Lukasz Sz luks91
luks91
/ generate_sample.kt
Last active
October 16, 2017 12:55
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| fun statefulIntegers() = Flowable.generate( | |
| Callable<Int> { 0 }, | |
| BiFunction<Int, Emitter<Int>, Int> { index, emitter -> | |
| if (index < 100) { | |
| emitter.onNext(index) | |
| } else { | |
| emitter.onComplete() | |
| } | |
| return@BiFunction index + 1 | |
| } |
luks91
/ PagedResponse.kt
Created
October 16, 2017 00:28
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| data class PagedResponse<out T>(@Json(name = "isLastPage") val isLastPage: Boolean, | |
| @Json(name = "values") val values: List<T>, | |
| @Json(name = "nextPageStart") val nextPageStart: Int) |
luks91
/ ApiExample.kt
Last active
October 16, 2017 01:11
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| interface ServerApi { | |
| @GET("/rest/api/1.0/strings/") | |
| fun getStrings( | |
| @Query("start") start: Int, | |
| @Query("pageLimit") pageLimit: Int | |
| ): Flowable<PagedResponse<String>> | |
| } |
luks91
/ PagedQuery.kt
Created
October 16, 2017 00:43
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| fun <TData> pagedDataOf(nextPageStartingFrom: (start: Int) -> Flowable<PagedResponse<TData>>): Flowable<List<TData>> { | |
| return Flowable.generate<List<TData>, Int>( | |
| Callable<Int> { 0 }, | |
| BiFunction<Int, Emitter<List<TData>>, Int> { index, emitter -> | |
| nextPageStartingFrom(index) | |
| .doOnNext { page -> | |
| if (!page.values.isEmpty()) { | |
| emitter.onNext(page.values) | |
| } |
luks91
/ FinalPaging.kt
Created
October 16, 2017 00:57
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| fun <TData> pagedDataOf(nextPageStartingFrom: (start: Int) -> Flowable<PagedResponse<TData>>): Flowable<List<TData>> = | |
| Flowables.generateWith({ 0 }) { start, emitter -> | |
| nextPageStartingFrom(start) | |
| .doOnNext { | |
| it.apply { | |
| values.takeIf { it.isNotEmpty() }?.let { emitter.onNext(it) } | |
| isLastPage.takeIf { it }?.let { emitter.onComplete() } | |
| } | |
| } | |
| .map { it.nextPageStart } |
luks91
/ Flowables.kt
Last active
October 16, 2017 01:01
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| class Flowables private constructor(){ | |
| companion object { | |
| inline fun <T, S> generateWith(noinline initialState: () -> S, crossinline generator: (S, Emitter<T>) -> S) | |
| = Flowable.generate(Callable<S>(initialState), BiFunction<S, Emitter<T>, S> { a, b -> generator.invoke(a, b) }) | |
| } | |
| } |
luks91
/ SampleCall.kt
Created
October 16, 2017 01:15
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| fun sampleCall(api: ServerApi) { | |
| pagedDataOf { start -> api.getStrings(start, pageLimit = 20) } | |
| .subscribeOn(Schedulers.io()) | |
| .subscribe(object: Subscriber<List<String>> { | |
| override fun onSubscribe(subscription: Subscription) { | |
| subscription.request(2) | |
| } | |
| override fun onNext(nextPage: List<String>) = System.out.println(nextPage) |
luks91
/ Example1.kt
Last active
November 23, 2017 14:15
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| package com.github.luks91.streamnesting | |
| import android.util.Log | |
| import io.reactivex.Flowable | |
| import io.reactivex.schedulers.Schedulers | |
| import io.reactivex.subscribers.DefaultSubscriber | |
| data class Contact(val firstName: String, | |
| val lastName: String, | |
| val phoneNumber: String) |
luks91
/ Example1_part1.kt
Last active
November 23, 2017 14:16
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| fun save(contacts: Flowable<Contact>) = | |
| contacts | |
| .observeOn(Schedulers.io()) | |
| .subscribe(object : DefaultSubscriber<Contact>() { | |
| override fun onStart() = request(1) | |
| override fun onNext(contact: Contact) = | |
| openConnection<Contact>().use { | |
| it.write(contact) | |
| request(1) |
luks91
/ override_onStart.kt
Created
November 19, 2017 21:33
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| override fun onStart() = request(1) |
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