zipkin.storage.cassandra.CompositeIndexer Maven / Gradle / Ivy
/**
* Copyright 2015-2017 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.cassandra;
import com.datastax.driver.core.Session;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheBuilderSpec;
import com.google.common.collect.ImmutableSet;
import com.google.common.util.concurrent.ListenableFuture;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;
import zipkin.Span;
import zipkin.internal.Nullable;
import zipkin.internal.Pair;
final class CompositeIndexer {
private final Set indexers;
// Shared across all threads as updates can come from any thread.
// Shared for all indexes to make data management easier (ex. maximumSize)
private final ConcurrentMap> sharedState;
CompositeIndexer(Session session, CacheBuilderSpec spec, int bucketCount,
@Nullable Integer indexTtl) {
this.sharedState = spec == null ? null :
CacheBuilder.from(spec).>build().asMap();
Indexer.Factory factory = new Indexer.Factory(session, indexTtl, sharedState);
this.indexers = ImmutableSet.of(
factory.create(new InsertTraceIdByServiceName(bucketCount)),
factory.create(new InsertTraceIdBySpanName()),
factory.create(new InsertTraceIdByAnnotation(bucketCount))
);
}
ImmutableSet> index(List spans) {
ImmutableSet.Builder> result = ImmutableSet.builder();
for (Indexer optimizer : indexers) {
result.addAll(optimizer.index(spans));
}
return result.build();
}
public void clear() {
sharedState.clear();
}
}