1 /*
2  * Copyright (C) 2010 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 android.speech;
18 
19 import android.content.ComponentName;
20 import android.content.Intent;
21 import android.util.CloseGuard;
22 
23 import androidx.annotation.NonNull;
24 import androidx.annotation.Nullable;
25 
26 import java.lang.ref.Reference;
27 import java.util.concurrent.Executor;
28 
29 /**
30  * @hide
31  */
32 class SpeechRecognizerProxy extends SpeechRecognizer {
33 
34     private final CloseGuard mCloseGuard = new CloseGuard();
35 
36     private final SpeechRecognizer mDelegate;
37 
SpeechRecognizerProxy(final SpeechRecognizer delegate)38     SpeechRecognizerProxy(final SpeechRecognizer delegate) {
39         mDelegate = delegate;
40         mCloseGuard.open("SpeechRecognizer#destroy()");
41     }
42 
43     @Override
setRecognitionListener(RecognitionListener listener)44     public void setRecognitionListener(RecognitionListener listener) {
45         mDelegate.setRecognitionListener(listener);
46     }
47 
48     @Override
startListening(Intent recognizerIntent)49     public void startListening(Intent recognizerIntent) {
50         mDelegate.startListening(recognizerIntent);
51     }
52 
53     @Override
stopListening()54     public void stopListening() {
55         mDelegate.stopListening();
56     }
57 
58     @Override
cancel()59     public void cancel() {
60         mDelegate.cancel();
61     }
62 
63     @Override
destroy()64     public void destroy() {
65         try {
66             mCloseGuard.close();
67             mDelegate.destroy();
68         } finally {
69             Reference.reachabilityFence(this);
70         }
71     }
72 
73     @Override
checkRecognitionSupport( @onNull Intent recognizerIntent, @NonNull Executor executor, @NonNull RecognitionSupportCallback supportListener)74     public void checkRecognitionSupport(
75             @NonNull Intent recognizerIntent,
76             @NonNull Executor executor,
77             @NonNull RecognitionSupportCallback supportListener) {
78         mDelegate.checkRecognitionSupport(recognizerIntent, executor, supportListener);
79     }
80 
81     @Override
triggerModelDownload(@onNull Intent recognizerIntent)82     public void triggerModelDownload(@NonNull Intent recognizerIntent) {
83         mDelegate.triggerModelDownload(recognizerIntent);
84     }
85 
86     @Override
triggerModelDownload( @onNull Intent recognizerIntent, @NonNull Executor executor, @NonNull ModelDownloadListener listener)87     public void triggerModelDownload(
88             @NonNull Intent recognizerIntent,
89             @NonNull Executor executor,
90             @NonNull ModelDownloadListener listener) {
91         mDelegate.triggerModelDownload(recognizerIntent, executor, listener);
92     }
93 
94     @Override
setTemporaryOnDeviceRecognizer(@ullable ComponentName componentName)95     public void setTemporaryOnDeviceRecognizer(@Nullable ComponentName componentName) {
96         mDelegate.setTemporaryOnDeviceRecognizer(componentName);
97     }
98 
99     @Override
finalize()100     protected void finalize() throws Throwable {
101         try {
102             mCloseGuard.warnIfOpen();
103             destroy();
104         } finally {
105             super.finalize();
106         }
107     }
108 }
109