/**
* Licensed to Cloudera, Inc. under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Cloudera, Inc. 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 com.cloudera.util.dirwatcher;
import java.io.File;
import java.util.regex.Pattern;
/**
* This returns true if the filename (not the directory part) matches the
* specified regular expression.
*
* This class is not thread safe because pattern is not thread safe.
*/
public class RegexFileFilter implements FileFilter {
Pattern p; // not thread safe
public RegexFileFilter(String regex) {
this.p = Pattern.compile(regex);
}
@Override
public boolean isSelected(File f) {
return p.matcher(f.getName()).matches();
}
}