/*
 * Copyright (c) 2011, The Broad Institute
 *
 * 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.
 */

package org.broadinstitute.sting.utils.io;

import java.io.File;

/**
 * Stores a resource by path and a relative class.
 */
public class Resource {
    private final String path;
    private final Class<?> relativeClass;

    /**
     * Create a resource with a path and a relative class.
     * @param path Relative or absolute path to the class.
     * @param relativeClass Relative class to use as a class loader and for a relative package.
     *
     * If the relative class is null then the system classloader will be used and the path must be absolute.
     */
    public Resource(String path, Class<?> relativeClass) {
        this.path = path;
        this.relativeClass = relativeClass;
    }

    public Class<?> getRelativeClass() {
        return relativeClass;
    }

    public String getPath() {
        return path;
    }

    public String getFullPath() {
        if (relativeClass == null)
            return path;
        if (new File(path).isAbsolute())
            return path;
        return String.format("%s%s%s",
                relativeClass.getPackage().getName().replace('.', File.separatorChar),
                File.separator,
                path);
    }
}
