dl-learner-svn Mailing List for DL-Learner (Page 149)

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Revision: 577
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=577&view=rev
Author:   jenslehmann
Date:     2008-02-15 08:18:52 -0800 (Fri, 15 Feb 2008)

Log Message:
-----------
- added php-examples directory, which should contain simple examples of web service interface usage
- created small Utilities class (partially from old LearnerClient file)
- added reasoning example

Modified Paths:
--------------
    trunk/src/dl-learner/org/dllearner/server/DLLearnerWS.java

Added Paths:
-----------
    trunk/src/php-examples/
    trunk/src/php-examples/Reasoning.php
    trunk/src/php-examples/Utilities.php

Modified: trunk/src/dl-learner/org/dllearner/server/DLLearnerWS.java
===================================================================

--- trunk/src/dl-learner/org/dllearner/server/DLLearnerWS.java	2008-02-15 12:44:08 UTC (rev 576)
+++ trunk/src/dl-learner/org/dllearner/server/DLLearnerWS.java	2008-02-15 16:18:52 UTC (rev 577)
@@ -35,6 +35,10 @@
 import javax.jws.soap.SOAPBinding;
 
 import org.dllearner.Info;
+import org.dllearner.algorithms.BruteForceLearner;
+import org.dllearner.algorithms.RandomGuesser;
+import org.dllearner.algorithms.gp.GP;
+import org.dllearner.algorithms.refexamples.ExampleBasedROLComponent;
 import org.dllearner.algorithms.refinement.ROLearner;
 import org.dllearner.core.Component;
 import org.dllearner.core.ComponentManager;
@@ -57,6 +61,7 @@
 import org.dllearner.parser.KBParser;
 import org.dllearner.parser.ParseException;
 import org.dllearner.reasoning.DIGReasoner;
+import org.dllearner.reasoning.OWLAPIReasoner;
 import org.dllearner.utilities.Datastructures;
 import org.dllearner.utilities.Helper;
 
@@ -87,10 +92,15 @@
 		knowledgeSourceMapping.put("owlfile", OWLFile.class);
 		knowledgeSourceMapping.put("sparql", SparqlKnowledgeSource.class);
 		reasonerMapping.put("dig", DIGReasoner.class);
+		reasonerMapping.put("owlapi", OWLAPIReasoner.class);
 		learningProblemMapping.put("posNegDefinition", PosNegDefinitionLP.class);
 		learningProblemMapping.put("posNegInclusion", PosNegInclusionLP.class);
 		learningProblemMapping.put("posOnlyDefinition", PosOnlyDefinitionLP.class);
-		learningAlgorithmMapping.put("refinement", ROLearner.class);
+		learningAlgorithmMapping.put("random", RandomGuesser.class);
+		learningAlgorithmMapping.put("bruteForce", BruteForceLearner.class);		
+		learningAlgorithmMapping.put("genetic", ROLearner.class);
+		learningAlgorithmMapping.put("refinement", GP.class);
+		learningAlgorithmMapping.put("refexamples", ExampleBasedROLComponent.class);
 		components = Helper.union(knowledgeSourceMapping.keySet(),reasonerMapping.keySet());
 		components = Helper.union(components, learningProblemMapping.keySet());
 		components = Helper.union(components, learningAlgorithmMapping.keySet());

Added: trunk/src/php-examples/Reasoning.php
===================================================================
--- trunk/src/php-examples/Reasoning.php	                        (rev 0)
+++ trunk/src/php-examples/Reasoning.php	2008-02-15 16:18:52 UTC (rev 577)
@@ -0,0 +1,59 @@
+<?php
+/**
+ * Copyright (C) 2007-2008, Jens Lehmann
+ *
+ * This file is part of DL-Learner.
+ * 
+ * DL-Learner is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DL-Learner is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+ 
+ /**
+  * Small example showing how to use DL-Learner for reasoning. 
+  * 
+  * @author Jens Lehmann
+  */
+  
+include('Utilities.php');
+
+// load WSDL files (has to be done due to a Java web service bug)
+ini_set("soap.wsdl_cache_enabled","0");
+$wsdluri="http://localhost:8181/services?wsdl";
+Utilities::loadWSDLfiles($wsdluri);
+
+// specifiy ontology
+$ontology = 'file:'.realpath("../../examples/family/father.owl");
+
+// create DL-Learner client
+$client = new SoapClient("main.wsdl");
+
+// load owl file in DIG reasoner (you need a running DIG reasoner)
+$id = $client->generateID();
+$ksID = $client->addKnowledgeSource($id, "owlfile", $ontology);
+$client->init($id, $ksID);
+$rID = $client->setReasoner($id, "dig");
+$client->init($id, $rID);
+
+// create a concept in internal DL-Learner syntax
+// ( = all female persons having at least one child)
+$concept = '"http://example.com/father#female" AND EXISTS "http://example.com/father#hasChild".TOP';
+$instances = $client->retrieval($id, $concept);
+
+// print instances    
+echo 'instances of ' . $concept . ': <br />';                
+echo '<pre>';                  
+print_r($instances->item);
+echo '</pre>';
+
+?>
\ No newline at end of file

