/* * MIT License * * Copyright (c) 2018 Alibaba Group * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.tmall.wireless.tangram.support; import java.util.concurrent.atomic.AtomicBoolean; import com.tmall.wireless.tangram.op.ClickExposureCellOp; import com.tmall.wireless.tangram.util.Preconditions; import io.reactivex.Observable; import io.reactivex.Observer; import io.reactivex.disposables.Disposable; import io.reactivex.internal.disposables.CancellableDisposable; /** * Created by longerian on 2018/3/7. * * @author longerian * @date 2018/03/07 */ public class CellExposureObservable extends Observable<ClickExposureCellOp> { private ClickExposureCellOp mRxClickExposureEvent; private ExposureDispose mExposureDispose; public CellExposureObservable(ClickExposureCellOp rxClickExposureEvent) { Preconditions.checkNotNull(rxClickExposureEvent); Preconditions.checkNotNull(rxClickExposureEvent.getArg1()); this.mRxClickExposureEvent = rxClickExposureEvent; } public void setRxClickExposureEvent(ClickExposureCellOp rxClickExposureEvent) { mRxClickExposureEvent = rxClickExposureEvent; } @Override protected void subscribeActual(Observer<? super ClickExposureCellOp> observer) { if (mExposureDispose == null) { mExposureDispose = new ExposureDispose(); } observer.onSubscribe(mExposureDispose); if (!mExposureDispose.isDisposed()) { observer.onNext(mRxClickExposureEvent); } } private static class ExposureDispose implements Disposable { private final AtomicBoolean unsubscribed = new AtomicBoolean(); @Override public void dispose() { unsubscribed.compareAndSet(false, true); } @Override public boolean isDisposed() { return unsubscribed.get(); } } }