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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.solr.common.util;
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import java.io.FileFilter;
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import java.util.regex.*;
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* Accepts any file whose name matches the pattern
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* @version $Id: RegexFileFilter.java 1065312 2011-01-30 16:08:25Z rmuir $
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public final class RegexFileFilter implements FileFilter {
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final Pattern pattern;
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public RegexFileFilter(String regex) {
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this(Pattern.compile(regex));
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public RegexFileFilter(Pattern regex) {
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public boolean accept(File f) {
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return pattern.matcher(f.getName()).matches();
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public String toString() {
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return "regex:" + pattern.toString();