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350 lines
11 KiB
350 lines
11 KiB
4 months ago
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<?php
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/**
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* log4php is a PHP port of the log4j java logging package.
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*
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* <p>This framework is based on log4j (see {@link http://jakarta.apache.org/log4j log4j} for details).</p>
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* <p>Design, strategies and part of the methods documentation are developed by log4j team
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* (Ceki G�lc� as log4j project founder and
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* {@link http://jakarta.apache.org/log4j/docs/contributors.html contributors}).</p>
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*
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* <p>PHP port, extensions and modifications by VxR. All rights reserved.<br>
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* For more information, please see {@link http://www.vxr.it/log4php/}.</p>
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*
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* <p>This software is published under the terms of the LGPL License
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* a copy of which has been included with this distribution in the LICENSE file.</p>
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*
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* @package log4php
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* @subpackage helpers
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*/
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/**
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* @ignore
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*/
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if (!defined('LOG4PHP_DIR')) define('LOG4PHP_DIR', dirname(__FILE__) . '/..');
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require_once(LOG4PHP_DIR . '/LoggerLevel.php');
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define('LOG4PHP_OPTION_CONVERTER_DELIM_START', '${');
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define('LOG4PHP_OPTION_CONVERTER_DELIM_STOP', '}');
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define('LOG4PHP_OPTION_CONVERTER_DELIM_START_LEN', 2);
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define('LOG4PHP_OPTION_CONVERTER_DELIM_STOP_LEN', 1);
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/**
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* A convenience class to convert property values to specific types.
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*
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* @author VxR <vxr@vxr.it>
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* @version $Revision: 1.1 $
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* @package log4php
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* @subpackage helpers
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* @static
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* @since 0.5
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*/
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class LoggerOptionConverter {
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/**
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* OptionConverter is a static class.
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*/
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function OptionConverter()
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{
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return;
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}
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/**
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* @param array $l
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* @param array $r
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* @return array
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*
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* @static
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*/
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function concatanateArrays($l, $r)
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{
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return array_merge($l, $r);
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}
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/**
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* Read a predefined var.
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*
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* It returns a value referenced by <var>$key</var> using this search criteria:
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* - if <var>$key</var> is a constant then return it. Else
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* - if <var>$key</var> is set in <var>$_ENV</var> then return it. Else
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* - return <var>$def</var>.
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*
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* @param string $key The key to search for.
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* @param string $def The default value to return.
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* @return string the string value of the system property, or the default
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* value if there is no property with that key.
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*
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* @static
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*/
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function getSystemProperty($key, $def)
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{
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LoggerLog::debug("LoggerOptionConverter::getSystemProperty():key=[{$key}]:def=[{$def}].");
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if (defined($key)) {
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return (string)constant($key);
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} elseif (isset($_ENV[$key])) {
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return (string)$_ENV[$key];
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} else {
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return $def;
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}
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}
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/**
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* If <var>$value</var> is <i>true</i>, then <i>true</i> is
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* returned. If <var>$value</var> is <i>false</i>, then
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* <i>true</i> is returned. Otherwise, <var>$default</var> is
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* returned.
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*
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* <p>Case of value is unimportant.</p>
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*
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* @param string $value
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* @param boolean $default
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* @return boolean
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*
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* @static
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*/
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function toBoolean($value, $default)
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{
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if($value === null)
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return $default;
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if ($value == 1)
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return true;
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$trimmedVal = strtolower(trim($value));
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if ("true" == $trimmedVal or "yes" == $trimmedVal)
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return true;
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if ("false" == $trimmedVal)
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return false;
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return $default;
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}
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/**
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* @param string $value
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* @param integer $default
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* @return integer
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* @static
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*/
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function toInt($value, $default)
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{
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$value = trim($value);
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if (is_numeric($value)) {
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return (int)$value;
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} else {
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return $default;
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}
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}
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/**
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* Converts a standard or custom priority level to a Level
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* object.
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*
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* <p> If <var>$value</var> is of form "<b>level#full_file_classname</b>",
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* where <i>full_file_classname</i> means the class filename with path
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* but without php extension, then the specified class' <i>toLevel()</i> method
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* is called to process the specified level string; if no '#'
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* character is present, then the default {@link LoggerLevel}
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* class is used to process the level value.</p>
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*
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* <p>As a special case, if the <var>$value</var> parameter is
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* equal to the string "NULL", then the value <i>null</i> will
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* be returned.</p>
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*
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* <p>If any error occurs while converting the value to a level,
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* the <var>$defaultValue</var> parameter, which may be
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* <i>null</i>, is returned.</p>
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*
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* <p>Case of <var>$value</var> is insignificant for the level level, but is
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* significant for the class name part, if present.</p>
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*
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* @param string $value
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* @param LoggerLevel $defaultValue
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* @return LoggerLevel a {@link LoggerLevel} or null
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* @static
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*/
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function toLevel($value, $defaultValue)
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{
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if($value === null)
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return $defaultValue;
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$hashIndex = strpos($value, '#');
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if ($hashIndex === false) {
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if("NULL" == strtoupper($value)) {
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return null;
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} else {
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// no class name specified : use standard Level class
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return LoggerLevel::toLevel($value, $defaultValue);
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}
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}
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$result = $defaultValue;
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$clazz = substr($value, ($hashIndex + 1));
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$levelName = substr($value, 0, $hashIndex);
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// This is degenerate case but you never know.
