Implemented FeedMedia Download

build.xml

@@ -1,13 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project name="Podfetcher" default="help">
 
-
+	<!--
 	<taskdef resource="checkstyletask.properties"
 		classpath="/home/daniel/bin/checkstyle/checkstyle-5.5-all.jar"/>
 
 	<checkstyle config="/home/daniel/bin/checkstyle/sun_checks.xml">
 		<fileset dir="src" includes="**/*.java"/>
 	</checkstyle>
+	-->
 
     <!-- The local.properties file is created and updated by the 'android' tool.
          It contains the path to the SDK. It should *NOT* be checked into

src/de/podfetcher/activity/ItemviewActivity.java

@@ -1,6 +1,7 @@
 package de.podfetcher.activity;
 
 import java.io.File;
+import java.util.concurrent.Callable;
 import android.net.Uri;
 import android.graphics.BitmapFactory;
 import com.actionbarsherlock.app.SherlockActivity;
@@ -10,16 +11,20 @@ import android.os.Bundle;
 import de.podfetcher.feed.*;
 import android.util.Log;
 import android.content.Intent;
+import android.content.Context;
 import android.widget.Button;
 import android.widget.TextView;
 import android.widget.ImageView;
 import de.podfetcher.R;
+import de.podfetcher.service.DownloadObserver;
+import de.podfetcher.storage.DownloadRequester;
 
 /** Displays a single FeedItem and provides various actions */
 public class ItemviewActivity extends SherlockActivity {
 	private static final String TAG = "ItemviewActivity";
 
 	private FeedManager manager;
+	private DownloadRequester requester;
 	private FeedItem item;
 
 	// Widgets
@@ -36,6 +41,16 @@ public class ItemviewActivity extends SherlockActivity {
 		manager = FeedManager.getInstance();
 		extractFeeditem();
 		populateUI();
+		getDownloadStatus();
+
+		butDownload.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				requester = DownloadRequester.getInstance();
+				requester.downloadMedia(v.getContext(), item.getMedia());
+				getDownloadStatus();
+			}
+		});
 	}
 
 	/** Extracts FeedItem object the activity is supposed to display */
@@ -68,6 +83,41 @@ public class ItemviewActivity extends SherlockActivity {
 			imgvImage.setImageBitmap(item.getFeed().getImage().getImageBitmap());
 		}
 	}
+
+	private void getDownloadStatus() {
+		if(item.getMedia().getFile_url() == null) {
+			butPlay.setEnabled(false);
+			butDownload.setEnabled(true);
+			butRemove.setEnabled(false);
+		} else {
+			final DownloadObserver observer = new DownloadObserver(
+					item.getMedia().getDownloadId(), this);
+
+			final Callable client = new Callable() {
+				public Object call() {
+					runOnUiThread(new Runnable() {
+						public void run() {
+							if(observer.getDone() && 
+								// Download successful
+								observer.getResult() == R.string.download_successful) {
+								butDownload.setEnabled(false);
+								butPlay.setEnabled(true);
+								butRemove.setEnabled(true);
+							} else {
+								// Download running
+								butDownload.setEnabled(false);
+								butPlay.setEnabled(false);
+								butRemove.setEnabled(false);
+							} 
+						}	
+					});	
+					return null;
+				}
+			};	
+			observer.setClient(client);
+			observer.start();
+		}
+	}
 }
 
 

src/de/podfetcher/feed/FeedManager.java

@@ -136,6 +136,12 @@ public class FeedManager {
 	    return adapter.setImage(image);
 	}
 
+	/** Updates information of an existing FeedMedia object. */
+	public long setFeedMedia(Context context, FeedMedia media) {
+	    PodDBAdapter adapter = new PodDBAdapter(context);
+		return adapter.setMedia(media);	
+	}
+
 	/** Get a Feed by its id */
 	public Feed getFeed(long id) {
 		for(Feed f : feeds) {

src/de/podfetcher/service/DownloadService.java

@@ -102,6 +102,11 @@ public class DownloadService extends Service {
 				FeedImage image = requester.getFeedImage(downloadId);
 				if(image != null) {
 					handleCompletedImageDownload(context, image);
+				} else {
+					FeedMedia media = requester.getFeedMedia(downloadId);
+					if (media != null) {
+						handleCompletedFeedMediaDownload(context, media);
+					}
 				}
 			}
 			queryDownloads();
@@ -131,6 +136,13 @@ public class DownloadService extends Service {
 		manager.setFeedImage(this, image);
 	}
 
+	/** Is called whenever a FeedMedia is downloaded. */
+	private void handleCompletedFeedMediaDownload(Context context, FeedMedia media) {
+		Log.d(TAG, "Handling completed FeedMedia Download");
+		requester.removeFeedMedia(media);
+		manager.setFeedMedia(this, media);
+	}
+
 	class IncomingHandler extends Handler {
 		@Override
 		public void handleMessage(Message msg) {

src/de/podfetcher/storage/DownloadRequester.java

@@ -87,7 +87,7 @@ public class DownloadRequester {
 
 	public void downloadMedia(Context context, FeedMedia feedmedia) {
 		download(context, media, feedmedia,
-				new File(context.getExternalFilesDir(MEDIA_DOWNLOADPATH), "media-" + media.size()),
+				new File(getMediafilePath(context, feedmedia), getMediafilename(feedmedia)),
 				true);
 	}
 
@@ -183,6 +183,14 @@ public class DownloadRequester {
 		return "image-" + NumberGenerator.generateLong(image.getDownload_url());
 	}
 
+	public String getMediafilePath(Context context, FeedMedia media) {
+		return context.getExternalFilesDir(MEDIA_DOWNLOADPATH).toString() + "/";
+	}
+
+	public String getMediafilename(FeedMedia media) {
+		return "media-" + NumberGenerator.generateLong(media.getDownload_url());	
+	}
+
 
 	/* ------------ Methods for communicating with the DownloadService ------------- */
 	private Messenger mService = null;