Building params and headers tables

src/main/java/ovh/alexisdelhaie/endpoint/Application.java

@@ -1,8 +1,10 @@
 package ovh.alexisdelhaie.endpoint;
 
 import com.formdev.flatlaf.FlatIntelliJLaf;
+import ovh.alexisdelhaie.endpoint.utils.Tools;
 
 import javax.swing.*;
+import java.awt.*;
 
 public class Application {
 
@@ -12,7 +14,7 @@ public class Application {
         dialog.pack();
         dialog.setTitle("EndPoint");
         dialog.setVisible(true);
-        dialog.centerFrame();
+        Tools.centerFrame(dialog);
     }
 
 }

src/main/java/ovh/alexisdelhaie/endpoint/MainWindow.form

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="ovh.alexisdelhaie.endpoint.MainWindow">
-  <grid id="cbd77" binding="contentPane" layout-manager="GridLayoutManager" row-count="3" column-count="3" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+  <grid id="cbd77" binding="contentPane" layout-manager="GridLayoutManager" row-count="4" column-count="9" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
     <margin top="10" left="10" bottom="10" right="10"/>
     <constraints>
       <xy x="48" y="54" width="1098" height="665"/>
@@ -8,7 +8,7 @@
     <properties/>
     <border type="none"/>
     <children>
-      <component id="d63fe" class="javax.swing.JComboBox" binding="comboBox1" default-binding="true">
+      <component id="d63fe" class="javax.swing.JComboBox" binding="methodBox">
         <constraints>
           <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="2" anchor="8" fill="1" indent="0" use-parent-layout="false"/>
         </constraints>
@@ -22,9 +22,9 @@
           </model>
         </properties>
       </component>
-      <component id="4f0bf" class="javax.swing.JTextField" binding="textField1" default-binding="true">
+      <component id="4f0bf" class="javax.swing.JTextField" binding="urlField">
         <constraints>
-          <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+          <grid row="0" column="1" row-span="1" col-span="7" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
             <preferred-size width="150" height="-1"/>
           </grid>
         </constraints>
@@ -32,7 +32,7 @@
       </component>
       <component id="842fb" class="javax.swing.JButton" binding="sendButton">
         <constraints>
-          <grid row="0" column="2" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+          <grid row="0" column="8" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties>
           <text value="Send"/>
@@ -40,7 +40,7 @@
       </component>
       <tabbedpane id="59105" binding="tabbedPane1" default-binding="true">
         <constraints>
-          <grid row="2" column="0" row-span="1" col-span="3" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
+          <grid row="2" column="0" row-span="1" col-span="9" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
             <preferred-size width="200" height="200"/>
           </grid>
         </constraints>
@@ -50,12 +50,51 @@
       </tabbedpane>
       <component id="269e7" class="javax.swing.JButton" binding="newTabButton">
         <constraints>
-          <grid row="1" column="2" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+          <grid row="1" column="8" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties>
           <text value="+"/>
         </properties>
       </component>
+      <component id="865d3" class="javax.swing.JProgressBar" binding="progressBar1" default-binding="true">
+        <constraints>
+          <grid row="3" column="0" row-span="1" col-span="2" vsize-policy="0" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <indeterminate value="true"/>
+          <visible value="false"/>
+        </properties>
+      </component>
+      <hspacer id="99ebb">
+        <constraints>
+          <grid row="3" column="3" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <hspacer id="106fa">
+        <constraints>
+          <grid row="3" column="4" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <hspacer id="82267">
+        <constraints>
+          <grid row="3" column="5" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <hspacer id="b9351">
+        <constraints>
+          <grid row="3" column="6" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <hspacer id="14145">
+        <constraints>
+          <grid row="3" column="7" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <hspacer id="330cc">
+        <constraints>
+          <grid row="3" column="2" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
     </children>
   </grid>
 </form>

