1 /*
2  * Copyright (c) 2014, The Linux Foundation. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *    * Redistributions of source code must retain the above copyright
8         notice, this list of conditions and the following disclaimer.
9  *    * Redistributions in binary form must reproduce the above
10  *      copyright notice, this list of conditions and the following
11  *      disclaimer in the documentation and/or other materials provided
12  *      with the distribution.
13  *    * Neither the name of The Linux Foundation nor the names of its
14  *      contributors may be used to endorse or promote products derived
15  *      from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 package com.android.ims;
31 
32 import android.compat.annotation.UnsupportedAppUsage;
33 import android.os.RemoteException;
34 import android.telephony.ims.ImsReasonInfo;
35 
36 import com.android.ims.internal.IImsEcbm;
37 import com.android.ims.internal.IImsEcbmListener;
38 import com.android.telephony.Rlog;
39 
40 /**
41  * Provides APIs for the supplementary service settings using IMS (Ut interface).
42  * It is created from 3GPP TS 24.623 (XCAP(XML Configuration Access Protocol)
43  * over the Ut interface for manipulating supplementary services).
44  *
45  * @hide
46  */
47 public class ImsEcbm {
48     private static final String TAG = "ImsEcbm";
49     private static final boolean DBG = true;
50 
51     private final IImsEcbm miEcbm;
52 
ImsEcbm(IImsEcbm iEcbm)53     public ImsEcbm(IImsEcbm iEcbm) {
54         if (DBG) Rlog.d(TAG, "ImsEcbm created");
55         miEcbm = iEcbm;
56     }
57 
setEcbmStateListener(ImsEcbmStateListener ecbmListener)58     public void setEcbmStateListener(ImsEcbmStateListener ecbmListener) throws ImsException {
59         try {
60             miEcbm.setListener(new ImsEcbmListenerProxy(ecbmListener));
61         } catch (RemoteException e) {
62             throw new ImsException("setEcbmStateListener()", e,
63                     ImsReasonInfo.CODE_LOCAL_IMS_SERVICE_DOWN);
64         }
65     }
66 
67     @UnsupportedAppUsage
exitEmergencyCallbackMode()68     public void exitEmergencyCallbackMode() throws ImsException {
69         try {
70             miEcbm.exitEmergencyCallbackMode();
71         } catch (RemoteException e) {
72             throw new ImsException("exitEmergencyCallbackMode()", e,
73                     ImsReasonInfo.CODE_LOCAL_IMS_SERVICE_DOWN);
74         }
75     }
76 
isBinderAlive()77     public boolean isBinderAlive() {
78         return miEcbm.asBinder().isBinderAlive();
79     }
80 
81     /**
82      * Adapter class for {@link IImsEcbmListener}.
83      */
84     private class ImsEcbmListenerProxy extends IImsEcbmListener.Stub {
85         private ImsEcbmStateListener mListener;
86 
ImsEcbmListenerProxy(ImsEcbmStateListener listener)87         public ImsEcbmListenerProxy(ImsEcbmStateListener listener) {
88             mListener = listener;
89         }
90 
91         @Override
enteredECBM()92         public void enteredECBM() {
93             if (DBG) Rlog.d(TAG, "enteredECBM ::");
94 
95             if (mListener != null) {
96                 mListener.onECBMEntered();
97             }
98         }
99 
100         @Override
exitedECBM()101         public void exitedECBM() {
102             if (DBG) Rlog.d(TAG, "exitedECBM ::");
103 
104             if (mListener != null) {
105                 mListener.onECBMExited();
106             }
107         }
108     }
109 }
110