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      1 /*
      2  * Copyright (C) 2016 Google Inc.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
      5  * use this file except in compliance with the License. You may obtain a copy of
      6  * the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
     13  * License for the specific language governing permissions and limitations under
     14  * the License.
     15  */
     16 
     17 package com.googlecode.android_scripting.facade;
     18 
     19 import android.app.Service;
     20 import android.content.Intent;
     21 
     22 import com.googlecode.android_scripting.Log;
     23 import com.googlecode.android_scripting.exception.Sl4aException;
     24 import com.googlecode.android_scripting.jsonrpc.RpcReceiver;
     25 import com.googlecode.android_scripting.jsonrpc.RpcReceiverManager;
     26 import com.googlecode.android_scripting.rpc.RpcDeprecated;
     27 import com.googlecode.android_scripting.rpc.RpcMinSdk;
     28 
     29 import java.lang.reflect.InvocationTargetException;
     30 import java.lang.reflect.Method;
     31 import java.util.Collection;
     32 
     33 public class FacadeManager extends RpcReceiverManager {
     34 
     35   private final Service mService;
     36   private final Intent mIntent;
     37   private int mSdkLevel;
     38 
     39   public FacadeManager(int sdkLevel, Service service, Intent intent,
     40       Collection<Class<? extends RpcReceiver>> classList) {
     41     super(classList);
     42     mSdkLevel = sdkLevel;
     43     mService = service;
     44     mIntent = intent;
     45   }
     46 
     47   public int getSdkLevel() {
     48     return mSdkLevel;
     49   }
     50 
     51   public Service getService() {
     52     return mService;
     53   }
     54 
     55   public Intent getIntent() {
     56     return mIntent;
     57   }
     58 
     59   @Override
     60   public Object invoke(Class<? extends RpcReceiver> clazz, Method method, Object[] args)
     61       throws Exception {
     62     try {
     63       if (method.isAnnotationPresent(RpcDeprecated.class)) {
     64         String replacedBy = method.getAnnotation(RpcDeprecated.class).value();
     65         String title = method.getName() + " is deprecated";
     66         Log.notify(mService, title, title, String.format("Please use %s instead.", replacedBy));
     67       } else if (method.isAnnotationPresent(RpcMinSdk.class)) {
     68         int requiredSdkLevel = method.getAnnotation(RpcMinSdk.class).value();
     69         if (mSdkLevel < requiredSdkLevel) {
     70           throw new Sl4aException(String.format("%s requires API level %d, current level is %d",
     71               method.getName(), requiredSdkLevel, mSdkLevel));
     72         }
     73       }
     74       return super.invoke(clazz, method, args);
     75     } catch (InvocationTargetException e) {
     76       if (e.getCause() instanceof SecurityException) {
     77         Log.notify(mService, "RPC invoke failed...", mService.getPackageName(), e.getCause()
     78             .getMessage());
     79       }
     80       throw e;
     81     }
     82   }
     83 
     84   public AndroidFacade.Resources getAndroidFacadeResources() {
     85     return new AndroidFacade.Resources() {
     86       @Override
     87       public int getLogo48() {
     88         // TODO(Alexey): As an alternative, ask application for resource ids.
     89         String packageName = mService.getApplication().getPackageName();
     90         return mService.getResources().getIdentifier("script_logo_48", "drawable", packageName);
     91       }
     92     };
     93   }
     94 }
     95