src/main/java/ovh/alexisdelhaie/endpoint/MainWindow.java

@@ -6,14 +6,21 @@ import ovh.alexisdelhaie.endpoint.http.HttpClient;
 import ovh.alexisdelhaie.endpoint.http.Request;
 import ovh.alexisdelhaie.endpoint.http.RequestBuilder;
 import ovh.alexisdelhaie.endpoint.http.Response;
+import ovh.alexisdelhaie.endpoint.utils.MessageDialog;
 
 import javax.swing.*;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+import javax.swing.event.DocumentEvent;
+import javax.swing.event.DocumentListener;
 import java.awt.*;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.io.IOException;
 import java.security.KeyManagementException;
 import java.security.NoSuchAlgorithmException;
+import java.util.HashMap;
+import java.util.Objects;
 import java.util.Optional;
 
 public class MainWindow extends JFrame {
@@ -23,65 +30,107 @@ public class MainWindow extends JFrame {
     public final static int HEIGHT = 720;
 
     private JPanel contentPane;
-    private JComboBox<String> comboBox1;
+    private JComboBox<String> methodBox;
-    private JTextField textField1;
+    private JTextField urlField;
     private JButton sendButton;
     private JTabbedPane tabbedPane1;
     private JButton newTabButton;
+    private JProgressBar progressBar1;
 
-    private ConfigurationProperties props;
+    private final ConfigurationProperties props;
+    private final HashMap<Integer, String> urls;
 
     public MainWindow() {
         props = new ConfigurationProperties();
+        urls = new HashMap<>();
         setContentPane(contentPane);
         setMinimumSize(new Dimension(WIDTH, HEIGHT));
         setSize(WIDTH, HEIGHT);
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-        TabBuilder.create(tabbedPane1, "New request");
+        TabBuilder.create(tabbedPane1, "New request", urls);
+        Component tab = tabbedPane1.getSelectedComponent();
+        urls.put(tab.hashCode(), "");
         newTabButton.addMouseListener(new MouseAdapter() {
             @Override
             public void mouseClicked(MouseEvent e) {
                 super.mouseClicked(e);
-                TabBuilder.create(tabbedPane1, "New request");
+                TabBuilder.create(tabbedPane1, "New request", urls);
+                Component tab = tabbedPane1.getSelectedComponent();
+                urls.put(tab.hashCode(), "");
             }
         });
         sendButton.addMouseListener(new MouseAdapter() {
             @Override
             public void mouseClicked(MouseEvent e) {
                 super.mouseClicked(e);
-                try {
+                if (!urlField.getText().isBlank()) {
                     sendRequest();
-                } catch (IOException | NoSuchAlgorithmException | KeyManagementException ioException) {
+                } else {
-                    ioException.printStackTrace();
+                    MessageDialog.info("Url field empty", "Please enter an url");
+                }
+            }
+        });
+        tabbedPane1.addChangeListener(new ChangeListener() {
+            public void stateChanged(ChangeEvent e) {
+                if (tabbedPane1.getSelectedIndex() != -1) {
+                    urlField.setText(urls.get(tabbedPane1.getSelectedComponent().hashCode()));
+                }
+            }
+        });
+        urlField.getDocument().addDocumentListener(new DocumentListener() {
+            public void changedUpdate(DocumentEvent e) {
+                warn();
+            }
+            public void removeUpdate(DocumentEvent e) {
+                warn();
+            }
+            public void insertUpdate(DocumentEvent e) {
+                warn();
+            }
+
+            public void warn() {
+                if (tabbedPane1.getSelectedIndex() != -1) {
+                    urls.put(tabbedPane1.getSelectedComponent().hashCode(), urlField.getText());
                 }
             }
         });
     }
 
