List of usage examples for com.amazonaws.services.s3.model S3ObjectSummary getSize
public long getSize()
From source file:sys2202.aws.s3.Sample.java
License:Open Source License
public static void main(String[] args) throws Exception { // create the client we'll use to connect to S3 AmazonS3 s3 = AmazonS3ClientBuilder.standard().withRegion(Regions.US_EAST_1).build(); // list buckets in our S3 account System.out.println("Listing buckets in our S3 account...\n"); for (Bucket bucket : s3.listBuckets()) { System.out.println("\t" + bucket.getName()); }//from ww w .jav a2 s .c o m System.out.println(); // create a new bucket to experiment with String bucketName = "msg8u-sys2202-bucket"; // set the bucket name -- this must be unique, so you'll want to use your ID instead of msg8u System.out.println("Creating bucket " + bucketName + "...\n"); s3.createBucket(bucketName); // list buckets in our S3 account System.out.println("Listing buckets in our S3 account...\n"); for (Bucket bucket : s3.listBuckets()) { System.out.println("\t" + bucket.getName()); } System.out.println(); // create and upload a sample file System.out.println("Uploading a new object to S3 from a local file...\n"); File sampleFile = createSampleFile(); String objectKey = "my-test-file"; PutObjectRequest putRequest = new PutObjectRequest(bucketName, objectKey, sampleFile); s3.putObject(putRequest); // list objects in our new bucket -- notice the new object is now present System.out.println("Listing objects in our new bucket...\n"); ListObjectsRequest listRequest = new ListObjectsRequest().withBucketName(bucketName); ObjectListing objectListing = s3.listObjects(listRequest); for (S3ObjectSummary objectSummary : objectListing.getObjectSummaries()) { System.out.println("\t" + objectSummary.getKey() + " " + "(size = " + objectSummary.getSize() + ")"); } System.out.println(); // download and display the sample file that we just uploaded System.out.println("Downloading the sample file...\n"); GetObjectRequest getRequest = new GetObjectRequest(bucketName, objectKey); S3Object object = s3.getObject(getRequest); displayTextInputStream(object.getObjectContent()); // delete the sample file from S3 System.out.println("Deleting the sample file...\n"); s3.deleteObject(bucketName, objectKey); // delete the bucket System.out.println("Deleting the bucket...\n"); s3.deleteBucket(bucketName); System.out.println("All done!"); }
From source file:thinkbig.util.Util.java
License:Open Source License
/** * returns (and prints) all (only non-empty objects if excludeBlanks is true) objects * in an S3 bucket as list of Strings/*from w w w . j a va2s . c o m*/ * null if no such bucket exists * @param s3 * @param bucketName * @param excludeBlanks * @return */ public static List<String> getAllObjectKeysInBucket(AmazonS3 s3, String bucketName, boolean excludeBlanks) { // check if the client is valid if (s3 == null) { System.out.println("Not a valid S3 Client"); return null; } // check if the bucket exists if (!s3.doesBucketExist(bucketName)) { System.out.println("The bucket '" + bucketName + "' does not exist!"); return null; } System.out.println("Listing objects in bucket '" + bucketName + "' "); ObjectListing objectListing = s3.listObjects(new ListObjectsRequest().withBucketName(bucketName)); if (objectListing == null) { return null; } List<String> objectKeys = new ArrayList<String>(); for (S3ObjectSummary objectSummary : objectListing.getObjectSummaries()) { String key = objectSummary.getKey(); if (!excludeBlanks || objectSummary.getSize() > 0) { objectKeys.add(key); System.out.println(" - " + key + " " + "(size = " + objectSummary.getSize() + ")"); } } return objectKeys; }
From source file:yn.aws.S3Sample.java
License:Open Source License
