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<?php /** * File containing the ezcBaseMetaData class. * * @package Base * @version 1.8 * @copyright Copyright (C) 2005-2009 eZ Systems AS. All rights reserved. * @license http://ez.no/licenses/new_bsd New BSD License */ /** * Base class implements ways of fetching information about the installed * eZ Components. It knows whether to use the PEAR registry or the bundled XML * file, depending on how eZ Components is installed. * * @package Base * @version 1.8 * @mainclass */ class ezcBaseMetaData { /** * Creates a ezcBaseMetaData object * * The sole parameter $installMethod should only be used if you are really * sure that you need to use it. It is mostly there to make testing at * least slightly possible. Again, do not set it unless instructed. * * @param string $installMethod */ public function __construct( $installMethod = NULL ) { $installMethod = $installMethod !== NULL ? $installMethod : ezcBase::getInstallMethod(); // figure out which reader to use switch ( $installMethod ) { case 'tarball': $this->reader = new ezcBaseMetaDataTarballReader; break; case 'pear': $this->reader = new ezcBaseMetaDataPearReader; break; default: throw new ezcBaseMetaDataReaderException( "Unknown install method '$installMethod'." ); break; } } /** * Returns the version string for the installed eZ Components bundle. * * A version string such as "2008.2.2" is returned. * * @return string */ public function getBundleVersion() { return $this->reader->getBundleVersion(); } /** * Returns a PHP version string that describes the required PHP version for * this installed eZ Components bundle. * * @return string */ public function getRequiredPhpVersion() { return $this->reader->getRequiredPhpVersion(); } /** * Returns whether $componentName is installed * * If installed with PEAR, it checks the PEAR registry whether the * component is there. In case the tarball installation method is used, it * will return true for every component that exists (because all of them * are then available). * * @return bool */ public function isComponentInstalled( $componentName ) { return $this->reader->isComponentInstalled( $componentName ); } /** * Returns the version string of the available $componentName or false when * the component is not installed. * * @return string */ public function getComponentVersion( $componentName ) { return $this->reader->getComponentVersion( $componentName ); } /** * Returns a list of components that $componentName depends on. * * If $componentName is left empty, all installed components are returned. * * The returned array has as keys the component names, and as values the * version of the components. * * @return array(string=>string). */ public function getComponentDependencies( $componentName = null ) { if ( $componentName === null ) { return $this->reader->getComponentDependencies(); } else { return $this->reader->getComponentDependencies( $componentName ); } } } ?>