zipkin.storage.cassandra.InsertTraceIdBySpanName Maven / Gradle / Ivy
/**
* Copyright 2015-2016 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.BoundStatement;
import com.datastax.driver.core.querybuilder.Insert;
import com.datastax.driver.core.querybuilder.QueryBuilder;
import com.google.common.collect.ImmutableSet;
import java.util.Collections;
import java.util.Set;
import zipkin.Span;
// QueryRequest.spanName
final class InsertTraceIdBySpanName implements Indexer.IndexSupport {
@Override public String table() {
return Tables.SERVICE_SPAN_NAME_INDEX;
}
@Override public Insert declarePartitionKey(Insert insert) {
return insert.value("service_span_name", QueryBuilder.bindMarker("service_span_name"));
}
@Override
public BoundStatement bindPartitionKey(BoundStatement bound, String partitionKey) {
return bound.setString("service_span_name", partitionKey);
}
@Override
public Set partitionKeys(Span span) {
if (span.name.isEmpty()) return Collections.emptySet();
ImmutableSet.Builder result = ImmutableSet.builder();
for (String serviceName : span.serviceNames()) {
result.add(serviceName + "." + span.name);
}
return result.build();
}
}