io.micronaut.reactive.rxjava2.RxInstrumentedConnectableFlowable Maven / Gradle / Ivy
/*
* Copyright 2017-2019 original authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.micronaut.reactive.rxjava2;
import io.micronaut.core.annotation.Internal;
import io.micronaut.scheduling.instrument.ReactiveInstrumenter;
import io.micronaut.scheduling.instrument.RunnableInstrumenter;
import io.reactivex.disposables.Disposable;
import io.reactivex.flowables.ConnectableFlowable;
import io.reactivex.functions.Consumer;
import org.reactivestreams.Subscriber;
import java.util.Collection;
import java.util.List;
/**
* Inspired by code in Brave. Provides general instrumentation abstraction for RxJava2.
* See https://github.com/openzipkin/brave/tree/master/context/rxjava2/src/main/java/brave/context/rxjava2/internal.
*
* @param The type
* @author graemerocher
* @since 1.1
*/
@Internal
final class RxInstrumentedConnectableFlowable extends ConnectableFlowable implements RxInstrumentedComponent {
private final ConnectableFlowable source;
private final List instrumentations;
/**
* Default constructor.
* @param source The source
* @param instrumentations The instrumentations
*/
RxInstrumentedConnectableFlowable(
ConnectableFlowable source, List instrumentations) {
this.source = source;
this.instrumentations = instrumentations;
}
/**
* Default constructor.
* @param source The source
* @param instrumentations The instrumentations
*/
RxInstrumentedConnectableFlowable(
ConnectableFlowable source, Collection instrumentations) {
this.source = source;
this.instrumentations = toRunnableInstrumenters(instrumentations);
}
@Override protected void subscribeActual(Subscriber s) {
source.subscribe(RxInstrumentedWrappers.wrap(s, instrumentations));
}
@Override public void connect(Consumer connection) {
Runnable connectRunnable = () -> source.connect(connection);
for (RunnableInstrumenter instrumentation : instrumentations) {
connectRunnable = instrumentation.instrument(connectRunnable);
}
connectRunnable.run();
}
}