/*
* Copyright (C) 2017 The Android Open Source 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 android.telephony.ims;
import android.app.PendingIntent;
import android.os.IBinder;
import android.os.Message;
import android.os.RemoteException;
import android.telephony.ims.feature.IRcsFeature;
import android.telephony.ims.feature.ImsFeature;
import android.util.Log;
import com.android.ims.ImsCallProfile;
import com.android.ims.internal.IImsCallSession;
import com.android.ims.internal.IImsCallSessionListener;
import com.android.ims.internal.IImsConfig;
import com.android.ims.internal.IImsEcbm;
import com.android.ims.internal.IImsMultiEndpoint;
import com.android.ims.internal.IImsRegistrationListener;
import com.android.ims.internal.IImsServiceController;
import com.android.ims.internal.IImsServiceFeatureListener;
import com.android.ims.internal.IImsUt;
/**
* A container of the IImsServiceController binder, which implements all of the ImsFeatures that
* the platform currently supports: MMTel and RCS.
* @hide
*/
public class ImsServiceProxy extends ImsServiceProxyCompat implements IRcsFeature {
protected String LOG_TAG = "ImsServiceProxy";
private final int mSupportedFeature;
// Start by assuming the proxy is available for usage.
private boolean mIsAvailable = true;
// ImsFeature Status from the ImsService. Cached.
private Integer mFeatureStatusCached = null;
private ImsServiceProxy.INotifyStatusChanged mStatusCallback;
private final Object mLock = new Object();
public interface INotifyStatusChanged {
void notifyStatusChanged();
}
private final IImsServiceFeatureListener mListenerBinder =
new IImsServiceFeatureListener.Stub() {
@Override
public void imsFeatureCreated(int slotId, int feature) throws RemoteException {
// The feature has been re-enabled. This may happen when the service crashes.
synchronized (mLock) {
if (!mIsAvailable && mSlotId == slotId && feature == mSupportedFeature) {
Log.i(LOG_TAG, "Feature enabled on slotId: " + slotId + " for feature: " +
feature);
mIsAvailable = true;
}
}
}
@Override
public void imsFeatureRemoved(int slotId, int feature) throws RemoteException {
synchronized (mLock) {
if (mIsAvailable && mSlotId == slotId && feature == mSupportedFeature) {
Log.i(LOG_TAG, "Feature disabled on slotId: " + slotId + " for feature: " +
feature);
mIsAvailable = false;
}
}
}
@Override
public void imsStatusChanged(int slotId, int feature, int status) throws RemoteException {
synchronized (mLock) {
Log.i(LOG_TAG, "imsStatusChanged: slot: " + slotId + " feature: " + feature +
" status: " + status);
if (mSlotId == slotId && feature == mSupportedFeature) {
mFeatureStatusCached = status;
}
}
if (mStatusCallback != null) {
mStatusCallback.notifyStatusChanged();
}
}
};
public ImsServiceProxy(int slotId, IBinder binder, int featureType) {
super(slotId, binder);
mSupportedFeature = featureType;
}
public ImsServiceProxy(int slotId, int featureType) {
super(slotId, null /*IBinder*/);
mSupportedFeature = featureType;
}
public IImsServiceFeatureListener getListener() {
return mListenerBinder;
}
public void setBinder(IBinder binder) {
mBinder = binder;
}
@Override
public int startSession(PendingIntent incomingCallIntent, IImsRegistrationListener listener)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).startSession(mSlotId, mSupportedFeature,
incomingCallIntent, listener);
}
}
@Override
public void endSession(int sessionId) throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
getServiceInterface(mBinder).endSession(mSlotId, mSupportedFeature, sessionId);
}
}
@Override
public boolean isConnected(int callServiceType, int callType)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).isConnected(mSlotId, mSupportedFeature,
callServiceType, callType);
}
}
@Override
public boolean isOpened() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).isOpened(mSlotId, mSupportedFeature);
}
}
@Override
public void addRegistrationListener(IImsRegistrationListener listener)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
getServiceInterface(mBinder).addRegistrationListener(mSlotId, mSupportedFeature,
listener);
}
}
@Override
