Complex classes like store often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use store, and based on these observations, apply Extract Interface, too.
1 | <?php |
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38 | abstract class store { |
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39 | |||
40 | public $error; |
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41 | public $root; |
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42 | public $rootoptions; |
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43 | public $mod_lock; |
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44 | public $total; |
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45 | protected $code; |
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46 | protected $files; |
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47 | protected $_filestores; |
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48 | protected $config; |
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49 | |||
50 | |||
51 | |||
52 | public function __construct($path, $config) { |
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53 | echo "You have not configured the store properly. Please check your configuration files."; |
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54 | exit(); |
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55 | } |
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56 | |||
57 | /* abstract functions |
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58 | need implementation in your implementation of this store |
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59 | */ |
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60 | |||
61 | public abstract function call($template, $args, $objects); |
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62 | |||
63 | public abstract function count($objects); |
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64 | |||
65 | public abstract function info($objects); |
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66 | |||
67 | public abstract function get($path); |
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68 | /********************************************************************************** |
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69 | This function takes as argument a path to an object in the store and will retrieve |
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70 | all the necessary data and return this in the objectlist type needed for |
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71 | store->call(). If the requested path does not exist, it will retrieve the object |
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72 | with the longest matching path. |
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73 | |||
74 | $path should always start and end with a '/'. |
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75 | **********************************************************************************/ |
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76 | |||
77 | public abstract function touch($id, $timestamp = -1); |
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78 | /********************************************************************************** |
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79 | This function takes as argument a path to an object (or id of an object) |
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80 | in the store and will set the timestamp to $timestamp. |
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81 | |||
82 | $path should always start and end with a '/'. |
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83 | **********************************************************************************/ |
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84 | |||
85 | public abstract function ls($path); |
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86 | /********************************************************************************** |
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87 | This function takes as argument a path to an object in the store and will retrieve |
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88 | all the objects and their data which have this object as their parent. It will |
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89 | then return this in the objectlist type needed for store->call(). If the requested |
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90 | path does not exist, it will retrieve the object with the longest matching path. |
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91 | |||
92 | $path should always start and end with a '/'. |
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93 | **********************************************************************************/ |
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94 | |||
95 | public abstract function parents($path, $top="/"); |
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96 | /********************************************************************************** |
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97 | This function takes as argument a path to an object in the store. It will return |
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98 | all objects with a path which is a substring of the given path. The resulsts are |
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99 | ordered by path (length), shortest paths first. |
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100 | In effect all parents of an object in the tree are called, in order, starting at |
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101 | the root. |
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102 | |||
103 | $path should always start and end with a '/'. |
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104 | **********************************************************************************/ |
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105 | |||
106 | public abstract function find($path, $criteria, $limit=100, $offset=0); |
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107 | /********************************************************************************** |
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108 | This function takes as arguments a path to an object in the store and some search |
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109 | criteria. It will search for all matching objects under the given path. If the |
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110 | given path is not in this store but in a substore it will not automatically search |
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111 | that substore. |
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112 | |||
113 | $criteria is of the form |
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114 | |||
115 | $criteria ::= ({ $property_name => ({ $valuename => ({ $compare_function, $value }) }) }) |
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116 | |||
117 | e.g.: $criteria["status"]["value"][">"]="published"; |
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118 | |||
119 | $path should always start and end with a '/'. |
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120 | |||
121 | **********************************************************************************/ |
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122 | |||
123 | |||
124 | public abstract function save($path, $type, $data, $properties="", $vtype="", $priority=false); |
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125 | /*************************************************************** |
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126 | This function takes as argument a path, type, objectdata and |
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127 | possibly a properties list and vtype (virtual type). |
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128 | If there exists no object with the given path, a new object is |
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129 | saved with the given type, data, properties and vtype, and a |
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130 | new path is saved pointing to it. |
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131 | If there does exist an object with the given path, it's object |
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132 | data is overwritten with the given data and if vtype is set the |
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133 | current vtype is overwritten with the new one. |
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134 | |||
135 | $path must be an absolute path (containing no '..' and starting |
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136 | with '/') |
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137 | $type must be a valid type |
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138 | $data can be any string (usually a serialized object.) |
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139 | $properties is a multidimensional hash of the following form: |
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140 | $properties[{property_name}][][{value_name}]={value} |
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141 | {property_name} must be a valid property name |
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142 | {value_name} must be a valid value name for this property |
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143 | {value} can be a number, boolean or string. |
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144 | example: |
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145 | $properties["name"][0]["value"]="A name"; |
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146 | $properties["name"][1]["value"]="A second name!"; |
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147 | if $properties["name"]=1 then all properties for property name |
