| /* |
| * 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. |
| */ |
| |
| namespace DotPulsar.Internal |
| { |
| using Abstractions; |
| using PulsarApi; |
| using System; |
| using System.Collections.Generic; |
| using System.Threading; |
| using System.Threading.Tasks; |
| |
| public sealed class ConsumerChannelFactory<TMessage> : IConsumerChannelFactory<TMessage> |
| { |
| private readonly Guid _correlationId; |
| private readonly IRegisterEvent _eventRegister; |
| private readonly IConnectionPool _connectionPool; |
| private readonly CommandSubscribe _subscribe; |
| private readonly uint _messagePrefetchCount; |
| private readonly BatchHandler<TMessage> _batchHandler; |
| private readonly IMessageFactory<TMessage> _messageFactory; |
| private readonly IEnumerable<IDecompressorFactory> _decompressorFactories; |
| |
| public ConsumerChannelFactory( |
| Guid correlationId, |
| IRegisterEvent eventRegister, |
| IConnectionPool connectionPool, |
| CommandSubscribe subscribe, |
| uint messagePrefetchCount, |
| BatchHandler<TMessage> batchHandler, |
| IMessageFactory<TMessage> messageFactory, |
| IEnumerable<IDecompressorFactory> decompressorFactories) |
| { |
| _correlationId = correlationId; |
| _eventRegister = eventRegister; |
| _connectionPool = connectionPool; |
| _subscribe = subscribe; |
| _messagePrefetchCount = messagePrefetchCount; |
| _batchHandler = batchHandler; |
| _messageFactory = messageFactory; |
| _decompressorFactories = decompressorFactories; |
| } |
| |
| public async Task<IConsumerChannel<TMessage>> Create(CancellationToken cancellationToken) |
| { |
| var connection = await _connectionPool.FindConnectionForTopic(_subscribe.Topic, cancellationToken).ConfigureAwait(false); |
| var messageQueue = new AsyncQueue<MessagePackage>(); |
| var channel = new Channel(_correlationId, _eventRegister, messageQueue); |
| var response = await connection.Send(_subscribe, channel, cancellationToken).ConfigureAwait(false); |
| return new ConsumerChannel<TMessage>(response.ConsumerId, _messagePrefetchCount, messageQueue, connection, _batchHandler, _messageFactory, _decompressorFactories); |
| } |
| } |
| } |