FileTools.java

/* Copyright (c) 2011 Danish Maritime Authority.
 *
 * 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 net.maritimecloud.internal.msdl.compiler.mavenplugin;

import static java.lang.Math.max;

import java.io.File;
import java.util.Set;

/**
 *
 * @author Kasper Nielsen
 */
class FileTools {


    /**
     * Returns timestamp for the most recently modified file in the given set.
     * 
     * @param files
     *            a set of file descriptors.
     * @return timestamp of the most recently modified file.
     */
    static long lastModified(Set<File> files) {
        long result = 0;
        for (File file : files) {
            result = max(result, file.lastModified());
        }
        return result;
    }
}