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148 | will be removed. |
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149 | |||
150 | $vtype must be a valid type. |
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151 | |||
152 | if $properties or $vtype are not set or empty ("",0 or false) |
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153 | they will be ignored. $vtype defaults to $type. |
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154 | Only those properties listed in $properties will be updated. |
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155 | Any other property set will remain as it was. |
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156 | ***************************************************************/ |
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157 | |||
158 | |||
159 | protected abstract function purge($path); |
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160 | /********************************************************************** |
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161 | This function will delete the object pointed to by $path and all |
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162 | other paths pointing to that object. It will then remove any property |
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163 | for this object from all property tables. |
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164 | The function returns the number of paths found and removed or 1 if |
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165 | there was no path found (meaning that the object doesn't exist and |
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166 | therefor purge succeeded while doing nothing.) |
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167 | |||
168 | $path should always start and end with a '/'. |
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169 | **********************************************************************/ |
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170 | |||
171 | public abstract function delete($path); |
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172 | /********************************************************************** |
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173 | This function deletes the path given. If this is the last path pointing |
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174 | to an object, the object will be purged instead. |
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175 | |||
176 | $path should always start and end with a '/'. |
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177 | **********************************************************************/ |
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178 | |||
179 | abstract function exists($path); |
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180 | /********************************************************************** |
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181 | This function checks the given path to see if it exists. If it does |
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182 | it returns the id of the object to which it points. Otherwise it returns |
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183 | 0. |
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184 | |||
185 | $path should always start and end with a '/'. |
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186 | **********************************************************************/ |
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187 | |||
188 | |||
189 | public abstract function link($source, $destination); |
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190 | /********************************************************************** |
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191 | Link adds an extra path to an already existing object. It has two |
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192 | arguments: $source and $destination. $source is an existing path of |
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193 | an object, $destination is the new path. $destination must not already |
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194 | exist. |
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195 | |||
196 | $destination should always start and end with a '/'. |
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197 | **********************************************************************/ |
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198 | |||
199 | public abstract function move($source, $destination); |
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200 | /********************************************************************** |
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201 | $destination should always start and end with a '/'. |
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202 | **********************************************************************/ |
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203 | |||
204 | |||
205 | public abstract function list_paths($path); |
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206 | /********************************************************************** |
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207 | This function returns an array of all paths pointing to the same object |
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208 | as $path does. |
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209 | **********************************************************************/ |
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210 | |||
211 | public abstract function AR_implements($type, $implements); |
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212 | /********************************************************************** |
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213 | This function returns 1 if the $type implements the type or |
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214 | interface in $implements. Otherwise it returns 0. |
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215 | **********************************************************************/ |
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216 | |||
217 | public abstract function load_properties($object, $values=""); |
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218 | |||
219 | public abstract function load_property($object, $property, $values=""); |
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220 | |||
221 | public abstract function add_property($object, $property, $values); |
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222 | |||
223 | public abstract function del_property($object, $property="", $values=""); |
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224 | |||
225 | protected abstract function get_nextid($path, $mask="{5:id}"); |
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226 | /********************************************************************** |
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227 | 'private' function of mysql store. This will return the next |
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228 | 'autoid' for $path. |
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229 | **********************************************************************/ |
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230 | |||
231 | |||
232 | |||
233 | /* |
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234 | Implemented functions |
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235 | */ |
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236 | |||
237 | 92 | public function get_config($field) { |
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238 | switch ($field) { |
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239 | 92 | case 'code': |
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240 | 92 | case 'files': |
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241 | 92 | case 'root': |
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242 | 92 | case 'rootoptions': |
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243 | 92 | $result = $this->$field; |
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244 | 92 | break; |
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245 | default: |
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246 | $result = null; |
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247 | debug("store::get_config: undefined field $field requested","store"); |
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248 | break; |
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249 | } |
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250 | 92 | return $result; |
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251 | } |
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252 | |||
253 | 60 | public function is_supported($feature) { |
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254 | /********************************************************************************** |
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255 | This function takes as argument a feature description and returns |
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256 | true if this feature is supported and false otherwise |
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257 | **********************************************************************************/ |
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258 | 60 | $result = false; |
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259 | switch($feature) { |
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260 | // features depending on config values |
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261 | 60 | case 'fulltext_boolean': |
