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package com.github.ocraft.s2client.test;

/*-
 * #%L
 * ocraft-s2client-test
 * %%
 * Copyright (C) 2017 - 2018 Ocraft Project
 * %%
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * #L%
 */

import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Optional;

public final class TestFiles {

    private TestFiles() {
        throw new AssertionError("private constructor");
    }

    public static URI relativeFile(String fileName) {
        URL resource = TestFiles.class.getClassLoader().getResource(fileName);
        return Optional.ofNullable(resource)
                .map(TestFiles::asUri)
                .orElseThrow(() -> new IllegalArgumentException("file [" + fileName + "]"));
    }

    private static URI asUri(URL url) {
        try {
            return url.toURI();
        } catch (URISyntaxException e) {
            throw new IllegalArgumentException(e);
        }
    }

}