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<?php
/**
 * This file is part of PHP Mess Detector.
 *
 * Copyright (c) 2008-2012, Manuel Pichler <mapi@phpmd.org>.
 * 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 Manuel Pichler nor the names of his
 *     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 THE
 * COPYRIGHT OWNER 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;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @author    Manuel Pichler <mapi@phpmd.org>
 * @copyright 2008-2014 Manuel Pichler. All rights reserved.
 * @license   http://www.opensource.org/licenses/bsd-license.php BSD License
 * @since     1.2.1
 */

namespace PHPMD;

/**
 * Simple data class that we use to keep parsing errors for the report renderer.
 *
 * @author    Manuel Pichler <mapi@phpmd.org>
 * @copyright 2008-2014 Manuel Pichler. All rights reserved.
 * @license   http://www.opensource.org/licenses/bsd-license.php BSD License
 * @since     1.2.1
 */
class ProcessingError
{
    /**
     * The original processing error message.
     *
     * @var string
     */
    private $message;

    /**
     * The source file where the processing error occurred.
     *
     * @var string
     */
    private $file;

    /**
     * Constructs a new processing error instance.
     *
     * @param string $message
     */
    public function __construct($message)
    {
        $this->message = $message;
        $this->file    = $this->extractFile($message);
    }

    /**
     * Returns the source file where the processing error occurred.
     *
     * @return string
     */
    public function getFile()
    {
        return $this->file;
    }

    /**
     * Returns the original processing error message.
     *
     * @return string
     */
    public function getMessage()
    {
        return $this->message;
    }

    /**
     * Evil hack that extracts the source file from the original exception
     * message. This method should be removed once we have added the source file
     * as a mandatory property to PDepend's exceptions.
     *
     * @param string $message
     * @return string
     */
    private function extractFile($message)
    {
        preg_match('(file: (.+)\.$| file "([^"]+)")', $message, $match);

        $match = array_values(array_filter($match));
        if (isset($match[1])) {
            return $match[1];
        }
        return '';
    }
}