org.apache.solr.core.NRTCachingDirectoryFactory Maven / Gradle / Ivy
/*
* 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.core;
import java.io.File;
import java.io.IOException;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.LockFactory;
import org.apache.lucene.store.NRTCachingDirectory;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
/**
* Factory to instantiate {@link org.apache.lucene.store.NRTCachingDirectory}
*/
public class NRTCachingDirectoryFactory extends StandardDirectoryFactory {
public static final int DEFAULT_MAX_MERGE_SIZE_MB = 4;
private double maxMergeSizeMB = DEFAULT_MAX_MERGE_SIZE_MB;
public static final int DEFAULT_MAX_CACHED_MB = 48;
private double maxCachedMB = DEFAULT_MAX_CACHED_MB;
@Override
public void init(NamedList args) {
super.init(args);
SolrParams params = args.toSolrParams();
maxMergeSizeMB = params.getDouble("maxMergeSizeMB", DEFAULT_MAX_MERGE_SIZE_MB);
if (maxMergeSizeMB <= 0){
throw new IllegalArgumentException("maxMergeSizeMB must be greater than 0");
}
maxCachedMB = params.getDouble("maxCachedMB", DEFAULT_MAX_CACHED_MB);
if (maxCachedMB <= 0){
throw new IllegalArgumentException("maxCachedMB must be greater than 0");
}
}
@Override
protected Directory create(String path, LockFactory lockFactory, DirContext dirContext) throws IOException {
// we pass NoLockFactory, because the real lock factory is set later by injectLockFactory:
return new NRTCachingDirectory(FSDirectory.open(new File(path).toPath(), lockFactory), maxMergeSizeMB, maxCachedMB);
}
@Override
public boolean isAbsolute(String path) {
return new File(path).isAbsolute();
}
}