1 /* 2 * Copyright (C) 2016 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.net.wifi.aware; 18 19 import android.annotation.NonNull; 20 import android.util.Log; 21 22 /** 23 * A class representing a Aware subscribe session. Created when 24 * {@link WifiAwareSession#subscribe(SubscribeConfig, 25 * DiscoverySessionCallback, android.os.Handler)} 26 * is called and a discovery session is created and returned in 27 * {@link DiscoverySessionCallback#onSubscribeStarted(SubscribeDiscoverySession)}. 28 * See baseline functionality of all discovery sessions in {@link DiscoverySession}. 29 * This object allows updating an existing/running subscribe discovery session using 30 * {@link #updateSubscribe(SubscribeConfig)}. 31 */ 32 public class SubscribeDiscoverySession extends DiscoverySession { 33 private static final String TAG = "SubscribeDiscSession"; 34 35 /** 36 * {@hide} 37 */ SubscribeDiscoverySession(WifiAwareManager manager, int clientId, int sessionId)38 public SubscribeDiscoverySession(WifiAwareManager manager, int clientId, 39 int sessionId) { 40 super(manager, clientId, sessionId); 41 } 42 43 /** 44 * Re-configure the currently active subscribe session. The 45 * {@link DiscoverySessionCallback} is not replaced - the same listener used 46 * at creation is still used. The results of the configuration are returned using 47 * {@link DiscoverySessionCallback}: 48 * <ul> 49 * <li>{@link DiscoverySessionCallback#onSessionConfigUpdated()}: configuration 50 * update succeeded. 51 * <li>{@link DiscoverySessionCallback#onSessionConfigFailed()}: configuration 52 * update failed. The subscribe discovery session is still running using its previous 53 * configuration (i.e. update failure does not terminate the session). 54 * </ul> 55 * 56 * @param subscribeConfig The new discovery subscribe session configuration 57 * ({@link SubscribeConfig}). 58 */ updateSubscribe(@onNull SubscribeConfig subscribeConfig)59 public void updateSubscribe(@NonNull SubscribeConfig subscribeConfig) { 60 if (mTerminated) { 61 Log.w(TAG, "updateSubscribe: called on terminated session"); 62 return; 63 } else { 64 WifiAwareManager mgr = mMgr.get(); 65 if (mgr == null) { 66 Log.w(TAG, "updateSubscribe: called post GC on WifiAwareManager"); 67 return; 68 } 69 70 mgr.updateSubscribe(mClientId, mSessionId, subscribeConfig); 71 } 72 } 73 } 74