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A module that is everything required to understands Druid Segments
/*
* 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;
import org.apache.druid.java.util.common.logger.Logger;
/**
*/
@Deprecated
public class ReflectionQueryToolChestWarehouse implements QueryToolChestWarehouse
{
private static final Logger log = new Logger(ReflectionQueryToolChestWarehouse.class);
private final ClassValue> toolChests = new ClassValue>()
{
@Override
protected QueryToolChest computeValue(Class type)
{
try {
final Class queryToolChestClass = Class.forName(type.getName() + "QueryToolChest");
return (QueryToolChest) queryToolChestClass.newInstance();
}
catch (Exception e) {
log.warn(e, "Unable to load interface[QueryToolChest] for input class[%s]", type);
throw new RuntimeException(e);
}
}
};
@Override
@SuppressWarnings("unchecked")
public > QueryToolChest getToolChest(QueryType query)
{
return (QueryToolChest) toolChests.get(query.getClass());
}
}