content: /*
   * 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.net.Uri;
  import android.os.Bundle;
  import android.os.IBinder.DeathRecipient;
  import android.os.RemoteException;
  
  import com.android.internal.telecom.IConnectionServiceAdapter;
  import com.android.internal.telecom.RemoteServiceCallback;
  
  import java.util.Collections;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Set;
  import java.util.concurrent.ConcurrentHashMap;
  
  /**
   * Provides methods for IConnectionService implementations to interact with the system phone app.
   *
   * @hide
   */
  final class ConnectionServiceAdapter implements DeathRecipient {
      /**
       * ConcurrentHashMap constructor params: 8 is initial table size, 0.9f is
       * load factor before resizing, 1 means we only expect a single thread to
       * access the map so make only a single shard
       */
      private final Set<IConnectionServiceAdapter> mAdapters = Collections.newSetFromMap(
              new ConcurrentHashMap<IConnectionServiceAdapter, Boolean>(8, 0.9f, 1));
  
      ConnectionServiceAdapter() {
      }
  
      void addAdapter(IConnectionServiceAdapter adapter) {
          for (IConnectionServiceAdapter it : mAdapters) {
              if (it.asBinder() == adapter.asBinder()) {
                  Log.w(this, "Ignoring duplicate adapter addition.");
                  return;
              }
          }
          if (mAdapters.add(adapter)) {
              try {
                  adapter.asBinder().linkToDeath(this, 0);
              } catch (RemoteException e) {
                  mAdapters.remove(adapter);
              }
          }
      }
  
      void removeAdapter(IConnectionServiceAdapter adapter) {
          if (adapter != null) {
              for (IConnectionServiceAdapter it : mAdapters) {
                  if (it.asBinder() == adapter.asBinder() && mAdapters.remove(it)) {
                      adapter.asBinder().unlinkToDeath(this, 0);
                      break;
                  }
              }
          }
      }
  
      /** ${inheritDoc} */
      @Override
      public void binderDied() {
          Iterator<IConnectionServiceAdapter> it = mAdapters.iterator();
          while (it.hasNext()) {
              IConnectionServiceAdapter adapter = it.next();
              if (!adapter.asBinder().isBinderAlive()) {
                  it.remove();
                  adapter.asBinder().unlinkToDeath(this, 0);
              }
          }
      }
  
      void handleCreateConnectionComplete(
              String id,
              ConnectionRequest request,
              ParcelableConnection connection) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.handleCreateConnectionComplete(id, request, connection,
                          Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets a call's state to active (e.g., an ongoing call where two parties can actively
       * communicate).
       *
       * @param callId The unique ID of the call whose state is changing to active.
       */
      void setActive(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setActive(callId, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets a call's state to ringing (e.g., an inbound ringing call).
       *
       * @param callId The unique ID of the call whose state is changing to ringing.
       */
      void setRinging(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setRinging(callId, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets a call's state to dialing (e.g., dialing an outbound call).
       *
       * @param callId The unique ID of the call whose state is changing to dialing.
       */
      void setDialing(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setDialing(callId, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets a call's state to pulling (e.g. a call with {@link Connection#PROPERTY_IS_EXTERNAL_CALL}
       * is being pulled to the local device.
       *
       * @param callId The unique ID of the call whose state is changing to dialing.
       */
      void setPulling(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setPulling(callId, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets a call's state to disconnected.
       *
       * @param callId The unique ID of the call whose state is changing to disconnected.
       * @param disconnectCause The reason for the disconnection, as described by
       *            {@link android.telecomm.DisconnectCause}.
       */
      void setDisconnected(String callId, DisconnectCause disconnectCause) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setDisconnected(callId, disconnectCause, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets a call's state to be on hold.
       *
       * @param callId - The unique ID of the call whose state is changing to be on hold.
       */
      void setOnHold(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setOnHold(callId, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Asks Telecom to start or stop a ringback tone for a call.
       *
       * @param callId The unique ID of the call whose ringback is being changed.
       * @param ringback Whether Telecom should start playing a ringback tone.
       */
      void setRingbackRequested(String callId, boolean ringback) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setRingbackRequested(callId, ringback, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      void setConnectionCapabilities(String callId, int capabilities) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setConnectionCapabilities(callId, capabilities, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      void setConnectionProperties(String callId, int properties) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setConnectionProperties(callId, properties, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Indicates whether or not the specified call is currently conferenced into the specified
       * conference call.
       *
       * @param callId The unique ID of the call being conferenced.
       * @param conferenceCallId The unique ID of the conference call. Null if call is not
       *            conferenced.
       */
      void setIsConferenced(String callId, String conferenceCallId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Log.d(this, "sending connection %s with conference %s", callId, conferenceCallId);
                  adapter.setIsConferenced(callId, conferenceCallId, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Indicates that the merge request on this call has failed.
       *
       * @param callId The unique ID of the call being conferenced.
       */
      void onConferenceMergeFailed(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Log.d(this, "merge failed for call %s", callId);
                  adapter.setConferenceMergeFailed(callId, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
          * Resets the cdma connection time.
          */
      void resetConnectionTime(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.resetConnectionTime(callId, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Indicates that the call no longer exists. Can be used with either a call or a conference
       * call.
       *
       * @param callId The unique ID of the call.
       */
      void removeCall(String callId) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.removeCall(callId, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      void onPostDialWait(String callId, String remaining) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onPostDialWait(callId, remaining, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      void onPostDialChar(String callId, char nextChar) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onPostDialChar(callId, nextChar, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Indicates that a new conference call has been created.
       *
       * @param callId The unique ID of the conference call.
       */
      void addConferenceCall(String callId, ParcelableConference parcelableConference) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.addConferenceCall(callId, parcelableConference, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Retrieves a list of remote connection services usable to place calls.
       */
      void queryRemoteConnectionServices(RemoteServiceCallback callback, String callingPackage) {
          // Only supported when there is only one adapter.
          if (mAdapters.size() == 1) {
              try {
                  mAdapters.iterator().next().queryRemoteConnectionServices(callback, callingPackage,
                          Log.getExternalSession());
              } catch (RemoteException e) {
                  Log.e(this, e, "Exception trying to query for remote CSs");
              }
          } else {
              try {
                  // This is not an error condition, so just pass back an empty list.
                  // This happens when querying from a remote connection service, not the connection
                  // manager itself.
                  callback.onResult(Collections.EMPTY_LIST, Collections.EMPTY_LIST);
              } catch (RemoteException e) {
                  Log.e(this, e, "Exception trying to query for remote CSs");
              }
          }
      }
  
