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/*
* Copyright 2017, OpenCensus 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.opencensus.implcore.trace.export;
import io.opencensus.common.Duration;
import io.opencensus.implcore.internal.EventQueue;
import io.opencensus.trace.export.ExportComponent;
import io.opencensus.trace.export.RunningSpanStore;
import io.opencensus.trace.export.SampledSpanStore;
/** Implementation of the {@link ExportComponent}. */
public final class ExportComponentImpl extends ExportComponent {
private static final int EXPORTER_BUFFER_SIZE = 32;
// Enforces that trace export exports data at least once every 5 seconds.
private static final Duration EXPORTER_SCHEDULE_DELAY = Duration.create(5, 0);
private final SpanExporterImpl spanExporter;
private final RunningSpanStoreImpl runningSpanStore;
private final SampledSpanStoreImpl sampledSpanStore;
@Override
public SpanExporterImpl getSpanExporter() {
return spanExporter;
}
@Override
public RunningSpanStoreImpl getRunningSpanStore() {
return runningSpanStore;
}
@Override
public SampledSpanStoreImpl getSampledSpanStore() {
return sampledSpanStore;
}
@Override
public void shutdown() {
sampledSpanStore.shutdown();
spanExporter.shutdown();
}
/**
* Returns a new {@code ExportComponentImpl} that has valid instances for {@link RunningSpanStore}
* and {@link SampledSpanStore}.
*
* @return a new {@code ExportComponentImpl}.
*/
public static ExportComponentImpl createWithInProcessStores(EventQueue eventQueue) {
return new ExportComponentImpl(true, eventQueue);
}
/**
* Returns a new {@code ExportComponentImpl} that has {@code null} instances for {@link
* RunningSpanStore} and {@link SampledSpanStore}.
*
* @return a new {@code ExportComponentImpl}.
*/
public static ExportComponentImpl createWithoutInProcessStores(EventQueue eventQueue) {
return new ExportComponentImpl(false, eventQueue);
}
/**
* Constructs a new {@code ExportComponentImpl}.
*
* @param supportInProcessStores {@code true} to instantiate {@link RunningSpanStore} and {@link
* SampledSpanStore}.
*/
private ExportComponentImpl(boolean supportInProcessStores, EventQueue eventQueue) {
this.spanExporter = SpanExporterImpl.create(EXPORTER_BUFFER_SIZE, EXPORTER_SCHEDULE_DELAY);
this.runningSpanStore =
supportInProcessStores
? new InProcessRunningSpanStoreImpl()
: RunningSpanStoreImpl.getNoopRunningSpanStoreImpl();
this.sampledSpanStore =
supportInProcessStores
? new InProcessSampledSpanStoreImpl(eventQueue)
: SampledSpanStoreImpl.getNoopSampledSpanStoreImpl();
}
}
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