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Diffstat (limited to 'buildscripts/phing/classes/phing/types/selectors/SizeSelector.php')
| -rw-r--r-- | buildscripts/phing/classes/phing/types/selectors/SizeSelector.php | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/buildscripts/phing/classes/phing/types/selectors/SizeSelector.php b/buildscripts/phing/classes/phing/types/selectors/SizeSelector.php new file mode 100644 index 00000000..3aaf8a92 --- /dev/null +++ b/buildscripts/phing/classes/phing/types/selectors/SizeSelector.php @@ -0,0 +1,228 @@ +<?php + +/* + * $Id: 4969c98a4e03305a23770e2afd5da641999f6174 $ + * + * 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>. + */ + + +/** + * Selector that filters files based on their size. + * + * @author Hans Lellelid <hans@xmpl.org> (Phing) + * @author Bruce Atherton <bruce@callenish.com> (Ant) + * @package phing.types.selectors + */ +class SizeSelector extends BaseExtendSelector { + + private $size = -1; + private $multiplier = 1; + private $sizelimit = -1; + private $cmp = 2; + const SIZE_KEY = "value"; + const UNITS_KEY = "units"; + const WHEN_KEY = "when"; + + private static $sizeComparisons = array("less", "more", "equal"); + private static $byteUnits = array("K", "k", "kilo", "KILO", + "Ki", "KI", "ki", "kibi", "KIBI", + "M", "m", "mega", "MEGA", + "Mi", "MI", "mi", "mebi", "MEBI", + "G", "g", "giga", "GIGA", + "Gi", "GI", "gi", "gibi", "GIBI", + "T", "t", "tera", "TERA", + /* You wish! */ "Ti", "TI", "ti", "tebi", "TEBI" + ); + + public function toString() { + $buf = "{sizeselector value: "; + $buf .= $this->sizelimit; + $buf .= "compare: "; + if ($this->cmp === 0) { + $buf .= "less"; + } elseif ($this->cmp === 1) { + $buf .= "more"; + } else { + $buf .= "equal"; + } + $buf .= "}"; + return $buf; + } + + /** + * A size selector needs to know what size to base its selecting on. + * This will be further modified by the multiplier to get an + * actual size limit. + * + * @param size the size to select against expressed in units + */ + public function setValue($size) { + $this->size = $size; + if (($this->multiplier !== 0) && ($this->size > -1)) { + $this->sizelimit = $size * $this->multiplier; + } + } + + /** + * Sets the units to use for the comparison. This is a little + * complicated because common usage has created standards that + * play havoc with capitalization rules. Thus, some people will + * use "K" for indicating 1000's, when the SI standard calls for + * "k". Others have tried to introduce "K" as a multiple of 1024, + * but that falls down when you reach "M", since "m" is already + * defined as 0.001. + * <p> + * To get around this complexity, a number of standards bodies + * have proposed the 2^10 standard, and at least one has adopted + * it. But we are still left with a populace that isn't clear on + * how capitalization should work. + * <p> + * We therefore ignore capitalization as much as possible. + * Completely mixed case is not possible, but all upper and lower + * forms are accepted for all long and short forms. Since we have + * no need to work with the 0.001 case, this practice works here. + * <p> + * This function translates all the long and short forms that a + * unit prefix can occur in and translates them into a single + * multiplier. + * + * @param $units The units to compare the size to. + * @return void + */ + public function setUnits($units) { + $i = array_search($units, self::$byteUnits, true); + if ($i === false) $i = -1; // make it java-like + + $this->multiplier = 0; + if (($i > -1) && ($i < 4)) { + $this->multiplier = 1000; + } elseif (($i > 3) && ($i < 9)) { + $this->multiplier = 1024; + } elseif (($i > 8) && ($i < 13)) { + $this->multiplier = 1000000; + } elseif (($i > 12) && ($i < 18)) { + $this->multiplier = 1048576; + } elseif (($i > 17) && ($i < 22)) { + $this->multiplier = 1000000000; + } elseif (($i > 21) && ($i < 27)) { + $this->multiplier = 1073741824; + } elseif (($i > 26) && ($i < 31)) { + $this->multiplier = 1000000000000; + } elseif (($i > 30) && ($i < 36)) { + $this->multiplier = 1099511627776; + } + if (($this->multiplier > 0) && ($this->size > -1)) { + $this->sizelimit = $this->size * $this->multiplier; + } + } + + /** + * This specifies when the file should be selected, whether it be + * when the file matches a particular size, when it is smaller, + * or whether it is larger. + * + * @param cmp The comparison to perform, an EnumeratedAttribute + */ + public function setWhen($cmp) { + $c = array_search($cmp, self::$sizeComparisons, true); + if ($c !== false) { + $this->cmp = $c; + } + } + + /** + * When using this as a custom selector, this method will be called. + * It translates each parameter into the appropriate setXXX() call. + * + * @param parameters the complete set of parameters for this selector + */ + public function setParameters($parameters) { + parent::setParameters($parameters); + if ($parameters !== null) { + for ($i = 0, $size=count($parameters); $i < $size; $i++) { + $paramname = $parameters[$i]->getName(); + switch(strtolower($paramname)) { + case self::SIZE_KEY: + try { + $this->setValue($parameters[$i]->getValue()); + } catch (Exception $nfe) { + $this->setError("Invalid size setting " + . $parameters[$i]->getValue()); + } + break; + case self::UNITS_KEY: + $this->setUnits($parameters[$i]->getValue()); + break; + case self::WHEN_KEY: + $this->setWhen($parameters[$i]->getValue()); + break; + default: + $this->setError("Invalid parameter " . $paramname); + } + } + } + } + + /** + * <p>Checks to make sure all settings are kosher. In this case, it + * means that the size attribute has been set (to a positive value), + * that the multiplier has a valid setting, and that the size limit + * is valid. Since the latter is a calculated value, this can only + * fail due to a programming error. + * </p> + * <p>If a problem is detected, the setError() method is called. + * </p> + */ + public function verifySettings() { + if ($this->size < 0) { + $this->setError("The value attribute is required, and must be positive"); + } elseif ($this->multiplier < 1) { + $this->setError("Invalid Units supplied, must be K,Ki,M,Mi,G,Gi,T,or Ti"); + } elseif ($this->sizelimit < 0) { + $this->setError("Internal error: Code is not setting sizelimit correctly"); + } + } + + /** + * The heart of the matter. This is where the selector gets to decide + * on the inclusion of a file in a particular fileset. + * + * @param basedir A PhingFile object for the base directory + * @param filename The name of the file to check + * @param file A PhingFile object for this filename + * @return whether the file should be selected or not + */ + public function isSelected(PhingFile $basedir, $filename, PhingFile $file) { + + $this->validate(); + + // Directory size never selected for + if ($file->isDirectory()) { + return true; + } + if ($this->cmp === 0) { + return ($file->length() < $this->sizelimit); + } elseif ($this->cmp === 1) { + return ($file->length() > $this->sizelimit); + } else { + return ($file->length() === $this->sizelimit); + } + } + +} + |