1 /*
2  * Copyright (C) 2017 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.telephony.ims.stub;
18 
19 import android.annotation.SystemApi;
20 import android.annotation.TestApi;
21 import android.os.RemoteException;
22 import android.util.Log;
23 
24 import com.android.ims.internal.IImsEcbm;
25 import com.android.ims.internal.IImsEcbmListener;
26 
27 /**
28  * Base implementation of ImsEcbm, which implements stub versions of the methods
29  * in the IImsEcbm AIDL. Override the methods that your implementation of ImsEcbm supports.
30  *
31  * DO NOT remove or change the existing APIs, only add new ones to this Base implementation or you
32  * will break other implementations of ImsEcbm maintained by other ImsServices.
33  *
34  * @hide
35  */
36 @SystemApi
37 @TestApi
38 public class ImsEcbmImplBase {
39     private static final String TAG = "ImsEcbmImplBase";
40 
41     private IImsEcbmListener mListener;
42     private IImsEcbm mImsEcbm = new IImsEcbm.Stub() {
43         @Override
44         public void setListener(IImsEcbmListener listener) {
45             mListener = listener;
46         }
47 
48         @Override
49         public void exitEmergencyCallbackMode() {
50             ImsEcbmImplBase.this.exitEmergencyCallbackMode();
51         }
52     };
53 
54     /** @hide */
getImsEcbm()55     public IImsEcbm getImsEcbm() {
56         return mImsEcbm;
57     }
58 
59     /**
60      * This method should be implemented by the IMS provider. Framework will trigger this method to
61      * request to come out of ECBM mode
62      */
exitEmergencyCallbackMode()63     public void exitEmergencyCallbackMode() {
64         Log.d(TAG, "exitEmergencyCallbackMode() not implemented");
65     }
66 
67     /**
68      * Notifies the framework when the device enters Emergency Callback Mode.
69      *
70      * @throws RuntimeException if the connection to the framework is not available.
71      */
enteredEcbm()72     public final void enteredEcbm() {
73         Log.d(TAG, "Entered ECBM.");
74         if (mListener != null) {
75             try {
76                 mListener.enteredECBM();
77             } catch (RemoteException e) {
78                 throw new RuntimeException(e);
79             }
80         }
81     }
82 
83     /**
84      * Notifies the framework when the device exits Emergency Callback Mode.
85      *
86      * @throws RuntimeException if the connection to the framework is not available.
87      */
exitedEcbm()88     public final void exitedEcbm() {
89         Log.d(TAG, "Exited ECBM.");
90         if (mListener != null) {
91             try {
92                 mListener.exitedECBM();
93             } catch (RemoteException e) {
94                 throw new RuntimeException(e);
95             }
96         }
97     }
98 }
99