Don't freeze UI while importing CFP data

kiegroup · Oct 5, 2018 · 8d44244 · 8d44244
1 parent 53880f0
commit 8d44244
Showing 1 changed file with 22 additions and 2 deletions.
diff --git a/...java/org/optaplanner/examples/conferencescheduling/swingui/ConferenceSchedulingPanel.java b/...java/org/optaplanner/examples/conferencescheduling/swingui/ConferenceSchedulingPanel.java
@@ -30,12 +30,15 @@
 import javax.swing.JPanel;
 import javax.swing.JTextField;
 
+import org.optaplanner.examples.common.business.SolutionBusiness;
 import org.optaplanner.examples.common.swingui.SolutionPanel;
 import org.optaplanner.examples.conferencescheduling.domain.ConferenceSolution;
 import org.optaplanner.examples.conferencescheduling.persistence.ConferenceSchedulingCfpDevoxxImporter;
 import org.optaplanner.examples.conferencescheduling.persistence.ConferenceSchedulingXlsxFileIO;
 import org.optaplanner.persistence.common.api.domain.solution.SolutionFileIO;
 
+import static java.util.concurrent.Executors.newSingleThreadExecutor;
+
 public class ConferenceSchedulingPanel extends SolutionPanel<ConferenceSolution> {
 
     public static final String LOGO_PATH = "/org/optaplanner/examples/conferencescheduling/swingui/conferenceSchedulingLogo.png";
@@ -54,8 +57,8 @@ public ConferenceSchedulingPanel() {
             int option = JOptionPane.showConfirmDialog(this, dialogue, "Import", JOptionPane.OK_CANCEL_OPTION);
             if (option == JOptionPane.OK_OPTION) {
                 String conferenceBaseUrl = cfpRestUrlTextField.getText();
-                ConferenceSchedulingCfpDevoxxImporter conferenceSchedulingImporter = new ConferenceSchedulingCfpDevoxxImporter(conferenceBaseUrl);
-                solutionBusiness.setSolution(conferenceSchedulingImporter.importSolution());
+                newSingleThreadExecutor().execute(new ConferenceImporter(conferenceBaseUrl, solutionBusiness));
+                JOptionPane.showMessageDialog(this, "Importing CFP data in progress ...");
             }
         });
 
@@ -106,4 +109,21 @@ public ConferenceSchedulingPanel() {
     @Override
     public void resetPanel(ConferenceSolution solution) {
     }
+
+    private class ConferenceImporter implements Runnable {
+        String conferenceBaseUrl;
+        SolutionBusiness<ConferenceSolution> solutionBusiness;
+
+        public ConferenceImporter(String conferenceBaseUrl, SolutionBusiness<ConferenceSolution> solutionBusiness) {
+            this.conferenceBaseUrl = conferenceBaseUrl;
+            this.solutionBusiness = solutionBusiness;
+        }
+
+        @Override
+        public void run() {
+            ConferenceSchedulingCfpDevoxxImporter conferenceSchedulingImporter = new ConferenceSchedulingCfpDevoxxImporter(conferenceBaseUrl);
+            solutionBusiness.setSolution(conferenceSchedulingImporter.importSolution());
+            JOptionPane.showMessageDialog(ConferenceSchedulingPanel.this, "CFP data imported successfully.");
+        }
+    }
 }