added a simple method on dist maker that checks if the current version is up to date; also added a listener mechanism to the update process so callers can know when a check was done for the updates; also reversed the order of older versions; also resized some message dialogs

src/distMaker/DistMakerEngine.java

@@ -17,12 +17,17 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.util.Collections;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 
 import javax.swing.JFrame;
 import javax.swing.SwingUtilities;
 
+import com.google.common.base.Joiner;
+import com.google.common.collect.Lists;
+
 import distMaker.gui.PickReleasePanel;
 import distMaker.node.Node;
 import distMaker.platform.AppleUtils;
@@ -48,9 +53,9 @@ public class DistMakerEngine
 
 		parentFrame = aParentFrame;
 		msgPanel = new MessagePanel(parentFrame);
-		msgPanel.setSize(450, 250);
+		msgPanel.setSize(700, 400);
 		promptPanel = new PromptPanel(parentFrame);
-		promptPanel.setSize(400, 200);
+		promptPanel.setSize(500, 300);
 
 		initialize();
 	}
@@ -58,7 +63,7 @@ public class DistMakerEngine
 	/**
 	 * Method that will notify the user that updates are being checked for
 	 */
-	public void checkForUpdates()
+	public void checkForUpdates(UpdateCheckListener listener)
 	{
 		FullTaskPanel taskPanel;
 		File installPath;
@@ -94,9 +99,34 @@ public class DistMakerEngine
 		taskPanel.setVisible(true);
 
 		// Launch the actual checking of updates in a separate worker thread
-		ThreadUtil.launchRunnable(new FunctionRunnable(this, "checkForUpdatesWorker", taskPanel), "thread-checkForUpdates");
+		ThreadUtil.launchRunnable(new FunctionRunnable(this, "checkForUpdatesWorker", taskPanel, listener), "thread-checkForUpdates");
 	}
 
+	/**
+	 * returns 
+	 * @return
+	 */
+	public UpdateStatus isUpToDate()
+	{
+	   LoggingTask task = new LoggingTask();
+	   String appName = currRelease.getName();
+	   List<Release> unsortedReleaseList = DistUtils.getAvailableReleases(task, updateSiteUrl, appName, refCredential);
+
+	   if (unsortedReleaseList == null) {
+	      // The update check failed, so return a status of false with a message about the problem
+	      String msg = Joiner.on("; ").join(task.getMessages());
+	      return new UpdateStatus(msg);
+	   }
+      // Sort the items, and isolate the newest item
+      LinkedList<Release> fullList = Lists.newLinkedList(unsortedReleaseList);
+      Collections.sort(fullList);
+      Release newestRelease = fullList.removeLast();
+
+      // The check succeeded, so return wether or not the app is up to date.
+      return new UpdateStatus(newestRelease.equals(currRelease));
+	}
+	
+	
 	/**
 	 * Sets in the credentials used to access the update site. If either argument is null, then the credentials will be
 	 * cleared out.
@@ -203,7 +233,7 @@ public class DistMakerEngine
 
 		// Form the PickReleasePanel
 		pickVersionPanel = new PickReleasePanel(parentFrame, currRelease);
-		pickVersionPanel.setSize(320, 350);
+		pickVersionPanel.setSize(550, 500); // 320, 350);
 	}
 
 	/**
@@ -212,7 +242,7 @@ public class DistMakerEngine
 	 * This method will be called via reflection.
 	 */
 	@SuppressWarnings("unused")
-	private void checkForUpdatesWorker(FullTaskPanel aTask)
+	private void checkForUpdatesWorker(FullTaskPanel aTask, UpdateCheckListener listener)
 	{
 		List<Release> fullList;
 		Release chosenItem;
@@ -237,6 +267,9 @@ public class DistMakerEngine
 			return;
 		}
 		
