[Rdfapi-php-svn] SF.net SVN: rdfapi-php: [570] trunk/bookmashup/ApiQueryService.php

[<tg...@us...>]

Revision: 570
          http://rdfapi-php.svn.sourceforge.net/rdfapi-php/?rev=570&view=rev
Author:   tgauss
Date:     2008-05-20 10:54:16 -0700 (Tue, 20 May 2008)

Log Message:
-----------
search for dereferencing subjects added

Modified Paths:
--------------
    trunk/bookmashup/ApiQueryService.php

Modified: trunk/bookmashup/ApiQueryService.php
===================================================================
--- trunk/bookmashup/ApiQueryService.php	2008-05-19 05:24:39 UTC (rev 569)
+++ trunk/bookmashup/ApiQueryService.php	2008-05-20 17:54:16 UTC (rev 570)
@@ -71,6 +71,12 @@
  		return $result;
  	}
  	
+ 	public function findSubject(MemModel $model, $subject){
+ 		$name = urldecode($subject);
+ 		$result = false;
+ 		$result = $this->addSubjectToModel($model,$name);
+ 	}
+ 	
  	private function addGoogleOffersToModel(MemModel $model){
  		$isbn = substr($this->uri,strrpos($this->uri,"/")+1,strlen($this->uri));
  		$itemresource = new Resource($this->uri);
@@ -106,6 +112,19 @@
  		$this->dblpLookup($name,$model);
 		return true;
 	}
+	
+	
+	private function addSubjectToModel(MemModel $model,$name){  
+		$itemresource = new Resource($this->uri);
+ 		// rdf:type
+ 		$model->add(new Statement($itemresource, new Resource(RDF_NAMESPACE_URI.RDF_TYPE), new Resource("http://www.w3.org/2004/02/skos/core#Concept")));
+		// rdfs:label
+		$model->add(new Statement($itemresource, new Resource("http://www.w3.org/2000/01/rdf-schema#label"), new Literal($name)));
+		//
+		$this->findBooksSubjectOf($model,$name);
+		$model->add(new Statement(new Resource($this->document),new Resource("http://www.w3.org/2000/01/rdf-schema#label"),new Literal("RDF document describing: ".$name)));
+		return true;
+	}
  	
  	private function findBooksFromAuthor($model,$name){
  		$xml = $this->queryAmazon($name);
@@ -121,6 +140,29 @@
  		}
  	}
  	
+ 	private function findBooksSubjectOf($model,$name){
+ 		$xml = $this->amazonPowerSearchSubject($name);
+ 		foreach($xml->Items->Item as $index =>$item){
+ 			if(isset($item->ItemAttributes->ISBN)){
+ 				//add book to model
+ 				$book = str_replace("/subject/","/books/",$this->uri);
+ 				$book = substr($book,0,strrpos($book,"/")+1).$item->ItemAttributes->ISBN;
+ 				$model->add(new Statement(new Resource($book) ,new Resource("http://www.w3.org/2000/01/rdf-schema#label"),new Literal($item->ItemAttributes->Title)));
+ 				$model->add(new Statement(new Resource($book) ,new Resource("http://purl.org/dc/elements/1.1/title"),new Literal($item->ItemAttributes->Title)));
+ 				// add at least the dereferenced model
+ 				$model->add(new Statement(new Resource($book) ,new Resource("http://www.w3.org/2004/02/skos/core#subject"),new Resource($this->uri)));
+ 				foreach($item->Subjects->Subject as $k => $subject){		
+ 					// generate URI for new subject
+ 					$pos = strrpos($this->uri,"/"); 
+					$subjectUri = new Resource(substr($this->uri,0,$pos+1).urlencode($subject));
+					// add to model if not the dereferenced subject (because it is already added
+					if($this->uri != $subjectUri)
+ 						$model->add(new Statement(new Resource($book) ,new Resource("http://www.w3.org/2004/02/skos/core#subject"),$subjectUri));
+ 				}
+ 			}
+ 		}
+ 	}
+ 	
 	
  	
 	private function findAmazonOffer($model,$offer,$isbn){
@@ -192,12 +234,20 @@
  	
  public function queryAmazon($query){
  			$searchIndex = "Books";
-			$request="http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAccessKeyId=".KEYID."&AssociateTag=".AssocTag."&Version=2006-09-11&Operation=ItemSearch&ResponseGroup=Medium";
+			$request="http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAccessKeyId=".KEYID."&AssociateTag=".AssocTag."&Version=2006-09-11&Operation=ItemSearch&ResponseGroup=Medium,Subjects";
 			$request.="&SearchIndex=$searchIndex&Keywords=".urlencode($query);
 			$response = file_get_contents($request);
 			return simplexml_load_string($response);			
  	}
  	
+public function amazonPowerSearchSubject($subject){
+ 			$searchIndex = "Books";
+			$request="http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAccessKeyId=".KEYID."&AssociateTag=".AssocTag."&Version=2006-09-11&Operation=ItemSearch&ResponseGroup=Medium,Subjects";
+			$request.="&SearchIndex=$searchIndex&Power=".urlencode('subject:"'.$subject.'"');
+			$response = file_get_contents($request);
+			return simplexml_load_string($response);			
+ 	}
+ 	
  	private function addBookToModel(SimpleXMLElement $item,MemModel $model){ 	 
  		
  		$itemresource = new Resource($this->uri);
@@ -244,6 +294,20 @@
  			    $model->add(new Statement($authorUri,new Resource("http://www.w3.org/2000/01/rdf-schema#label"),new Literal((string)$author)));
 			}		
 		}
+		// subject(s)
+		$newuri 	 = str_replace("/books/","/subject/",$this->uri);
+		$skosSubject = new Resource("http://www.w3.org/2004/02/skos/core#subject");
+ 		$pos = strrpos($newuri,"/"); 
+ 		if(isset($item->Subjects)){
+			foreach($item->Subjects as $k => $subjects){
+				foreach($subjects as $kk => $subject){		
+					$subjectUri = new Resource(substr($newuri,0,$pos+1).urlencode($subject));	
+        			$model->add(new Statement($itemresource, $skosSubject, $subjectUri));
+        			$model->add(new Statement($subjectUri, new Resource("http://www.w3.org/2000/01/rdf-schema#label"), new Literal($subject)));
+				}
+			}		
+		}
+		
  		if(isset($item->ItemAttributes->Creator)){
  			foreach($item->ItemAttributes->Creator as $key => $creator){
 	    		$creatorUri = new Resource(substr($newuri,0,$pos+1).urlencode($creator));


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