Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like BloggerApi 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 BloggerApi, and based on these observations, apply Extract Interface, too.
1 | <?php |
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21 | class BloggerApi extends XoopsXmlRpcApi |
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22 | { |
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23 | /** |
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24 | * @param $params |
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25 | * @param $response |
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26 | * @param $module |
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27 | */ |
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28 | 9 | View Code Duplication | public function __construct(&$params, &$response, &$module) |
29 | { |
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30 | 9 | parent::__construct($params, $response, $module); |
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31 | 9 | $this->_setXoopsTagMap('storyid', 'postid'); |
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32 | 9 | $this->_setXoopsTagMap('published', 'dateCreated'); |
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33 | 9 | $this->_setXoopsTagMap('uid', 'userid'); |
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34 | 9 | } |
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35 | |||
36 | 1 | public function newPost() |
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37 | { |
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38 | 1 | if (!$this->_checkUser($this->params[2], $this->params[3])) { |
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39 | $this->response->add(new XoopsXmlRpcFault(104)); |
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40 | } else { |
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41 | 1 | if (!$fields =& $this->_getPostFields(null, $this->params[1])) { |
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42 | $this->response->add(new XoopsXmlRpcFault(106)); |
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43 | View Code Duplication | } else { |
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44 | 1 | $missing = array(); |
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45 | 1 | $post = array(); |
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46 | 1 | foreach ($fields as $tag => $detail) { |
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47 | 1 | $maptag = $this->_getXoopsTagMap($tag); |
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48 | 1 | $data = $this->_getTagCdata($this->params[4], $maptag, true); |
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49 | 1 | if (trim($data) == ''){ |
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50 | if ($detail['required']) { |
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51 | $missing[] = $maptag; |
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52 | } |
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53 | } else { |
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54 | 1 | $post[$tag] = $data; |
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55 | } |
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56 | } |
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57 | 1 | if (count($missing) > 0) { |
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58 | $msg = ''; |
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59 | foreach ($missing as $m) { |
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60 | $msg .= '<' . $m . '> '; |
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61 | } |
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62 | $this->response->add(new XoopsXmlRpcFault(109, $msg)); |
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63 | } else { |
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64 | 1 | $newparams = array(); |
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65 | // Xoops Api ignores App key |
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66 | 1 | $newparams[0] = $this->params[1]; |
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67 | 1 | $newparams[1] = $this->params[2]; |
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68 | 1 | $newparams[2] = $this->params[3]; |
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69 | 1 | foreach ($post as $key => $value) { |
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70 | 1 | $newparams[3][$key] = $value; |
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71 | 1 | unset($value); |
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72 | } |
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73 | 1 | $newparams[3]['xoops_text'] = $this->params[4]; |
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74 | 1 | $newparams[4] = $this->params[5]; |
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75 | $xoopsapi = $this->_getXoopsApi($newparams); |
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76 | $xoopsapi->_setUser($this->user, $this->isadmin); |
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77 | $xoopsapi->newPost(); |
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78 | } |
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79 | } |
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80 | } |
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81 | } |
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82 | |||
83 | 1 | public function editPost() |
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84 | { |
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85 | 1 | if (!$this->_checkUser($this->params[2], $this->params[3])) { |
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86 | $this->response->add(new XoopsXmlRpcFault(104)); |
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87 | View Code Duplication | } else { |
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88 | 1 | if (!$fields = $this->_getPostFields($this->params[1])) { |
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89 | } else { |
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90 | 1 | $missing = array(); |
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91 | 1 | $post = array(); |
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92 | 1 | foreach ($fields as $tag => $detail) { |
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93 | 1 | $data = $this->_getTagCdata($this->params[4], $tag, true); |
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94 | 1 | if (trim($data) == ''){ |
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95 | if ($detail['required']) { |
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96 | $missing[] = $tag; |
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97 | } |
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98 | } else { |
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99 | 1 | $post[$tag] = $data; |
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100 | } |
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101 | } |
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102 | 1 | if (count($missing) > 0) { |
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103 | $msg = ''; |
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104 | foreach ($missing as $m) { |
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105 | $msg .= '<' . $m . '> '; |
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106 | } |
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107 | $this->response->add(new XoopsXmlRpcFault(109, $msg)); |
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108 | } else { |
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109 | 1 | $newparams = array(); |
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110 | // XOOPS API ignores App key (index 0 of params) |
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111 | 1 | $newparams[0] = $this->params[1]; |
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112 | 1 | $newparams[1] = $this->params[2]; |
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113 | 1 | $newparams[2] = $this->params[3]; |
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114 | 1 | foreach ($post as $key => $value) { |
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115 | 1 | $newparams[3][$key] = $value; |
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116 | 1 | unset($value); |
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117 | } |
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118 | 1 | $newparams[3]['xoops_text'] = $this->params[4]; |
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119 | 1 | $newparams[4] = $this->params[5]; |
