diff options
Diffstat (limited to 'android/telephony/ims/internal/stub/ImsRegistrationImplBase.java')
| -rw-r--r-- | android/telephony/ims/internal/stub/ImsRegistrationImplBase.java | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/android/telephony/ims/internal/stub/ImsRegistrationImplBase.java b/android/telephony/ims/internal/stub/ImsRegistrationImplBase.java new file mode 100644 index 00000000..558b009a --- /dev/null +++ b/android/telephony/ims/internal/stub/ImsRegistrationImplBase.java @@ -0,0 +1,276 @@ +/* + * 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.internal.stub; + +import android.annotation.IntDef; +import android.os.RemoteCallbackList; +import android.os.RemoteException; +import android.telephony.ims.internal.aidl.IImsRegistration; +import android.telephony.ims.internal.aidl.IImsRegistrationCallback; +import android.util.Log; + +import com.android.ims.ImsReasonInfo; + +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; + +/** + * Controls IMS registration for this ImsService and notifies the framework when the IMS + * registration for this ImsService has changed status. + * @hide + */ + +public class ImsRegistrationImplBase { + + private static final String LOG_TAG = "ImsRegistrationImplBase"; + + // Defines the underlying radio technology type that we have registered for IMS over. + @IntDef(flag = true, + value = { + REGISTRATION_TECH_NONE, + REGISTRATION_TECH_LTE, + REGISTRATION_TECH_IWLAN + }) + @Retention(RetentionPolicy.SOURCE) + public @interface ImsRegistrationTech {} + /** + * No registration technology specified, used when we are not registered. + */ + public static final int REGISTRATION_TECH_NONE = -1; + /** + * IMS is registered to IMS via LTE. + */ + public static final int REGISTRATION_TECH_LTE = 0; + /** + * IMS is registered to IMS via IWLAN. + */ + public static final int REGISTRATION_TECH_IWLAN = 1; + + // Registration states, used to notify new ImsRegistrationImplBase#Callbacks of the current + // state. + private static final int REGISTRATION_STATE_NOT_REGISTERED = 0; + private static final int REGISTRATION_STATE_REGISTERING = 1; + private static final int REGISTRATION_STATE_REGISTERED = 2; + + + /** + * Callback class for receiving Registration callback events. + */ + public static class Callback extends IImsRegistrationCallback.Stub { + + /** + * Notifies the framework when the IMS Provider is connected to the IMS network. + * + * @param imsRadioTech the radio access technology. Valid values are defined in + * {@link ImsRegistrationTech}. + */ + @Override + public void onRegistered(@ImsRegistrationTech int imsRadioTech) { + } + + /** + * Notifies the framework when the IMS Provider is trying to connect the IMS network. + * + * @param imsRadioTech the radio access technology. Valid values are defined in + * {@link ImsRegistrationTech}. + */ + @Override + public void onRegistering(@ImsRegistrationTech int imsRadioTech) { + } + + /** + * Notifies the framework when the IMS Provider is disconnected from the IMS network. + * + * @param info the {@link ImsReasonInfo} associated with why registration was disconnected. + */ + @Override + public void onDeregistered(ImsReasonInfo info) { + } + + /** + * A failure has occurred when trying to handover registration to another technology type, + * defined in {@link ImsRegistrationTech} + * + * @param imsRadioTech The {@link ImsRegistrationTech} type that has failed + * @param info A {@link ImsReasonInfo} that identifies the reason for failure. + */ + @Override + public void onTechnologyChangeFailed(@ImsRegistrationTech int imsRadioTech, + ImsReasonInfo info) { + } + } + + private final IImsRegistration mBinder = new IImsRegistration.Stub() { + + @Override + public @ImsRegistrationTech int getRegistrationTechnology() throws RemoteException { + return getConnectionType(); + } + + @Override + public void addRegistrationCallback(IImsRegistrationCallback c) throws RemoteException { + ImsRegistrationImplBase.this.addRegistrationCallback(c); + } + + @Override + public void removeRegistrationCallback(IImsRegistrationCallback c) throws