Added more query utils, aggregate stats, and randomized testing data.

recorder/src/main/java/com/github/andrewlalis/running_every_day/RecorderApp.java

@@ -1,7 +1,7 @@
 package com.github.andrewlalis.running_every_day;
 
 import com.formdev.flatlaf.FlatLightLaf;
-import com.github.andrewlalis.running_every_day.data.DataSource;
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
 import com.github.andrewlalis.running_every_day.view.RecorderAppWindow;
 import com.github.andrewlalis.running_every_day.view.WindowDataSourceCloser;
 

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/RunRecord.java

@@ -1,5 +1,7 @@
 package com.github.andrewlalis.running_every_day.data;
 
+import com.github.andrewlalis.running_every_day.data.db.ResultSetMapper;
+
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 import java.sql.ResultSet;
@@ -46,6 +48,16 @@ public record RunRecord(
         return weightKg.multiply(BigDecimal.valueOf(1000));
     }
 
+    public Duration averagePacePerKm() {
+        long msPerKm = (long) Math.floor(duration.toMillis() / distanceKm.doubleValue());
+        return Duration.ofMillis(msPerKm);
+    }
+
+    public String averagePacePerKmFormatted() {
+        var dur = averagePacePerKm();
+        return String.format("%02d:%02d.%03d", dur.toMinutesPart(), dur.toSecondsPart(), dur.toMillisPart());
+    }
+
     public static class Mapper implements ResultSetMapper<RunRecord> {
         @Override
         public RunRecord map(ResultSet rs) throws SQLException {

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/RunRecordRepository.java

@@ -1,11 +1,22 @@
 package com.github.andrewlalis.running_every_day.data;
 
+import com.github.andrewlalis.running_every_day.data.db.Page;
+import com.github.andrewlalis.running_every_day.data.db.Pagination;
+import com.github.andrewlalis.running_every_day.data.db.Queries;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.sql.Connection;
 import java.sql.SQLException;
 import java.sql.Statement;
+import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Data access object for interacting with run records in the database.
+ * @param conn The database connection.
+ */
 public record RunRecordRepository(Connection conn) {
     public Page<RunRecord> findAll(Pagination pagination) throws SQLException {
         String query = "SELECT * FROM run ORDER BY date ASC";
@@ -62,22 +73,20 @@ public record RunRecordRepository(Connection conn) {
         }
     }
 
-    public long countAll() throws SQLException {
-        String query = "SELECT COUNT(id) FROM run";
-        try (
-                var stmt = conn.prepareStatement(query);
-                var rs = stmt.executeQuery()
-        ) {
-            if (rs.next()) {
-                return rs.getLong(1);
-            } else {
-                throw new SQLException("Missing count.");
-            }
-        }
+    public long pageCount(int pageSize) throws SQLException {
+        return Queries.pageCount(conn, "SELECT COUNT(id) FROM run", pageSize);
     }
 
-    public long pageCount(int size) throws SQLException {
-        long recordCount = countAll();
-        return (recordCount / size) + (recordCount % size != 0 ? 1 : 0);
+    // Aggregate stats:
+
+    public BigDecimal getTotalDistanceKm() throws SQLException {
+        long totalDistanceMeters = Queries.getLong(conn, "SELECT SUM(distance) FROM run");
+        return BigDecimal.valueOf(totalDistanceMeters, 3)
+                .divide(BigDecimal.valueOf(1000, 3), RoundingMode.UNNECESSARY);
+    }
+
+    public Duration getTotalDuration() throws SQLException {
+        long totalDurationSeconds = Queries.getLong(conn, "SELECT SUM(duration) FROM run");
+        return Duration.ofSeconds(totalDurationSeconds);
     }
 }

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/db/DataSource.java

@@ -1,4 +1,6 @@
-package com.github.andrewlalis.running_every_day.data;
+package com.github.andrewlalis.running_every_day.data.db;
+
+import com.github.andrewlalis.running_every_day.data.RunRecordRepository;
 
 import java.io.IOException;
 import java.io.UncheckedIOException;
@@ -6,8 +8,6 @@ import java.nio.charset.StandardCharsets;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.List;
 
 /**
  * A single object that serves as the application's data source.
@@ -24,14 +24,8 @@ public class DataSource {
         return new RunRecordRepository(this.conn);
     }
 
-    public <T> List<T> query(String query, ResultSetMapper<T> mapper) throws SQLException {
-        try (var stmt = conn.prepareStatement(query); var rs = stmt.executeQuery()) {
-            List<T> items = new ArrayList<>();
-            while (rs.next()) {
-                items.add(mapper.map(rs));
-            }
-            return items;
-        }
+    public Connection conn() {
+        return conn;
     }
 
     public void close() throws SQLException {
@@ -64,7 +58,7 @@ public class DataSource {
         }
     }
 