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262 | 60 | case 'fulltext': |
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263 | 48 | if ($this->config[$feature]) { |
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264 | 24 | $result = true; |
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265 | 24 | } else { |
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266 | 24 | $result = false; |
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267 | } |
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268 | 48 | break; |
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269 | // features depending store implementation, if stores don't implements this, they have to override this function |
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270 | 60 | case 'grants': |
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271 | 45 | case 'regexp': |
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272 | 60 | $result = true; |
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273 | 60 | break; |
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274 | } |
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275 | 60 | return $result; |
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276 | } |
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277 | |||
278 | /********************************************************************************** |
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279 | This functions creates a new ariadne object |
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280 | **********************************************************************************/ |
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281 | 184 | public function newobject($path, $parent, $type, $data, $id=0, $lastchanged=0, $vtype="", $size=0, $priority=0) { |
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282 | 184 | global $ARnls; |
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283 | 184 | $class = $type; |
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284 | 184 | if ($subcpos = strpos($type, '.')) { |
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285 | 24 | $class = substr($type, 0, $subcpos); |
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286 | 24 | $vtype = $class; |
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287 | 18 | } |
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288 | 184 | if (!class_exists($class, false)) { |
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289 | include_once($this->code."objects/".$class.".phtml"); |
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290 | } |
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291 | 184 | $object=new $class; |
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292 | 184 | $object->type=$type; |
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293 | 184 | $object->parent=$parent; |
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294 | 184 | $object->id=(int)$id; |
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295 | 184 | $object->lastchanged=(int)$lastchanged; |
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296 | 184 | $object->vtype=$vtype; |
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297 | 184 | $object->size=(int)$size; |
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298 | 184 | $object->priority=(int)$priority; |
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299 | 184 | $object->ARnls = $ARnls; |
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300 | 184 | $object->init($this, $path, $data); |
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301 | 184 | return $object; |
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302 | } |
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303 | |||
304 | 104 | public function close() { |
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305 | // This is the destructor function, nothing much to see :) |
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306 | 104 | if (is_array($this->_filestores)) { |
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307 | foreach ($this->_filestores as $filestore) { |
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308 | $filestore->close(); |
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309 | } |
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310 | } |
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311 | 104 | } |
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312 | |||
313 | 104 | public function __destruct() { |
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314 | 104 | $this->close(); |
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315 | 104 | } |
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316 | |||
317 | 112 | public function make_path($curr_dir, $path) { |
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320 | |||
321 | 68 | public function save_properties($properties, $id) { |
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339 | |||
340 | |||
341 | 102 | public function get_filestore($name) { |
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354 | |||
355 | 28 | public function get_filestore_svn($name) { |
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356 | 28 | require_once($this->code."modules/mod_filestore_svn.phtml"); |
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357 | 28 | if (!$this->_filestores["svn_" . $name]) { |
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358 | 28 | $this->_filestores["svn_" . $name] = new filestore_svn($name, $this->files, $this); |
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359 | 21 | } |
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360 | 28 | return $this->_filestores["svn_" . $name]; |
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361 | } |
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362 | |||
363 | 94 | protected function compilerFactory(){ |
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364 | 94 | switch($this->config["dbms"]){ |
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365 | 94 | case 'axstore': |
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366 | return false; |
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367 | 94 | default: |
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368 | 94 | $compiler = $this->config["dbms"].'_compiler'; |
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369 | 94 | return new $compiler($this,$this->tbl_prefix); |
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370 | 94 | } |
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371 | } |
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372 | |||
373 | 51 | protected function serialize($value, $path) { |
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374 | 51 | if ($value->failedDecrypt && $value->originalData) { |
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375 | $value = $value->originalData; |
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376 | return $value; |
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377 | } |
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378 | |||
379 | // Notice: When upgrading to a new crypto format, prepend the object data with a key of the crypto. This way you can be backwards compatible but new objects will be saved in the new crypto. |
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380 | 51 | if ($this->config['crypto'] instanceof \Closure) { |
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381 | $crypto = $this->config['crypto'](); |
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382 | // use the last crypto configured; |
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383 | $cryptoConfig = end($crypto); |
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384 | if (is_array($cryptoConfig['paths'])) { |
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385 | foreach ($cryptoConfig['paths'] as $cryptoPath) { |
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386 | if (strpos($path, $cryptoPath) === 0) { |
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387 | $value->ARcrypted = true; |
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388 | switch ($cryptoConfig['method']) { |
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389 | case 'ar_crypt': |
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390 | $key = base64_decode($cryptoConfig['key']); |
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391 | $crypto = new ar_crypt($key,$cryptoConfig['crypto'],1); |
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392 | $cryptedValue = $crypto->crypt(serialize($value)); |
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393 | if($cryptedValue !== false ) { |
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394 | return $cryptoConfig['token'] . ":" . $cryptedValue; |
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395 | } |
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396 | break; |
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397 | default: |
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398 | break; |
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399 | } |
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400 | |||
401 | } |
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402 | } |
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403 | } |
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404 | } |
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405 | 51 | unset($value->ARcrypted); |
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406 | 51 | return serialize($value); |
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407 | } |
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408 | |||
409 | 184 | protected function unserialize($value, $path) { |
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441 | |||
442 | } |
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443 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.