Sliced Iterator similar to Scala Iterator.slice method

[fanifieiev]

I could not find any implementation of sliced iterator, so I think it would be nice to have it in place.
Constructor:
public Sliced(final int fromIndex, final Iterator<T> iterator, final int limit)
An example is:
Iterator<Integer> sliced = new Sliced<>(2, new IteratorOf<>(1,2,3,4,5,6), 2);
that would return a slice of 2 elements starting from index 2, which will result in [3, 4].

PS: I have already implemented one and would like to create PR after this issue is created.

[0crat]

@paulodamaso/z please, pay attention to this issue

[0crat]

@fanifieiev/z this project will fix the problem faster if you donate a few dollars to it; just click here and pay via Stripe, it's very fast, convenient and appreciated; thanks a lot!

[paulodamaso]

@fanifieiev I'd like it, BUT:
We have some other similar behavior in cactoos project and I think that we can reuse the code between them:
HeadOf: gets the first N elements of the collection
TailOf: gets the last N elements of the collection
Skipped: skip N elements of the collection
Partitioned: slices the collection in parts of equal size N

If we look carefully we could compose these decorators using the new proposed Sliced one:

• HeadOf is an slice from 0 to N
• TailOf is an slice from size-N to size
• Skipped is an slice from N to size
• Partitioned is a collection of slices of size/N, starting at 0 to N, N+1 to 2N, and so on

So let's do it: create the Sliced decorator and use it in the aforementioned implementation.

P.S.: Let's create it for all interfaces: Collection, Iterable, Iterator, etc

[paulodamaso]

@0crat in

[paulodamaso]

@0crat assign @fanifieiev

[0crat]

@0crat in (here)

@paulodamaso Job #1188 is already in scope

[0crat]

@0crat assign @fanifieiev (here)

@paulodamaso The job #1188 assigned to @fanifieiev/z, here is why; the budget is 30 minutes, see §4; please, read §8 and §9; if the task is not clear, read this and this; @fanifieiev/z is not a member of this project yet, but they can request to join, as §1 explains; there will be no monetary reward for this job

[0crat]

@0crat assign @fanifieiev (here)

@paulodamaso Thanks for your contribution, @fanifieiev/z! If you would be a member of the project, you would now earn +15 reputation points, as explained in §29. You can join and apply to it, see §2.

[0crat]

Manual assignment of issues is discouraged, see §19: -5 point(s) just awarded to @paulodamaso/z

[0crat]

It is strongly discouraged to assign jobs to their creators, see §19: -15 point(s) just awarded to @paulodamaso/z

[fabriciofx]

@fanifieiev @paulodamaso II'm sorry, bu I didn't like this API. WDYT something like:

public Sliced(final int start, final int count, final T items...) {}
public Sliced(final int start, final int count, final Iterable<T> iterable) {}

[fanifieiev]

@fanifieiev @paulodamaso II'm sorry, bu I didn't like this API. WDYT something like:

public Sliced(final int start, final int count, final T items...) {}
public Sliced(final int start, final int count, final Iterable<T> iterable) {}

@fabriciofx Is your concern related to the constructor parameter names?

[fanifieiev]

@0crat review #1189

[paulodamaso]

@fabriciofx What's the problem about that?

[fanifieiev]

@fabriciofx What's the problem about that?

@paulodamaso I have already refactored the api, the changes are in there, in PR

[fabriciofx]

@paulodamaso It didn't follow the Cactoos API pattern and IMHO it's more clear now. Ah, in time: I'm not the REV of this PR...

[0crat]

@0crat review #1189 (here)

@fanifieiev Can't understand "review", try one of these:

• assign Assign a performer to this issue
• boost Set a boost for the job
• continue Remove a job's impediment
• hello Just say hello
• in Register this issue in scope (WBS)
• out Close the order and remove this job from scope
• pay Pay a user some extra cash
• quality Review a task
• resign Resign from this issue
• status Check the status of the job
• version Print current version of the bot
• wait Register an impediment for a job

[fabriciofx]

@0crat status

[0crat]

@0crat status (here)

@fabriciofx This is what I know about this job in C63314D6Z, as in §32:

• The job #1188 is in scope for 1days
• The role is DEV
• The job is assigned to @fanifieiev/z for 1days
• There is no monetary reward attached, it's a free job
• The job doesn't have any impediments
• The budget is 30 minutes/points
• These users are banned and won't be assigned:
  • @fanifieiev/z: This user reported the ticket
• Job footprint (restricted area)

