Changeset 756 for java/AEInstaller2-Updater/src/net/oni2/aeinstaller/updater

Timestamp:

Mar 30, 2013, 3:04:44 PM (12 years ago)

Author:

alloc

Message:

AEI-Updater:

• Check for AEI-file locked before updating

File:

• java/AEInstaller2-Updater/src/net/oni2/aeinstaller/updater/gui/MainWin.java (modified) (3 diffs)

java/AEInstaller2-Updater/src/net/oni2/aeinstaller/updater/gui/MainWin.java

@@ -14 +14 @@
 import javax.swing.JFrame;
 import javax.swing.JLabel;
+import javax.swing.JOptionPane;
 import javax.swing.JProgressBar;
 import javax.swing.SwingWorker;
@@ -111 +112 @@
                 @Override
                 protected Status doInBackground() throws Exception {
-                        Thread.sleep(2000);
+                        step.setText("Waiting for AEI to close");
+                        int i = 0;
+                        while (!checkWritable() && i < 20) {
+                                i++;
+                                Thread.sleep(500);
+                        }
+
+                        if (i >= 20) {
+                                JOptionPane
+                                                .showMessageDialog(
+                                                                null,
+                                                                "Could not update because the main file of AEI was locked.\nPerhaps you are still running an instance of AEI?",
+                                                                "Could not update!", JOptionPane.ERROR_MESSAGE);
+                                System.exit(1);
+                                return null;
+                        }
+
                         step.setText("Updating");
-                        
+
                         SVN svn = new SVN();
                         try {
@@ -132 +149 @@
                         }
                         return null;
+                }
+
+                private boolean checkWritable() {
+                        File aei = new File(new File(Paths.getInstallerPath(), "bin"),
+                                        "AEInstaller2.jar");
+                        File temp = new File(new File(Paths.getInstallerPath(), "bin"),
+                                        "temp.jar");
+                        if (!aei.exists())
+                                return true;
+                        if (aei.renameTo(temp)) {
+                                temp.renameTo(aei);
+                                return true;
+                        }
+                        return false;
                 }