      /**
       * Sets the call video provider for a call.
       *
       * @param callId The unique ID of the call to set with the given call video provider.
       * @param videoProvider The call video provider instance to set on the call.
       */
      void setVideoProvider(
              String callId, Connection.VideoProvider videoProvider) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setVideoProvider(
                          callId,
                          videoProvider == null ? null : videoProvider.getInterface(),
                          Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Requests that the framework use VOIP audio mode for this connection.
       *
       * @param callId The unique ID of the call to set with the given call video provider.
       * @param isVoip True if the audio mode is VOIP.
       */
      void setIsVoipAudioMode(String callId, boolean isVoip) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setIsVoipAudioMode(callId, isVoip, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      void setStatusHints(String callId, StatusHints statusHints) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setStatusHints(callId, statusHints, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      void setAddress(String callId, Uri address, int presentation) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setAddress(callId, address, presentation, Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      void setCallerDisplayName(String callId, String callerDisplayName, int presentation) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setCallerDisplayName(callId, callerDisplayName, presentation,
                          Log.getExternalSession());
              } catch (RemoteException e) {
              }
          }
      }
  
      /**
       * Sets the video state associated with a call.
       *
       * Valid values: {@link VideoProfile#STATE_BIDIRECTIONAL},
       * {@link VideoProfile#STATE_AUDIO_ONLY},
       * {@link VideoProfile#STATE_TX_ENABLED},
       * {@link VideoProfile#STATE_RX_ENABLED}.
       *
       * @param callId The unique ID of the call to set the video state for.
       * @param videoState The video state.
       */
      void setVideoState(String callId, int videoState) {
          Log.v(this, "setVideoState: %d", videoState);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setVideoState(callId, videoState, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      void setConferenceableConnections(String callId, List<String> conferenceableCallIds) {
          Log.v(this, "setConferenceableConnections: %s, %s", callId, conferenceableCallIds);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setConferenceableConnections(callId, conferenceableCallIds,
                          Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Informs telecom of an existing connection which was added by the {@link ConnectionService}.
       *
       * @param callId The unique ID of the call being added.
       * @param connection The connection.
       */
      void addExistingConnection(String callId, ParcelableConnection connection) {
          Log.v(this, "addExistingConnection: %s", callId);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.addExistingConnection(callId, connection, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Adds some extras associated with a {@code Connection}.
       *
       * @param callId The unique ID of the call.
       * @param extras The extras to add.
       */
      void putExtras(String callId, Bundle extras) {
          Log.v(this, "putExtras: %s", callId);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.putExtras(callId, extras, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Adds an extra associated with a {@code Connection}.
       *
       * @param callId The unique ID of the call.
       * @param key The extra key.
       * @param value The extra value.
       */
      void putExtra(String callId, String key, boolean value) {
          Log.v(this, "putExtra: %s %s=%b", callId, key, value);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Bundle bundle = new Bundle();
                  bundle.putBoolean(key, value);
                  adapter.putExtras(callId, bundle, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Adds an extra associated with a {@code Connection}.
       *
       * @param callId The unique ID of the call.
       * @param key The extra key.
       * @param value The extra value.
       */
      void putExtra(String callId, String key, int value) {
          Log.v(this, "putExtra: %s %s=%d", callId, key, value);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Bundle bundle = new Bundle();
                  bundle.putInt(key, value);
                  adapter.putExtras(callId, bundle, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Adds an extra associated with a {@code Connection}.
       *
       * @param callId The unique ID of the call.
       * @param key The extra key.
       * @param value The extra value.
       */
      void putExtra(String callId, String key, String value) {
