io.druid.query.DefaultGenericQueryMetricsFactory Maven / Gradle / Ivy
/*
* Licensed to Metamarkets Group Inc. (Metamarkets) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Metamarkets licenses this file
* to you 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.druid.query;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.annotations.VisibleForTesting;
import com.google.inject.Inject;
import io.druid.guice.LazySingleton;
import io.druid.guice.annotations.Json;
import io.druid.jackson.DefaultObjectMapper;
@LazySingleton
public class DefaultGenericQueryMetricsFactory implements GenericQueryMetricsFactory
{
private static final GenericQueryMetricsFactory INSTANCE =
new DefaultGenericQueryMetricsFactory(new DefaultObjectMapper());
/**
* Should be used only in tests, directly or indirectly (e. g. in {@link
* io.druid.query.search.SearchQueryQueryToolChest#SearchQueryQueryToolChest(
* io.druid.query.search.SearchQueryConfig, IntervalChunkingQueryRunnerDecorator)}).
*/
@VisibleForTesting
public static GenericQueryMetricsFactory instance()
{
return INSTANCE;
}
private final ObjectMapper jsonMapper;
@Inject
public DefaultGenericQueryMetricsFactory(@Json ObjectMapper jsonMapper)
{
this.jsonMapper = jsonMapper;
}
@Override
public QueryMetrics> makeMetrics(Query query)
{
DefaultQueryMetrics> queryMetrics = new DefaultQueryMetrics<>(jsonMapper);
queryMetrics.query(query);
return queryMetrics;
}
}