Incompatible hardware detetction added to OpenCV Manager(Feature #2941)

android/service/engine/src/org/opencv/engine/BinderConnector.java

@@ -4,23 +4,43 @@ import android.os.IBinder;
 
 public class BinderConnector
 {
-    public BinderConnector(MarketConnector Market)
+    public BinderConnector(MarketConnector Market) {
-    {
+        mMarket = Market;
-        Init(Market);
-    }
-    public native IBinder Connect();
-    public boolean Disconnect()
-    {
-        Final();
-        return true;
     }
 
-    static
+    public boolean Init() {
+        boolean result = false;
+        if (mIsReady)
+            result = Init(mMarket);
+
+        return result;
+    }
+
+    public native IBinder Connect();
+
+    public boolean Disconnect()
     {
-        System.loadLibrary("OpenCVEngine");
+        if (mIsReady)
-        System.loadLibrary("OpenCVEngine_jni");
+            Final();
+
+        return mIsReady;
     }
 
     private native boolean Init(MarketConnector Market);
-    public native void Final();
+    private native void Final();
+    private static boolean mIsReady = false;
+    private MarketConnector mMarket;
+
+    static {
+        try {
+            System.loadLibrary("OpenCVEngine");
+            System.loadLibrary("OpenCVEngine_jni");
+            mIsReady = true;
+        }
+        catch(UnsatisfiedLinkError e) {
+            mIsReady = false;
+            e.printStackTrace();
+        }
+    }
+
 }

android/service/engine/src/org/opencv/engine/HardwareDetector.java

@@ -47,9 +47,17 @@ public class HardwareDetector
 
     public static native int DetectKnownPlatforms();
 
-    static
+    public static boolean mIsReady = false;
-    {
+
-        System.loadLibrary("OpenCVEngine");
+    static {
-        System.loadLibrary("OpenCVEngine_jni");
+        try {
+            System.loadLibrary("OpenCVEngine");
+            System.loadLibrary("OpenCVEngine_jni");
+            mIsReady = true;
+        }
+        catch(UnsatisfiedLinkError e) {
+            mIsReady = false;
+            e.printStackTrace();
+        }
     }
 }

android/service/engine/src/org/opencv/engine/OpenCVEngineService.java

@@ -3,31 +3,62 @@ package org.opencv.engine;
 import android.app.Service;
 import android.content.Intent;
 import android.os.IBinder;
+import android.os.RemoteException;
 import android.util.Log;
 
-
 public class OpenCVEngineService extends Service
 {
     private static final String TAG = "OpenCVEngine/Service";
-    private IBinder mEngineInterface;
+    private IBinder mEngineInterface = null;
     private MarketConnector mMarket;
     private BinderConnector mNativeBinder;
-    public void onCreate()
+
-    {
+    public void onCreate() {
         Log.i(TAG, "Service starting");
         super.onCreate();
         Log.i(TAG, "Engine binder component creating");
         mMarket = new MarketConnector(getBaseContext());
         mNativeBinder = new BinderConnector(mMarket);
-        mEngineInterface = mNativeBinder.Connect();
+        if (mNativeBinder.Init()) {
-        Log.i(TAG, "Service started successfully");
+            mEngineInterface = mNativeBinder.Connect();
+            Log.i(TAG, "Service started successfully");
+        } else {
+            Log.e(TAG, "Cannot initialize native part of OpenCV Manager!");
+            Log.e(TAG, "Using stub instead");
+
+            mEngineInterface = new OpenCVEngineInterface.Stub() {
+
+                @Override
+                public boolean installVersion(String version) throws RemoteException {
+                    // TODO Auto-generated method stub
+                    return false;
+                }
+
+                @Override
+                public String getLibraryList(String version) throws RemoteException {
+                    // TODO Auto-generated method stub
+                    return null;
+                }
+
+                @Override
+                public String getLibPathByVersion(String version) throws RemoteException {
+                    // TODO Auto-generated method stub
+                    return null;
+                }
+
+                @Override
+                public int getEngineVersion() throws RemoteException {
+                    return -1;
+                }
+            };
+        }
     }
 
