From ebf3d3451e1a04e4f8b0c762fe6c0297884983e5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kjetil=20=C3=98rbekk?= <kjetil.orbekk@gmail.com>
Date: Tue, 14 Feb 2012 13:22:54 +0100
Subject: same-android: Implement network joining.

---
 same-android/res/layout/controller.xml             |  2 +-
 .../com/orbekk/same/SameControllerActivity.java    | 68 +++++++++++++++++-----
 .../src/main/java/com/orbekk/same/SameService.java |  9 +++
 .../java/com/orbekk/same/DiscoveryService.java     |  4 ++
 4 files changed, 69 insertions(+), 14 deletions(-)

diff --git a/same-android/res/layout/controller.xml b/same-android/res/layout/controller.xml
index ad4c286..79974ee 100644
--- a/same-android/res/layout/controller.xml
+++ b/same-android/res/layout/controller.xml
@@ -39,7 +39,7 @@
     <Button
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:onClick="joinNetwork"
+        android:onClick="joinNetworkUrl"
         android:text="Join" />
 
     <Button
diff --git a/same-android/src/main/java/com/orbekk/same/SameControllerActivity.java b/same-android/src/main/java/com/orbekk/same/SameControllerActivity.java
index 31d3e18..c9829a7 100644
--- a/same-android/src/main/java/com/orbekk/same/SameControllerActivity.java
+++ b/same-android/src/main/java/com/orbekk/same/SameControllerActivity.java
@@ -1,5 +1,6 @@
 package com.orbekk.same;
 
+import java.util.List;
 import java.util.ArrayList;
 
 import org.slf4j.Logger;
@@ -21,14 +22,18 @@ import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
 import android.view.View;
+import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
 import android.widget.TextView;
+import android.widget.Toast;
 
 public class SameControllerActivity extends Activity { 
     private Logger logger = LoggerFactory.getLogger(getClass());
     private Messenger sameService = null;
+    private List<String> networkNames = new ArrayList<String>();
+    private List<String> networkUrls = new ArrayList<String>();
     
     private ServiceConnection sameConnection = new ServiceConnection() {
         @Override
@@ -41,20 +46,37 @@ public class SameControllerActivity extends Activity {
             sameService = null;
         }
     };
-    
+
     private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
         @Override
-        public void onReceive(Context context, Intent intent) {
+        public synchronized void onReceive(Context context, Intent intent) {
             if (SameService.AVAILABLE_NETWORKS_UPDATE.equals(intent.getAction())) {
-                ArrayList<String> networkList = intent.getStringArrayListExtra(
-                    SameService.AVAILABLE_NETWORKS);
-                ListView list = (ListView)findViewById(R.id.network_list);
-                list.setAdapter(new ArrayAdapter<String>(
-                        SameControllerActivity.this,
-                        R.layout.list_text_item, networkList));
+                networkNames = intent.getStringArrayListExtra(
+                        SameService.AVAILABLE_NETWORKS);
+                networkUrls = intent.getStringArrayListExtra(
+                        SameService.NETWORK_URLS);
+                updateNetworkList();
             }
         }
     };
+
+    private AdapterView.OnItemClickListener networkListClickListener =
+            new AdapterView.OnItemClickListener() {
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            Toast.makeText(SameControllerActivity.this,
+                    "Join network " + networkNames.get(position),
+                    Toast.LENGTH_SHORT).show();      
+        }
+    };
+    
+    private void updateNetworkList() {
+        ListView list = (ListView)findViewById(R.id.network_list);
+        list.setAdapter(new ArrayAdapter<String>(
+                SameControllerActivity.this,
+                R.layout.list_text_item, networkNames));        
+    }
+    
     
     public void createNetwork(View unused) {
         Message message = Message.obtain(null, SameService.CREATE_NETWORK);
@@ -66,14 +88,31 @@ public class SameControllerActivity extends Activity {
         }
     }
     
