/* * Copyright (C) 2014 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.telecom; import android.annotation.SdkConstant; import android.app.Service; import android.content.ComponentName; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Looper; import android.os.Message; import com.android.internal.os.SomeArgs; import com.android.internal.telecom.IConnectionService; import com.android.internal.telecom.IConnectionServiceAdapter; import com.android.internal.telecom.RemoteServiceCallback; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; import java.util.Map; import java.util.UUID; import java.util.concurrent.ConcurrentHashMap; /** * An abstract service that should be implemented by any apps which can make phone calls (VoIP or * otherwise) and want those calls to be integrated into the built-in phone app. * Once implemented, the {@code ConnectionService} needs two additional steps before it will be * integrated into the phone app: *

* 1. Registration in AndroidManifest.xml *
*

 * <service android:name="com.example.package.MyConnectionService"
 *    android:label="@string/some_label_for_my_connection_service"
 *    android:permission="android.permission.BIND_TELECOM_CONNECTION_SERVICE">
 *  <intent-filter>
 *   <action android:name="android.telecom.ConnectionService" />
 *  </intent-filter>
 * </service>
 * 
*

* 2. Registration of {@link PhoneAccount} with {@link TelecomManager}. *
* See {@link PhoneAccount} and {@link TelecomManager#registerPhoneAccount} for more information. *

* Once registered and enabled by the user in the phone app settings, telecom will bind to a * {@code ConnectionService} implementation when it wants that {@code ConnectionService} to place * a call or the service has indicated that is has an incoming call through * {@link TelecomManager#addNewIncomingCall}. The {@code ConnectionService} can then expect a call * to {@link #onCreateIncomingConnection} or {@link #onCreateOutgoingConnection} wherein it * should provide a new instance of a {@link Connection} object. It is through this * {@link Connection} object that telecom receives state updates and the {@code ConnectionService} * receives call-commands such as answer, reject, hold and disconnect. *

* When there are no more live calls, telecom will unbind from the {@code ConnectionService}. */ public abstract class ConnectionService extends Service { /** * The {@link Intent} that must be declared as handled by the service. */ @SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION) public static final String SERVICE_INTERFACE = "android.telecom.ConnectionService"; // Flag controlling whether PII is emitted into the logs private static final boolean PII_DEBUG = Log.isLoggable(android.util.Log.DEBUG); private static final int MSG_ADD_CONNECTION_SERVICE_ADAPTER = 1; private static final int MSG_CREATE_CONNECTION = 2; private static final int MSG_ABORT = 3; private static final int MSG_ANSWER = 4; private static final int MSG_REJECT = 5; private static final int MSG_DISCONNECT = 6; private static final int MSG_HOLD = 7; private static final int MSG_UNHOLD = 8; private static final int MSG_ON_CALL_AUDIO_STATE_CHANGED = 9; private static final int MSG_PLAY_DTMF_TONE = 10; private static final int MSG_STOP_DTMF_TONE = 11; private static final int MSG_CONFERENCE = 12; private static final int MSG_SPLIT_FROM_CONFERENCE = 13; private static final int MSG_ON_POST_DIAL_CONTINUE = 14; private static final int MSG_REMOVE_CONNECTION_SERVICE_ADAPTER = 16; private static final int MSG_ANSWER_VIDEO = 17; private static final int MSG_MERGE_CONFERENCE = 18; private static final int MSG_SWAP_CONFERENCE = 19; private static Connection sNullConnection; private final Map mConnectionById = new ConcurrentHashMap<>(); private final Map mIdByConnection = new ConcurrentHashMap<>(); private final Map mConferenceById = new ConcurrentHashMap<>(); private final Map mIdByConference = new ConcurrentHashMap<>(); private final RemoteConnectionManager mRemoteConnectionManager = new RemoteConnectionManager(this); private final List mPreInitializationConnectionRequests = new ArrayList<>(); private final ConnectionServiceAdapter mAdapter = new ConnectionServiceAdapter(); private boolean mAreAccountsInitialized = false; private Conference sNullConference; private final IBinder mBinder = new IConnectionService.Stub() { @Override public void addConnectionServiceAdapter(IConnectionServiceAdapter adapter) { mHandler.obtainMessage(MSG_ADD_CONNECTION_SERVICE_ADAPTER, adapter).sendToTarget(); } public void removeConnectionServiceAdapter(IConnectionServiceAdapter adapter) { mHandler.obtainMessage(MSG_REMOVE_CONNECTION_SERVICE_ADAPTER, adapter).sendToTarget(); } @Override public void createConnection( PhoneAccountHandle connectionManagerPhoneAccount, String id, ConnectionRequest request, boolean isIncoming, boolean isUnknown) { SomeArgs args = SomeArgs.obtain(); args.arg1 = connectionManagerPhoneAccount; args.arg2 = id; args.arg3 = request; args.argi1 = isIncoming ? 