zipkin.storage.StorageAdapters Maven / Gradle / Ivy
/*
* Copyright 2015-2018 The OpenZipkin 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 zipkin.storage;
import java.util.List;
import java.util.concurrent.Executor;
import zipkin.Span;
/** Adapters that convert storage components. */
public final class StorageAdapters {
// Exposed as this project isn't Java 8. Otherwise, it would be Consumer>
public interface SpanConsumer {
/** Like {@link AsyncSpanConsumer#accept}, except blocking. Invoked by an executor. */
void accept(List spans);
}
public static AsyncSpanStore blockingToAsync(SpanStore delegate, Executor executor) {
if (delegate instanceof InternalAsyncToBlockingSpanStoreAdapter) {
return ((InternalAsyncToBlockingSpanStoreAdapter) delegate).delegate;
}
return new InternalBlockingToAsyncSpanStoreAdapter(delegate, executor);
}
public static AsyncSpanConsumer blockingToAsync(SpanConsumer delegate, Executor executor) {
return new InternalBlockingToAsyncSpanConsumerAdapter(delegate, executor);
}
public static SpanStore asyncToBlocking(AsyncSpanStore delegate) {
if (delegate instanceof InternalBlockingToAsyncSpanStoreAdapter) {
return ((InternalBlockingToAsyncSpanStoreAdapter) delegate).delegate;
}
return new InternalAsyncToBlockingSpanStoreAdapter(delegate);
}
private StorageAdapters() {
}
}