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Provides common utility functions

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/*
 * Copyright (c) CQSE GmbH
 *
 * Licensed 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 org.conqat.lib.commons.filesystem;

import java.io.File;
import java.util.Comparator;

/**
 * Compares files based on the lexical order of their fully qualified names. Files must not be null.
 * 
 * @author juergens
 */
public class FilenameComparator implements Comparator {

	/** {@inheritDoc} */
	@Override
	public int compare(File file1, File file2) {
		if (file1 == null || file2 == null) {
			throw new IllegalArgumentException("Files must not be null");
		}

		return file1.getAbsolutePath().compareTo(file2.getAbsolutePath());
	}
}