          Log.v(this, "putExtra: %s %s=%s", callId, key, value);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Bundle bundle = new Bundle();
                  bundle.putString(key, value);
                  adapter.putExtras(callId, bundle, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Removes extras associated with a {@code Connection}.
       *  @param callId The unique ID of the call.
       * @param keys The extra keys to remove.
       */
      void removeExtras(String callId, List<String> keys) {
          Log.v(this, "removeExtras: %s %s", callId, keys);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.removeExtras(callId, keys, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Sets the audio route associated with a {@link Connection}.
       *
       * @param callId The unique ID of the call.
       * @param audioRoute The new audio route (see {@code CallAudioState#ROUTE_*}).
       */
      void setAudioRoute(String callId, int audioRoute, String bluetoothAddress) {
          Log.v(this, "setAudioRoute: %s %s %s", callId,
                  CallAudioState.audioRouteToString(audioRoute),
                  bluetoothAddress);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setAudioRoute(callId, audioRoute,
                          bluetoothAddress, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
  
      /**
       * Informs Telecom of a connection level event.
       *
       * @param callId The unique ID of the call.
       * @param event The event.
       * @param extras Extras associated with the event.
       */
      void onConnectionEvent(String callId, String event, Bundle extras) {
          Log.v(this, "onConnectionEvent: %s", event);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onConnectionEvent(callId, event, extras, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Notifies Telecom that an RTT session was successfully established.
       *
       * @param callId The unique ID of the call.
       */
      void onRttInitiationSuccess(String callId) {
          Log.v(this, "onRttInitiationSuccess: %s", callId);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onRttInitiationSuccess(callId, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Notifies Telecom that a requested RTT session failed to be established.
       *
       * @param callId The unique ID of the call.
       */
      void onRttInitiationFailure(String callId, int reason) {
          Log.v(this, "onRttInitiationFailure: %s", callId);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onRttInitiationFailure(callId, reason, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Notifies Telecom that an established RTT session was terminated by the remote user on
       * the call.
       *
       * @param callId The unique ID of the call.
       */
      void onRttSessionRemotelyTerminated(String callId) {
          Log.v(this, "onRttSessionRemotelyTerminated: %s", callId);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onRttSessionRemotelyTerminated(callId, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Notifies Telecom that the remote user on the call has requested an upgrade to an RTT
       * session for this call.
       *
       * @param callId The unique ID of the call.
       */
      void onRemoteRttRequest(String callId) {
          Log.v(this, "onRemoteRttRequest: %s", callId);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.onRemoteRttRequest(callId, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Notifies Telecom that a call's PhoneAccountHandle has changed.
       *
       * @param callId The unique ID of the call.
       * @param pHandle The new PhoneAccountHandle associated with the call.
       */
      void onPhoneAccountChanged(String callId, PhoneAccountHandle pHandle) {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Log.d(this, "onPhoneAccountChanged %s", callId);
                  adapter.onPhoneAccountChanged(callId, pHandle, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Notifies Telecom that the {@link ConnectionService} has released the call resource.
       */
      void onConnectionServiceFocusReleased() {
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  Log.d(this, "onConnectionServiceFocusReleased");
                  adapter.onConnectionServiceFocusReleased(Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  
      /**
       * Sets whether a conference is treated as a conference or a single party call.
       * See {@link Conference#setConferenceState(boolean)} for more information.
       *
       * @param callId The ID of the telecom call.
       * @param isConference {@code true} if this call should be treated as a conference,
       * {@code false} otherwise.
       */
      void setConferenceState(String callId, boolean isConference) {
          Log.v(this, "setConferenceState: %s %b", callId, isConference);
          for (IConnectionServiceAdapter adapter : mAdapters) {
              try {
                  adapter.setConferenceState(callId, isConference, Log.getExternalSession());
              } catch (RemoteException ignored) {
              }
          }
      }
  }
  