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<?php /* * $Id: MajoritySelector.php 123 2006-09-14 20:19:08Z mrook $ * * 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>. */ /** * This selector is here just to shake up your thinking a bit. Don't get * too caught up in boolean, there are other ways you can evaluate a * collection of selectors. This one takes a vote of the selectors it * contains, and majority wins. You could also have an "all-but-one" * selector, a "weighted-average" selector, and so on. These are left * as exercises for the reader (as are the usecases where this would * be necessary). * * @author Hans Lellelid <hans@xmpl.org> (Phing) * @author Bruce Atherton <bruce@callenish.com> (Ant) * @package phing.types.selectors */ class MajoritySelector extends BaseSelectorContainer { private $allowtie = true; public function toString() { $buf = ""; if ($this->hasSelectors()) { $buf .= "{majorityselect: "; $buf .= parent::toString(); $buf .= "}"; } return $buf; } public function setAllowtie($tiebreaker) { $this->allowtie = $tiebreaker; } /** * Returns true (the file is selected) if most of the other selectors * agree. In case of a tie, go by the allowtie setting. That defaults * to true, meaning in case of a tie, the file is selected. * * @param basedir the base directory the scan is being done from * @param filename is the name of the file to check * @param file is a PhingFile object for the filename that the selector * can use * @return whether the file should be selected or not */ public function isSelected(PhingFile $basedir, $filename, PhingFile $file) { $this->validate(); $yesvotes = 0; $novotes = 0; $selectors = $this->selectorElements(); for($i=0,$size=count($selectors); $i < $size; $i++) { $result = $selectors[$i]->isSelected($basedir,$filename,$file); if ($result) { $yesvotes = $yesvotes + 1; } else { $novotes = $novotes + 1; } } if ($yesvotes > $novotes) { return true; } else if ($novotes > $yesvotes) { return false; } // At this point, we know we have a tie. return $this->allowtie; } }
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