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[DL-Learner SVN] SF.net SVN: dl-learner:[3424] trunk/interfaces/src/main/java/org/dllearner/ server/Rest.java
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From: <ku...@us...> - 2011-11-21 18:25:17
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Revision: 3424
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3424&view=rev
Author: kurzum
Date: 2011-11-21 18:25:06 +0000 (Mon, 21 Nov 2011)
Log Message:
-----------
added generic rest interface
Modified Paths:
--------------
trunk/interfaces/src/main/java/org/dllearner/server/Rest.java
Modified: trunk/interfaces/src/main/java/org/dllearner/server/Rest.java
===================================================================
--- trunk/interfaces/src/main/java/org/dllearner/server/Rest.java 2011-11-21 15:34:59 UTC (rev 3423)
+++ trunk/interfaces/src/main/java/org/dllearner/server/Rest.java 2011-11-21 18:25:06 UTC (rev 3424)
@@ -1,8 +1,10 @@
package org.dllearner.server;
-import com.jamonapi.Monitor;
-import com.jamonapi.MonitorFactory;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.httpclient.util.ExceptionUtil;
+import org.apache.commons.lang.exception.ExceptionUtils;
+import org.dllearner.kb.sparql.SparqlQueryDescriptionConvertVisitor;
+import org.dllearner.learningproblems.EvaluatedDescriptionPosNeg;
+import org.json.simple.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -12,8 +14,6 @@
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
-import java.net.URLEncoder;
-import java.security.InvalidParameterException;
import java.util.HashMap;
import java.util.Map;
@@ -41,6 +41,8 @@
* @throws java.io.IOException
*/
private void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
+ JSONObject result = new JSONObject();
+ JSONObject learningResult = new JSONObject();
try {
String conf = null;
if (!isSet("conf", httpServletRequest)) {
@@ -49,80 +51,77 @@
conf = httpServletRequest.getParameter("conf");
}
- /*todo learn
- Description d = learn (conf);
- String concept = d.getConceptAsString ();
- String sparql = new SPARLQConverter().convert(d);
- */
- String concept = "hasCar some (ClosedCar and ShortCar)";
- String sparql = "SELECT ?instances { ?instances :hasCar ?o . ?o rdf:type :ClosedCar. ?o2 rdf:type :ShortCar ";
+ /*todo learn*/
- String result="{\"concept\": \""+concept+"\", \"SPARQL\":\""+sparql+"\"}";
- result+="\n\nconf was:\n"+conf;
+ if (isSet("debug", httpServletRequest) && httpServletRequest.getParameter("debug").equalsIgnoreCase("true")) {
- httpServletResponse.setContentType("text/plain");
- PrintWriter out = httpServletResponse.getWriter();
- out.println(result);
- out.close();
+ String manchester = "author some (Artist and Writer)";
+ String sparql = "prefix dbo: <http://dbpedia.org/ontology/>\n" +
+ "SELECT ?instances WHERE {\n" +
+ "?instances dbo:author ?o . ?o a dbo:Artist . ?o a dbo:Writer .\n" +
+ "} ";
+
+ learningResult.put("success", "1");
+ learningResult.put("manchester", manchester);
+ learningResult.put("kbsyntax", "other syntax");
+ learningResult.put("sparql", sparql);
+ learningResult.put("truePositives", "uri1, uri2");
+ learningResult.put("truePositives", "uri1, uri2");
+ learningResult.put("trueNegatives", "uri1, uri2");
+ learningResult.put("falseNegatives", "uri1, uri2");
+ } else {
+
+ EvaluatedDescriptionPosNeg ed = learn(conf);
+
+ SparqlQueryDescriptionConvertVisitor sqd = new SparqlQueryDescriptionConvertVisitor();
+ learningResult.put("success", "1");
+ learningResult.put("manchester", ed.getDescription().toManchesterSyntaxString(null, null));
+ learningResult.put("kbsyntax", ed.getDescription().toKBSyntaxString());
+ learningResult.put("sparql", sqd.getSparqlQuery(ed.getDescription()));
+ learningResult.put("truePositives", EvaluatedDescriptionPosNeg.getJSONArray(ed.getCoveredPositives()));
+ learningResult.put("falsePositives", EvaluatedDescriptionPosNeg.getJSONArray(ed.getNotCoveredPositives()));
+ learningResult.put("trueNegatives", EvaluatedDescriptionPosNeg.getJSONArray(ed.getNotCoveredNegatives()));
+ learningResult.put("falseNegatives", EvaluatedDescriptionPosNeg.getJSONArray(ed.getCoveredNegatives()));
+ }
+
+
} catch (IllegalArgumentException e) {
String msg = e.getMessage();// + printParameterMap(httpServletRequest);
log.error(msg);
- httpServletResponse.setContentType("text/plain");
- PrintWriter out = httpServletResponse.getWriter();
- out.println(msg);
- out.close();
+ learningResult.put("success", "0");
+ learningResult.put("error", msg);
+ learningResult.put("stacktrace", ExceptionUtils.getFullStackTrace(e));
} catch (Exception e) {
String msg = "An error occured: " + e.getMessage(); //+ printParameterMap(httpServletRequest);
log.error(msg, e);
- httpServletResponse.setContentType("text/plain");
- PrintWriter out = httpServletResponse.getWriter();
- out.println(msg);
- out.close();
-
+ learningResult.put("success", "0");
+ learningResult.put("error", msg);
+ learningResult.put("stacktrace", ExceptionUtils.getFullStackTrace(e));
}
- }
+ result.put("learningresult", learningResult);
+ httpServletResponse.setContentType("text/plain");
+ PrintWriter out = httpServletResponse.getWriter();
+ out.println(result.toJSONString());
+ out.close();
-
- public static String requiredParameter(String parameterName, HttpServletRequest hsr) {
-
- if (!isSet(parameterName, hsr)) {
- throw new IllegalArgumentException("Missing parameter: " + parameterName + " is required. ");
- }
- return hsr.getParameter(parameterName);
}
- public static String requiredParameter(String parameterName, HttpServletRequest hsr, String... requiredValues) {
- String value = requiredParameter(parameterName, hsr);
- if (!oneOf(value, requiredValues)) {
- throw new InvalidParameterException("Wrong value for parameter " + parameterName + ", value was: " + value + ", but must be one of ( " + StringUtils.join(requiredValues, ", ") + " ) ");
- }
- return value;
- }
+ /**
+ * TODO
+ * This function takes the config string as in a conf file and the returns an EvaluatedDescription
+ *
+ * @param conf the content of a conf file
+ * @return
+ */
+ public EvaluatedDescriptionPosNeg learn(String conf) {
-
- public static String getDocumentation(String serviceUrl) {
- String doc = "";
- try {
- doc = "\nExample1: \n " + serviceUrl + "?input=" + URLEncoder.encode("That's a lot of nuts! That'll be four bucks, baby! You want fries with that? ", "UTF-8") + "&type=text";
- doc += "\nExample2: \n " + serviceUrl + "?input=" + URLEncoder.encode("That's a lot of nuts! That's a lot of nuts! ", "UTF-8") + "&type=text";
- } catch (Exception e) {
- log.error("", e);
- }
- return doc;
+ return null;
}
- public static boolean oneOf(String value, String... possibleValues) {
- for (String s : possibleValues) {
- if (s.equals(value)) {
- return true;
- }
- }
- return false;
- }
public static boolean isSet(String parameterName, HttpServletRequest hsr) {
boolean retVal = hsr.getParameterValues(parameterName) != null && hsr.getParameterValues(parameterName).length == 1 && hsr.getParameter(parameterName).length() > 0;
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