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Android Http Core Library

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package com.cmonbaby.http.rxjava.bus;

import rx.Observable;
import rx.subjects.PublishSubject;
import rx.subjects.SerializedSubject;
import rx.subjects.Subject;

/**
 * Author:      Simon
 * 
QO:          8950764
 * 
Email:       [email protected]
 * 
WebSize:     https://www.cmonbaby.com
 * 
Version:     1.0.0
 * 
Date:        2020/12/28
 * Description: 用于替换EventBus的RxBus实现,同时用做Http响应数据的分发
 */
public class RxBus {

    private static volatile RxBus mInstance;
    // PublishSubject只会把在订阅发生的时间点之后来自原始Observable的数据发射给观察者
    private final Subject bus = new SerializedSubject<>(PublishSubject.create());

    private RxBus() {
    }

    public static RxBus getInstance() {
        if (mInstance == null) {
            synchronized (RxBus.class) {
                if (mInstance == null) {
                    mInstance = new RxBus();
                }
            }
        }
        return mInstance;
    }

    // 发送一个新的事件
    public void send(Object event) {
        bus.onNext(event);
    }

    // 根据传递的 eventType 类型返回特定类型(eventType)的 被观察者
    public  Observable take(final Class eventType) {
        return bus.filter(eventType::isInstance).cast(eventType);
    }
}