1 : 0; args.argi2 = isUnknown ? 1 : 0; mHandler.obtainMessage(MSG_CREATE_CONNECTION, args).sendToTarget(); } @Override public void abort(String callId) { mHandler.obtainMessage(MSG_ABORT, callId).sendToTarget(); } @Override public void answerVideo(String callId, int videoState) { SomeArgs args = SomeArgs.obtain(); args.arg1 = callId; args.argi1 = videoState; mHandler.obtainMessage(MSG_ANSWER_VIDEO, args).sendToTarget(); } @Override public void answer(String callId) { mHandler.obtainMessage(MSG_ANSWER, callId).sendToTarget(); } @Override public void reject(String callId) { mHandler.obtainMessage(MSG_REJECT, callId).sendToTarget(); } @Override public void disconnect(String callId) { mHandler.obtainMessage(MSG_DISCONNECT, callId).sendToTarget(); } @Override public void hold(String callId) { mHandler.obtainMessage(MSG_HOLD, callId).sendToTarget(); } @Override public void unhold(String callId) { mHandler.obtainMessage(MSG_UNHOLD, callId).sendToTarget(); } @Override public void onCallAudioStateChanged(String callId, CallAudioState callAudioState) { SomeArgs args = SomeArgs.obtain(); args.arg1 = callId; args.arg2 = callAudioState; mHandler.obtainMessage(MSG_ON_CALL_AUDIO_STATE_CHANGED, args).sendToTarget(); } @Override public void playDtmfTone(String callId, char digit) { mHandler.obtainMessage(MSG_PLAY_DTMF_TONE, digit, 0, callId).sendToTarget(); } @Override public void stopDtmfTone(String callId) { mHandler.obtainMessage(MSG_STOP_DTMF_TONE, callId).sendToTarget(); } @Override public void conference(String callId1, String callId2) { SomeArgs args = SomeArgs.obtain(); args.arg1 = callId1; args.arg2 = callId2; mHandler.obtainMessage(MSG_CONFERENCE, args).sendToTarget(); } @Override public void splitFromConference(String callId) { mHandler.obtainMessage(MSG_SPLIT_FROM_CONFERENCE, callId).sendToTarget(); } @Override public void mergeConference(String callId) { mHandler.obtainMessage(MSG_MERGE_CONFERENCE, callId).sendToTarget(); } @Override public void swapConference(String callId) { mHandler.obtainMessage(MSG_SWAP_CONFERENCE, callId).sendToTarget(); } @Override public void onPostDialContinue(String callId, boolean proceed) { SomeArgs args = SomeArgs.obtain(); args.arg1 = callId; args.argi1 = proceed ? 1 : 0; mHandler.obtainMessage(MSG_ON_POST_DIAL_CONTINUE, args).sendToTarget(); } }; private final Handler mHandler = new Handler(Looper.getMainLooper()) { @Override public void handleMessage(Message msg) { switch (msg.what) { case MSG_ADD_CONNECTION_SERVICE_ADAPTER: mAdapter.addAdapter((IConnectionServiceAdapter) msg.obj); onAdapterAttached(); break; case MSG_REMOVE_CONNECTION_SERVICE_ADAPTER: mAdapter.removeAdapter((IConnectionServiceAdapter) msg.obj); break; case MSG_CREATE_CONNECTION: { SomeArgs args = (SomeArgs) msg.obj; try { final PhoneAccountHandle connectionManagerPhoneAccount = (PhoneAccountHandle) args.arg1; final String id = (String) args.arg2; final ConnectionRequest request = (ConnectionRequest) args.arg3; final boolean isIncoming = args.argi1 == 1; final boolean isUnknown = args.argi2 == 1; if (!mAreAccountsInitialized) { Log.d(this, "Enqueueing pre-init request %s", id); mPreInitializationConnectionRequests.add(new Runnable() { @Override public void run() { createConnection( connectionManagerPhoneAccount, id, request, isIncoming, isUnknown); } }); } else { createConnection( connectionManagerPhoneAccount, id, request, isIncoming, isUnknown); } } finally { args.recycle(); } break; } case MSG_ABORT: abort((String) msg.obj); break; case MSG_ANSWER: answer((String) msg.obj); break; case MSG_ANSWER_VIDEO: { SomeArgs args = (SomeArgs) msg.obj; try { String callId = (String) args.arg1; int videoState = args.argi1; answerVideo(callId, videoState); } finally { args.recycle(); } break; } case MSG_REJECT: reject((String) msg.obj); break; case MSG_DISCONNECT: disconnect((String) msg.obj); break; case MSG_HOLD: hold((String) msg.obj); break; case MSG_UNHOLD: unhold((String) msg.obj); break; case MSG_ON_CALL_AUDIO_STATE_CHANGED: { SomeArgs args = (SomeArgs) msg.obj; try { String callId = (String) args.arg1; CallAudioState audioState = (CallAudioState) args.arg2; onCallAudioStateChanged(callId, new CallAudioState(audioState)); } finally { args.recycle(); } break; } case MSG_PLAY_DTMF_TONE: playDtmfTone((String) msg.obj, (char) msg.arg1); break; case MSG_STOP_DTMF_TONE: stopDtmfTone((String) msg.obj); break; case MSG_CONFERENCE: { SomeArgs args = (SomeArgs) msg.obj; try { String callId1 = (String) args.arg1; String callId2 = (String) args.arg2; conference(callId1, callId2); } finally { args.recycle(); } break; } case MSG_SPLIT_FROM_CONFERENCE: splitFromConference((String) msg.obj); break; case MSG_MERGE_CONFERENCE: mergeConference((String) msg.obj); break; case MSG_SWAP_CONFERENCE: swapConference((String) msg.obj); break; case MSG_ON_POST_DIAL_CONTINUE: { SomeArgs args = (SomeArgs) msg.obj; try { String callId = (String) args.arg1; boolean proceed = (args.argi1 == 1); onPostDialContinue(callId, proceed); } finally { args.recycle(); } break; } default: break; } } }; private final Conference.Listener mConferenceListener = new Conference.Listener() { @Override public void onStateChanged(Conference conference, int oldState, int newState) { String id = mIdByConference.get(conference); switch (newState) { case Connection.STATE_ACTIVE: mAdapter.setActive(id); break; case Connection.STATE_HOLDING: mAdapter.setOnHold(id); break; case Connection.STATE_DISCONNECTED: // handled by onDisconnected break; } } @Override public void onDisconnected(Conference conference, DisconnectCause disconnectCause) { String id = mIdByConference.get(conference); mAdapter.setDisconnected(id, disconnectCause); } @Override public void onConnectionAdded(Conference conference, Connection connection) { } @Override public void onConnectionRemoved(Conference conference, Connection connection) { } @Override public void onConferenceableConnectionsChanged( Conference conference, List conferenceableConnections) { mAdapter.setConferenceableConnections( mIdByConference.get(conference), createConnectionIdList(conferenceableConnections)); } @Override public void onDestroyed(Conference conference) { removeConference(conference); } @Override public void onConnectionCapabilitiesChanged( Conference conference, int connectionCapabilities) { String id = mIdByConference.get(conference); Log.d(this, "call capabilities: conference: %s", Connection.capabilitiesToString(connectionCapabilities)); mAdapter.setConnectionCapabilities(id, connectionCapabilities); } @Override public void onVideoStateChanged(Conference c, int videoState) { String id = mIdByConference.get(c); Log.d(this, "onVideoStateChanged set video state %d", videoState); mAdapter.setVideoState(id, videoState); } @Override public void onVideoProviderChanged(Conference c, Connection.VideoProvider videoProvider) { String id = mIdByConference.get(c); Log.d(this, "onVideoProviderChanged: Connection: %s, VideoProvider: %s", c, videoProvider); mAdapter.setVideoProvider(id, videoProvider); } @Override public void onStatusHintsChanged(Conference conference, StatusHints statusHints) { String id = mIdByConference.get(conference); mAdapter.setStatusHints(id, statusHints); } @Override public void onExtrasChanged(Conference conference, Bundle extras) { String id = mIdByConference.get(conference); mAdapter.setExtras(id, extras); } }; private final Connection.Listener mConnectionListener = new Connection.Listener() { @Override public void onStateChanged(Connection c, int state) { String id = mIdByConnection.get(c); Log.d(this, "Adapter set state %s %s", id, Connection.stateToString(state)); switch (state) { case Connection.STATE_ACTIVE: mAdapter.setActive(id); break; case Connection.STATE_DIALING: mAdapter.setDialing(id); break; case Connection.STATE_DISCONNECTED: // Handled in onDisconnected() break; case Connection.STATE_HOLDING: mAdapter.setOnHold(id); break; case Connection.STATE_NEW: // Nothing to tell Telecom break; case Connection.STATE_RINGING: mAdapter.setRinging(id); break; } } @Override public void onDisconnected(Connection c, DisconnectCause disconnectCause) { String id = mIdByConnection.get(c); Log.d(this, "Adapter set disconnected %s", disconnectCause); mAdapter.setDisconnected(id, disconnectCause); } @Override public void onVideoStateChanged(Connection c, int videoState) { String id = mIdByConnection.get(c); Log.d(this, "Adapter set video state %d", videoState); mAdapter.setVideoState(id, videoState); } @Override public void onAddressChanged(Connection c, Uri address, int presentation) { String id = mIdByConnection.get(c); mAdapter.setAddress(id, address, presentation); } @Override public void onCallerDisplayNameChanged( Connection c, String callerDisplayName, int presentation) { String id = mIdByConnection.get(c); mAdapter.setCallerDisplayName(id, callerDisplayName, presentation); } @Override public void onDestroyed(Connection c) { removeConnection(c); } @Override public void onPostDialWait(Connection c, String remaining) { String id = mIdByConnection.get(c); Log.d(this, "Adapter onPostDialWait %s, %s", c, remaining); mAdapter.onPostDialWait(id, remaining); } @Override public void