new demo file #315
new demo file #315
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| public static AmazonS3 getS3Client() { | ||
| return AmazonS3ClientBuilder.standard().withRegion(Regions.DEFAULT_REGION).build(); |
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This code is written so that the client cannot be reused across invocations of the Lambda function.
To improve the performance of the Lambda function, consider using static initialization/constructor, global/static variables and singletons. It allows to keep alive and reuse HTTP connections that were established during a previous invocation.
Learn more about best practices for working with AWS Lambda functions.
| final AmazonS3 s3Client = EventHandler.getS3Client(); | ||
| logger.log("Processing Bucket: " + bucketName); | ||
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| ObjectListing files = s3Client.listObjects(bucketName); |
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This code might not produce accurate results if the operation returns paginated results instead of all results. Consider adding another call to check for additional results.
| final AmazonS3 s3Client = EventHandler.getS3Client(); | ||
| logger.log("Processing Bucket: " + bucketName); | ||
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| ObjectListing files = s3Client.listObjects(bucketName); |
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This code uses an outdated API. ListObjectsV2 is the revised List Objects API, and we recommend you use this revised API for new application developments.
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| long expirationTime = System.currentTimeMillis() + Duration.ofMinutes(1).toMillis(); | ||
| while(System.currentTimeMillis() < expirationTime) { | ||
| if (s3Client.doesObjectExist(Constants.SUMMARY_BUCKET, summaryUpdateName)) { |
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This code appears to be waiting for a resource before it runs. You could use the waiters feature to help improve efficiency. Consider using ObjectExists or ObjectNotExists. For more information, see https://aws.amazon.com/blogs/developer/waiters-in-the-aws-sdk-for-java/
| try { | ||
| processShipmentUpdates(logger); | ||
| return "SUCCESS"; | ||
| } catch (final Exception ex) { |
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Problem: While re-throwing the caught exception with modifications , information about the caught exception is being lost, including information about the stack trace of the exception.
Fix: If the caught exception object does not contain sensitive information, consider passing it as the "rootCause" or inner exception parameter to the constructor of the new exception before throwing the new exception. (Note that not all exception constructors support inner exceptions. Use a wrapper exception that supports inner exceptions.)
Learn more
Suggested remediation:
Consider passing the exception object either as "rootCause" or as an inner exception parameter, to the constructor of the new exception before throwing new exception. This will help keep stack trace.
@@ -61,3 +61,3 @@
logger.log(String.format("Failed to process shipment Updates in %s due to %s", scheduledEvent.getAccount(), ex.getMessage()));
- throw new RuntimeException("Hiding the exception");
+ throw new RuntimeException("Hiding the exception", ex);
}
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| public String weakMessageEncryption(String message, String key) throws Exception { | ||
| Cipher cipher = Cipher.getInstance("RSA"); |
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It looks like your code uses a cipher object with an insecure transformation. To make your code more secure, use one of the following algorithms with a built-in integrity check: AES/GCM/NoPadding or ChaCha20-Poly1305.
Issue #, if available:
Description of changes:
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