-    private static String readResource(String name) {
+    public static String readResource(String name) {
         try (var in = DataSource.class.getClassLoader().getResourceAsStream(name)) {
             if (in == null) {
                 throw new RuntimeException("Missing resource: " + name);

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/db/Page.java

@@ -1,4 +1,4 @@
-package com.github.andrewlalis.running_every_day.data;
+package com.github.andrewlalis.running_every_day.data.db;
 
 import java.sql.ResultSet;
 import java.sql.SQLException;

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/db/Pagination.java

@@ -1,4 +1,4 @@
-package com.github.andrewlalis.running_every_day.data;
+package com.github.andrewlalis.running_every_day.data.db;
 
 import java.sql.Connection;
 import java.sql.SQLException;

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/db/Queries.java

@@ -0,0 +1,74 @@
+package com.github.andrewlalis.running_every_day.data.db;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.Optional;
+
+public final class Queries {
+    private Queries() {}
+
+    public static <T> Optional<T> findOne(
+            Connection c,
+            String query,
+            StatementModifier modifier,
+            ResultSetMapper<T> mapper
+    ) throws SQLException {
+        try (var stmt = c.prepareStatement(query)) {
+            modifier.apply(stmt);
+            try (var rs = stmt.executeQuery()) {
+                if (rs.next()) {
+                    return Optional.of(mapper.map(rs));
+                }
+                return Optional.empty();
+            }
+        }
+    }
+
+    public static <T> Optional<T> findOne(Connection c, String query, ResultSetMapper<T> mapper) throws SQLException {
+        try (var stmt = c.prepareStatement(query)) {
+            try (var rs = stmt.executeQuery()) {
+                if (rs.next()) {
+                    return Optional.of(mapper.map(rs));
+                }
+                return Optional.empty();
+            }
+        }
+    }
+
+    public static <T> T getOne(Connection c, String query, ResultSetMapper<T> mapper) throws SQLException {
+        return findOne(c, query, mapper).orElseThrow(() -> new SQLException("Missing required SQL result."));
+    }
+
+    public static long getLong(Connection c, String query) throws SQLException {
+        return getOne(c, query, rs -> rs.getLong(1));
+    }
+
+    public static String getString(Connection c, String query) throws SQLException {
+        return getOne(c, query, rs -> rs.getString(1));
+    }
+
+    public static long count(Connection c, String query) throws SQLException {
+        try (var stmt = c.prepareStatement(query); var rs = stmt.executeQuery()) {
+            if (rs.next()) {
+                return rs.getLong(1);
+            } else {
+                throw new SQLException("Result set for count query is empty.");
+            }
+        }
+    }
+
+    public static long pageCount(Connection c, String query, int pageSize) throws SQLException {
+        long recordCount = count(c, query);
+        long pageCount = recordCount / pageSize;
+        if (recordCount % pageSize != 0) {
+            pageCount++;
+        }
+        return pageCount;
+    }
+
+    public static int update(Connection c, String query) throws SQLException {
+        try (var stmt = c.prepareStatement(query)) {
+            return stmt.executeUpdate();
+        }
+    }
+}

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/db/ResultSetMapper.java

@@ -1,4 +1,4 @@
-package com.github.andrewlalis.running_every_day.data;
+package com.github.andrewlalis.running_every_day.data.db;
 
 import java.sql.ResultSet;
 import java.sql.SQLException;

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/db/StatementModifier.java

@@ -0,0 +1,9 @@
+package com.github.andrewlalis.running_every_day.data.db;
+
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+
+@FunctionalInterface
+public interface StatementModifier {
+    void apply(PreparedStatement stmt) throws SQLException;
+}

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/AddRunRecordDialog.java

@@ -1,6 +1,6 @@
 package com.github.andrewlalis.running_every_day.view;
 
-import com.github.andrewlalis.running_every_day.data.DataSource;
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
 import com.github.andrewlalis.running_every_day.data.RunRecord;
 
 import javax.swing.*;
@@ -15,7 +15,6 @@ import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.regex.Pattern;
 
 public class AddRunRecordDialog extends JDialog {
 	private final DataSource dataSource;

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/AggregateStatisticsPanel.java

@@ -1,4 +1,55 @@
 package com.github.andrewlalis.running_every_day.view;
 