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if("NULL" == strtoupper($levelName)) {
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return null;
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}
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LoggerLog::debug("LoggerOptionConverter::toLevel():class=[{$clazz}]:pri=[{$levelName}]");
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if (!class_exists($clazz))
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@include_once("{$clazz}.php");
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$clazz = basename($clazz);
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if (class_exists($clazz)) {
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$result = @call_user_func(array($clazz, 'toLevel'), $value, $defaultValue);
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if (!is_a($result, 'loggerlevel')) {
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LoggerLog::debug("LoggerOptionConverter::toLevel():class=[{$clazz}] cannot call toLevel(). Returning default.");
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$result = $defaultValue;
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}
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} else {
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LoggerLog::warn("LoggerOptionConverter::toLevel() class '{$clazz}' doesnt exists.");
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}
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return $result;
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}
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/**
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* @param string $value
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* @param float $default
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* @return float
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*
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* @static
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*/
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function toFileSize($value, $default)
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{
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if ($value === null)
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return $default;
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$s = strtoupper(trim($value));
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$multiplier = (float)1;
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if(($index = strpos($s, 'KB')) !== false) {
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$multiplier = 1024;
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$s = substr($s, 0, $index);
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} elseif(($index = strpos($s, 'MB')) !== false) {
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$multiplier = 1024 * 1024;
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$s = substr($s, 0, $index);
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} elseif(($index = strpos($s, 'GB')) !== false) {
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$multiplier = 1024 * 1024 * 1024;
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$s = substr($s, 0, $index);
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}
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if(is_numeric($s)) {
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return (float)$s * $multiplier;
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} else {
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LoggerLog::warn("LoggerOptionConverter::toFileSize() [{$s}] is not in proper form.");
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}
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return $default;
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}
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/**
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* Find the value corresponding to <var>$key</var> in
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* <var>$props</var>. Then perform variable substitution on the
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* found value.
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*
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* @param string $key
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* @param array $props
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* @return string
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*
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* @static
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*/
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function findAndSubst($key, $props)
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{
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$value = @$props[$key];
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if(empty($value)) {
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return null;
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}
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return LoggerOptionConverter::substVars($value, $props);
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}
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/**
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* Perform variable substitution in string <var>$val</var> from the
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* values of keys found with the {@link getSystemProperty()} method.
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*
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* <p>The variable substitution delimeters are <b>${</b> and <b>}</b>.
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*
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* <p>For example, if the "MY_CONSTANT" contains "value", then
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* the call
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* <code>
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* $s = LoggerOptionConverter::substituteVars("Value of key is ${MY_CONSTANT}.");
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* </code>
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* will set the variable <i>$s</i> to "Value of key is value.".</p>
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*
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* <p>If no value could be found for the specified key, then the
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* <var>$props</var> parameter is searched, if the value could not
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* be found there, then substitution defaults to the empty string.</p>
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*
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* <p>For example, if {@link getSystemProperty()} cannot find any value for the key
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* "inexistentKey", then the call
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* <code>
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* $s = LoggerOptionConverter::substVars("Value of inexistentKey is [${inexistentKey}]");
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* </code>
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* will set <var>$s</var> to "Value of inexistentKey is []".</p>
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*
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* <p>A warn is thrown if <var>$val</var> contains a start delimeter "${"
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* which is not balanced by a stop delimeter "}" and an empty string is returned.</p>
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*
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* @log4j-author Avy Sharell
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*
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* @param string $val The string on which variable substitution is performed.
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* @param array $props
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* @return string
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*
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* @static
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*/
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function substVars($val, $props = null)
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{
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LoggerLog::debug("LoggerOptionConverter::substVars():val=[{$val}]");
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$sbuf = '';
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$i = 0;
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while(true) {
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$j = strpos($val, LOG4PHP_OPTION_CONVERTER_DELIM_START, $i);
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if ($j === false) {
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LoggerLog::debug("LoggerOptionConverter::substVars() no more variables");
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// no more variables
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if ($i == 0) { // this is a simple string
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LoggerLog::debug("LoggerOptionConverter::substVars() simple string");
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return $val;
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} else { // add the tail string which contails no variables and return the result.
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$sbuf .= substr($val, $i);
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LoggerLog::debug("LoggerOptionConverter::substVars():sbuf=[{$sbuf}]. Returning sbuf");
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return $sbuf;
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}
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} else {
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$sbuf .= substr($val, $i, $j-$i);
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LoggerLog::debug("LoggerOptionConverter::substVars():sbuf=[{$sbuf}]:i={$i}:j={$j}.");
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$k = strpos($val, LOG4PHP_OPTION_CONVERTER_DELIM_STOP, $j);
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if ($k === false) {
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LoggerLog::warn(
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"LoggerOptionConverter::substVars() " .
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"'{$val}' has no closing brace. Opening brace at position {$j}."
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);
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return '';
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} else {
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$j += LOG4PHP_OPTION_CONVERTER_DELIM_START_LEN;
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$key = substr($val, $j, $k - $j);
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// first try in System properties
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$replacement = LoggerOptionConverter::getSystemProperty($key, null);
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// then try props parameter
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if($replacement == null and $props !== null) {
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$replacement = @$props[$key];
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}
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if(!empty($replacement)) {
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// Do variable substitution on the replacement string
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// such that we can solve "Hello ${x2}" as "Hello p1"
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// the where the properties are
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// x1=p1
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// x2=${x1}
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$recursiveReplacement = LoggerOptionConverter::substVars($replacement, $props);
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$sbuf .= $recursiveReplacement;
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}
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$i = $k + LOG4PHP_OPTION_CONVERTER_DELIM_STOP_LEN;
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}
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}
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}
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}
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}
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?>
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