-    public IBinder onBind(Intent intent)
+    public IBinder onBind(Intent intent) {
-    {
         Log.i(TAG, "Service onBind called for intent " + intent.toString());
         return mEngineInterface;
     }
+
     public boolean onUnbind(Intent intent)
     {
         Log.i(TAG, "Service onUnbind called for intent " + intent.toString());

android/service/engine/src/org/opencv/engine/manager/ManagerActivity.java

@@ -42,6 +42,26 @@ public class ManagerActivity extends Activity
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
+        if (!HardwareDetector.mIsReady) {
+            Log.e(TAG, "Cannot initialize native part of OpenCV Manager!");
+
+            AlertDialog dialog = new AlertDialog.Builder(this).create();
+
+            dialog.setTitle("OpenCV Manager Error");
+            dialog.setMessage("OpenCV Manager is incompatible with this device. Please replace it with an appropriate package.");
+            dialog.setCancelable(false);
+            dialog.setButton("OK", new DialogInterface.OnClickListener() {
+
+                public void onClick(DialogInterface dialog, int which) {
+                    finish();
+                }
+            });
+
+            dialog.show();
+            return;
+        }
+
         setContentView(R.layout.main);
 
         TextView OsVersionView = (TextView)findViewById(R.id.OsVersionValue);
@@ -186,6 +206,20 @@ public class ManagerActivity extends Activity
             }
         });
 
+        mPackageChangeReciever = new BroadcastReceiver() {
+
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                Log.d("OpenCVManager/Reciever", "Bradcast message " + intent.getAction() + " reciever");
+                Log.d("OpenCVManager/Reciever", "Filling package list on broadcast message");
+                if (!bindService(new Intent("org.opencv.engine.BIND"), new OpenCVEngineServiceConnection(), Context.BIND_AUTO_CREATE))
+                {
+                    TextView EngineVersionView = (TextView)findViewById(R.id.EngineVersionValue);
+                    EngineVersionView.setText("not avaliable");
+                }
+            }
+        };
+
         IntentFilter filter = new IntentFilter();
         filter.addAction(Intent.ACTION_PACKAGE_ADDED);
         filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
@@ -199,17 +233,23 @@ public class ManagerActivity extends Activity
     @Override
     protected void onDestroy() {
         super.onDestroy();
-        unregisterReceiver(mPackageChangeReciever);
+        if (mPackageChangeReciever != null)
+            unregisterReceiver(mPackageChangeReciever);
     }
 
     @Override
     protected void onResume() {
         super.onResume();
-        Log.d(TAG, "Filling package list on resume");
+        if (HardwareDetector.mIsReady) {
-        if (!bindService(new Intent("org.opencv.engine.BIND"), new OpenCVEngineServiceConnection(), Context.BIND_AUTO_CREATE))
+            Log.d(TAG, "Filling package list on resume");
-        {
+            OpenCVEngineServiceConnection connection = new OpenCVEngineServiceConnection();
-            TextView EngineVersionView = (TextView)findViewById(R.id.EngineVersionValue);
+            if (!bindService(new Intent("org.opencv.engine.BIND"), connection, Context.BIND_AUTO_CREATE)) {
-            EngineVersionView.setText("not avaliable");
+                Log.e(TAG, "Cannot bind to OpenCV Manager service!");
+                TextView EngineVersionView = (TextView)findViewById(R.id.EngineVersionValue);
+                if (EngineVersionView != null)
+                    EngineVersionView.setText("not avaliable");
+                unbindService(connection);
+            }
         }
     }
 
@@ -225,19 +265,7 @@ public class ManagerActivity extends Activity
     protected int ManagerApiLevel = 0;
     protected String ManagerVersion;
 
-    protected BroadcastReceiver mPackageChangeReciever = new BroadcastReceiver() {
+    protected BroadcastReceiver mPackageChangeReciever = null;
-
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            Log.d("OpenCVManager/Reciever", "Bradcast message " + intent.getAction() + " reciever");
-            Log.d("OpenCVManager/Reciever", "Filling package list on broadcast message");
-            if (!bindService(new Intent("org.opencv.engine.BIND"), new OpenCVEngineServiceConnection(), Context.BIND_AUTO_CREATE))
-            {
-                TextView EngineVersionView = (TextView)findViewById(R.id.EngineVersionValue);
-                EngineVersionView.setText("not avaliable");
-            }
-        }
-    };
 
     protected class OpenCVEngineServiceConnection implements ServiceConnection
     {
@@ -246,6 +274,12 @@ public class ManagerActivity extends Activity
 
         public void onServiceConnected(ComponentName name, IBinder service) {
             OpenCVEngineInterface EngineService = OpenCVEngineInterface.Stub.asInterface(service);
+            if (EngineService == null) {
+                Log.e(TAG, "Cannot connect to OpenCV Manager Service!");
+                unbindService(this);
+                return;
+            }
+
             try {
                 ManagerApiLevel = EngineService.getEngineVersion();
             } catch (RemoteException e) {