 'maxConnections' property in
     * aws.properties. As S3 doesn't have "move" command, this method simulate
     * move as copy object object to new key and then delete older key.
     */
private void renameKeys() throws DataStoreException {
    long startTime = System.currentTimeMillis();
    ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
    long count = 0;
    try {
        Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
        ObjectListing prevObjectListing = s3service.listObjects(bucket);
        List<DeleteObjectsRequest.KeyVersion> deleteList = new ArrayList<DeleteObjectsRequest.KeyVersion>();
        int nThreads = Integer.parseInt(properties.getProperty("maxConnections"));
        ExecutorService executor = Executors.newFixedThreadPool(nThreads, new NamedThreadFactory("s3-object-rename-worker"));
        boolean taskAdded = false;
        while (true) {
            for (S3ObjectSummary s3ObjSumm : prevObjectListing.getObjectSummaries()) {
                executor.execute(new KeyRenameThread(s3ObjSumm.getKey()));
                taskAdded = true;
                count++;
                // delete the object if it follows old key name format
                if (s3ObjSumm.getKey().startsWith(KEY_PREFIX)) {
                    deleteList.add(new DeleteObjectsRequest.KeyVersion(s3ObjSumm.getKey()));
                }
            }
            if (!prevObjectListing.isTruncated())
                break;
            prevObjectListing = s3service.listNextBatchOfObjects(prevObjectListing);
        }
        // This will make the executor accept no new threads
        // and finish all existing threads in the queue
        executor.shutdown();
        try {
            // Wait until all threads are finish
            while (taskAdded && !executor.awaitTermination(10, TimeUnit.SECONDS)) {
                LOG.info("Rename S3 keys tasks timedout. Waiting again");
            }
        } catch (InterruptedException ie) {
        }
        LOG.info("Renamed [{}] keys, time taken [{}]sec", count, ((System.currentTimeMillis() - startTime) / 1000));
        // Delete older keys.
        if (deleteList.size() > 0) {
            DeleteObjectsRequest delObjsReq = new DeleteObjectsRequest(bucket);
            int batchSize = 500, startIndex = 0, size = deleteList.size();
            int endIndex = batchSize < size ? batchSize : size;
            while (endIndex <= size) {
                delObjsReq.setKeys(Collections.unmodifiableList(deleteList.subList(startIndex, endIndex)));
                DeleteObjectsResult dobjs = s3service.deleteObjects(delObjsReq);
                LOG.info("Records[{}] deleted in datastore from index [{}] to [{}]", new Object[] { dobjs.getDeletedObjects().size(), startIndex, (endIndex - 1) });
                if (endIndex == size) {
                    break;
                } else {
                    startIndex = endIndex;
                    endIndex = (startIndex + batchSize) < size ? (startIndex + batchSize) : size;
                }
            }
        }
    } finally {
        if (contextClassLoader != null) {
            Thread.currentThread().setContextClassLoader(contextClassLoader);
        }
    }
}