SymfonyFileLocator.php

<?php

/*
 * 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.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the MIT license. For more information, see
 * <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Persistence\Mapping\Driver;

use Doctrine\Common\Persistence\Mapping\MappingException;

/**
 * The Symfony File Locator makes a simplifying assumptions compared
 * to the DefaultFileLocator. By assuming paths only contain entities of a certain
 * namespace the mapping files consists of the short classname only.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 * @license MIT
 */
class SymfonyFileLocator implements FileLocator {

  /**
   * The paths where to look for mapping files.
   *
   * @var array
   */
  protected $paths = array();

  /**
   * A map of mapping directory path to namespace prefix used to expand class shortnames.
   *
   * @var array
   */
  protected $prefixes = array();

  /**
   * File extension that is searched for.
   *
   * @var string
   */
  protected $fileExtension;

  /**
   * Constructor
   *
   * @param array $prefixes
   * @param string|null $fileExtension
   */
  public function __construct(array $prefixes, $fileExtension = null) {
    $this
      ->addNamespacePrefixes($prefixes);
    $this->fileExtension = $fileExtension;
  }

  /**
   * Add Namespace Prefixes
   *
   * @param array $prefixes
   */
  public function addNamespacePrefixes(array $prefixes) {
    $this->prefixes = array_merge($this->prefixes, $prefixes);
    $this->paths = array_merge($this->paths, array_keys($prefixes));
  }

  /**
   * Get Namespace Prefixes
   *
   * @return array
   */
  public function getNamespacePrefixes() {
    return $this->prefixes;
  }

  /**
   * {@inheritDoc}
   */
  public function getPaths() {
    return $this->paths;
  }

  /**
   * {@inheritDoc}
   */
  public function getFileExtension() {
    return $this->fileExtension;
  }

  /**
   * Set the file extension used to look for mapping files under
   *
   * @param string $fileExtension The file extension to set
   * @return void
   */
  public function setFileExtension($fileExtension) {
    $this->fileExtension = $fileExtension;
  }

  /**
   * {@inheritDoc}
   */
  public function fileExists($className) {
    $defaultFileName = str_replace('\\', '.', $className) . $this->fileExtension;
    foreach ($this->paths as $path) {
      if (!isset($this->prefixes[$path])) {

        // global namespace class
        if (is_file($path . DIRECTORY_SEPARATOR . $defaultFileName)) {
          return true;
        }
        continue;
      }
      $prefix = $this->prefixes[$path];
      if (0 !== strpos($className, $prefix . '\\')) {
        continue;
      }
      $filename = $path . '/' . strtr(substr($className, strlen($prefix) + 1), '\\', '.') . $this->fileExtension;
      return is_file($filename);
    }
    return false;
  }

  /**
   * {@inheritDoc}
   */
  public function getAllClassNames($globalBasename = null) {
    $classes = array();
    if ($this->paths) {
      foreach ((array) $this->paths as $path) {
        if (!is_dir($path)) {
          throw MappingException::fileMappingDriversRequireConfiguredDirectoryPath($path);
        }
        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path), \RecursiveIteratorIterator::LEAVES_ONLY);
        foreach ($iterator as $file) {
          $fileName = $file
            ->getBasename($this->fileExtension);
          if ($fileName == $file
            ->getBasename() || $fileName == $globalBasename) {
            continue;
          }

          // NOTE: All files found here means classes are not transient!
          if (isset($this->prefixes[$path])) {
            $classes[] = $this->prefixes[$path] . '\\' . str_replace('.', '\\', $fileName);
          }
          else {
            $classes[] = str_replace('.', '\\', $fileName);
          }
        }
      }
    }
    return $classes;
  }

  /**
   * {@inheritDoc}
   */
  public function findMappingFile($className) {
    $defaultFileName = str_replace('\\', '.', $className) . $this->fileExtension;
    foreach ($this->paths as $path) {
      if (!isset($this->prefixes[$path])) {
        if (is_file($path . DIRECTORY_SEPARATOR . $defaultFileName)) {
          return $path . DIRECTORY_SEPARATOR . $defaultFileName;
        }
        continue;
      }
      $prefix = $this->prefixes[$path];
      if (0 !== strpos($className, $prefix . '\\')) {
        continue;
      }
      $filename = $path . '/' . strtr(substr($className, strlen($prefix) + 1), '\\', '.') . $this->fileExtension;
      if (is_file($filename)) {
        return $filename;
      }
      throw MappingException::mappingFileNotFound($className, $filename);
    }
    throw MappingException::mappingFileNotFound($className, substr($className, strrpos($className, '\\') + 1) . $this->fileExtension);
  }

}