1 | <?php |
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2 | /** |
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3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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4 | * contributor license agreements. See the NOTICE file distributed with |
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5 | * this work for additional information regarding copyright ownership. |
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6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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7 | * (the "License"); you may not use this file except in compliance with |
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8 | * the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | * |
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18 | * |
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19 | * @package log4php |
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20 | * @subpackage or |
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21 | */ |
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22 | |
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23 | /** |
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24 | * @ignore |
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25 | */ |
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26 | if (!defined('LOG4PHP_DIR')) define('LOG4PHP_DIR', dirname(__FILE__) . '/..'); |
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27 | |
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28 | /** |
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29 | */ |
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30 | require_once(LOG4PHP_DIR . '/or/LoggerDefaultRenderer.php'); |
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31 | require_once(LOG4PHP_DIR . '/or/LoggerObjectRenderer.php'); |
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32 | require_once(LOG4PHP_DIR . '/LoggerLog.php'); |
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33 | |
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34 | /** |
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35 | * Map class objects to an {@link LoggerObjectRenderer}. |
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36 | * |
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37 | * @author Marco Vassura |
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38 | * @version $Revision: 635069 $ |
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39 | * @package log4php |
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40 | * @subpackage or |
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41 | * @since 0.3 |
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42 | */ |
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43 | class LoggerRendererMap { |
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44 | |
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45 | /** |
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46 | * @var array |
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47 | */ |
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48 | var $map; |
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49 | |
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50 | /** |
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51 | * @var LoggerDefaultRenderer |
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52 | */ |
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53 | var $defaultRenderer; |
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54 | |
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55 | /** |
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56 | * Constructor |
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57 | */ |
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58 | public function __construct() |
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59 | { |
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60 | $this->map = array(); |
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61 | $this->defaultRenderer = new LoggerDefaultRenderer(); |
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62 | } |
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63 | |
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64 | /** |
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65 | * Add a renderer to a hierarchy passed as parameter. |
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66 | * Note that hierarchy must implement getRendererMap() and setRenderer() methods. |
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67 | * |
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68 | * @param LoggerHierarchy $repository a logger repository. |
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69 | * @param string $renderedClassName |
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70 | * @param string $renderingClassName |
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71 | * @static |
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72 | */ |
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73 | public static function addRenderer($repository, $renderedClassName, $renderingClassName) |
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74 | { |
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75 | LoggerLog::debug("LoggerRendererMap::addRenderer() Rendering class: [{$renderingClassName}], Rendered class: [{$renderedClassName}]."); |
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76 | $renderer = LoggerObjectRenderer::factory($renderingClassName); |
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77 | if($renderer == null) { |
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78 | LoggerLog::warn("LoggerRendererMap::addRenderer() Could not instantiate renderer [{$renderingClassName}]."); |
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79 | return; |
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80 | } else { |
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81 | $repository->setRenderer($renderedClassName, $renderer); |
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82 | } |
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83 | } |
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84 | |
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85 | |
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86 | /** |
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87 | * Find the appropriate renderer for the class type of the |
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88 | * <var>o</var> parameter. |
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89 | * |
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90 | * This is accomplished by calling the {@link getByObject()} |
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91 | * method if <var>o</var> is object or using {@link LoggerDefaultRenderer}. |
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92 | * Once a renderer is found, it is applied on the object <var>o</var> and |
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93 | * the result is returned as a string. |
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94 | * |
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95 | * @param mixed $o |
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96 | * @return string |
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97 | */ |
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98 | public function findAndRender($o) |
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99 | { |
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100 | if($o == null) { |
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101 | return null; |
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102 | } else { |
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103 | if (is_object($o)) { |
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104 | $renderer = $this->getByObject($o); |
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105 | if ($renderer !== null) { |
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106 | return $renderer->doRender($o); |
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107 | } else { |
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108 | return null; |
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109 | } |
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110 | } else { |
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111 | $renderer = $this->defaultRenderer; |
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112 | return $renderer->doRender($o); |
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113 | } |
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114 | } |
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115 | } |
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116 | |
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117 | /** |
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118 | * Syntactic sugar method that calls {@link PHP_MANUAL#get_class} with the |
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119 | * class of the object parameter. |
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120 | * |
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121 | * @param mixed $o |
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122 | * @return string |
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123 | */ |
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124 | public function getByObject($o) |
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125 | { |
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126 | return ($o == null) ? null : $this->getByClassName(get_class($o)); |
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127 | } |
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128 | |
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129 | |
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130 | /** |
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131 | * Search the parents of <var>clazz</var> for a renderer. |
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132 | * |
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133 | * The renderer closest in the hierarchy will be returned. If no |
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134 | * renderers could be found, then the default renderer is returned. |
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135 | * |
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136 | * @param string $class |
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137 | * @return LoggerObjectRenderer |
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138 | */ |
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139 | public function getByClassName($class) |
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140 | { |
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141 | $r = null; |
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142 | for($c = strtolower($class); !empty($c); $c = get_parent_class($c)) { |
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143 | if (isset($this->map[$c])) { |
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144 | return $this->map[$c]; |
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145 | } |
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146 | } |
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147 | return $this->defaultRenderer; |
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148 | } |
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149 | |
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150 | /** |
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151 | * @return LoggerDefaultRenderer |
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152 | */ |
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153 | public function getDefaultRenderer() |
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154 | { |
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155 | return $this->defaultRenderer; |
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156 | } |
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157 | |
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158 | |
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159 | public function clear() |
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160 | { |
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161 | $this->map = array(); |
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162 | } |
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163 | |
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164 | /** |
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165 | * Register a {@link LoggerObjectRenderer} for <var>clazz</var>. |
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166 | * @param string $class |
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167 | * @param LoggerObjectRenderer $or |
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168 | */ |
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169 | public function put($class, $or) |
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170 | { |
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171 | $this->map[strtolower($class)] = $or; |
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172 | } |
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173 | |
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174 | /** |
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175 | * @param string $class |
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176 | * @return boolean |
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177 | */ |
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178 | public function rendererExists($class) |
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179 | { |
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180 | $class = basename($class); |
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181 | if (!class_exists($class)) { |
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182 | include_once(LOG4PHP_DIR ."/or/{$class}.php"); |
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183 | } |
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184 | return class_exists($class); |
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185 | } |
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186 | } |
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