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<?php /* * $Id: ExtendSelector.php 277 2007-11-01 01:25:23Z hans $ * * 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 LGPL. For more information please see * <http://phing.info>. */ include_once 'phing/util/StringHelper.php'; /** * Selector that selects files by forwarding the request on to other classes. * * TODO - Consider adding Path (phing.types.Path) support to this class * and to the Mappers class. See Ant versions for implimentation details. * * @author Hans Lellelid <hans@xmpl.org> (Phing) * @author Bruce Atherton <bruce@callenish.com> (Ant) * @package phing.types.selectors */ class ExtendSelector extends BaseSelector { private $classname; private $dynselector; private $parameters = array(); /** * Sets the classname of the custom selector. * * @param classname is the class which implements this selector */ public function setClassname($classname) { $this->classname = $classname; } /** * Instantiates the identified custom selector class. */ public function selectorCreate() { if ($this->classname !== null && $this->classname !== "") { try { // assume it's fully qualified, import it $cls = Phing::import($this->classname); // make sure class exists if (class_exists($cls)) { $this->dynselector = new $cls(); } else { $this->setError("Selector " . $this->classname . " not initialized, no such class"); } } catch (Exception $e) { $this->setError("Selector " . $this->classname . " not initialized, could not create class: " . $e->getMessage()); } } else { $this->setError("There is no classname specified"); } } /** * Create new parameters to pass to custom selector. * * @param p The new Parameter object */ public function addParam(Parameter $p) { $this->parameters[] = $p; } /** * These are errors specific to ExtendSelector only. If there are * errors in the custom selector, it should throw a BuildException * when isSelected() is called. */ public function verifySettings() { // Creation is done here rather than in isSelected() because some // containers may do a validation pass before running isSelected(), // but we need to check for the existence of the created class. if ($this->dynselector === null) { $this->selectorCreate(); } if (empty($this->classname)) { $this->setError("The classname attribute is required"); } elseif ($this->dynselector === null) { $this->setError("Internal Error: The custom selector was not created"); } elseif ( !($this->dynselector instanceof ExtendFileSelector) && (count($this->parameters) > 0)) { $this->setError("Cannot set parameters on custom selector that does not " . "implement ExtendFileSelector."); } } /** * Allows the custom selector to choose whether to select a file. This * is also where the Parameters are passed to the custom selector. * * @throws BuildException */ public function isSelected(PhingFile $basedir, $filename, PhingFile $file) { $this->validate(); if (count($this->parameters) > 0 && $this->dynselector instanceof ExtendFileSelector) { // We know that dynselector must be non-null if no error message $this->dynselector->setParameters($this->parameters); } return $this->dynselector->isSelected($basedir, $filename, $file); } }
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