Added: trunk/src/php-examples/Utilities.php
===================================================================
--- trunk/src/php-examples/Utilities.php	                        (rev 0)
+++ trunk/src/php-examples/Utilities.php	2008-02-15 16:18:52 UTC (rev 577)
@@ -0,0 +1,167 @@
+<?php
+/**
+ * Copyright (C) 2007-2008, Jens Lehmann
+ *
+ * This file is part of DL-Learner.
+ * 
+ * DL-Learner is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DL-Learner is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// Pear HTTP_Request class required
+include ('HTTP/Request.php');
+
+/**
+ * Collection of static utility functions. 
+ * 
+ * @author Jens Lehmann
+ * @author Sebastian Hellmann
+ */
+
+class Utilities {
+
+	/**
+	 * Loads WSDL and imported XSD files from web service and stores them
+	 * locally. 
+	 */
+	public static function loadWSDLfiles($wsdluri) {
+		$main = self :: getRequest($wsdluri);
+		$other = self :: getXSDImports($main);
+		$newMain = self :: changeXSDImports($main);
+		self :: writeToFile("main.wsdl", $newMain);
+		$x = 0;
+		foreach ($other as $o) {
+			self :: writeToFile("def" . ($x++) . ".xsd", self :: getRequest($o));
+		}
+	}
+
+	/**
+	 * Change XSD imports in WSDL file to point to local imports.
+	 */
+	public static function changeXSDImports($wsdlFileContent) {
+		$before = "<xsd:import schemaLocation=\"";
+		$after = "\" namespace=\"";
+		$newWSDL = "";
+		$desca = "def";
+		$descb = ".xsd";
+		$x = 0;
+		while ($posstart = strpos($wsdlFileContent, $before)) {
+			$posstart += strlen($before);
+			$newWSDL .= substr($wsdlFileContent, 0, $posstart);
+			$wsdlFileContent = substr($wsdlFileContent, $posstart);
+			$newWSDL .= $desca . ($x++) . $descb;
+			$posend = strpos($wsdlFileContent, $after);
+			$wsdlFileContent = substr($wsdlFileContent, $posend);
+		}
+		return $newWSDL . $wsdlFileContent;
+	}
+
+	/**
+	 * Extracts XSD imports from WSDL file.
+	 */
+	public static function getXSDImports($wsdlFileContent) {
+		$before = "<xsd:import schemaLocation=\"";
+		$after = "\" namespace=\"";
+		$ret = array ();
+		while ($posstart = strpos($wsdlFileContent, $before)) {
+			$posstart += strlen($before);
+			$wsdlFileContent = substr($wsdlFileContent, $posstart);
+			$posend = strpos($wsdlFileContent, $after);
+			$tmp = substr($wsdlFileContent, 0, $posend);
+			$ret[] = $tmp;
+			$wsdlFileContent = substr($wsdlFileContent, $posend +strlen($after));
+		}
+		return $ret;
+	}
+
+	/**
+	 * Peforms a GET request and returns body of result.
+	 */
+	public static function getRequest($uri) {
+		$req = & new HTTP_Request($uri);
+		$req->setMethod(HTTP_REQUEST_METHOD_GET);
+		$req->sendRequest();
+		$ret = $req->getResponseBody();
+		return $ret;
+	}
+
+	/**
+	 * Writes $content to file $filename.
+	 */
+	public static function writeToFile($filename, $content) {
+		$fp = fopen($filename, "w");
+		fwrite($fp, $content);
+		fclose($fp);
+	}
+
+	/**
+	 * Prints a list of all Web Service components and their configuration options.
+	 */
+	public static function printWebserviceComponents($client) {
+		echo '<h1>Web Service Information</h1>';
+
+		echo '<h2>Knowledge Sources</h2>';
+		Utilities :: printComponentsInfo($client, $client->getKnowledgeSources()->item);
+
+		echo '<h2>Reasoners</h2>';
+		Utilities :: printComponentsInfo($client, $client->getReasoners()->item);
+
+		echo '<h2>Learning Problems</h2>';
+		Utilities :: printComponentsInfo($client, $client->getLearningProblems()->item);
+
+		echo '<h2>Learning Algorithms</h2>';
+		Utilities :: printComponentsInfo($client, $client->getLearningAlgorithms()->item);
+	}
+
+	/**
+	 * Print information about all given components.
+	 */
+	public static function printComponentsInfo($client, $components) {
+		foreach ($components as $component)
+			Utilities :: printComponentInfo($client, $component);
+	}
+
+	/**
+	 * Print information about a component.
+	 */
+	public static function printComponentInfo($client, $component) {
+		echo '<h3>component: ' . $component . '</h3>';
+
+		$options = $client->getConfigOptions($component, true)->item;
+		if (!is_array($options))
+			$options = array (
+				$options
+			);
+
+		foreach ($options as $option)
+			Utilities :: printOption($option);
+	}
+
+	/**
+	 * Prints information about an option.
+	 * 
+	 * @param String Option as returned by the DL-Learner web service 
+	 * getConfigOption() method.
+	 */
+	public static function printOption($option) {
+		$parts = split('#', $option);
+		echo 'option name: <b>' . $parts[0] . '</b><br />';
+		echo 'option description: ' . $parts[1] . '<br />';
+		echo 'option class: ' . $parts[2] . '<br />';
+		if ($parts[3] != 'null')
+			echo 'option name: ' . $parts[3] . '<br />';
+		echo '<br />';
+	}
+}
+?>


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dl-learner-svn Mailing List for DL-Learner (Page 149)

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