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1) Create DirectClientQuerySegmentWalker to make it a bit easier to embed and use DirectDruidClient as a client.

This commit is contained in:
Eric Tschetter 2012-12-28 10:50:40 -06:00
parent b4a1bb4a00
commit 3bfbcbe95c
1 changed files with 63 additions and 0 deletions
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client/src/main/java/com/metamx/druid/http/DirectClientQuerySegmentWalker.java Normal file
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/*
* Druid - a distributed column store.
* Copyright (C) 2012 Metamarkets Group Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package com.metamx.druid.http;
import com.metamx.druid.Query;
import com.metamx.druid.client.DirectDruidClient;
import com.metamx.druid.query.FinalizeResultsQueryRunner;
import com.metamx.druid.query.QueryRunner;
import com.metamx.druid.query.QueryToolChestWarehouse;
import com.metamx.druid.query.segment.QuerySegmentWalker;
import com.metamx.druid.query.segment.SegmentDescriptor;
import org.joda.time.Interval;
/**
*/
public class DirectClientQuerySegmentWalker implements QuerySegmentWalker
{
private final QueryToolChestWarehouse warehouse;
private final DirectDruidClient baseClient;
public DirectClientQuerySegmentWalker(
QueryToolChestWarehouse warehouse,
DirectDruidClient baseClient
)
{
this.warehouse = warehouse;
this.baseClient = baseClient;
}
@Override
public <T> QueryRunner<T> getQueryRunnerForIntervals(Query<T> query, Iterable<Interval> intervals)
{
return makeRunner(query);
}
@Override
public <T> QueryRunner<T> getQueryRunnerForSegments(Query<T> query, Iterable<SegmentDescriptor> specs)
{
return makeRunner(query);
}
private <T> FinalizeResultsQueryRunner<T> makeRunner(final Query<T> query)
{
return new FinalizeResultsQueryRunner<T>(baseClient, warehouse.getToolChest(query));
}
}