Pipeline processing of data – python syntax
In python world, python co-routines/generators are used to perform pipeline processing of finite/infinite data from any data source (like socket/collection/generators/..), as shown below,
grep() is used with parallelism.
wwwlog = open("access-log") bytecolumn = (line.rsplit(None,1) for line in wwwlog) bytes = (int(x) for x in bytecolumn if x != '-') print "Total", sum(bytes)
In the above examples, data is processed as needed.
Java – streams
Brian goetz says, Streams is about possibly-parallel, aggregate operations on data sets, with an example,
txns .stream() .filter(t -> t.getBuyer().getAge() >= 65 ) .map(Txn::getSeller) .distinct() .sorted(comparing(Seller::getName)) .forEach(s -> System.out.println(s.getName()))
Documentation says, To perform a computation, stream operations are composed into a stream pipeline. A stream pipeline consists of a source (which might be an array, a collection, a generator function, an I/O channel, etc), zero or more intermediate operations (which transform a stream into another stream, such as
filter(Predicate)), and a terminal operation (which produces a result or side-effect, such as
forEach(Consumer)). Streams are lazy; computation on the source data is only performed when the terminal operation is initiated, and source elements are consumed only as needed.
My understanding is,
ThreadPoolExecutor abstraction in java 5, provides structuring of concurrent applications, that involves shared mutable state.
forkjoinpool in java 7 provides parallelism of CPU bound operations, that does not involve shared mutable state.
Is Java stream mainly used to perform pipeline processing of data? that does not involve shared mutable state.
✓ Extra quality
ExtraProxies brings the best proxy quality for you with our private and reliable proxies
✓ Extra anonymity
Top level of anonymity and 100% safe proxies – this is what you get with every proxy package
✓ Extra speed
1,ooo mb/s proxy servers speed – we are way better than others – just enjoy our proxies!
USA proxy location
We offer premium quality USA private proxies – the most essential proxies you can ever want from USA
Our proxies have TOP level of anonymity + Elite quality, so you are always safe and secure with your proxies
Use your proxies as much as you want – we have no limits for data transfer and bandwidth, unlimited usage!
Superb fast proxy servers with 1,000 mb/s speed – sit back and enjoy your lightning fast private proxies!
99,9% servers uptime
Alive and working proxies all the time – we are taking care of our servers so you can use them without any problems
No usage restrictions
You have freedom to use your proxies with every software, browser or website you want without restrictions
Perfect for SEO
We are 100% friendly with all SEO tasks as well as internet marketing – feel the power with our proxies
Buy more proxies and get better price – we offer various proxy packages with great deals and discounts
We are working 24/7 to bring the best proxy experience for you – we are glad to help and assist you!