-public class AggregateStatisticsPanel {
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
+
+import javax.swing.*;
+import java.awt.*;
+import java.sql.SQLException;
+
+public class AggregateStatisticsPanel extends JPanel {
+    private final DataSource dataSource;
+
+    private final JTextField totalDistanceField;
+    private final JTextField totalDurationField;
+
+    public AggregateStatisticsPanel(DataSource dataSource) {
+        super(new BorderLayout());
+        this.dataSource = dataSource;
+
+        totalDistanceField = new JTextField();
+        totalDistanceField.setEditable(false);
+        totalDurationField = new JTextField();
+        totalDurationField.setEditable(false);
+
+        JPanel statsPanel = new JPanel(new GridLayout(2, 2));
+        statsPanel.add(new JLabel("Total Distance (Km)"));
+        statsPanel.add(totalDistanceField);
+        statsPanel.add(new JLabel("Total Duration"));
+        statsPanel.add(totalDurationField);
+        this.add(statsPanel, BorderLayout.CENTER);
+
+        JPanel controlsPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
+        JButton refreshButton = new JButton("Refresh");
+        refreshButton.addActionListener(e -> refreshStats());
+        controlsPanel.add(refreshButton);
+        this.add(controlsPanel, BorderLayout.NORTH);
+
+        SwingUtilities.invokeLater(this::refreshStats);
+    }
+
+    private void refreshStats() {
+        try {
+            totalDistanceField.setText(dataSource.runRecords().getTotalDistanceKm().toPlainString() + " Km");
+            var totalDuration = dataSource.runRecords().getTotalDuration();
+            String durationStr = String.format(
+                    "%d days, %d hours, %d minutes",
+                    totalDuration.toDaysPart(),
+                    totalDuration.toHoursPart(),
+                    totalDuration.toMinutesPart()
+            );
+            totalDurationField.setText(durationStr);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
 }

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/RecorderAppWindow.java

@@ -1,6 +1,6 @@
 package com.github.andrewlalis.running_every_day.view;
 
-import com.github.andrewlalis.running_every_day.data.DataSource;
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
 
 import javax.swing.*;
 import java.awt.*;
@@ -18,7 +18,7 @@ public class RecorderAppWindow extends JFrame {
     private Container buildGui(DataSource dataSource) {
         JTabbedPane tabbedPane = new JTabbedPane();
         tabbedPane.addTab("Run Records", new RunRecordsPanel(dataSource));
-        tabbedPane.addTab("Aggregate Statistics", new JPanel());
+        tabbedPane.addTab("Aggregate Statistics", new AggregateStatisticsPanel(dataSource));
         tabbedPane.addTab("Charts", new ChartsPanel());
         return tabbedPane;
     }

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/RunRecordTableModel.java

@@ -1,8 +1,8 @@
 package com.github.andrewlalis.running_every_day.view;
 
-import com.github.andrewlalis.running_every_day.data.DataSource;
-import com.github.andrewlalis.running_every_day.data.Pagination;
 import com.github.andrewlalis.running_every_day.data.RunRecord;
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
+import com.github.andrewlalis.running_every_day.data.db.Pagination;
 
 import javax.swing.table.AbstractTableModel;
 import java.sql.SQLException;
@@ -88,7 +88,7 @@ public class RunRecordTableModel extends AbstractTableModel {
 
     @Override
     public int getColumnCount() {
-        return 7;
+        return 8;
     }
 
     @Override
@@ -101,8 +101,9 @@ public class RunRecordTableModel extends AbstractTableModel {
             case 2 -> r.startTime().toString();
             case 3 -> r.distanceKm().toPlainString();
             case 4 -> r.durationFormatted();
-            case 5 -> r.weightKg().toPlainString();
-            case 6 -> r.comment();
+            case 5 -> r.averagePacePerKmFormatted();
+            case 6 -> r.weightKg().toPlainString();
+            case 7 -> r.comment();
             default -> null;
         };
     }
@@ -115,8 +116,9 @@ public class RunRecordTableModel extends AbstractTableModel {
             case 2 -> "Start Time";
             case 3 -> "Distance (Km)";
             case 4 -> "Duration";
-            case 5 -> "Weight (Kg)";
-            case 6 -> "Comment";
+            case 5 -> "Pace (Min/Km)";
+            case 6 -> "Weight (Kg)";
+            case 7 -> "Comment";
             default -> "Unknown Value";
         };
     }

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/RunRecordsPanel.java

@@ -1,15 +1,26 @@
 package com.github.andrewlalis.running_every_day.view;
 