+		// a successful test has been done, so notify the listener
+		listener.checkForNewVersionsPerformed();
+		
 		// Hide the taskPanel
 		aTask.setVisible(false);
 

src/distMaker/LoggingTask.java

@@ -0,0 +1,38 @@
+package distMaker;
+
+import java.util.List;
+
+import com.google.common.collect.Lists;
+
+import glum.task.SilentTask;
+
+public class LoggingTask extends SilentTask
+{
+   private final List<String> messages = Lists.newArrayList();
+
+   @Override
+   public void infoAppend(String aMsg)
+   {
+      messages.add(aMsg);
+      super.infoAppend(aMsg);
+   }
+
+   @Override
+   public void infoAppendln(String aMsg)
+   {
+      messages.add(aMsg);
+      super.infoAppendln(aMsg);
+   }
+
+   @Override
+   public void infoUpdate(String aMsg)
+   {
+      messages.add(aMsg);
+      super.infoUpdate(aMsg);
+   }
+
+   List<String> getMessages()
+   {
+      return messages;
+   }
+}

src/distMaker/UpdateCheckListener.java

@@ -0,0 +1,12 @@
+package distMaker;
+
+
+/**
+ * lets any interested party know that a check for for updates has been done
+ *
+ * @author vandejd1
+ */
+public interface UpdateCheckListener
+{
+   void checkForNewVersionsPerformed();
+}

src/distMaker/UpdateStatus.java

@@ -0,0 +1,37 @@
+package distMaker;
+
+public class UpdateStatus
+{
+   private final boolean isUpToDate;
+   private final boolean errorDeterminingState;
+   private final String errorMessage;
+
+   public UpdateStatus(boolean isUpToDate)
+   {
+      this.isUpToDate = isUpToDate;
+      this.errorDeterminingState = false;;
+      this.errorMessage = "";
+   }
+
+   public UpdateStatus(String errorMessage)
+   {
+      this.isUpToDate = false;
+      this.errorDeterminingState = true;
+      this.errorMessage = errorMessage;
+   }
+
+   public boolean isUpToDate()
+   {
+      return isUpToDate;
+   }
+
+   public boolean isErrorDeterminingState()
+   {
+      return errorDeterminingState;
+   }
+
+   public String getErrorMessage()
+   {
+      return errorMessage;
+   }
+}

src/distMaker/gui/PickReleasePanel.java

@@ -90,7 +90,6 @@ public class PickReleasePanel extends GlassPanel implements ActionListener, ZioR
 	 */
 	public void setConfiguration(List<Release> itemList)
 	{
-		LinkedList<Release> fullList;
 		DateUnit dateUnit;
 		// String currBuildStr;
 		String lastBuildStr;
@@ -98,9 +97,11 @@ public class PickReleasePanel extends GlassPanel implements ActionListener, ZioR
 		String appName, infoMsg;
 
 		// Sort the items, and isolate the newest item
-		fullList = Lists.newLinkedList(itemList);
-		Collections.sort(fullList);
-		newestItem = fullList.removeLast();
+      LinkedList<Release> linkedList;
+		linkedList = Lists.newLinkedList(itemList);
+		Collections.sort(linkedList);
+		Collections.reverse(linkedList);  // reverse the list to show most recent versions on top
+		newestItem = linkedList.removeFirst();
 
 		// Retrieve vars of interest
 		appName = installedItem.getName();
@@ -114,7 +115,7 @@ public class PickReleasePanel extends GlassPanel implements ActionListener, ZioR
 		newestRB.setText("Latest: " + lastVerStr + " (" + lastBuildStr + ")");
 
 		// Update the list of available items
-		myItemProcessor.setItems(fullList);
+		myItemProcessor.setItems(linkedList);
 
 		// Update the infoTA
 		if (newestItem.equals(installedItem) == true) {
@@ -124,8 +125,8 @@ public class PickReleasePanel extends GlassPanel implements ActionListener, ZioR
          infoMsg += "You may switch to an older release by choosing one of the versions below.";
 		} else {
          titleL.setText(appName + " needs to be updated.");
-			infoMsg = "You are running version is " + currVerStr + ". ";
-         infoMsg += "You may update to the latest release or even to an "
+			infoMsg = "You are running version " + currVerStr + ". ";
+         infoMsg += "You may update to the latest release. You may also switch to an "
                + "older relase by choosing another version below. ";
 		}
 		infoMsg += "\n";