gaul

S3Proxy offers similar multi-protocol access at the S3 API layer:

https://github.com/andrewgaul/s3proxy

It has compatibility with local filesystem, Backblaze B2, Google Cloud Storage, Microsoft Azure, and OpenStack Swift. Note that this is software and not a service.

[S3Proxy author plug]

Google error-prone is a good alternative to FindBugs:

https://github.com/google/error-prone

http://errorprone.info/bugpatterns

Pros:

  * has faster cycle times and integrates into compilation workflow
  * emits fewer false positives
  * active maintainers fix issues
  * releases several times per year

Cons:

  * FindBugs has a greater breadth of checks
  * current error-prone releases only work with Java 8

Probably referencing this:

https://bugzilla.mozilla.org/show_bug.cgi?id=1297454

Wikipedia suggests 3x more passengers per track/lane at 40% of the land use based on Eurostar and the Highway Capacity Manual:

https://en.wikipedia.org/wiki/High-speed_rail#Automobiles_an...

Tokaido Shinkansen carries twice as many passengers so this agrees with your post end assuming that two rail lines each have two tracks each. Note that this is the most extreme example, most railways do not carry this capacity.

You have this backwards; California sends the federal government $1.00 and receives 90 cents in return:

http://www.theatlantic.com/business/archive/2014/05/which-st...

This is similar to the older TRIPS system which Doug Burger also worked on:

https://www.cs.utexas.edu/~trips/

Full paper:

http://3e8.org/pub/scheme/doc/lisp-pointers/v1i3/p17-white.p...

CppCon 2015: Herb Sutter "Writing Good C++14... By Default":

https://youtu.be/hEx5DNLWGgA

Sutter comments on const_cast around 11m15s.

I added an issue to track this since Nimbus is still in private beta:

https://github.com/andrewgaul/object-store-comparison/issues...

Updated object store comparison:

http://gaul.org/object-store-comparison/

Updated cross-provider comparison:

http://gaul.org/object-store-comparison/

s3fs also layers a filesystem on top of S3 but preserves the native object format:

https://github.com/s3fs-fuse/s3fs-fuse

This approach allows use of other tools like s3cmd and the Amazon web console but prevents advanced features like deduplication and snapshotting.

Similar project: https://github.com/bouncestorage/chaos-http-proxy

s3fs-fuse has its share of problems, but master has fixes for some of the error handling and truncated files issues. Please report any bugs you encounter on GitHub!

Following on to Step 7: profit, modernizer-maven-plugin can help detect uses of older library classes like Guava Optional and recommend using the newer Java 8 Optional:

https://github.com/andrewgaul/modernizer-maven-plugin

I have not previously encountered these providers; could you submit a pull request here:

https://github.com/andrewgaul/object-store-comparison

Corrected; thanks! Note that GitHub hosts this project for any further issues or corrections:

https://github.com/andrewgaul/object-store-comparison

Corrected; thanks! Note that GitHub hosts this project for any further issues or corrections:

https://github.com/andrewgaul/object-store-comparison

I added GCS nearline to my object storage comparison:

http://gaul.org/object-store-comparison/

Glacier definitely has a cost advantage for archiving, although Google DRA offers a compelling price/ease of use tradeoff. Day-to-day storage is less clear; both AWS S3 and Azure have competitive offerings and Google is rapidly improving. Some of the other providers have advantages that a tabular comparison does not capture, for example Joyent offers a fused compute and storage solution.

Subjectively some fields either did not provide enough information, e.g., most providers have free ingress traffic, or I could not find enough information about a field, e.g., number of replicas for several providers. I tried to pick a subset of data that was both useful and complete for the defaults; other fields can be selectively enabled.

Unfortunately s3cmd requires bucket-in-hostname support which S3Proxy lacks:

https://github.com/s3tools/s3cmd/issues/149

https://github.com/andrewgaul/s3proxy/issues/8

I also added a compatibility list wiki:

https://github.com/andrewgaul/s3proxy/wiki/S3Proxy-compatibi...

S3Proxy cannot provide more that the S3 API allows, such as byte range updates, although some features can be enabled by bucket-level policies. S3Proxy can emulate features that other providers lack like public buckets and could provide other features like bucket-in-hostname. Apache jclouds provides the underlying object store compatibility so S3Proxy will benefit from improvements to it.

really-executable-jars codifies this as a Maven plugin:

https://github.com/brianm/really-executable-jars-maven-plugi...

One can precisely handle exceptions with JUnit's ExpectedException:

http://kentbeck.github.com/junit/javadoc/4.10/org/junit/rule...

This is more compact and declarative than the usual

  try {
      ...;
      fail();
  } catch (...) {
      // expected
  }