GlobFilenameFilter.java example

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rapidminer-vega-master
/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.tools.io;

import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Pattern;

import com.rapidminer.tools.GlobCompiler;

/**
 * This filename filter interprets a given glob expression, to determine if 
 * a file should be accepted. Glob expressions are widely used in shells.
 * See {@link GlobCompiler} for more details about this language. 
 *
 * @author Sebastian Land
 */
public class GlobFilenameFilter implements FilenameFilter {

	private Pattern filenamePattern;
	private boolean includeDirectories = false;
	
	public GlobFilenameFilter(String glob) {
		filenamePattern = GlobCompiler.compileGlob(glob);
	}
	public GlobFilenameFilter(String glob, boolean includeDirectories) {
		filenamePattern = GlobCompiler.compileGlob(glob);
		this.includeDirectories = includeDirectories;
	}

	@Override
	public boolean accept(File dir, String name) {
		return filenamePattern.matcher(name.toLowerCase()).matches() && (includeDirectories || new File(dir, name).isFile());
	}

}