[fanifieiev]

@0crat status

[0crat]

@0crat status (here)

@fanifieiev This is what I know about this job in C63314D6Z, as in §32:

• The job #1188 is in scope for 1days
• The role is DEV
• The job is assigned to @fanifieiev/z for 1days
• There is no monetary reward attached, it's a free job
• The job doesn't have any impediments
• The budget is 30 minutes/points
• These users are banned and won't be assigned:
  • @fanifieiev/z: This user reported the ticket
• Job footprint (restricted area)

[fanifieiev]

@paulodamaso
Why am I banned?
The Contribution section of the page Cactoos says:

How to contribute?
Just fork the repo and send us a pull request.
Make sure your branch builds without any warnings/issues:

[paulodamaso]

@fanifieiev You're banned from DEV role in the issue because you have opened it. Zerocrat does not assign issues to its creators. Your changes are being evaluated by @victornoel in #1189

[fanifieiev]

@fanifieiev You're banned from DEV role in the issue because you have opened it. Zerocrat does not assign issues to its creators. Your changes are being evaluated by @victornoel in #1189
@paulodamaso
Ok, got it, I created the issue, but the assignment was done on behalf of you, right?
So, what is the proper way to join DEV ?
Thanks

[paulodamaso]

@fanifieiev You need to join zerocracy in order to get reputation points and to be paid for jobs that have monetary rewards, please read the policy and join the platform in the link there.

Either way, your PR is being reviewed and will be merged as soon as @victornoel finishes the review

[0pdd]

@fanifieiev 4 puzzles #1191, #1192, #1193, #1194 are still not solved.

[0pdd]

@fanifieiev 3 puzzles #1191, #1193, #1194 are still not solved; solved: #1192.

[victornoel]

@fanifieiev this should be closed now, the tickets created by 0pdd will take over now for the rest of the work.

[fanifieiev]

@fanifieiev this should be closed now, the tickets created by 0pdd will take over now for the rest of the work.

@victornoel Should I close it manually?

[victornoel]

@fanifieiev yes, that's what I meant :)

[fanifieiev]

@0crat status

[0crat]

@0crat status (here)

@fanifieiev This is what I know about this job in C63314D6Z, as in §32:

• The job #1188 is in scope for 23days
• The role is DEV
• The job is assigned to @fanifieiev/z for 23days
• There is no monetary reward attached, it's a free job
• The job doesn't have any impediments
• The budget is 30 minutes/points
• These users are banned and won't be assigned:
  • @fanifieiev/z: This user reported the ticket
• Job footprint (restricted area)

[fanifieiev]

Work is done!!!

[0crat]

Job #1188 is not in the agenda of @fanifieiev/z, can't retrieve data and time of add

[0crat]

Job #1188 is not in the agenda of @fanifieiev/z, can't inspect

[0crat]

@sereshqua/z please review this job completed by @fanifieiev/z, as in §30; the job will be fully closed and all payments will be made when the quality review is completed

[0crat]

The job #1188 is now out of scope

[sereshqua]

@fanifieiev

1. we need to make sure that problem reporter and problem solver are two different persons;
2. you start all the comments from the name of the person you are referring to, see

[sereshqua]

@fanifieiev ping

[fanifieiev]

@sereshqua

1. I was the problem reporter and problem solver at the same time, but I was not part of this project at that time. When I created the problem, I was assigned by @paulodamaso to solve it. I did not know the rules then.

2. How should the problem be closed ?
   I was asked by reviewer @victornoel to close it manually, see

[sereshqua]

@fanifieiev

1. it is a policy rule and 0crat shows that the job has been completed by you, see

2. you need to start EVERY single comment in both issues & PRs with the name of the person your referring to.

[sereshqua]

@0crat quality acceptable

[0crat]

Order was finished, quality is "acceptable": +30 point(s) just awarded to @fanifieiev/z

[0crat]

Quality review completed: +4 point(s) just awarded to @sereshqua/z

[fanifieiev]

@fanifieiev

1. it is a policy rule and 0crat shows that the job has been completed by you, see
2. you need to start EVERY single comment in both issues & PRs with the name of the person your referring to.

@sereshqua Got it, will do next time.

[0pdd]

@fanifieiev the puzzle #1194 is still not solved; solved: #1191, #1192, #1193.

[0pdd]

@fanifieiev all 4 puzzles are solved here: #1191, #1192, #1193, #1194.