onPostDialChar(Connection c, char nextChar) { String id = mIdByConnection.get(c); Log.d(this, "Adapter onPostDialChar %s, %s", c, nextChar); mAdapter.onPostDialChar(id, nextChar); } @Override public void onRingbackRequested(Connection c, boolean ringback) { String id = mIdByConnection.get(c); Log.d(this, "Adapter onRingback %b", ringback); mAdapter.setRingbackRequested(id, ringback); } @Override public void onConnectionCapabilitiesChanged(Connection c, int capabilities) { String id = mIdByConnection.get(c); Log.d(this, "capabilities: parcelableconnection: %s", Connection.capabilitiesToString(capabilities)); mAdapter.setConnectionCapabilities(id, capabilities); } @Override public void onVideoProviderChanged(Connection c, Connection.VideoProvider videoProvider) { String id = mIdByConnection.get(c); Log.d(this, "onVideoProviderChanged: Connection: %s, VideoProvider: %s", c, videoProvider); mAdapter.setVideoProvider(id, videoProvider); } @Override public void onAudioModeIsVoipChanged(Connection c, boolean isVoip) { String id = mIdByConnection.get(c); mAdapter.setIsVoipAudioMode(id, isVoip); } @Override public void onStatusHintsChanged(Connection c, StatusHints statusHints) { String id = mIdByConnection.get(c); mAdapter.setStatusHints(id, statusHints); } @Override public void onConferenceablesChanged( Connection connection, List conferenceables) { mAdapter.setConferenceableConnections( mIdByConnection.get(connection), createIdList(conferenceables)); } @Override public void onConferenceChanged(Connection connection, Conference conference) { String id = mIdByConnection.get(connection); if (id != null) { String conferenceId = null; if (conference != null) { conferenceId = mIdByConference.get(conference); } mAdapter.setIsConferenced(id, conferenceId); } } @Override public void onConferenceMergeFailed(Connection connection) { String id = mIdByConnection.get(connection); if (id != null) { mAdapter.onConferenceMergeFailed(id); } } @Override public void onExtrasChanged(Connection connection, Bundle extras) { String id = mIdByConnection.get(connection); if (id != null) { mAdapter.setExtras(id, extras); } } }; /** {@inheritDoc} */ @Override public final IBinder onBind(Intent intent) { return mBinder; } /** {@inheritDoc} */ @Override public boolean onUnbind(Intent intent) { endAllConnections(); return super.onUnbind(intent); } /** * This can be used by telecom to either create a new outgoing call or attach to an existing * incoming call. In either case, telecom will cycle through a set of services and call * createConnection util a connection service cancels the process or completes it successfully. */ private void createConnection( final PhoneAccountHandle callManagerAccount, final String callId, final ConnectionRequest request, boolean isIncoming, boolean isUnknown) { Log.d(this, "createConnection, callManagerAccount: %s, callId: %s, request: %s, " + "isIncoming: %b, isUnknown: %b", callManagerAccount, callId, request, isIncoming, isUnknown); Connection connection = isUnknown ? onCreateUnknownConnection(callManagerAccount, request) : isIncoming ? onCreateIncomingConnection(callManagerAccount, request) : onCreateOutgoingConnection(callManagerAccount, request); Log.d(this, "createConnection, connection: %s", connection); if (connection == null) { connection = Connection.createFailedConnection( new DisconnectCause(DisconnectCause.ERROR)); } if (connection.getState() != Connection.STATE_DISCONNECTED) { addConnection(callId, connection); } Uri address = connection.getAddress(); String number = address == null ? "null" : address.getSchemeSpecificPart(); Log.v(this, "createConnection, number: %s, state: %s, capabilities: %s", Connection.toLogSafePhoneNumber(number), Connection.stateToString(connection.getState()), Connection.capabilitiesToString(connection.getConnectionCapabilities())); Log.d(this, "createConnection, calling handleCreateConnectionSuccessful %s", callId); mAdapter.handleCreateConnectionComplete( callId, request, new ParcelableConnection( request.getAccountHandle(), connection.getState(), connection.getConnectionCapabilities(), connection.getAddress(), connection.getAddressPresentation(), connection.getCallerDisplayName(), connection.getCallerDisplayNamePresentation(), connection.getVideoProvider() == null ? null : connection.getVideoProvider().getInterface(), connection.getVideoState(), connection.isRingbackRequested(), connection.getAudioModeIsVoip(), connection.getConnectTimeMillis(), connection.getStatusHints(), connection.getDisconnectCause(), createIdList(connection.getConferenceables()), connection.getExtras())); } private void abort(String callId) { Log.d(this, "abort %s", callId); findConnectionForAction(callId, "abort").onAbort(); } private