/**
* 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.hadoop.contrib.index.lucene;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PathFilter;
import org.apache.lucene.index.IndexFileNameFilter;
/**
* A wrapper class to convert an IndexFileNameFilter which implements
* java.io.FilenameFilter to an org.apache.hadoop.fs.PathFilter.
*/
class LuceneIndexFileNameFilter implements PathFilter {
private static final LuceneIndexFileNameFilter singleton =
new LuceneIndexFileNameFilter();
/**
* Get a static instance.
* @return the static instance
*/
public static LuceneIndexFileNameFilter getFilter() {
return singleton;
}
private final IndexFileNameFilter luceneFilter;
private LuceneIndexFileNameFilter() {
luceneFilter = IndexFileNameFilter.getFilter();
}
/* (non-Javadoc)
* @see org.apache.hadoop.fs.PathFilter#accept(org.apache.hadoop.fs.Path)
*/
public boolean accept(Path path) {
return luceneFilter.accept(null, path.getName());
}
}