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120 | $xoopsapi = $this->_getXoopsApi($newparams); |
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121 | $xoopsapi->_setUser($this->user, $this->isadmin); |
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122 | $xoopsapi->editPost(); |
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123 | } |
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124 | } |
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125 | } |
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126 | } |
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127 | |||
128 | public function deletePost() |
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140 | |||
141 | 1 | public function getPost() |
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142 | { |
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143 | 1 | if (!$this->_checkUser($this->params[2], $this->params[3])) { |
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144 | $this->response->add(new XoopsXmlRpcFault(104)); |
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145 | } else { |
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146 | // XOOPS API ignores App key (index 0 of params) |
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147 | 1 | array_shift($this->params); |
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148 | 1 | $xoopsapi = $this->_getXoopsApi($this->params); |
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149 | 1 | $xoopsapi->_setUser($this->user, $this->isadmin); |
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150 | 1 | $ret = $xoopsapi->getPost(false); |
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151 | if (is_array($ret)) { |
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152 | $struct = new XoopsXmlRpcStruct(); |
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153 | $content = ''; |
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154 | View Code Duplication | foreach ($ret as $key => $value) { |
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155 | $maptag = $this->_getXoopsTagMap($key); |
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156 | switch($maptag) { |
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157 | case 'userid': |
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158 | $struct->add('userid', new XoopsXmlRpcString($value)); |
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159 | break; |
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160 | case 'dateCreated': |
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161 | $struct->add('dateCreated', new XoopsXmlRpcDatetime($value)); |
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162 | break; |
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163 | case 'postid': |
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164 | $struct->add('postid', new XoopsXmlRpcString($value)); |
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165 | break; |
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166 | default : |
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167 | $content .= '<'.$key.'>'.trim($value).'</'.$key.'>'; |
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168 | break; |
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169 | } |
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170 | } |
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171 | $struct->add('content', new XoopsXmlRpcString($content)); |
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172 | $this->response->add($struct); |
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173 | } else { |
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174 | $this->response->add(new XoopsXmlRpcFault(106)); |
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175 | } |
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176 | } |
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177 | } |
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178 | |||
179 | 1 | public function getRecentPosts() |
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180 | { |
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181 | 1 | if (!$this->_checkUser($this->params[2], $this->params[3])) { |
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182 | $this->response->add(new XoopsXmlRpcFault(104)); |
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183 | } else { |
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184 | // XOOPS API ignores App key (index 0 of params) |
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185 | 1 | array_shift($this->params); |
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186 | 1 | $xoopsapi = $this->_getXoopsApi($this->params); |
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187 | 1 | $xoopsapi->_setUser($this->user, $this->isadmin); |
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188 | 1 | $ret = $xoopsapi->getRecentPosts(false); |
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189 | if (is_array($ret)) { |
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190 | $arr = new XoopsXmlRpcArray(); |
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191 | $count = count($ret); |
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192 | if ($count == 0) { |
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193 | $this->response->add(new XoopsXmlRpcFault(106, 'Found 0 Entries')); |
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194 | } else { |
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195 | for ($i = 0; $i < $count; ++$i) { |
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196 | $struct = new XoopsXmlRpcStruct(); |
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197 | $content = ''; |
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198 | View Code Duplication | foreach($ret[$i] as $key => $value) { |
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199 | $maptag = $this->_getXoopsTagMap($key); |
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200 | switch($maptag) { |
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201 | case 'userid': |
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202 | $struct->add('userid', new XoopsXmlRpcString($value)); |
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203 | break; |
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204 | case 'dateCreated': |
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205 | $struct->add('dateCreated', new XoopsXmlRpcDatetime($value)); |
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206 | break; |
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207 | case 'postid': |
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208 | $struct->add('postid', new XoopsXmlRpcString($value)); |
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209 | break; |
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210 | default : |
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211 | $content .= '<'.$key.'>'.trim($value).'</'.$key.'>'; |
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212 | break; |
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213 | } |
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214 | } |
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215 | $struct->add('content', new XoopsXmlRpcString($content)); |
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216 | $arr->add($struct); |
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217 | unset($struct); |
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218 | } |
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219 | $this->response->add($arr); |
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220 | } |
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221 | } else { |
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222 | $this->response->add(new XoopsXmlRpcFault(106)); |
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223 | } |
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224 | } |
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225 | } |
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226 | |||
227 | 1 | public function getUsersBlogs() |
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242 | |||
243 | 1 | public function getUserInfo() |
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258 | |||
259 | 1 | public function getTemplate() |
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277 | |||
278 | 1 | public function setTemplate() |
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286 | } |
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287 |