/*
* Copyright 2017 NAVER Corp.
*
* 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 com.navercorp.pinpoint.profiler.context;
import com.navercorp.pinpoint.common.annotations.InterfaceAudience;
import com.navercorp.pinpoint.profiler.context.id.ListenableAsyncState;
import com.navercorp.pinpoint.profiler.context.storage.Storage;
import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
/**
* @author Woonduk Kang(emeroad)
*/
@InterfaceAudience.LimitedPrivate("vert.x")
public class SpanAsyncStateListener implements ListenableAsyncState.AsyncStateListener {
private final AtomicIntegerFieldUpdater<SpanAsyncStateListener> CLOSED_UPDATER
= AtomicIntegerFieldUpdater.newUpdater(SpanAsyncStateListener.class, "closed");
private static final int OPEN = 0;
private static final int CLOSED = 1;
@SuppressWarnings("unused")
private volatile int closed = OPEN;
private final Span span;
private final Storage storage;
SpanAsyncStateListener(Span span, Storage storage) {
if (span == null) {
throw new NullPointerException("span must not be null");
}
if (storage == null) {
throw new NullPointerException("storage must not be null");
}
this.span = span;
this.storage = storage;
}
@Override
public void finish() {
if (CLOSED_UPDATER.compareAndSet(this, OPEN, CLOSED)) {
if (span.isTimeRecording()) {
span.markAfterTime();
}
this.storage.store(this.span);
this.storage.close();
}
}
}