299 lines
11 KiB
Java
299 lines
11 KiB
Java
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.bluetooth;
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import android.annotation.NonNull;
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import android.os.Binder;
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import android.os.RemoteException;
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import android.util.Log;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.Executor;
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/** @hide */
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public class BluetoothLeBroadcastAssistantCallback
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extends IBluetoothLeBroadcastAssistantCallback.Stub {
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private static final String TAG = BluetoothLeBroadcastAssistantCallback.class.getSimpleName();
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private boolean mIsRegistered = false;
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private final Map<BluetoothLeBroadcastAssistant.Callback, Executor> mCallbackMap =
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new HashMap<>();
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IBluetoothLeBroadcastAssistant mAdapter;
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public BluetoothLeBroadcastAssistantCallback(IBluetoothLeBroadcastAssistant adapter) {
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mAdapter = adapter;
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}
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/**
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* @hide
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* @param executor an {@link Executor} to execute given callback
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* @param callback user implementation of the {@link BluetoothLeBroadcastAssistant#Callback}
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* @throws IllegalArgumentException if the same <var>callback<var> is already registered.
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*/
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public void register(
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@NonNull Executor executor, @NonNull BluetoothLeBroadcastAssistant.Callback callback) {
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synchronized (this) {
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if (mCallbackMap.containsKey(callback)) {
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throw new IllegalArgumentException("callback is already registered");
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}
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mCallbackMap.put(callback, executor);
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if (!mIsRegistered) {
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try {
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mAdapter.registerCallback(this);
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mIsRegistered = true;
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} catch (RemoteException e) {
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Log.w(TAG, "Failed to register broadcast assistant callback");
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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}
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}
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}
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}
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/**
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* @hide
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* @param callback user implementation of the {@link BluetoothLeBroadcastAssistant#Callback}
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* @throws IllegalArgumentException if <var>callback</var> was not registered before
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*/
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public void unregister(@NonNull BluetoothLeBroadcastAssistant.Callback callback) {
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synchronized (this) {
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if (!mCallbackMap.containsKey(callback)) {
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throw new IllegalArgumentException("callback was not registered before");
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}
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mCallbackMap.remove(callback);
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if (mCallbackMap.isEmpty() && mIsRegistered) {
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try {
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mAdapter.unregisterCallback(this);
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mIsRegistered = false;
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} catch (RemoteException e) {
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Log.w(TAG, "Failed to unregister callback with service");
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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}
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}
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}
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}
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/**
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* Check if at least one callback is registered from this App
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*
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* @return true if at least one callback is registered
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* @hide
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*/
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public boolean isAtLeastOneCallbackRegistered() {
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synchronized (this) {
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return !mCallbackMap.isEmpty();
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}
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}
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@Override
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public void onSearchStarted(int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSearchStarted(reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSearchStartFailed(int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSearchStartFailed(reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSearchStopped(int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSearchStopped(reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSearchStopFailed(int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSearchStopFailed(reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceFound(BluetoothLeBroadcastMetadata source) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceFound(source));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceAdded(BluetoothDevice sink, int sourceId, int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceAdded(sink, sourceId, reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceAddFailed(
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BluetoothDevice sink, BluetoothLeBroadcastMetadata source, int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceAddFailed(sink, source, reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceModified(BluetoothDevice sink, int sourceId, int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceModified(sink, sourceId, reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceModifyFailed(BluetoothDevice sink, int sourceId, int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceModifyFailed(sink, sourceId, reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceRemoved(BluetoothDevice sink, int sourceId, int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceRemoved(sink, sourceId, reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceRemoveFailed(BluetoothDevice sink, int sourceId, int reason) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceRemoveFailed(sink, sourceId, reason));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onReceiveStateChanged(
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BluetoothDevice sink, int sourceId, BluetoothLeBroadcastReceiveState state) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onReceiveStateChanged(sink, sourceId, state));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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@Override
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public void onSourceLost(int broadcastId) {
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synchronized (this) {
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for (BluetoothLeBroadcastAssistant.Callback cb : mCallbackMap.keySet()) {
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Executor executor = mCallbackMap.get(cb);
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final long identity = Binder.clearCallingIdentity();
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try {
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executor.execute(() -> cb.onSourceLost(broadcastId));
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} finally {
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Binder.restoreCallingIdentity(identity);
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}
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}
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}
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}
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}
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