/*
* 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.solr.util;
import java.lang.invoke.MethodHandles;
import org.apache.lucene.index.MergePolicy;
import org.apache.lucene.index.MergePolicyWrapper;
import org.apache.lucene.util.LuceneTestCase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A {@link MergePolicy} with a no-arg constructor that proxies to an
* instance retrieved from {@link LuceneTestCase#newMergePolicy}.
* Solr tests utilizing the Lucene randomized test framework can refer
* to this class in solrconfig.xml to get a fully randomized merge policy.
*/
public class RandomMergePolicy extends MergePolicyWrapper {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
public RandomMergePolicy() {
this(LuceneTestCase.newMergePolicy());
}
protected RandomMergePolicy(MergePolicy inner) {
super(inner);
log.info("RandomMergePolicy wrapping {}: {}", inner.getClass(), inner);
}
}