-import com.github.andrewlalis.running_every_day.data.DataSource;
+import com.github.andrewlalis.running_every_day.data.RunRecord;
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
+import com.github.andrewlalis.running_every_day.data.db.Queries;
 
 import javax.swing.*;
 import java.awt.*;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.sql.SQLException;
+import java.time.Duration;
+import java.time.LocalDate;
+import java.time.LocalTime;
+import java.util.Random;
 
 /**
  * A panel for displaying a table view of run records, and various controls for
  * navigating the data.
  */
 public class RunRecordsPanel extends JPanel {
+    private final DataSource dataSource;
+
     private final RunRecordTableModel tableModel;
     private final JTextField currentPageField;
     private final JButton firstPageButton;
@@ -19,19 +30,22 @@ public class RunRecordsPanel extends JPanel {
 
     public RunRecordsPanel(DataSource dataSource) {
         super(new BorderLayout());
+        this.dataSource = dataSource;
         this.tableModel = new RunRecordTableModel(dataSource);
 
         var table = new JTable(tableModel);
         table.getTableHeader().setReorderingAllowed(false);
         table.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN);
-        table.getColumnModel().getColumn(0).setMaxWidth(40);
+        table.getColumnModel().getColumn(0).setMaxWidth(50);
         table.getColumnModel().getColumn(1).setMaxWidth(80);
-        table.getColumnModel().getColumn(2).setMaxWidth(80);
+        table.getColumnModel().getColumn(2).setMaxWidth(70);
         table.getColumnModel().getColumn(3).setMaxWidth(100);
         table.getColumnModel().getColumn(3).setPreferredWidth(100);
-        table.getColumnModel().getColumn(4).setMaxWidth(80);
-        table.getColumnModel().getColumn(5).setMaxWidth(80);
-        for (int i = 0; i < 6; i++) {
+        table.getColumnModel().getColumn(4).setMaxWidth(60);
+        table.getColumnModel().getColumn(5).setMaxWidth(100);
+        table.getColumnModel().getColumn(5).setPreferredWidth(100);
+        table.getColumnModel().getColumn(6).setMaxWidth(80);
+        for (int i = 0; i < 7; i++) {
             table.getColumnModel().getColumn(i).setResizable(false);
         }
         var scrollPane = new JScrollPane(table, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
@@ -98,6 +112,9 @@ public class RunRecordsPanel extends JPanel {
             }
         });
         actionsPanel.add(addActionButton);
+        JButton generateRandomDataButton = new JButton("Generate Random Data");
+        generateRandomDataButton.addActionListener(e -> generateRandomData());
+        actionsPanel.add(generateRandomDataButton);
         this.add(actionsPanel, BorderLayout.NORTH);
     }
 
@@ -108,4 +125,39 @@ public class RunRecordsPanel extends JPanel {
         lastPageButton.setEnabled(tableModel.canGoToLastPage());
         currentPageField.setText(String.valueOf(tableModel.getPagination().page() + 1));
     }
+
+    private void generateRandomData() {
+        try {
+            var c = dataSource.conn();
+            Queries.update(c, "DELETE FROM run");
+            final int daysToDo = 1000;
+            LocalDate date = LocalDate.now().minusDays(daysToDo);
+            Random rand = new Random();
+            c.setAutoCommit(false);
+            for (int i = 0; i < daysToDo; i++) {
+                LocalTime startTime = LocalTime.of(rand.nextInt(5, 22), rand.nextInt(60));
+                BigDecimal distance = BigDecimal.valueOf(rand.nextInt(1000, 15000), 3)
+                        .divide(BigDecimal.valueOf(1000, 3), RoundingMode.UNNECESSARY);
+                double avgPage = rand.nextDouble(300.0, 700.0);
+                BigDecimal weight = BigDecimal.valueOf(rand.nextInt(75000, 110000), 3)
+                        .divide(BigDecimal.valueOf(1000, 3), RoundingMode.UNNECESSARY);
+                dataSource.runRecords().save(new RunRecord(
+                        0,
+                        date,
+                        startTime,
+                        distance,
+                        Duration.ofSeconds((long) Math.floor(avgPage * distance.doubleValue())),
+                        weight,
+                        "Bleh"
+                ));
+                date = date.plusDays(1);
+            }
+            c.commit();
+            c.setAutoCommit(true);
+            tableModel.firstPage();
+            updateButtonStates();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
 }

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/WindowDataSourceCloser.java

@@ -1,6 +1,6 @@
 package com.github.andrewlalis.running_every_day.view;
 
-import com.github.andrewlalis.running_every_day.data.DataSource;
+import com.github.andrewlalis.running_every_day.data.db.DataSource;
 
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;