| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.druid.query.timeseries; |
| |
| import com.google.inject.Inject; |
| import org.apache.druid.java.util.common.ISE; |
| import org.apache.druid.java.util.common.guava.Sequence; |
| import org.apache.druid.query.ChainedExecutionQueryRunner; |
| import org.apache.druid.query.Query; |
| import org.apache.druid.query.QueryPlus; |
| import org.apache.druid.query.QueryProcessingPool; |
| import org.apache.druid.query.QueryRunner; |
| import org.apache.druid.query.QueryRunnerFactory; |
| import org.apache.druid.query.QueryToolChest; |
| import org.apache.druid.query.QueryWatcher; |
| import org.apache.druid.query.Result; |
| import org.apache.druid.query.context.ResponseContext; |
| import org.apache.druid.segment.Segment; |
| import org.apache.druid.segment.StorageAdapter; |
| |
| /** |
| */ |
| public class TimeseriesQueryRunnerFactory |
| implements QueryRunnerFactory<Result<TimeseriesResultValue>, TimeseriesQuery> |
| { |
| private final TimeseriesQueryQueryToolChest toolChest; |
| private final TimeseriesQueryEngine engine; |
| private final QueryWatcher queryWatcher; |
| |
| @Inject |
| public TimeseriesQueryRunnerFactory( |
| TimeseriesQueryQueryToolChest toolChest, |
| TimeseriesQueryEngine engine, |
| QueryWatcher queryWatcher |
| ) |
| { |
| this.toolChest = toolChest; |
| this.engine = engine; |
| this.queryWatcher = queryWatcher; |
| } |
| |
| @Override |
| public QueryRunner<Result<TimeseriesResultValue>> createRunner(final Segment segment) |
| { |
| return new TimeseriesQueryRunner(engine, segment.asStorageAdapter()); |
| } |
| |
| @Override |
| public QueryRunner<Result<TimeseriesResultValue>> mergeRunners( |
| QueryProcessingPool queryProcessingPool, |
| Iterable<QueryRunner<Result<TimeseriesResultValue>>> queryRunners |
| ) |
| { |
| return new ChainedExecutionQueryRunner<>(queryProcessingPool, queryWatcher, queryRunners); |
| } |
| |
| @Override |
| public QueryToolChest<Result<TimeseriesResultValue>, TimeseriesQuery> getToolchest() |
| { |
| return toolChest; |
| } |
| |
| private static class TimeseriesQueryRunner implements QueryRunner<Result<TimeseriesResultValue>> |
| { |
| private final TimeseriesQueryEngine engine; |
| private final StorageAdapter adapter; |
| |
| private TimeseriesQueryRunner(TimeseriesQueryEngine engine, StorageAdapter adapter) |
| { |
| this.engine = engine; |
| this.adapter = adapter; |
| } |
| |
| @Override |
| public Sequence<Result<TimeseriesResultValue>> run( |
| QueryPlus<Result<TimeseriesResultValue>> queryPlus, |
| ResponseContext responseContext |
| ) |
| { |
| Query<Result<TimeseriesResultValue>> input = queryPlus.getQuery(); |
| if (!(input instanceof TimeseriesQuery)) { |
| throw new ISE("Got a [%s] which isn't a %s", input.getClass(), TimeseriesQuery.class); |
| } |
| |
| return engine.process((TimeseriesQuery) input, adapter); |
| } |
| } |
| |
| } |