/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* 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 com.linkedin.pinot.core.query.pruner;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.configuration.Configuration;
/**
* A static SegmentPrunerProvider will give SegmentPruner instance based on prunerClassName and configuration.
*
*
*/
public class SegmentPrunerProvider {
private SegmentPrunerProvider() {
}
private static final Map<String, Class<? extends SegmentPruner>> PRUNER_MAP = new HashMap<>();
static {
PRUNER_MAP.put("columnvaluesegmentpruner", ColumnValueSegmentPruner.class);
PRUNER_MAP.put("dataschemasegmentpruner", DataSchemaSegmentPruner.class);
PRUNER_MAP.put("validsegmentpruner", ValidSegmentPruner.class);
PRUNER_MAP.put("partitionsegmentpruner", PartitionSegmentPruner.class);
}
public static SegmentPruner getSegmentPruner(String prunerClassName, Configuration segmentPrunerConfig) {
try {
Class<? extends SegmentPruner> cls = PRUNER_MAP.get(prunerClassName.toLowerCase());
if (cls != null) {
SegmentPruner segmentPruner = cls.newInstance();
segmentPruner.init(segmentPrunerConfig);
return segmentPruner;
}
} catch (Exception ex) {
throw new RuntimeException("Not support SegmentPruner type with - " + prunerClassName, ex);
}
throw new UnsupportedOperationException("No SegmentPruner type with - " + prunerClassName);
}
}