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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of 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,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.test.soundtrigger;
     18 
     19 import android.annotation.Nullable;
     20 import android.content.Context;
     21 import android.hardware.soundtrigger.SoundTrigger;
     22 import android.hardware.soundtrigger.SoundTrigger.GenericSoundModel;
     23 import android.media.soundtrigger.SoundTriggerDetector;
     24 import android.media.soundtrigger.SoundTriggerManager;
     25 import android.os.RemoteException;
     26 import android.os.ServiceManager;
     27 import android.os.ParcelUuid;
     28 import android.util.Log;
     29 
     30 import com.android.internal.app.ISoundTriggerService;
     31 
     32 import java.lang.RuntimeException;
     33 import java.util.UUID;
     34 
     35 /**
     36  * Utility class for the managing sound trigger sound models.
     37  */
     38 public class SoundTriggerUtil {
     39     private static final String TAG = "TestSoundTriggerUtil:Hotsound";
     40 
     41     private final ISoundTriggerService mSoundTriggerService;
     42     private final SoundTriggerManager mSoundTriggerManager;
     43     private final Context mContext;
     44 
     45     public SoundTriggerUtil(Context context) {
     46         mSoundTriggerService = ISoundTriggerService.Stub.asInterface(
     47                 ServiceManager.getService(Context.SOUND_TRIGGER_SERVICE));
     48         mSoundTriggerManager = (SoundTriggerManager) context.getSystemService(
     49                 Context.SOUND_TRIGGER_SERVICE);
     50         mContext = context;
     51     }
     52 
     53     /**
     54      * Adds/Updates a sound model.
     55      * The sound model must contain a valid UUID.
     56      *
     57      * @param soundModel The sound model to add/update.
     58      */
     59     public boolean addOrUpdateSoundModel(GenericSoundModel soundModel) {
     60         try {
     61             if (soundModel == null) {
     62                 throw new RuntimeException("Bad sound model");
     63             }
     64             mSoundTriggerService.updateSoundModel(soundModel);
     65         } catch (RemoteException e) {
     66             Log.e(TAG, "RemoteException in updateSoundModel", e);
     67         }
     68         return true;
     69     }
     70 
     71     public void addOrUpdateSoundModel(SoundTriggerManager.Model soundModel) {
     72         mSoundTriggerManager.updateModel(soundModel);
     73     }
     74 
     75     /**
     76      * Gets the sound model for the given keyphrase, null if none exists.
     77      * If a sound model for a given keyphrase exists, and it needs to be updated,
     78      * it should be obtained using this method, updated and then passed in to
     79      * {@link #addOrUpdateSoundModel(GenericSoundModel)} without changing the IDs.
     80      *
     81      * @param modelId The model ID to look-up the sound model for.
     82      * @return The sound model if one was found, null otherwise.
     83      */
     84     @Nullable
     85     public GenericSoundModel getSoundModel(UUID modelId) {
     86         GenericSoundModel model = null;
     87         try {
     88             model = mSoundTriggerService.getSoundModel(new ParcelUuid(modelId));
     89         } catch (RemoteException e) {
     90             Log.e(TAG, "RemoteException in updateKeyphraseSoundModel");
     91         }
     92 
     93         if (model == null) {
     94             Log.w(TAG, "No models present for the gien keyphrase ID");
     95             return null;
     96         } else {
     97             return model;
     98         }
     99     }
    100 
    101     /**
    102      * Deletes the sound model for the given keyphrase id.
    103      *
    104      * @param modelId The model ID to look-up the sound model for.
    105      * @return {@code true} if the call succeeds, {@code false} otherwise.
    106      */
    107     @Nullable
    108     public boolean deleteSoundModel(UUID modelId) {
    109         try {
    110             mSoundTriggerService.deleteSoundModel(new ParcelUuid(modelId));
    111         } catch (RemoteException e) {
    112             Log.e(TAG, "RemoteException in updateSoundModel");
    113         }
    114         return true;
    115     }
    116 
    117     public void deleteSoundModelUsingManager(UUID modelId) {
    118             mSoundTriggerManager.deleteModel(modelId);
    119     }
    120 
    121     public SoundTriggerDetector createSoundTriggerDetector(UUID modelId,
    122             SoundTriggerDetector.Callback callback) {
    123         return mSoundTriggerManager.createSoundTriggerDetector(modelId, callback, null);
    124     }
    125 
    126 }
    127