public void removeRegistrationListener(IImsRegistrationListener listener)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
getServiceInterface(mBinder).removeRegistrationListener(mSlotId, mSupportedFeature,
listener);
}
}
@Override
public ImsCallProfile createCallProfile(int sessionId, int callServiceType, int callType)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).createCallProfile(mSlotId, mSupportedFeature,
sessionId, callServiceType, callType);
}
}
@Override
public IImsCallSession createCallSession(int sessionId, ImsCallProfile profile,
IImsCallSessionListener listener) throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).createCallSession(mSlotId, mSupportedFeature,
sessionId, profile, listener);
}
}
@Override
public IImsCallSession getPendingCallSession(int sessionId, String callId)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).getPendingCallSession(mSlotId, mSupportedFeature,
sessionId, callId);
}
}
@Override
public IImsUt getUtInterface() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).getUtInterface(mSlotId, mSupportedFeature);
}
}
@Override
public IImsConfig getConfigInterface() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).getConfigInterface(mSlotId, mSupportedFeature);
}
}
@Override
public void turnOnIms() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
getServiceInterface(mBinder).turnOnIms(mSlotId, mSupportedFeature);
}
}
@Override
public void turnOffIms() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
getServiceInterface(mBinder).turnOffIms(mSlotId, mSupportedFeature);
}
}
@Override
public IImsEcbm getEcbmInterface() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).getEcbmInterface(mSlotId, mSupportedFeature);
}
}
@Override
public void setUiTTYMode(int uiTtyMode, Message onComplete)
throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
getServiceInterface(mBinder).setUiTTYMode(mSlotId, mSupportedFeature, uiTtyMode,
onComplete);
}
}
@Override
public IImsMultiEndpoint getMultiEndpointInterface() throws RemoteException {
synchronized (mLock) {
checkServiceIsReady();
return getServiceInterface(mBinder).getMultiEndpointInterface(mSlotId,
mSupportedFeature);
}
}
@Override
public int getFeatureStatus() {
synchronized (mLock) {
if (isBinderAlive() && mFeatureStatusCached != null) {
Log.i(LOG_TAG, "getFeatureStatus - returning cached: " + mFeatureStatusCached);
return mFeatureStatusCached;
}
}
// Don't synchronize on Binder call.
Integer status = retrieveFeatureStatus();
synchronized (mLock) {
if (status == null) {
return ImsFeature.STATE_NOT_AVAILABLE;
}
// Cache only non-null value for feature status.
mFeatureStatusCached = status;
}
Log.i(LOG_TAG, "getFeatureStatus - returning " + status);
return status;
}
/**
* Internal method used to retrieve the feature status from the corresponding ImsService.
*/
private Integer retrieveFeatureStatus() {
if (mBinder != null) {
try {
return getServiceInterface(mBinder).getFeatureStatus(mSlotId, mSupportedFeature);
} catch (RemoteException e) {
// Status check failed, don't update cache
}
}
return null;
}
/**
* @param c Callback that will fire when the feature status has changed.
*/
public void setStatusCallback(INotifyStatusChanged c) {
mStatusCallback = c;
}
/**
* @return Returns true if the ImsService is ready to take commands, false otherwise. If this
* method returns false, it doesn't mean that the Binder connection is not available (use
* {@link #isBinderReady()} to check that), but that the ImsService is not accepting commands
* at this time.
*
* For example, for DSDS devices, only one slot can be {@link ImsFeature#STATE_READY} to take
* commands at a time, so the other slot must stay at {@link ImsFeature#STATE_NOT_AVAILABLE}.
*/
public boolean isBinderReady() {
return isBinderAlive() && getFeatureStatus() == ImsFeature.STATE_READY;
}
@Override
public boolean isBinderAlive() {
return mIsAvailable && mBinder != null && mBinder.isBinderAlive();
}
protected void checkServiceIsReady() throws RemoteException {
if (!isBinderReady()) {
throw new RemoteException("ImsServiceProxy is not ready to accept commands.");
}
}
private IImsServiceController getServiceInterface(IBinder b) {
return IImsServiceController.Stub.asInterface(b);
}
}