rxjava的observable订阅时在oncomplete被调用时取消订阅
在非android环境中使用rxjava2.x时，如果需要在observable的oncomplete被调用时取消订阅，可以采用以下方法：
在oncomplete中设置completablefuture.complete通知调用方已结束：
table.subscribe(tableins -> {
// system.out.println("-------information-------");
system.out.println(tableins);
}, throwable -> {
throw new schemaexportexception(throwable);
}, new action() {
@override
public void run() throws exception {
system.out.println("complete");
// 在这里取消订阅
completablefuture.complete();
}
});调用方可以根据completablefuture来判断observable是否已完成：
long startStamp = System.currentTimeMillis();
// Flowable
Flowable
tableFlowable = result.getAll(dbName.get(), strategy).flatMap(new Function>() {
@Override
public Publisher apply(@NonNull Table table) throws Exception {
return result.getTableColumn(table).flatMap(new Function, SingleSource>() {
@Override
public SingleSource apply(@NonNull List columns) throws Exception {
return Single.just(table.fillColumn(columns));
}
}).flatMapPublisher(new Function>() {
@Override
public Publisher apply(@NonNull Table table) throws Exception {
return Flowable.just(table);
}
});
}
});
Disposable disposable = null;
try {
disposable = out.flush(info, tableFlowable);
CompletableFuture future = out.getFuture();
while (!future.isDone()) {
logger.info("[ERE-Flowable]未完成,线程休眠1秒");
Thread.currentThread().sleep(1000, 0);
}
String result = future.get();
logger.info("[ERE-Flowable]完成, 结果:" + result);
if (result.equals("OK")) {
long finishStamp = System.currentT
imeMillis();
clearHander(disposable, "[ERE-Flowable]RxJava disposed because complete, WithTime: " + (finishStamp - startStamp));
}
} catch (Exception e) {
clearHander(disposable, "[ERE-Flowable]RxJava disposed has Exception: " + e.getMessage());
}
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