/*
* 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 gobblin.util.filters;
import java.util.regex.Pattern;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PathFilter;
import lombok.ToString;
/**
* Use a regex to filter {@link Path}. If {@link #include} is set to true, include {@link Path} that matches the regex.
* Otherwise, include {@link Path} that does not match the regex.
*/
@ToString
public class RegexPathFilter implements PathFilter {
private final Pattern regex;
private final boolean include;
public RegexPathFilter(String regex) {
this(regex, true);
}
public RegexPathFilter(String regex, boolean include) {
this.regex = Pattern.compile(regex);
this.include = include;
}
@Override
public boolean accept(Path path) {
boolean matches = this.regex.matcher(path.getName()).matches();
return include ? matches : !matches;
}
}