| /* |
| * Copyright (C) 2020 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.annotation.NonNull; |
| import android.annotation.SystemApi; |
| import android.telephony.ims.stub.SipDelegate; |
| |
| /** |
| * Represents a connection to the remote {@link SipDelegate} that is managed by the |
| * {@link ImsService} implementing IMS for the subscription that is associated with it. |
| * <p> |
| * The remote delegate will handle messages sent by this {@link SipDelegateConnection}, notifying |
| * the associated {@link DelegateMessageCallback} when the message was either sent successfully or |
| * failed to be sent. |
| * <p> |
| * It is also the responsibility of this {@link SipDelegateConnection} to acknowledge when incoming |
| * SIP messages have been received successfully via |
| * {@link DelegateMessageCallback#onMessageReceived(SipMessage)} or when there was an error |
| * receiving the message using {@link #notifyMessageReceived(String)} and |
| * {@link #notifyMessageReceiveError(String, int)}. |
| * |
| * @see SipDelegateManager#createSipDelegate |
| * @hide |
| */ |
| @SystemApi |
| public interface SipDelegateConnection { |
| |
| /** |
| * Send a SIP message to the SIP delegate to be sent over the carrier’s network. The |
| * {@link SipMessage} will either be acknowledged with |
| * {@link DelegateMessageCallback#onMessageSent(String)} upon successful sending of this message |
| * or {@link DelegateMessageCallback#onMessageSendFailure(String, int)} if there was an error |
| * sending the message. |
| * @param sipMessage The SipMessage to be sent. |
| * @param configVersion The SipDelegateImsConfiguration version used to construct the |
| * SipMessage. See {@link SipDelegateConfiguration#getVersion} for more |
| */ |
| void sendMessage(@NonNull SipMessage sipMessage, long configVersion); |
| |
| /** |
| * Notify the {@link SipDelegate} that a SIP message received from |
| * {@link DelegateMessageCallback#onMessageReceived(SipMessage)} has been received successfully |
| * and is being processed. |
| * @param viaTransactionId Per RFC3261 Sec 8.1.1.7 the transaction ID associated with the Via |
| * branch parameter. |
| */ |
| void notifyMessageReceived(@NonNull String viaTransactionId); |
| |
| /** |
| * The SIP session associated with the provided Call-ID is being closed and routing resources |
| * associated with the session are free to be released. Each SIP session may contain multiple |
| * dialogs due to SIP INVITE forking, so this method must be called after all SIP dialogs |
| * associated with the session has closed. |
| * <p> |
| * Calling this method is also mandatory for situations where the framework IMS stack is waiting |
| * for pending SIP sessions to be closed before it can perform a handover or apply a |
| * provisioning change. See {@link DelegateRegistrationState} for more information about |
| * the scenarios where this can occur. |
| * <p> |
| * This method will need to be called for each SIP session managed by this application when it |
| * is closed. |
| * @param callId The call-ID header value associated with the ongoing SIP Dialog that is |
| * closing. |
| */ |
| void cleanupSession(@NonNull String callId); |
| |
| /** |
| * Notify the SIP delegate that the SIP message has been received from |
| * {@link DelegateMessageCallback#onMessageReceived(SipMessage)}, however there was an error |
| * processing it. |
| * @param viaTransactionId Per RFC3261 Sec 8.1.1.7 the transaction ID associated with the Via |
| * branch parameter. |
| * @param reason The reason why the error occurred. |
| */ |
| void notifyMessageReceiveError(@NonNull String viaTransactionId, |
| @SipDelegateManager.MessageFailureReason int reason); |
| } |