/*
 * This file is part of ***  M y C o R e  ***
 * See http://www.mycore.de/ for details.
 *
 * MyCoRe is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MyCoRe 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MyCoRe.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.mycore.datamodel.niofs.utils;

import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.FileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.ArrayList;

public class MCRFileCollectingFileVisitor<T> implements FileVisitor<T> {

    private final ArrayList<T> paths;

    public MCRFileCollectingFileVisitor() {
        paths = new ArrayList<>();
    }

    public ArrayList<T> getPaths() {
        return paths;
    }

    @Override
    public FileVisitResult preVisitDirectory(T dir, BasicFileAttributes attrs) {
        return FileVisitResult.CONTINUE;
    }

    @Override
    public FileVisitResult visitFile(T file, BasicFileAttributes attrs) {
        paths.add(file);
        return FileVisitResult.CONTINUE;
    }

    @Override
    public FileVisitResult visitFileFailed(T file, IOException exc) {
        return FileVisitResult.TERMINATE;
    }

    @Override
    public FileVisitResult postVisitDirectory(T dir, IOException exc) {
        return FileVisitResult.CONTINUE;
    }
}
