| /* |
| * 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 DotPulsar.Abstractions; |
| using DotPulsar.Exceptions; |
| |
| public sealed class ReaderBuilder : IReaderBuilder |
| { |
| private readonly IPulsarClient _pulsarClient; |
| private string? _readerName; |
| private uint _messagePrefetchCount; |
| private bool _readCompacted; |
| private MessageId? _startMessageId; |
| private string? _topic; |
| |
| public ReaderBuilder(IPulsarClient pulsarClient) |
| { |
| _pulsarClient = pulsarClient; |
| _messagePrefetchCount = ReaderOptions.DefaultMessagePrefetchCount; |
| _readCompacted = ReaderOptions.DefaultReadCompacted; |
| } |
| |
| public IReaderBuilder ReaderName(string name) |
| { |
| _readerName = name; |
| return this; |
| } |
| |
| public IReaderBuilder MessagePrefetchCount(uint count) |
| { |
| _messagePrefetchCount = count; |
| return this; |
| } |
| |
| public IReaderBuilder ReadCompacted(bool readCompacted) |
| { |
| _readCompacted = readCompacted; |
| return this; |
| } |
| |
| public IReaderBuilder StartMessageId(MessageId messageId) |
| { |
| _startMessageId = messageId; |
| return this; |
| } |
| |
| public IReaderBuilder Topic(string topic) |
| { |
| _topic = topic; |
| return this; |
| } |
| |
| public IReader Create() |
| { |
| if (_startMessageId is null) |
| throw new ConfigurationException("StartMessageId may not be null"); |
| |
| if (string.IsNullOrEmpty(_topic)) |
| throw new ConfigurationException("Topic may not be null or empty"); |
| |
| var options = new ReaderOptions(_startMessageId, _topic!) |
| { |
| MessagePrefetchCount = _messagePrefetchCount, |
| ReadCompacted = _readCompacted, |
| ReaderName = _readerName |
| }; |
| |
| return _pulsarClient.CreateReader(options); |
| } |
| } |
| } |