/*
* 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.lucene.index;
import java.io.IOException;
import java.util.Random;
/**
* A {@link DirectoryReader} that wraps all its subreaders with
* {@link MismatchedLeafReader}
*/
public class MismatchedDirectoryReader extends FilterDirectoryReader {
static class MismatchedSubReaderWrapper extends SubReaderWrapper {
final Random random;
MismatchedSubReaderWrapper(Random random) {
this.random = random;
}
@Override
public LeafReader wrap(LeafReader reader) {
return new MismatchedLeafReader(reader, random);
}
}
public MismatchedDirectoryReader(DirectoryReader in, Random random) throws IOException {
super(in, new MismatchedSubReaderWrapper(random));
}
@Override
protected DirectoryReader doWrapDirectoryReader(DirectoryReader in) throws IOException {
return new AssertingDirectoryReader(in);
}
@Override
public CacheHelper getReaderCacheHelper() {
return in.getReaderCacheHelper();
}
}