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android-service-arch | Reactive Programming library

 by   TheHiddenDuck Java Version: Current License: Apache-2.0

 by   TheHiddenDuck Java Version: Current License: Apache-2.0

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kandi X-RAY | android-service-arch Summary

android-service-arch is a Java library typically used in Programming Style, Reactive Programming, Gradle applications.,roid-service-arch has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However android-service-arch build file is not available. You can download it from GitHub.
android-service-arch
Support
Support
Quality
Quality
Security
Security
License
License
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kandi-support Support

  • android-service-arch has a low active ecosystem.
  • It has 37 star(s) with 9 fork(s). There are 5 watchers for this library.
  • It had no major release in the last 12 months.
  • android-service-arch has no issues reported. There are no pull requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of android-service-arch is current.
android-service-arch Support
Best in #Reactive Programming
Average in #Reactive Programming
android-service-arch Support
Best in #Reactive Programming
Average in #Reactive Programming

quality kandi Quality

  • android-service-arch has 0 bugs and 0 code smells.
android-service-arch Quality
Best in #Reactive Programming
Average in #Reactive Programming
android-service-arch Quality
Best in #Reactive Programming
Average in #Reactive Programming

securitySecurity

  • android-service-arch has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • android-service-arch code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
android-service-arch Security
Best in #Reactive Programming
Average in #Reactive Programming
android-service-arch Security
Best in #Reactive Programming
Average in #Reactive Programming

license License

  • android-service-arch is licensed under the Apache-2.0 License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
android-service-arch License
Best in #Reactive Programming
Average in #Reactive Programming
android-service-arch License
Best in #Reactive Programming
Average in #Reactive Programming

buildReuse

  • android-service-arch releases are not available. You will need to build from source code and install.
  • android-service-arch has no build file. You will be need to create the build yourself to build the component from source.
  • android-service-arch saves you 214 person hours of effort in developing the same functionality from scratch.
  • It has 524 lines of code, 54 functions and 13 files.
  • It has medium code complexity. Code complexity directly impacts maintainability of the code.
android-service-arch Reuse
Best in #Reactive Programming
Average in #Reactive Programming
android-service-arch Reuse
Best in #Reactive Programming
Average in #Reactive Programming
Top functions reviewed by kandi - BETA

kandi has reviewed android-service-arch and discovered the below as its top functions. This is intended to give you an instant insight into android-service-arch implemented functionality, and help decide if they suit your requirements.

  • Create an intent to execute a command .
    • Set the content view .
      • Start a running command
        • This method is called when the dialog is created .
          • Cancel a command
            • Handle an intent .
              • Send a progress notification
                • Get the application from the context .
                  • Send update notification .
                    • Remove the listener .

                      Get all kandi verified functions for this library.

                      Get all kandi verified functions for this library.

                      android-service-arch Key Features

                      android-service-arch Examples and Code Snippets

                      No Code Snippets are available at this moment for android-service-arch.

                      See all Code Snippets related to Reactive Programming

                      Community Discussions

                      Trending Discussions on Reactive Programming
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                      • UseCases or Interactors with Kt Flow and Retrofit
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                      • Send a list of objects one at time in reactive way
                      • Changing the target of a `whenever` block from the inside
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                      Trending Discussions on Reactive Programming

                      QUESTION

                      How to use RXJS to share a pool of resources between multiple consumers

                      Asked 2022-Mar-31 at 12:55

                      How can we divide work of consumers over a limited set of resources in RXJS?

                      I have a Pool class here (simplified):

                      class Pool<TResource> {
                      
                        private readonly resource$: Observable<TResource>;
                      
                        constructor(resource$: Observable<TResource>) {
                          this.resource$ = resource$.pipe(
                            // We use share replay here, so multiple calls to `schedule` will share the resources
                            shareReplay()
                          );
                        }
                      
                        /**
                         * Schedules a task to be executed on resources in the pool. Each input is paired with a resource, which allows async work to be done.
                         * @param input$ The inputs to pair up with a resource.
                         * @param task The task to execute on each resource
                         */
                        public schedule<TIn, TOut>(input$: Observable<TIn>, task: (resource: TResource, input: TIn) => Promise<TOut> | TOut): Observable<TOut> {
                          const recycleBin = new Subject<TResource>();
                          const resource$ = merge(recycleBin, this.resource$);
                      
                          return zip(resource$, input$).pipe(
                            mergeMap(async ([resource, input]) => {
                              const output = await task(resource, input);
                              //  Recycles a resource so its re-emitted from the `resource$` observable.
                              recycleBin.next(resource);
                              return output;
                            }),
                            tap({ complete: () => recycleBin.complete() })
                          );
                        }
                      }
                      

                      You can use it like this:

                      class CalculatorResource {
                        expensiveCalculation(n: number) {
                          return new Promise<number>(res => setTimeout(() => res(n*2), 1000));
                        }
                      }
                      
                      const pool = new Pool(of(new CalculatorResource(), new CalculatorResource()));
                      const input$ = of(1, 2, 3, 4);
                      const output$ = pool.schedule(input$, (calc, n) => calc.expensiveCalculation(n));
                      output$.subscribe(console.log)
                      // ...wait 1 sec
                      // Logs 2
                      // Logs 4
                      // ...wait 1 sec
                      // Logs 6
                      // Logs 8
                      

                      This works as expected.