-    public void centerFrame() {
+    private void sendRequest() {
-        Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
-        int y = (int)( screen.getHeight() / 2 ) - this.getHeight() / 2;
-        int x = (int)( screen.getWidth() / 2 ) - this.getWidth() / 2;
-        this.setLocation(x, y);
-    }
-
-    private void sendRequest() throws IOException, NoSuchAlgorithmException, KeyManagementException {
         Optional<JSplitPane> possibleTab = getSelectedTab();
         if (possibleTab.isPresent()) {
             JSplitPane tab = possibleTab.get();
-            String url = textField1.getText();
+            int i = tabbedPane1.indexOfComponent(tab);
-            HttpClient h = new HttpClient(props);
+            JTextArea bodyField = TabBuilder.getResponseArea(i);
-            Request r = new RequestBuilder(url)
+            progressBar1.setVisible(true);
-                    .build();
+            new Thread(() -> {
-            Optional<Response> possibleRes = h.get(r);
+                try {
-            if (possibleRes.isPresent()) {
+                    String url = urlField.getText();
-                Response res = possibleRes.get();
+                    HttpClient h = new HttpClient(props);
-                int i = tabbedPane1.indexOfComponent(tab);
+                    Request r = new RequestBuilder(url)
-                JTextArea t = TabBuilder.getResponseArea(i);
+                            .build();
-                t.setText(res.getBody());
+                    Optional<Response> possibleRes = Optional.empty();
-            }
+                    switch ((String) Objects.requireNonNull(methodBox.getSelectedItem())) {
-        }
+                        case "GET" -> possibleRes = h.get(r);
+                        case "POST" -> possibleRes = h.post(r, "");
+                        case "PUT" -> possibleRes = h.put(r, "");
+                        case "DELETE" -> possibleRes = h.delete(r);
+                        case "HEAD" -> possibleRes = h.head(r);
+                    }
+                    if (possibleRes.isPresent()) {
+                        Response res = possibleRes.get();
 
+                        bodyField.setText(res.getBody());
+                    }
+                } catch (KeyManagementException | IOException | NoSuchAlgorithmException e) {
+                    bodyField.setText(e.getMessage());
+                } finally {
+                    progressBar1.setVisible(false);
+                }
+            }).start();
+        } else {
+            MessageDialog.error("Error", "Cannot get current tab");
+        }
     }
 
     private Optional<JSplitPane> getSelectedTab() {

src/main/java/ovh/alexisdelhaie/endpoint/builder/TabBuilder.java

@@ -1,21 +1,33 @@
 package ovh.alexisdelhaie.endpoint.builder;
 
+import ovh.alexisdelhaie.endpoint.utils.InsertToTableDialog;
+import ovh.alexisdelhaie.endpoint.utils.KeyValuePair;
+
 import javax.swing.*;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.table.DefaultTableModel;
 import javax.swing.table.TableColumn;
 import java.awt.*;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.io.IOException;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
 
 public class TabBuilder {
 
     private static HashMap<String, Component> indexes = new HashMap<>();
 
-    public static void create(JTabbedPane tab, String label) {
+    public static void create(JTabbedPane tab, String label, HashMap<Integer, String> urls) {
         Component c = tab.add("", buildMainPanel());
         int index = tab.indexOfComponent(c);
         updateIndexes(index);
-        tab.setTabComponentAt(index, buildTabPanel(tab, c, label));
+        tab.setTabComponentAt(index, buildTabPanel(tab, c, label, urls));
         tab.setSelectedComponent(c);
     }
 
@@ -24,7 +36,7 @@ public class TabBuilder {
         indexes.remove("main[waiting].responseTextArea");
     }
 
-    private static JPanel buildTabPanel(JTabbedPane tab, Component c, String label) {
+    private static JPanel buildTabPanel(JTabbedPane tab, Component c, String label, HashMap<Integer, String> urls) {
         JPanel p = new JPanel(new GridBagLayout());
         p.setOpaque(false);
         JLabel l = new JLabel(label);
@@ -35,11 +47,11 @@ public class TabBuilder {
         p.add(l, g);
         g.gridx++;
         g.weightx = 0;
-        p.add(buildCloseButton(tab, c), g);
+        p.add(buildCloseButton(tab, c, urls), g);
         return p;
     }
 
