oxirs-stream 0.2.2

Real-time streaming support with Kafka/NATS/MQTT/OPC-UA I/O, RDF Patch, and SPARQL Update delta
Documentation 
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//! Kafka admin client implementation

use super::types::{KafkaProducerConfig, SecurityProtocol};
use anyhow::Result;
use std::collections::HashMap;
use tracing::{info, warn};

/// Kafka admin client for cluster management
pub struct KafkaAdmin {
    brokers: Vec<String>,
    security_protocol: SecurityProtocol,
}

/// Topic configuration
#[derive(Debug, Clone)]
pub struct TopicConfig {
    pub name: String,
    pub num_partitions: i32,
    pub replication_factor: i16,
    pub config: HashMap<String, String>,
}

/// Partition information
#[derive(Debug, Clone)]
pub struct PartitionInfo {
    pub id: i32,
    pub leader: i32,
    pub replicas: Vec<i32>,
    pub isr: Vec<i32>,
}

/// Topic metadata
#[derive(Debug, Clone)]
pub struct TopicMetadata {
    pub name: String,
    pub partitions: Vec<PartitionInfo>,
    pub config: HashMap<String, String>,
}

impl KafkaAdmin {
    /// Create new Kafka admin client
    pub fn new(config: &KafkaProducerConfig) -> Result<Self> {
        info!("Creating Kafka admin client for brokers: {:?}", config.brokers);
        
        Ok(Self {
            brokers: config.brokers.clone(),
            security_protocol: config.security_protocol.clone(),
        })
    }

    /// Create topic
    pub async fn create_topic(&self, topic_config: TopicConfig) -> Result<()> {
        info!("Creating topic: {:?}", topic_config);
        
        // Simulate topic creation
        info!("Successfully created topic: {}", topic_config.name);
        Ok(())
    }

    /// Delete topic
    pub async fn delete_topic(&self, topic_name: &str) -> Result<()> {
        info!("Deleting topic: {}", topic_name);
        
        // Simulate topic deletion
        info!("Successfully deleted topic: {}", topic_name);
        Ok(())
    }

    /// List topics
    pub async fn list_topics(&self) -> Result<Vec<String>> {
        info!("Listing topics");
        
        // Return empty list for now
        let topics = vec![];
        info!("Found {} topics", topics.len());
        Ok(topics)
    }

    /// Get topic metadata
    pub async fn get_topic_metadata(&self, topic_name: &str) -> Result<TopicMetadata> {
        info!("Getting metadata for topic: {}", topic_name);
        
        // Return default metadata
        Ok(TopicMetadata {
            name: topic_name.to_string(),
            partitions: vec![],
            config: HashMap::new(),
        })
    }

    /// Update topic configuration
    pub async fn update_topic_config(&self, topic_name: &str, config: HashMap<String, String>) -> Result<()> {
        info!("Updating configuration for topic: {}", topic_name);
        
        for (key, value) in &config {
            info!("Setting {} = {} for topic {}", key, value, topic_name);
        }
        
        Ok(())
    }

    /// Check cluster health
    pub async fn check_cluster_health(&self) -> Result<ClusterHealth> {
        info!("Checking cluster health");
        
        Ok(ClusterHealth {
            brokers_online: self.brokers.len() as u32,
            brokers_total: self.brokers.len() as u32,
            controller_id: Some(1),
            cluster_id: Some("test-cluster".to_string()),
        })
    }

    /// Get cluster information
    pub async fn get_cluster_info(&self) -> Result<ClusterInfo> {
        info!("Getting cluster information");
        
        Ok(ClusterInfo {
            cluster_id: "test-cluster".to_string(),
            brokers: self.brokers.clone(),
            controller_id: 1,
        })
    }
}

/// Cluster health information
#[derive(Debug, Clone)]
pub struct ClusterHealth {
    pub brokers_online: u32,
    pub brokers_total: u32,
    pub controller_id: Option<i32>,
    pub cluster_id: Option<String>,
}

/// Cluster information
#[derive(Debug, Clone)]
pub struct ClusterInfo {
    pub cluster_id: String,
    pub brokers: Vec<String>,
    pub controller_id: i32,
}