core/server/src/metadata/topic.rs

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use crate::metadata::consumer_group::ConsumerGroupMeta;
use crate::metadata::partition::PartitionMeta;
use crate::metadata::{ConsumerGroupId, SLAB_SEGMENT_SIZE, TopicId};
use crate::streaming::stats::TopicStats;
use iggy_common::collections::SegmentedSlab;
use iggy_common::{CompressionAlgorithm, IggyExpiry, IggyTimestamp, MaxTopicSize};
use imbl::HashMap as ImHashMap;
use std::sync::Arc;
use std::sync::atomic::AtomicUsize;

/// Topic metadata stored in the shared snapshot.
#[derive(Clone, Debug)]
pub struct TopicMeta {
    pub id: TopicId,
    pub name: Arc<str>,
    pub created_at: IggyTimestamp,
    pub message_expiry: IggyExpiry,
    pub compression_algorithm: CompressionAlgorithm,
    pub max_topic_size: MaxTopicSize,
    pub replication_factor: u8,
    pub partitions_count: u32,
    pub stats: Arc<TopicStats>,
    pub partitions: SegmentedSlab<PartitionMeta, SLAB_SEGMENT_SIZE>,
    pub consumer_groups: SegmentedSlab<ConsumerGroupMeta, SLAB_SEGMENT_SIZE>,
    pub consumer_group_index: ImHashMap<Arc<str>, ConsumerGroupId>,
    pub partition_counter: Arc<AtomicUsize>,
}