-    private static JButton buildCloseButton(JTabbedPane tab, Component c) {
+    private static JButton buildCloseButton(JTabbedPane tab, Component c, HashMap<Integer, String> urls) {
         JButton b = new JButton("×");
         b.setBorderPainted(false);
         b.setFocusPainted(false);
@@ -49,6 +61,7 @@ public class TabBuilder {
             @Override
             public void mouseClicked(MouseEvent e) {
                 super.mouseClicked(e);
+                urls.remove(c.hashCode());
                 tab.remove(c);
             }
         });
@@ -70,9 +83,9 @@ public class TabBuilder {
 
     private static JTabbedPane buildParametersTabbedPane() {
         JTabbedPane p = new JTabbedPane();
-        p.add("Params", buildTable());
+        p.add("Params", buildParamsTab());
         p.add("Authorization", new JPanel());
-        p.add("Headers", buildTable());
+        p.add("Headers", buildParamsTab());
         p.add("Body", new JTextArea());
         return p;
     }
@@ -92,4 +105,54 @@ public class TabBuilder {
         return (JTextArea) indexes.get("main[" + index + "].responseTextArea");
     }
 
+    private static JPanel buildParamsTab() {
+        String[] headers = {"Keys", "Values"};
+        Object[][] datas = {};
+        DefaultTableModel model = new DefaultTableModel(datas, headers);
+        JPanel p = new JPanel();
+        JTable t = new JTable(model);
+        JButton addButton = new JButton("Add new parameter");
+        JButton delButton = new JButton("Delete parameter");
+        delButton.setEnabled(false);
+        t.getSelectionModel().addListSelectionListener(new ListSelectionListener(){
+            public void valueChanged(ListSelectionEvent event) {
+                delButton.setEnabled(t.getSelectedRows().length > 0);
+            }
+        });
+        addButton.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                super.mouseClicked(e);
+                Optional<KeyValuePair> result = InsertToTableDialog.showDialog("Enter value");
+                if (result.isPresent()) {
+                    DefaultTableModel m = (DefaultTableModel) t.getModel();
+                    m.addRow(new Object[]{result.get().getKey(), result.get().getValue()});
+                }
+            }
+        });
+        delButton.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                super.mouseClicked(e);
+                int n = t.getSelectedRows().length;
+                if (n > 0) {
+                    DefaultTableModel m = (DefaultTableModel) t.getModel();
+                    for(int i = 0; i < n; i++) {
+                        m.removeRow(t.getSelectedRow());
+                    }
+                }
+            }
+        });
+        p.add(addButton);
+        p.add(delButton);
+        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
+
+        JPanel pp = new JPanel();
+        pp.add(p);
+        JScrollPane sp = new JScrollPane(t);
+        pp.add(sp);
+        pp.setLayout(new BoxLayout(pp, BoxLayout.Y_AXIS));
+        return pp;
+    }
+
 }

src/main/java/ovh/alexisdelhaie/endpoint/utils/InsertToTableDialog.form

@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="ovh.alexisdelhaie.endpoint.utils.InsertToTableDialog">
+  <grid id="cbd77" binding="contentPane" layout-manager="GridLayoutManager" row-count="2" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="10" left="10" bottom="10" right="10"/>
+    <constraints>
+      <xy x="48" y="54" width="436" height="214"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <grid id="94766" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <hspacer id="98af6">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+            </constraints>
+          </hspacer>
+          <grid id="9538f" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="true" same-size-vertically="false" hgap="-1" vgap="-1">
+            <margin top="0" left="0" bottom="0" right="0"/>
+            <constraints>
+              <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties/>
+            <border type="none"/>
+            <children>
+              <component id="e7465" class="javax.swing.JButton" binding="buttonOK">
+                <constraints>
+                  <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="OK"/>
+                </properties>
+              </component>
+              <component id="5723f" class="javax.swing.JButton" binding="buttonCancel">
+                <constraints>
+                  <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Cancel"/>
+                </properties>
+              </component>
+            </children>
+          </grid>
+        </children>
+      </grid>
+      <grid id="e3588" layout-manager="GridLayoutManager" row-count="3" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <component id="c8c26" class="javax.swing.JLabel" binding="message">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="2" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <font size="24"/>
+              <text value="Label"/>
+            </properties>
+          </component>
+          <component id="b2442" class="javax.swing.JTextField" binding="keyField">
+            <constraints>
+              <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+                <preferred-size width="150" height="-1"/>
+              </grid>
+            </constraints>
+            <properties/>
+          </component>
+          <component id="2a539" class="javax.swing.JTextField" binding="valueField">
+            <constraints>
+              <grid row="2" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+                <preferred-size width="150" height="-1"/>
+              </grid>
+            </constraints>
+            <properties/>
+          </component>
+          <component id="ae42e" class="javax.swing.JLabel">
+            <constraints>
+              <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Key"/>
+            </properties>
+          </component>
+          <component id="481b3" class="javax.swing.JLabel">
+            <constraints>
+              <grid row="2" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Value"/>
+            </properties>
+          </component>
+        </children>
+      </grid>
+    </children>
+  </grid>
+</form>

