NFolderRegular.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
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 * under the terms of the GNU General Public License as published by
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 *
 * PlantUML 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 this library; if not, write to the Free Software
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 * Original Author:  Arnaud Roques
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package net.sourceforge.plantuml.nio;

import java.io.IOException;
import java.nio.file.Path;
import java.util.Objects;

import net.sourceforge.plantuml.security.SFile;

public class NFolderRegular implements NFolder {

	private final Path dir;

	public NFolderRegular(Path dir) {
		this.dir = Objects.requireNonNull(dir);
	}

	@Override
	public InputFile getInputFile(Path nameOrPath) throws IOException {
		final SFile result;
		if (nameOrPath.isAbsolute())
			result = SFile.fromFile(nameOrPath.toFile());
		else
			result = SFile.fromFile(dir.resolve(nameOrPath).toFile());

		if (result.canRead())
			return result;
		
		return null;

	}

	@Override
	public NFolder getSubfolder(Path nameOrPath) throws IOException {
		final Path sub = dir.resolve(nameOrPath).normalize();
		return new NFolderRegular(sub);
	}

	@Override
	public String toString() {
		return "NFolderRegular[" + dir + "]";
	}

}