public void Consumer_IncrementalAssign(string bootstrapServers)
{
LogToFile("start Consumer_Incremental_1");
var consumerConfig = new ConsumerConfig
{
GroupId = Guid.NewGuid().ToString(),
BootstrapServers = bootstrapServers,
EnableAutoCommit = false,
AutoOffsetReset = AutoOffsetReset.Error
};
using (var consumer = new ConsumerBuilder <byte[], byte[]>(consumerConfig).Build())
using (var topic1 = new TemporaryTopic(bootstrapServers, 1))
using (var topic2 = new TemporaryTopic(bootstrapServers, 1))
{
Util.ProduceNullStringMessages(bootstrapServers, topic1.Name, 1, 1);
Util.ProduceNullStringMessages(bootstrapServers, topic2.Name, 1, 1);
consumer.IncrementalAssign(new List <TopicPartitionOffset> {
new TopicPartitionOffset(topic1.Name, 0, Offset.Beginning)
});
var cr1 = consumer.Consume(TimeSpan.FromSeconds(10));
Assert.NotNull(cr1);
Assert.Equal(0, cr1.Offset);
Assert.Equal(topic1.Name, cr1.Topic);
Assert.Equal(0, (int)cr1.Partition);
consumer.Commit(cr1);
consumer.IncrementalAssign(new List <TopicPartitionOffset> {
new TopicPartitionOffset(topic2.Name, 0, Offset.Beginning)
});
var cr2 = consumer.Consume(TimeSpan.FromSeconds(10));
Assert.NotNull(cr2);
Assert.Equal(0, cr2.Offset);
Assert.Equal(topic2.Name, cr2.Topic);
Assert.Equal(0, (int)cr2.Partition);
consumer.IncrementalUnassign(new List <TopicPartition> {
new TopicPartition(topic1.Name, 0)
});
Util.ProduceNullStringMessages(bootstrapServers, topic1.Name, 2, 1);
var cr3 = consumer.Consume(TimeSpan.FromSeconds(2));
Assert.Null(cr3);
Util.ProduceNullStringMessages(bootstrapServers, topic2.Name, 3, 1);
var cr4 = consumer.Consume(TimeSpan.FromSeconds(10));
Assert.NotNull(cr4);
Assert.Equal(1, cr4.Offset);
Assert.Equal(topic2.Name, cr4.Topic);
Assert.Equal(0, (int)cr4.Partition);
Assert.Equal(3, cr4.Message.Value.Length);
consumer.IncrementalAssign(new List <TopicPartition> {
new TopicPartition(topic1.Name, 0)
});
var cr5 = consumer.Consume(TimeSpan.FromSeconds(10));
Assert.NotNull(cr5);
Assert.Equal(1, cr5.Offset);
Assert.Equal(topic1.Name, cr5.Topic);
Assert.Equal(0, (int)cr5.Partition);
var cr6 = consumer.Consume(TimeSpan.FromSeconds(1));
Assert.Null(cr6);
consumer.IncrementalUnassign(new List <TopicPartition> {
new TopicPartition(topic1.Name, 0)
});
consumer.Unassign();
}
Assert.Equal(0, Library.HandleCount);
LogToFile("end Consumer_IncrementalAssign");
}