                      However, when we call schedule in parallel, the resources will also be distributed in parallel. This is not good, we want the resources to be distributed evenly, since the nature of the tasks they do make it so they can't be called in parallel.

                      const pool = new Pool(of(new CalculatorResource(), new CalculatorResource()));
                      const input$ = of(1, 2, 3, 4);
                      const parallelInput$ = of(5, 6, 7, 8);
                      pool.schedule(input$, (calc, n) =>
                        calc.expensiveCalculation(n)
                      ).subscribe(console.log);
                      pool.schedule(parallelInput$, (calc, n) =>
                        calc.expensiveCalculation(n)
                      ).subscribe(console.log);
                      // Actual output:
                      
                      // ...wait 1 sec
                      // Logs 2
                      // Logs 4
                      // Logs 10
                      // Logs 12
                      // ...wait 1 sec
                      // Logs 6
                      // Logs 8
                      // Logs 14
                      // Logs 16
                      
                      // What i would like to see:
                      // ...wait 1 sec
                      // Logs 2
                      // Logs 4
                      // ...wait 1 sec
                      // Logs 10
                      // Logs 12
                      // ...wait 1 sec
                      // Logs 6
                      // Logs 8
                      // ...wait 1 sec
                      // Logs 14
                      // Logs 16
                      

                      ANSWER

                      Answered 2022-Mar-31 at 12:55

                      So the main thing is you need to share the actual part that does the work, not only the resources.

                      Here's a solution from me:

                      https://stackblitz.com/edit/rxjs-yyxjh2?devToolsHeight=100&file=index.ts

                      import { merge, Observable, Observer, of, Subject, zip } from 'rxjs';
                      import { ignoreElements, concatMap, switchMap } from 'rxjs/operators';
                      
                      class Pool<TResource> {
                        private readonly resourceFree$ = new Subject<TResource>();
                        private readonly dispatcher$ = new Subject<{
                          execute: (resource: TResource) => any;
                          observer: Observer<any>;
                        }>();
                        private freeResources$ = merge(this.resource$, this.resourceFree$);
                        readonly doWork$ = zip(this.freeResources$, this.dispatcher$).pipe(
                          switchMap(async ([resource, work]) => {
                            try {
                              const result = await work.execute(resource);
                              work.observer.next(result);
                              work.observer.complete();
                            } catch (err) {
                              work.observer.error(err);
                            }
                            this.resourceFree$.next(resource);
                          }),
                          ignoreElements()
                        );
                      
                        constructor(private resource$: Observable<TResource>) {}
                      
                        public schedule<TIn, TOut>(
                          input$: Observable<TIn>,
                          task: (resource: TResource, input: TIn) => Promise<TOut> | TOut
                        ): Observable<TOut> {
                          return input$.pipe(
                            //you can use mergeMap here as well, depends on how fast you want to consume inputs
                            concatMap((input) => {
                              const work = {
                                execute: (r) => task(r, input),
                                observer: new Subject<TOut>(),
                              };
                              this.dispatcher$.next(work);
                              return work.observer;
                            })
                          );
                        }
                      }
                      
                      class CalculatorResource {
                        expensiveCalculation(n: number) {
                          return new Promise<number>((res) => setTimeout(() => res(n * 2), 1000));
                        }
                      }
                      
                      const pool = new Pool(of(new CalculatorResource(), new CalculatorResource()));
                      pool.doWork$.subscribe(); //this is to start the pool dispatcher
                      
                      const input$ = of(1, 2, 3, 4);
                      const parallelInput$ = of(5, 6, 7, 8);
                      pool
                        .schedule(input$, (calc, n) => calc.expensiveCalculation(n))
                        .subscribe(console.log, undefined, () => console.log('1st done'));
                      pool
                        .schedule(parallelInput$, (calc, n) => calc.expensiveCalculation(n))
                        .subscribe(console.log, undefined, () => console.log('2nd done'));
                      
                      setTimeout(() => {
                        pool
                          .schedule(parallelInput$, (calc, n) => calc.expensiveCalculation(n))
                          .subscribe(console.log, undefined, () => console.log('3rd done'));
                      }, 5000);
                      

                      Source https://stackoverflow.com/questions/71689376

                      Community Discussions, Code Snippets contain sources that include Stack Exchange Network

                      Vulnerabilities

                      No vulnerabilities reported

                      Install android-service-arch

                      You can download it from GitHub.
                      You can use android-service-arch like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the android-service-arch component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

                      Support

                      For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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