JAL-2087 workaround for IllegalStateException

diff --git a/test/jalview/ext/ensembl/EnsemblSpeciesDemo.java b/test/jalview/ext/ensembl/EnsemblSpeciesDemo.java
index 456783b..c4d41da 100644 (file)
--- a/test/jalview/ext/ensembl/EnsemblSpeciesDemo.java
+++ b/test/jalview/ext/ensembl/EnsemblSpeciesDemo.java
@@ -4,7 +4,8 @@ import jalview.ext.ensembl.EnsemblSpecies.EnsemblTaxon;
 
 import java.awt.Dimension;
 import java.awt.FlowLayout;
-import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
 import java.util.List;
 
 import javax.swing.DefaultComboBoxModel;
@@ -13,6 +14,7 @@ import javax.swing.JComponent;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
 import javax.swing.text.AbstractDocument;
@@ -20,6 +22,17 @@ import javax.swing.text.JTextComponent;
 
 public class EnsemblSpeciesDemo
 {
+  private boolean updating;
+
+  private Comparator<EnsemblTaxon> byDisplayName = new Comparator<EnsemblTaxon>()
+  {
+    @Override
+    public int compare(EnsemblTaxon o1, EnsemblTaxon o2)
+    {
+      return o1.displayName.compareTo(o2.displayName);
+    }
+  };
+
   /**
    * Main method may be run interactively to explore a dynamic drop-down list that
    * populates with matches of Ensembl taxon ids, names or aliases
@@ -35,7 +48,7 @@ public class EnsemblSpeciesDemo
       @Override
       public void run()
       {
-        createAndShowGUI();
+        new EnsemblSpeciesDemo().createAndShowGUI();
       }
     });
   }
@@ -44,7 +57,7 @@ public class EnsemblSpeciesDemo
    * Create the GUI and show it. For thread safety, this method should be invoked
    * from the event dispatch thread.
    */
-  private static void createAndShowGUI()
+  private void createAndShowGUI()
   {
     JFrame frame = new JFrame("Taxon drop-down demo");
     frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
@@ -94,21 +107,41 @@ public class EnsemblSpeciesDemo
    * @param combo
    * @param document 
    */
-  protected static void refreshComboList(JComboBox<String> combo, AbstractDocument document)
+  protected void refreshComboList(JComboBox<String> combo,
+          AbstractDocument document)
   {
+    if (updating)
+    {
+      return;
+    }
+
     String typed = (String) combo.getEditor().getItem();
-    if (typed.length() > 1)
+    if (typed.length() > 0)
     {
+      updating = true;
       List<EnsemblTaxon> matches = EnsemblSpecies.getSpecies(true)
               .getNameMatches(typed);
-      String[] items = new String[matches.size()];
-      int i = 0;
+      Collections.sort(matches, byDisplayName);
+      String[] items = new String[matches.size() + 1];
+      items[0] = typed;
+      int i = 1;
       for (EnsemblTaxon m : matches)
       {
         items[i++] = String.format("%s (%s)", m.displayName, m.ncbiId);
       }
-      Arrays.sort(items, String.CASE_INSENSITIVE_ORDER);
-      combo.setModel(new DefaultComboBoxModel<>(items));
+
+      /*
+       * can't update while handling a notification
+       */
+      SwingUtilities.invokeLater(new Runnable()
+      {
+        @Override
+        public void run()
+        {
+          combo.setModel(new DefaultComboBoxModel<>(items));
+          updating = false;
+        }
+      });
     }
   }
 }