void answerVideo(String callId, int videoState) { Log.d(this, "answerVideo %s", callId); findConnectionForAction(callId, "answer").onAnswer(videoState); } private void answer(String callId) { Log.d(this, "answer %s", callId); findConnectionForAction(callId, "answer").onAnswer(); } private void reject(String callId) { Log.d(this, "reject %s", callId); findConnectionForAction(callId, "reject").onReject(); } private void disconnect(String callId) { Log.d(this, "disconnect %s", callId); if (mConnectionById.containsKey(callId)) { findConnectionForAction(callId, "disconnect").onDisconnect(); } else { findConferenceForAction(callId, "disconnect").onDisconnect(); } } private void hold(String callId) { Log.d(this, "hold %s", callId); if (mConnectionById.containsKey(callId)) { findConnectionForAction(callId, "hold").onHold(); } else { findConferenceForAction(callId, "hold").onHold(); } } private void unhold(String callId) { Log.d(this, "unhold %s", callId); if (mConnectionById.containsKey(callId)) { findConnectionForAction(callId, "unhold").onUnhold(); } else { findConferenceForAction(callId, "unhold").onUnhold(); } } private void onCallAudioStateChanged(String callId, CallAudioState callAudioState) { Log.d(this, "onAudioStateChanged %s %s", callId, callAudioState); if (mConnectionById.containsKey(callId)) { findConnectionForAction(callId, "onCallAudioStateChanged").setCallAudioState( callAudioState); } else { findConferenceForAction(callId, "onCallAudioStateChanged").setCallAudioState( callAudioState); } } private void playDtmfTone(String callId, char digit) { Log.d(this, "playDtmfTone %s %c", callId, digit); if (mConnectionById.containsKey(callId)) { findConnectionForAction(callId, "playDtmfTone").onPlayDtmfTone(digit); } else { findConferenceForAction(callId, "playDtmfTone").onPlayDtmfTone(digit); } } private void stopDtmfTone(String callId) { Log.d(this, "stopDtmfTone %s", callId); if (mConnectionById.containsKey(callId)) { findConnectionForAction(callId, "stopDtmfTone").onStopDtmfTone(); } else { findConferenceForAction(callId, "stopDtmfTone").onStopDtmfTone(); } } private void conference(String callId1, String callId2) { Log.d(this, "conference %s, %s", callId1, callId2); // Attempt to get second connection or conference. Connection connection2 = findConnectionForAction(callId2, "conference"); Conference conference2 = getNullConference(); if (connection2 == getNullConnection()) { conference2 = findConferenceForAction(callId2, "conference"); if (conference2 == getNullConference()) { Log.w(this, "Connection2 or Conference2 missing in conference request %s.", callId2); return; } } // Attempt to get first connection or conference and perform merge. Connection connection1 = findConnectionForAction(callId1, "conference"); if (connection1 == getNullConnection()) { Conference conference1 = findConferenceForAction(callId1, "addConnection"); if (conference1 == getNullConference()) { Log.w(this, "Connection1 or Conference1 missing in conference request %s.", callId1); } else { // Call 1 is a conference. if (connection2 != getNullConnection()) { // Call 2 is a connection so merge via call 1 (conference). conference1.onMerge(connection2); } else { // Call 2 is ALSO a conference; this should never happen. Log.wtf(this, "There can only be one conference and an attempt was made to " + "merge two conferences."); return; } } } else { // Call 1 is a connection. if (conference2 != getNullConference()) { // Call 2 is a conference, so merge via call 2. conference2.onMerge(connection1); } else { // Call 2 is a connection, so merge together. onConference(connection1, connection2); } } } private void splitFromConference(String callId) { Log.d(this, "splitFromConference(%s)", callId); Connection connection = findConnectionForAction(callId, "splitFromConference"); if (connection == getNullConnection()) { Log.w(this, "Connection missing in conference request %s.", callId); return; } Conference conference = connection.getConference(); if (conference != null) { conference.onSeparate(connection); } } private void mergeConference(String callId) { Log.d(this, "mergeConference(%s)", callId); Conference conference = findConferenceForAction(callId, "mergeConference"); if (conference != null) { conference.onMerge(); } } private void swapConference(String callId) { Log.d(this, "swapConference(%s)", callId); Conference conference = findConferenceForAction(callId, "swapConference"); if (conference != null) { conference.onSwap(); } } private void onPostDialContinue(String callId, boolean proceed) { Log.d(this, "onPostDialContinue(%s)", callId); findConnectionForAction(callId, "stopDtmfTone").onPostDialContinue(proceed); } private void onAdapterAttached() { if (mAreAccountsInitialized) { // No need to query again if we already did it. return; } mAdapter.queryRemoteConnectionServices(new RemoteServiceCallback.Stub() { @Override public void onResult( final List componentNames, final List services) { mHandler.post(new Runnable() { @Override public void run() { for (int i = 0; i < componentNames.size() && i < services.size(); i++) { mRemoteConnectionManager.addConnectionService( componentNames.get(i), IConnectionService.Stub.asInterface(services.get(i))); } onAccountsInitialized(); Log.d(this, "remote connection services found: " + services); } }); } @Override public void onError() { mHandler.post(new Runnable() { @Override public void run() { mAreAccountsInitialized = true; } }); } }); } /** * Ask some other {@code ConnectionService} to create a {@code RemoteConnection} given an * incoming request. This is used by {@code ConnectionService}s that are registered with * {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER} and want to be able to manage * SIM-based incoming calls. * * @param connectionManagerPhoneAccount See description at * {@link #onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest)}. * @param request Details about the incoming call. * @return The {@code Connection} object to satisfy this call, or {@code null} to * not handle the call. */ public final RemoteConnection createRemoteIncomingConnection( PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request) { return mRemoteConnectionManager.createRemoteConnection( connectionManagerPhoneAccount, request, true); } /** * Ask some other {@code ConnectionService} to create a {@code RemoteConnection} given an * outgoing request. This is used by {@code ConnectionService}s that are registered with * {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER} and want to be able to use the * SIM-based {@code ConnectionService} to place its outgoing calls. * * @param connectionManagerPhoneAccount See description at * {@link #onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest)}. * @param request Details about the incoming call. * @return The {@code Connection} object to satisfy this call, or {@code null} to * not handle the call. */ public final RemoteConnection createRemoteOutgoingConnection( PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request) { return mRemoteConnectionManager.createRemoteConnection( connectionManagerPhoneAccount, request, false); } /** * Indicates to the relevant {@code RemoteConnectionService} that the specified * {@link RemoteConnection}s should be merged into a conference call. *

* If the conference request is successful, the method {@link #onRemoteConferenceAdded} will * be invoked. * * @param remoteConnection1 The first of the remote connections to conference. * @param remoteConnection2 The second of the remote connections to conference. */ public final void conferenceRemoteConnections( RemoteConnection remoteConnection1, RemoteConnection remoteConnection2) { mRemoteConnectionManager.conferenceRemoteConnections(remoteConnection1, remoteConnection2); } /** * Adds a new conference call. When a conference call is created either as a result of an * explicit request via {@link #onConference} or otherwise, the connection service should supply * an instance of {@link Conference} by invoking this method. A conference call provided by this * method will persist until {@link Conference#destroy} is invoked on the conference instance. * * @param conference The new conference object. */ public final void addConference(Conference conference) { Log.d(this, "addConference: conference=%s", conference); String id = addConferenceInternal(conference); if (id != null) { List connectionIds = new ArrayList<>(2); for (Connection connection : conference.getConnections()) { if (mIdByConnection.containsKey(connection)) { connectionIds.add(mIdByConnection.get(connection)); } } ParcelableConference parcelableConference = new ParcelableConference( conference.getPhoneAccountHandle(), conference.getState(), conference.getConnectionCapabilities(), connectionIds, conference.getVideoProvider() == null ? null : conference.getVideoProvider().getInterface(), conference.getVideoState(), conference.getConnectTimeMillis(), conference.getStatusHints(), conference.getExtras()); mAdapter.addConferenceCall(id, parcelableConference); mAdapter.setVideoProvider(id, conference.getVideoProvider()); mAdapter.setVideoState(id, conference.getVideoState()); // Go through any child calls and set the parent. for (Connection connection : conference.getConnections()) { String connectionId = mIdByConnection.get(connection); if (connectionId != null) { mAdapter.setIsConferenced(connectionId, id); } } } } /** * Adds a connection