/*
* The MIT License
*
* Copyright 2013 Mirko Friedenhagen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.plugins.jobConfigHistory;
import java.io.File;
import java.io.FileFilter;
/**
* A filter to return only those directories of a file listing that represent
* configuration history directories.
*
* @author Mirko Friedenhagen
*/
public class HistoryFileFilter implements FileFilter {
/** Singleton. */
public static final HistoryFileFilter INSTANCE = new HistoryFileFilter();
@Override
public boolean accept(File file) {
return file.exists()
&& new File(file, JobConfigHistoryConsts.HISTORY_FILE).exists();
}
/**
* Is file a history directory?
*
* @param file
* to inspect
* @return true, when file denotes a history directory.
*/
public static boolean accepts(File file) {
return INSTANCE.accept(file);
}
}