1d53b70272
Many bridges implemented getDescription() which is only applicable for bridges extending RSSExpander. Functions that are not part of the abstract class or interface should be in private scope for better readability.
91 lines
No EOL
2.6 KiB
PHP
91 lines
No EOL
2.6 KiB
PHP
<?php
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class ElsevierBridge extends BridgeAbstract{
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public function loadMetadatas() {
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$this->maintainer = 'Pierre Mazière';
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$this->name = 'Elsevier journals recent articles';
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$this->uri = 'http://www.journals.elsevier.com';
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$this->description = 'Returns the recent articles published in Elsevier journals';
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$this->update = '2016-08-06';
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$this->parameters[] =
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'[
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{
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"name" : "Journal name",
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"identifier" : "j",
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"required" : "true",
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"exampleValue" : "academic-pediatrics",
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"title" : "Insert html-part of your journal"
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}
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]';
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}
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// Extracts the list of names from an article as string
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private function ExtractArticleName ($article){
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$names = $article->find('small', 0);
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if($names)
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return trim($names->plaintext);
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return '';
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}
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// Extracts the timestamp from an article
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private function ExtractArticleTimestamp ($article){
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$time = $article->find('.article-info', 0);
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if($time){
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$timestring = trim($time->plaintext);
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/*
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The format depends on the age of an article:
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- Available online 29 July 2016
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- July 2016
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- May–June 2016
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*/
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if(preg_match('/\S*(\d+\s\S+\s\d{4})/ims', $timestring, $matches)){
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return strtotime($matches[0]);
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} elseif (preg_match('/([A-Za-z]+\s\d{4})/ims', $timestring, $matches)){
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return strtotime($matches[0]);
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} elseif (preg_match('/[A-Za-z]+\-([A-Za-z]+\s\d{4})/ims', $timestring, $matches)){
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return strtotime($matches[0]);
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} else {
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return 0;
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}
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}
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return 0;
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}
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// Extracts the content from an article
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private function ExtractArticleContent ($article){
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$content = $article->find('.article-content', 0);
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if($content){
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return trim($content->plaintext);
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}
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return '';
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}
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public function collectData(array $param){
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$uri = 'http://www.journals.elsevier.com/' . $param['j'] . '/recent-articles/';
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$html = file_get_html($uri) or $this->returnError('No results for Elsevier journal '.$param['j'], 404);
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foreach($html->find('.pod-listing') as $article){
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$item = new \Item();
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$item->uri = $article->find('.pod-listing-header>a',0)->getAttribute('href').'?np=y';
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$item->title = $article->find('.pod-listing-header>a',0)->plaintext;
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$item->name = $this->ExtractArticleName($article);
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$item->timestamp = $this->ExtractArticleTimestamp($article);
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$item->content = $this->ExtractArticleContent($article);
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$this->items[] = $item;
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}
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}
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public function getName(){
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return 'Elsevier journals recent articles';
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}
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public function getURI(){
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return 'http://www.journals.elsevier.com';
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}
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public function getCacheDuration(){
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return 43200; // 12h
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}
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}
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?>
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