Start working on an updater thing for the jpackage builds

java/net/i2p/router/WindowsUpdatePostProcessor.java

@@ -0,0 +1,75 @@
+package net.i2p.router;
+
+import java.io.*;
+import java.util.*;
+
+import static net.i2p.update.UpdateType.*;
+import net.i2p.update.UpdateType;
+import net.i2p.util.SystemVersion;
+
+import java.lang.ProcessBuilder;
+import java.lang.Process;
+import java.lang.InterruptedException;
+
+public class WindowsUpdatePostProcessor {
+    protected static Router i2pRouter = null;
+    Process updateProcess = null;
+    public void updateDownloadedandVerified(UpdateType type, int fileType, String version, File file) throws IOException {
+        if (fileType == 6) {
+            if (runUpdate(file)) {
+                if (shutdownGracefullyAndRerun()) {
+                }
+            } else {
+            }
+        }
+    }
+    private boolean runUpdate(File file){
+            ProcessBuilder pb = new ProcessBuilder("cmd", "/c", file.getAbsolutePath());
+            try {
+                updateProcess = pb.start();
+            } catch (IOException ex) {
+                // At this point a failure is harmless, but it's also not at all important to
+                // restart the router. Return false.
+                return false;
+            }
+            try {
+                updateProcess.waitFor();
+            } catch (InterruptedException ex) {
+                // if the NSIS installer process got interrupted here, it's possible that the
+                // install was left in a broken state. I think we should direct the uses to
+                // re-run the installer if this happens. TODO: java dialog boxes. That should be
+                // easy.
+                return false;
+            }
+            return true;
+    }
+    private boolean shutdownGracefullyAndRerun() {
+        i2pRouter.shutdownGracefully();
+        ProcessBuilder pb = new ProcessBuilder("cmd", "/c", selectProgramFile().getAbsolutePath());
+        while (i2pRouter.gracefulShutdownInProgress()){
+        }
+        if (i2pRouter.isFinalShutdownInProgress()){
+            try {
+                Process restartProcess = pb.start();
+            } catch (IOException ex) {
+                //
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
+    protected static File selectProgramFile() {
+        if (SystemVersion.isWindows()) {
+            File jrehome = new File(System.getProperty("java.home"));
+            File programs = jrehome.getParentFile();
+            return programs.getAbsoluteFile();
+        } else {
+            File jrehome = new File(System.getProperty("java.home"));
+            File programs = new File(jrehome.getParentFile().getParentFile(), "i2p");
+            return programs.getAbsoluteFile();
+        }
+    }
+
+}