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/**
* Copyright (C) 2016 The CyanogenMod Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.cyanogenmod.platform.internal;
import org.cyanogenmod.platform.internal.common.BrokeredServiceConnection;
import android.annotation.NonNull;
import android.annotation.SdkConstant;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.util.Slog;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import cyanogenmod.app.CMContextConstants;
import cyanogenmod.media.AudioSessionInfo;
import cyanogenmod.media.ICMAudioService;
public class CMAudioServiceBroker extends BrokerableCMSystemService<ICMAudioService> {
private static final String TAG = "CMAudioServiceBroker";
private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
private final Context mContext;
private static final ComponentName TARGET_IMPLEMENTATION_COMPONENT =
new ComponentName("org.cyanogenmod.cmaudio.service",
"org.cyanogenmod.cmaudio.service.CMAudioService");
public CMAudioServiceBroker(Context context) {
super(context);
mContext = context;
}
@Override
public void onBootPhase(int phase) {
super.onBootPhase(phase);
if (phase == PHASE_THIRD_PARTY_APPS_CAN_START) {
publishBinderService(CMContextConstants.CM_AUDIO_SERVICE, new BinderService());
}
}
@Override
public void onStart() {
if (DEBUG) Slog.d(TAG, "service started");
}
@Override
protected ICMAudioService getIBinderAsIInterface(@NonNull IBinder service) {
return ICMAudioService.Stub.asInterface(service);
}
@Override
protected ICMAudioService getDefaultImplementation() {
return mServiceStubForFailure;
}
@Override
protected ComponentName getServiceComponent() {
return TARGET_IMPLEMENTATION_COMPONENT;
}
private void checkPermission() {
mContext.enforceCallingOrSelfPermission(
cyanogenmod.platform.Manifest.permission.OBSERVE_AUDIO_SESSIONS, null);
}
@Override
public String getFeatureDeclaration() {
return CMContextConstants.Features.AUDIO;
}
private final ICMAudioService mServiceStubForFailure = new ICMAudioService.Stub() {
@Override
public List<AudioSessionInfo> listAudioSessions(int streamType) throws RemoteException {
checkPermission();
return Collections.emptyList();
}
};
private final class BinderService extends ICMAudioService.Stub {
@Override
public List<AudioSessionInfo> listAudioSessions(int streamType) throws RemoteException {
checkPermission();
return getBrokeredService().listAudioSessions(streamType);
}
@Override
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG);
pw.println();
pw.println("CMAudio Service State:");
try {
List<AudioSessionInfo> sessions = listAudioSessions(-1);
if (sessions.size() > 0) {
pw.println(" Audio sessions:");
for (AudioSessionInfo info : sessions) {
pw.println(" " + info.toString());
}
} else {
pw.println(" No active audio sessions");
}
} catch (RemoteException e) {
// nothing
}
}
}
}
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