/* Copyright (c) 2001-2007, The HSQL Development Group
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


package org.hsqldb.util.preprocessor;

import java.io.File;
import java.io.IOException;

/* $Id: BasicResolver.java 610 2008-12-22 15:54:18Z unsaved $ */

/**
 * Resolves paths using a parent directory; does not resolve properties.
 *
 * @author boucherb@users
 * @version 1.8.1
 * @since 1.8.1
 */
class BasicResolver implements IResolver {
    File parentDir;

    public BasicResolver(File parentDir) {
        this.parentDir = parentDir;
    }

    public String resolveProperties(String expression) {
        return expression;
    }
    public File resolveFile(String path) {
        File file = new File(path);

        if (parentDir != null && !file.isAbsolute()) {
            try {
                path = this.parentDir.getCanonicalPath()
                       + File.separatorChar
                       + path;

                file = new File(path);
            } catch (IOException ex) {
                path = this.parentDir.getAbsolutePath()
                       + File.separatorChar
                       + path;

                file = new File(path);
            }
        }

        try {
            return file.getCanonicalFile();
        } catch (Exception e) {
            return file.getAbsoluteFile();
        }
    }
}