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/*
* 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
{
using DotPulsar.Abstractions;
/// <summary>
/// The reader building options.
/// </summary>
public sealed class ReaderOptions<TMessage>
{
/// <summary>
/// The default message prefetch count.
/// </summary>
public static readonly uint DefaultMessagePrefetchCount = 1000;
/// <summary>
/// The default of whether to read compacted.
/// </summary>
public static readonly bool DefaultReadCompacted = false;
/// <summary>
/// Initializes a new instance using the specified startMessageId and topic.
/// </summary>
public ReaderOptions(MessageId startMessageId, string topic, ISchema<TMessage> schema)
{
MessagePrefetchCount = DefaultMessagePrefetchCount;
ReadCompacted = DefaultReadCompacted;
StartMessageId = startMessageId;
Topic = topic;
Schema = schema;
}
/// <summary>
/// Number of messages that will be prefetched. The default is 1000.
/// </summary>
public uint MessagePrefetchCount { get; set; }
/// <summary>
/// Whether to read from the compacted topic. The default is 'false'.
/// </summary>
public bool ReadCompacted { get; set; }
/// <summary>
/// Set the reader name. This is optional.
/// </summary>
public string? ReaderName { get; set; }
/// <summary>
/// Set the schema. This is required.
/// </summary>
public ISchema<TMessage> Schema { get; set; }
/// <summary>
/// The initial reader position is set to the specified message id. This is required.
/// </summary>
public MessageId StartMessageId { get; set; }
/// <summary>
/// Register a state changed handler. This is optional.
/// </summary>
public IHandleStateChanged<ReaderStateChanged>? StateChangedHandler { get; set; }
/// <summary>
/// Set the topic for this reader. This is required.
/// </summary>
public string Topic { get; set; }
}
}