created by the {@link ConnectionService} and informs telecom of the new * connection. * * @param phoneAccountHandle The phone account handle for the connection. * @param connection The connection to add. */ public final void addExistingConnection(PhoneAccountHandle phoneAccountHandle, Connection connection) { String id = addExistingConnectionInternal(connection); if (id != null) { List emptyList = new ArrayList<>(0); ParcelableConnection parcelableConnection = new ParcelableConnection( phoneAccountHandle, connection.getState(), connection.getConnectionCapabilities(), connection.getAddress(), connection.getAddressPresentation(), connection.getCallerDisplayName(), connection.getCallerDisplayNamePresentation(), connection.getVideoProvider() == null ? null : connection.getVideoProvider().getInterface(), connection.getVideoState(), connection.isRingbackRequested(), connection.getAudioModeIsVoip(), connection.getConnectTimeMillis(), connection.getStatusHints(), connection.getDisconnectCause(), emptyList, connection.getExtras()); mAdapter.addExistingConnection(id, parcelableConnection); } } /** * Returns all the active {@code Connection}s for which this {@code ConnectionService} * has taken responsibility. * * @return A collection of {@code Connection}s created by this {@code ConnectionService}. */ public final Collection getAllConnections() { return mConnectionById.values(); } /** * Create a {@code Connection} given an incoming request. This is used to attach to existing * incoming calls. * * @param connectionManagerPhoneAccount See description at * {@link #onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest)}. * @param request Details about the incoming call. * @return The {@code Connection} object to satisfy this call, or {@code null} to * not handle the call. */ public Connection onCreateIncomingConnection( PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request) { return null; } /** * Create a {@code Connection} given an outgoing request. This is used to initiate new * outgoing calls. * * @param connectionManagerPhoneAccount The connection manager account to use for managing * this call. *

* If this parameter is not {@code null}, it means that this {@code ConnectionService} * has registered one or more {@code PhoneAccount}s having * {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER}. This parameter will contain * one of these {@code PhoneAccount}s, while the {@code request} will contain another * (usually but not always distinct) {@code PhoneAccount} to be used for actually * making the connection. *

* If this parameter is {@code null}, it means that this {@code ConnectionService} is * being asked to make a direct connection. The * {@link ConnectionRequest#getAccountHandle()} of parameter {@code request} will be * a {@code PhoneAccount} registered by this {@code ConnectionService} to use for * making the connection. * @param request Details about the outgoing call. * @return The {@code Connection} object to satisfy this call, or the result of an invocation * of {@link Connection#createFailedConnection(DisconnectCause)} to not handle the call. */ public Connection onCreateOutgoingConnection( PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request) { return null; } /** * Create a {@code Connection} for a new unknown call. An unknown call is a call originating * from the ConnectionService that was neither a user-initiated outgoing call, nor an incoming * call created using * {@code TelecomManager#addNewIncomingCall(PhoneAccountHandle, android.os.Bundle)}. * * @param connectionManagerPhoneAccount * @param request * @return * * @hide */ public Connection onCreateUnknownConnection(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request) { return null; } /** * Conference two specified connections. Invoked when the user has made a request to merge the * specified connections into a conference call. In response, the connection service should * create an instance of {@link Conference} and pass it into {@link #addConference}. * * @param connection1 A connection to merge into a conference call. * @param connection2 A connection to merge into a conference call. */ public void onConference(Connection connection1, Connection connection2) {} /** * Indicates that a remote conference has been created for existing {@link RemoteConnection}s. * When this method is invoked, this {@link ConnectionService} should create its own * representation of the conference call and send it to telecom using {@link #addConference}. *

