84 lines
2.6 KiB
Java
84 lines
2.6 KiB
Java
package de.hsel.spm.baudas.web;
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import com.google.gson.Gson;
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import de.hsel.spm.baudas.analysis.WeekOverview;
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import org.jetbrains.annotations.NotNull;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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/**
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* changes data from week overview into readable format for chart.js
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*
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* @author Johannes Theiner
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* @version 0.1
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* @since 0.1
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**/
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@WebServlet("/week_overview")
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public class WeekOverviewDiagram extends HttpServlet {
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private static final long serialVersionUID = 8484151844118L;
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@Override
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protected void doGet(@NotNull HttpServletRequest req, @NotNull HttpServletResponse resp) throws IOException {
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req.setCharacterEncoding(StandardCharsets.UTF_8.name());
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resp.setCharacterEncoding(StandardCharsets.UTF_8.name());
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resp.setContentType("application/json");
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PrintWriter out = resp.getWriter();
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List<String> definedOrder = Arrays.asList("Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag");
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Map<String, List<String>> result = new HashMap<>();
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Gson gson = new Gson();
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if (req.getParameter("id") == null) {
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result.put("labels", definedOrder);
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result.put("count", new ArrayList<>());
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result.put("revenue", new ArrayList<>());
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out.print(gson.toJson(result));
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return;
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}
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UUID uuid = UUID.fromString(req.getParameter("id"));
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File file = Data.get(uuid);
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WeekOverview overview = new WeekOverview(file);
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List<String> count = new ArrayList<>();
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List<String> revenue = new ArrayList<>();
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List<String> labels = new ArrayList<>(overview.getResult().keySet());
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Comparator<String> comparator = Comparator.comparingInt(definedOrder::indexOf);
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labels.sort(comparator);
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for (String label : labels) {
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Map.Entry<Double, Integer> entry = overview.getResult().get(label);
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revenue.add(entry.getKey().toString());
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count.add(entry.getValue().toString());
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}
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result.put("labels", labels);
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result.put("count", count);
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result.put("revenue", revenue);
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out.print(gson.toJson(result));
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}
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} |