+ started work

Signed-off-by: Johannes Theiner <j.theiner@live.de>
#SPM-18: add work 20m development

src/main/java/de/hsel/spm/baudas/web/ShoppingTimesDiagram.java

@@ -0,0 +1,50 @@
+package de.hsel.spm.baudas.web;
+
+import com.google.gson.Gson;
+import de.hsel.spm.baudas.analysis.ShoppingTimes;
+import org.jetbrains.annotations.NotNull;
+
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ **/
+
+@WebServlet("/shopping_times")
+public class ShoppingTimesDiagram extends HttpServlet {
+
+    @Override
+    protected void doGet(@NotNull HttpServletRequest req, @NotNull HttpServletResponse resp) throws IOException {
+        req.setCharacterEncoding(StandardCharsets.UTF_8.name());
+        resp.setCharacterEncoding(StandardCharsets.UTF_8.name());
+        resp.setContentType("application/json");
+        PrintWriter out = resp.getWriter();
+
+        Map<String, List<Integer>> result = new HashMap<>();
+
+        Gson gson = new Gson();
+
+        SavedFile file = Data.getFiles().peek();
+        if (file == null) {
+            out.print(gson.toJson(result));
+            return;
+        }
+        assert file.getUuid() != null;
+        ShoppingTimes shoppingTimes = new ShoppingTimes(Data.get(file.getUuid()));
+
+        out.print(gson.toJson(shoppingTimes.getResult()));
+
+
+    }
+}

src/main/webapp/version.jsp

@@ -1,7 +1,8 @@
 <%@ page import="weka.core.Version" %>
+<%@ page import="java.io.File" %>
 Server info: <%= application.getServerInfo() %><br>
 Servlet version: <%= application.getMajorVersion() %>.<%= application.getMinorVersion() %><br>
 JSP version: <%= JspFactory.getDefaultFactory().getEngineInfo().getSpecificationVersion() %><br>
 Java version: <%= System.getProperty("java.version") %><br>
-
-Weka version: <%= Version.VERSION %>
+Weka version: <%= Version.VERSION %><br>
+File root: <%= new File("").getAbsolutePath() %>