src/main/java/ovh/alexisdelhaie/endpoint/utils/InsertToTableDialog.java

@@ -0,0 +1,79 @@
+package ovh.alexisdelhaie.endpoint.utils;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.util.Optional;
+
+public class InsertToTableDialog extends JDialog {
+
+    public static final int WIDTH = 325;
+    public static final int HEIGHT = 195;
+
+    private JPanel contentPane;
+    private JButton buttonOK;
+    private JButton buttonCancel;
+    private JTextField keyField;
+    private JTextField valueField;
+    private JLabel message;
+
+    private boolean accepted = false;
+
+    private InsertToTableDialog(String message) {
+        setTitle("Insert");
+        setContentPane(contentPane);
+        setModal(true);
+        getRootPane().setDefaultButton(buttonOK);
+        this.message.setText(message);
+
+        buttonOK.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onOK();
+            }
+        });
+
+        buttonCancel.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onCancel();
+            }
+        });
+
+        // call onCancel() when cross is clicked
+        setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
+        addWindowListener(new WindowAdapter() {
+            public void windowClosing(WindowEvent e) {
+                onCancel();
+            }
+        });
+
+        // call onCancel() on ESCAPE
+        contentPane.registerKeyboardAction(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onCancel();
+            }
+        }, KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
+    }
+
+    private void onOK() {
+        accepted = true;
+        dispose();
+    }
+
+    private void onCancel() {
+        dispose();
+    }
+
+    public static Optional<KeyValuePair> showDialog(String message) {
+        InsertToTableDialog dialog = new InsertToTableDialog(message);
+        dialog.setModal(true);
+        dialog.setMinimumSize(new Dimension(WIDTH, HEIGHT));
+        dialog.setMaximumSize(new Dimension(WIDTH, HEIGHT));
+        dialog.setResizable(false);
+        Tools.centerFrame(dialog);
+        dialog.setVisible(true);
+        if (dialog.accepted && !dialog.keyField.getText().isBlank()) {
+            return Optional.of(new KeyValuePair(dialog.keyField.getText(), dialog.valueField.getText()));
+        }
+        return Optional.empty();
+    }
+}

src/main/java/ovh/alexisdelhaie/endpoint/utils/KeyValuePair.java

@@ -0,0 +1,20 @@
+package ovh.alexisdelhaie.endpoint.utils;
+
+public class KeyValuePair {
+
+    private String key;
+    private String value;
+
+    public KeyValuePair(String key, String value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public String getValue() {
+        return value;
+    }
+}

src/main/java/ovh/alexisdelhaie/endpoint/utils/Tools.java

@@ -0,0 +1,21 @@
+package ovh.alexisdelhaie.endpoint.utils;
+
+import java.awt.*;
+
+public class Tools {
+
+    public static Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
+
+    public static void centerFrame(Dialog dialog) {
+        int y = (int)( screen.getHeight() / 2 ) - dialog.getHeight() / 2;
+        int x = (int)( screen.getWidth() / 2 ) - dialog.getWidth() / 2;
+        dialog.setLocation(x, y);
+    }
+
+    public static void centerFrame(Frame frame) {
+        int y = (int)( screen.getHeight() / 2 ) - frame.getHeight() / 2;
+        int x = (int)( screen.getWidth() / 2 ) - frame.getWidth() / 2;
+        frame.setLocation(x, y);
+    }
+
+}