Example usage for com.amazonaws.util StringUtils join

Introduction

In this page you can find the example usage for com.amazonaws.util StringUtils join.

Prototype

public static String join(String joiner, String... parts) 

Source Link

Document

Joins the strings in parts with joiner between each string

Usage

From source file:com.davidsoergel.s3napback.S3ops.java

License:Apache License

public static void list(StreamingTransferManager tx, String bucket) throws InterruptedException {

    //** sort by date
    SortedMap<String, SortedMap<String, S3ObjectSummary>> blocks = new TreeMap<String, SortedMap<String, S3ObjectSummary>>();

    ObjectListing current = tx.getAmazonS3Client().listObjects(new ListObjectsRequest().withBucketName(bucket));

    List<S3ObjectSummary> keyList = current.getObjectSummaries();
    ObjectListing next = tx.getAmazonS3Client().listNextBatchOfObjects(current);
    keyList.addAll(next.getObjectSummaries());

    while (next.isTruncated()) {
        current = tx.getAmazonS3Client().listNextBatchOfObjects(next);
        keyList.addAll(current.getObjectSummaries());
        next = tx.getAmazonS3Client().listNextBatchOfObjects(current);
    }/*from  w w w.j av  a  2s.c  om*/
    keyList.addAll(next.getObjectSummaries());

    for (S3ObjectSummary objectSummary : keyList) {
        String[] c = objectSummary.getKey().split(":");
        if (c.length != 2) {
            logger.warn("ignoring malformed filename " + objectSummary.getKey());
        } else {
            String filename = c[0];
            String chunknum = c[1];

            SortedMap<String, S3ObjectSummary> chunks = blocks.get(filename);
            if (chunks == null) {
                chunks = new TreeMap<String, S3ObjectSummary>();
                blocks.put(filename, chunks);
            }

            chunks.put(chunknum, objectSummary);
        }
    }

    // now the files and chunks are in the maps in order
    for (Map.Entry<String, SortedMap<String, S3ObjectSummary>> blockEntry : blocks.entrySet()) {
        String filename = blockEntry.getKey();
        SortedMap<String, S3ObjectSummary> chunks = blockEntry.getValue();

        long totalsize = 0;
        Date lastModified = null;
        for (Map.Entry<String, S3ObjectSummary> entry : chunks.entrySet()) {
            totalsize += entry.getValue().getSize();
            lastModified = entry.getValue().getLastModified();
        }
        String[] line = { bucket, filename, "" + chunks.keySet().size(), "" + totalsize,
                lastModified.toString() };

        System.err.println(StringUtils.join("\t", line));

        // 2008-04-10 04:07:50 - dev.davidsoergel.com.backup1:MySQL/all-0 - 153.38k in 1 data blocks
    }
}

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