retry implemented

core/src/main/groovy/com/muwire/core/download/DownloadManager.groovy

@@ -28,10 +28,14 @@ public class DownloadManager {
     
     
     public void onUIDownloadEvent(UIDownloadEvent e) {
-        def downloader = new Downloader(e.target, e.result.size,
+        def downloader = new Downloader(this, e.target, e.result.size,
             e.result.infohash, e.result.pieceSize, connector, e.result.sender.destination,
             incompletes)
         executor.execute({downloader.download()} as Runnable)
         eventBus.publish(new DownloadStartedEvent(downloader : downloader))
     }
+    
+    void resume(Downloader downloader) {
+        executor.execute({downloader.download() as Runnable})
+    }
 }

core/src/main/groovy/com/muwire/core/download/Downloader.groovy

@@ -15,6 +15,7 @@ import net.i2p.data.Destination
 public class Downloader {
     public enum DownloadState { CONNECTING, DOWNLOADING, FAILED, CANCELLED, FINISHED }
 
+    private final DownloadManager downloadManager    
     private final File file
     private final Pieces pieces
     private final long length
@@ -31,8 +32,10 @@ public class Downloader {
     private volatile boolean cancelled
     private volatile Thread downloadThread
     
-    public Downloader(File file, long length, InfoHash infoHash, int pieceSizePow2, I2PConnector connector, Destination destination,
+    public Downloader(DownloadManager downloadManager, File file, long length, InfoHash infoHash, 
+        int pieceSizePow2, I2PConnector connector, Destination destination,
         File incompletes) {
+        this.downloadManager = downloadManager
         this.file = file
         this.infoHash = infoHash
         this.length = length
@@ -112,4 +115,8 @@ public class Downloader {
         cancelled = true
         downloadThread?.interrupt()
     }
+    
+    public void resume() {
+        downloadManager.resume(this)
+    }
 }

gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy

@@ -90,6 +90,12 @@ class MainFrameController {
         downloader.cancel()
     }
     
+    @ControllerAction
+    void resume() {
+        def downloader = selectedDownload()
+        downloader.resume()
+    }
+    
     void mvcGroupInit(Map<String, String> args) {
         application.addPropertyChangeListener("core", {e-> 
             core = e.getNewValue()

gui/griffon-app/views/com/muwire/gui/MainFrameView.groovy

@@ -99,7 +99,7 @@ class MainFrameView {
                                 }
                                 panel (constraints : BorderLayout.SOUTH) {
                                     button(text: "Cancel", enabled : bind {model.cancelButtonEnabled }, cancelAction )
-                                    button("Retry", enabled : bind {model.retryButtonEnabled})
+                                    button(text: "Retry", enabled : bind {model.retryButtonEnabled}, resumeAction)
                                 }
                             }
                         }