-    public void joinNetwork(View unused) {
-        logger.info("Joining network");
+    public void joinNetworkUrl(View unused) {
+        String masterUrl = "";
         Intent intent = new Intent(this, SameService.class);
         intent.setAction("join");
-        // InetAddress address = new Broadcaster(this).getBroadcastAddress();
         EditText t = (EditText)findViewById(R.id.master_service_url);
-        intent.putExtra("masterUrl", t.getText().toString());
-        startService(intent);
+        masterUrl = t.getText().toString();
+        if (!masterUrl.startsWith("http://")) {
+            masterUrl = "http://" + masterUrl;
+        }
+        if (!masterUrl.endsWith("/MasterService.json")) {
+            masterUrl += "/MasterService.json";
+        }
+        joinNetwork(masterUrl);
+    }
+    
+    private void joinNetwork(String masterUrl) {
+        logger.info("joinNetwork({})", masterUrl);
+        Message message = Message.obtain(null, SameService.JOIN_NETWORK,
+            masterUrl);
+        try {
+            sameService.send(message);
+        } catch (RemoteException e) {
+            logger.error("Failed to send message", e);
+            throw new RuntimeException(e);
+        }
     }
     
     private void showIpAddress() {
@@ -105,6 +144,9 @@ public class SameControllerActivity extends Activity {
 
         setContentView(R.layout.controller);        
         showIpAddress();
+        
+        ListView networkList = (ListView)findViewById(R.id.network_list);
+        networkList.setOnItemClickListener(networkListClickListener);
     }
     
     @Override public void onResume() {
diff --git a/same-android/src/main/java/com/orbekk/same/SameService.java b/same-android/src/main/java/com/orbekk/same/SameService.java
index 3237e61..a960065 100644
--- a/same-android/src/main/java/com/orbekk/same/SameService.java
+++ b/same-android/src/main/java/com/orbekk/same/SameService.java
@@ -24,11 +24,14 @@ public class SameService extends Service {
     public final static int DISPLAY_MESSAGE = 1;
     public final static int SEARCH_NETWORKS = 2;
     public final static int CREATE_NETWORK = 3;
+    public final static int JOIN_NETWORK = 4;    
     
     public final static String AVAILABLE_NETWORKS_UPDATE =
             "com.orbekk.same.SameService.action.AVAILABLE_NETWORKS_UPDATE";
     public final static String AVAILABLE_NETWORKS =
             "com.orbekk.same.SameService.action.AVAILABLE_NETWORKS";
+    public final static String NETWORK_URLS =
+            "com.orbekk.same.SameService.action.NETWORK_URLS";
 
     final static int SERVICE_PORT = 15068;
     final static int DISCOVERY_PORT = 15066;
@@ -50,6 +53,8 @@ public class SameService extends Service {
             Intent intent = new Intent(AVAILABLE_NETWORKS_UPDATE);
             intent.putStringArrayListExtra(AVAILABLE_NETWORKS,
                     networkNames);
+            intent.putStringArrayListExtra(NETWORK_URLS,
+                    networkUrls);
             sendBroadcast(intent);
         }
     };
@@ -70,6 +75,10 @@ public class SameService extends Service {
                     logger.info("CREATE_NETWORK");
                     create();
                     break;
+                case JOIN_NETWORK:
+                    logger.info("JOIN_NETWORK");
+                    String masterUrl = (String)message.obj;
+                    sameController.getClient().joinNetwork(masterUrl);
                 default:
                     super.handleMessage(message);
             }
diff --git a/same/src/main/java/com/orbekk/same/DiscoveryService.java b/same/src/main/java/com/orbekk/same/DiscoveryService.java
index 0415316..d9af9bb 100644
--- a/same/src/main/java/com/orbekk/same/DiscoveryService.java
+++ b/same/src/main/java/com/orbekk/same/DiscoveryService.java
@@ -22,6 +22,10 @@ public class DiscoveryService extends Thread {
         logger.info("DiscoveryService starting.");
         while (!Thread.interrupted()) {
             DatagramPacket packet = broadcastListener.listen();
+            if (packet == null) {
+                // An error or interrupt occurred.
+                continue;
+            }
             String content = new String(packet.getData(), 0, packet.getLength());
             String[] words = content.split(" ");
             
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