public static void main(String[] args) throws IOException { /*/*from ww w. j a v a 2 s .co m*/ * This credentials provider implementation loads your AWS credentials * from a properties file at the root of your classpath. * * Important: Be sure to fill in your AWS access credentials in the * AwsCredentials.properties file before you try to run this * sample. * http://aws.amazon.com/security-credentials */ AmazonS3 s3 = new AmazonS3Client(new ClasspathPropertiesFileCredentialsProvider()); String bucketName = "my-first-s3-bucket-" + UUID.randomUUID(); String key = "MyObjectKey"; System.out.println("==========================================="); System.out.println("Getting Started with Amazon S3"); System.out.println("===========================================\n"); try { /* * Create a new S3 bucket - Amazon S3 bucket names are globally unique, * so once a bucket name has been taken by any user, you can't create * another bucket with that same name. * * You can optionally specify a location for your bucket if you want to * keep your data closer to your applications or users. */ System.out.println("Creating bucket " + bucketName + "\n"); s3.createBucket(bucketName); /* * List the buckets in your account */ System.out.println("Listing buckets"); for (Bucket bucket : s3.listBuckets()) { System.out.println(" - " + bucket.getName()); } System.out.println(); /* * Upload an object to your bucket - You can easily upload a file to * S3, or upload directly an InputStream if you know the length of * the data in the stream. You can also specify your own metadata * when uploading to S3, which allows you set a variety of options * like content-type and content-encoding, plus additional metadata * specific to your applications. */ System.out.println("Uploading a new object to S3 from a file\n"); s3.putObject(new PutObjectRequest(bucketName, key, createSampleFile())); /* * Download an object - When you download an object, you get all of * the object's metadata and a stream from which to read the contents. * It's important to read the contents of the stream as quickly as * possibly since the data is streamed directly from Amazon S3 and your * network connection will remain open until you read all the data or * close the input stream. * * GetObjectRequest also supports several other options, including * conditional downloading of objects based on modification times, * ETags, and selectively downloading a range of an object. */ System.out.println("Downloading an object"); S3Object object = s3.getObject(new GetObjectRequest(bucketName, key)); System.out.println("Content-Type: " + object.getObjectMetadata().getContentType()); displayTextInputStream(object.getObjectContent()); /* * List objects in your bucket by prefix - There are many options for * listing the objects in your bucket. Keep in mind that buckets with * many objects might truncate their results when listing their objects, * so be sure to check if the returned object listing is truncated, and * use the AmazonS3.listNextBatchOfObjects(...) operation to retrieve * additional results. */ System.out.println("Listing objects"); ObjectListing objectListing = s3 .listObjects(new ListObjectsRequest().withBucketName(bucketName).withPrefix("My")); for (S3ObjectSummary objectSummary : objectListing.getObjectSummaries()) { System.out.println( " - " + objectSummary.getKey() + " " + "(size = " + objectSummary.getSize() + ")"); } System.out.println(); /* * Delete an object - Unless versioning has been turned on for your bucket, * there is no way to undelete an object, so use caution when deleting objects. */ System.out.println("Deleting an object\n"); s3.deleteObject(bucketName, key); /* * Delete a bucket - A bucket must be completely empty before it can be * deleted, so remember to delete any objects from your buckets before * you try to delete them. */ System.out.println("Deleting bucket " + bucketName + "\n"); s3.deleteBucket(bucketName); } catch (AmazonServiceException ase) { System.out.println("Caught an AmazonServiceException, which means your request made it " + "to Amazon S3, but was rejected with an error response for some reason."); System.out.println("Error Message: " + ase.getMessage()); System.out.println("HTTP Status Code: " + ase.getStatusCode()); System.out.println("AWS Error Code: " + ase.getErrorCode()); System.out.println("Error Type: " + ase.getErrorType()); System.out.println("Request ID: " + ase.getRequestId()); } catch (AmazonClientException ace) { System.out.println("Caught an AmazonClientException, which means the client encountered " + "a serious internal problem while trying to communicate with S3, " + "such as not being able to access the network."); System.out.println("Error Message: " + ace.getMessage()); } }