/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.common.lucene;
import org.apache.lucene.store.Directory;
import java.io.FileNotFoundException;
import java.io.IOException;
/**
* A set of utilities for Lucene {@link Directory}.
*
*
*/
public class Directories {
/**
* Returns the estimated size of a {@link Directory}.
*/
public static long estimateSize(Directory directory) throws IOException {
long estimatedSize = 0;
String[] files = directory.listAll();
for (String file : files) {
try {
estimatedSize += directory.fileLength(file);
} catch (FileNotFoundException e) {
// ignore, the file is not there no more
}
}
return estimatedSize;
}
private Directories() {
}
}