* This is only relevant to {@link ConnectionService}s which are registered with * {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER}. * * @param conference The remote conference call. */ public void onRemoteConferenceAdded(RemoteConference conference) {} /** * Called when an existing connection is added remotely. * @param connection The existing connection which was added. */ public void onRemoteExistingConnectionAdded(RemoteConnection connection) {} /** * @hide */ public boolean containsConference(Conference conference) { return mIdByConference.containsKey(conference); } /** {@hide} */ void addRemoteConference(RemoteConference remoteConference) { onRemoteConferenceAdded(remoteConference); } /** {@hide} */ void addRemoteExistingConnection(RemoteConnection remoteConnection) { onRemoteExistingConnectionAdded(remoteConnection); } private void onAccountsInitialized() { mAreAccountsInitialized = true; for (Runnable r : mPreInitializationConnectionRequests) { r.run(); } mPreInitializationConnectionRequests.clear(); } /** * Adds an existing connection to the list of connections, identified by a new UUID. * * @param connection The connection. * @return The UUID of the connection (e.g. the call-id). */ private String addExistingConnectionInternal(Connection connection) { String id = UUID.randomUUID().toString(); addConnection(id, connection); return id; } private void addConnection(String callId, Connection connection) { mConnectionById.put(callId, connection); mIdByConnection.put(connection, callId); connection.addConnectionListener(mConnectionListener); connection.setConnectionService(this); } /** {@hide} */ protected void removeConnection(Connection connection) { String id = mIdByConnection.get(connection); connection.unsetConnectionService(this); connection.removeConnectionListener(mConnectionListener); mConnectionById.remove(mIdByConnection.get(connection)); mIdByConnection.remove(connection); mAdapter.removeCall(id); } private String addConferenceInternal(Conference conference) { if (mIdByConference.containsKey(conference)) { Log.w(this, "Re-adding an existing conference: %s.", conference); } else if (conference != null) { String id = UUID.randomUUID().toString(); mConferenceById.put(id, conference); mIdByConference.put(conference, id); conference.addListener(mConferenceListener); return id; } return null; } private void removeConference(Conference conference) { if (mIdByConference.containsKey(conference)) { conference.removeListener(mConferenceListener); String id = mIdByConference.get(conference); mConferenceById.remove(id); mIdByConference.remove(conference); mAdapter.removeCall(id); } } private Connection findConnectionForAction(String callId, String action) { if (mConnectionById.containsKey(callId)) { return mConnectionById.get(callId); } Log.w(this, "%s - Cannot find Connection %s", action, callId); return getNullConnection(); } static synchronized Connection getNullConnection() { if (sNullConnection == null) { sNullConnection = new Connection() {}; } return sNullConnection; } private Conference findConferenceForAction(String conferenceId, String action) { if (mConferenceById.containsKey(conferenceId)) { return mConferenceById.get(conferenceId); } Log.w(this, "%s - Cannot find conference %s", action, conferenceId); return getNullConference(); } private List createConnectionIdList(List connections) { List ids = new ArrayList<>(); for (Connection c : connections) { if (mIdByConnection.containsKey(c)) { ids.add(mIdByConnection.get(c)); } } Collections.sort(ids); return ids; } /** * Builds a list of {@link Connection} and {@link Conference} IDs based on the list of * {@link Conferenceable}s passed in. * * @param conferenceables The {@link Conferenceable} connections and conferences. * @return List of string conference and call Ids. */ private List createIdList(List conferenceables) { List ids = new ArrayList<>(); for (Conferenceable c : conferenceables) { // Only allow Connection and Conference conferenceables. if (c instanceof Connection) { Connection connection = (Connection) c; if (mIdByConnection.containsKey(connection)) { ids.add(mIdByConnection.get(connection)); } } else if (c instanceof Conference) { Conference conference = (Conference) c; if (mIdByConference.containsKey(conference)) { ids.add(mIdByConference.get(conference)); } } } Collections.sort(ids); return ids; } private Conference getNullConference() { if (sNullConference == null) { sNullConference = new Conference(null) {}; } return sNullConference; } private void endAllConnections() { // Unbound from telecomm. We should end all connections and conferences. for (Connection connection : mIdByConnection.keySet()) { // only operate on top-level calls. Conference calls will be removed on their own. if (connection.getConference() == null) { connection.onDisconnect(); } } for (Conference conference : mIdByConference.keySet()) { conference.onDisconnect(); } } }