RemoteException { + ImsRegistrationImplBase.this.removeRegistrationCallback(c); + } + }; + + private final RemoteCallbackList<IImsRegistrationCallback> mCallbacks + = new RemoteCallbackList<>(); + private final Object mLock = new Object(); + // Locked on mLock + private @ImsRegistrationTech + int mConnectionType = REGISTRATION_TECH_NONE; + // Locked on mLock + private int mRegistrationState = REGISTRATION_STATE_NOT_REGISTERED; + // Locked on mLock + private ImsReasonInfo mLastDisconnectCause; + + public final IImsRegistration getBinder() { + return mBinder; + } + + private void addRegistrationCallback(IImsRegistrationCallback c) throws RemoteException { + mCallbacks.register(c); + updateNewCallbackWithState(c); + } + + private void removeRegistrationCallback(IImsRegistrationCallback c) { + mCallbacks.unregister(c); + } + + /** + * Notify the framework that the device is connected to the IMS network. + * + * @param imsRadioTech the radio access technology. Valid values are defined in + * {@link ImsRegistrationTech}. + */ + public final void onRegistered(@ImsRegistrationTech int imsRadioTech) { + updateToState(imsRadioTech, REGISTRATION_STATE_REGISTERED); + mCallbacks.broadcast((c) -> { + try { + c.onRegistered(imsRadioTech); + } catch (RemoteException e) { + Log.w(LOG_TAG, e + " " + "onRegistrationConnected() - Skipping " + + "callback."); + } + }); + } + + /** + * Notify the framework that the device is trying to connect the IMS network. + * + * @param imsRadioTech the radio access technology. Valid values are defined in + * {@link ImsRegistrationTech}. + */ + public final void onRegistering(@ImsRegistrationTech int imsRadioTech) { + updateToState(imsRadioTech, REGISTRATION_STATE_REGISTERING); + mCallbacks.broadcast((c) -> { + try { + c.onRegistering(imsRadioTech); + } catch (RemoteException e) { + Log.w(LOG_TAG, e + " " + "onRegistrationProcessing() - Skipping " + + "callback."); + } + }); + } + + /** + * Notify the framework that the device is disconnected from the IMS network. + * + * @param info the {@link ImsReasonInfo} associated with why registration was disconnected. + */ + public final void onDeregistered(ImsReasonInfo info) { + updateToDisconnectedState(info); + mCallbacks.broadcast((c) -> { + try { + c.onDeregistered(info); + } catch (RemoteException e) { + Log.w(LOG_TAG, e + " " + "onRegistrationDisconnected() - Skipping " + + "callback."); + } + }); + } + + public final void onTechnologyChangeFailed(@ImsRegistrationTech int imsRadioTech, + ImsReasonInfo info) { + mCallbacks.broadcast((c) -> { + try { + c.onTechnologyChangeFailed(imsRadioTech, info); + } catch (RemoteException e) { + Log.w(LOG_TAG, e + " " + "onRegistrationChangeFailed() - Skipping " + + "callback."); + } + }); + } + + private void updateToState(@ImsRegistrationTech int connType, int newState) { + synchronized (mLock) { + mConnectionType = connType; + mRegistrationState = newState; + mLastDisconnectCause = null; + } + } + + private void updateToDisconnectedState(ImsReasonInfo info) { + synchronized (mLock) { + updateToState(REGISTRATION_TECH_NONE, REGISTRATION_STATE_NOT_REGISTERED); + if (info != null) { + mLastDisconnectCause = info; + } else { + Log.w(LOG_TAG, "updateToDisconnectedState: no ImsReasonInfo provided."); + mLastDisconnectCause = new ImsReasonInfo(); + } + } + } + + private @ImsRegistrationTech int getConnectionType() { + synchronized (mLock) { + return mConnectionType; + } + } + + /** + * @param c the newly registered callback that will be updated with the current registration + * state. + */ + private void updateNewCallbackWithState(IImsRegistrationCallback c) throws RemoteException { + int state; + ImsReasonInfo disconnectInfo; + synchronized (mLock) { + state = mRegistrationState; + disconnectInfo = mLastDisconnectCause; + } + switch (state) { + case REGISTRATION_STATE_NOT_REGISTERED: { + c.onDeregistered(disconnectInfo); + break; + } + case REGISTRATION_STATE_REGISTERING: { + c.onRegistering(getConnectionType()); + break; + } + case REGISTRATION_STATE_REGISTERED: { + c.onRegistered(getConnectionType()); + break; + } + } + } +} |