modify crates name

This commit is contained in:
houseme
2025-06-06 11:14:36 +08:00
parent 8555d48ca2
commit 4199bf2ba4
35 changed files with 172 additions and 980 deletions
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use crate::config::kafka::KafkaConfig;
use crate::config::{default_queue_limit, DEFAULT_RETRY_INTERVAL, STORE_PREFIX};
use crate::{ChannelAdapter, ChannelAdapterType};
use crate::{Error, Event, QueueStore};
use async_trait::async_trait;
use rdkafka::error::KafkaError;
use rdkafka::producer::{FutureProducer, FutureRecord};
use rdkafka::types::RDKafkaErrorCode;
use rdkafka::util::Timeout;
use std::path::PathBuf;
use std::sync::Arc;
use std::time::Duration;
use tokio::time::sleep;
use ChannelAdapterType::Kafka;
/// Kafka adapter for sending events to a Kafka topic.
pub struct KafkaAdapter {
producer: FutureProducer,
store: Option<Arc<QueueStore<Event>>>,
config: KafkaConfig,
}
impl KafkaAdapter {
/// Creates a new Kafka adapter.
pub fn new(config: &KafkaConfig) -> Result<Self, Error> {
// Create a Kafka producer with the provided configuration.
let producer = rdkafka::config::ClientConfig::new()
.set("bootstrap.servers", &config.brokers)
.set("message.timeout.ms", config.timeout.to_string())
.create()
.map_err(|e| Error::msg(format!("Failed to create a Kafka producer: {}", e)))?;
// create a queue store if enabled
let store = if !config.common.queue_dir.is_empty() {
let store_path = PathBuf::from(&config.common.queue_dir).join(format!(
"{}-{}-{}",
STORE_PREFIX,
Kafka.as_str(),
config.common.identifier
));
let queue_limit = if config.queue_limit > 0 {
config.queue_limit
} else {
default_queue_limit()
};
let store = QueueStore::new(store_path, config.queue_limit, Some(".event".to_string()));
if let Err(e) = store.open() {
tracing::error!("Unable to open queue storage: {}", e);
None
} else {
Some(Arc::new(store))
}
} else {
None
};
Ok(Self { config, producer, store })
}
/// Handle backlog events in storage
pub async fn process_backlog(&self) -> Result<(), Error> {
if let Some(store) = &self.store {
let keys = store.list();
for key in keys {
match store.get_multiple(&key) {
Ok(events) => {
for event in events {
// Use the retry interval to send events
if let Err(e) = self.send_with_retry(&event).await {
tracing::error!("Processing of backlog events failed: {}", e);
// If it still fails, we remain in the queue
break;
}
}
// The event is deleted after it has been successfully processed
if let Err(e) = store.del(&key) {
tracing::error!("Failed to delete a handled event: {}", e);
}
}
Err(e) => {
tracing::error!("Fetch events from the queue failed: {}", e);
// If the event cannot be read, it may be corrupted, delete it
if let Err(del_err) = store.del(&key) {
tracing::error!("Failed to delete a corrupted event: {}", del_err);
}
}
}
}
}
Ok(())
}
/// Sends an event to the Kafka topic with retry logic.
async fn send_with_retry(&self, event: &Event) -> Result<(), Error> {
let retry_interval = match self.config.retry_interval {
Some(t) => Duration::from_secs(t),
None => Duration::from_secs(DEFAULT_RETRY_INTERVAL), // Default to 3 seconds if not set
};
for attempt in 0..self.max_retries {
match self.send_request(event).await {
Ok(_) => return Ok(()),
Err((KafkaError::MessageProduction(RDKafkaErrorCode::QueueFull), _)) => {
tracing::warn!("Kafka attempt {} failed: Queue full. Retrying...", attempt + 1);
// sleep(Duration::from_secs(2u64.pow(attempt))).await;
sleep(retry_interval).await;
}
Err((e, _)) => {
tracing::error!("Kafka send error: {}", e);
return Err(Error::Kafka(e));
}
}
}
Err(Error::Custom("Exceeded maximum retry attempts for Kafka message".to_string()))
}
/// Send a single Kafka message
async fn send_request(&self, event: &Event) -> Result<(), Error> {
// Serialize events
let payload = serde_json::to_string(event).map_err(|e| Error::Custom(format!("Serialization event failed: {}", e)))?;
// Create a Kafka record
let record = FutureRecord::to(&self.config.topic).payload(&payload).key(&event.id); // Use the event ID as the key
// Send to Kafka
let delivery_status = self
.producer
.send(record, Duration::from_millis(self.config.timeout))
.await
.map_err(|(e, _)| Error::Custom(format!("Failed to send to Kafka: {}", e)))?;
// Check delivery status
if let Some((err, _)) = delivery_status {
return Err(Error::Kafka(err));
}
Ok(())
}
/// Save the event to the queue
async fn save_to_queue(&self, event: &Event) -> Result<(), Error> {
if let Some(store) = &self.store {
store
.put(event.clone())
.map_err(|e| Error::Custom(format!("Saving events to queue failed: {}", e)))?;
}
Ok(())
}
}
#[async_trait]
impl ChannelAdapter for KafkaAdapter {
fn name(&self) -> String {
ChannelAdapterType::Kafka.to_string()
}
async fn send(&self, event: &Event) -> Result<(), Error> {
// Try to deal with the backlog of events first
let _ = self.process_backlog().await;
// An attempt was made to send the current event
match self.send_with_retry(event).await {
Ok(_) => Ok(()),
Err(e) => {
// If the send fails and the queue is enabled, save to the queue
if let Some(_) = &self.store {
tracing::warn!("Failed to send events to Kafka and saved to a queue: {}", e);
self.save_to_queue(event).await?;
return Ok(());
}
Err(e)
}
}
}
}
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use crate::config::adapter::AdapterConfig;
use crate::{Error, Event};
use async_trait::async_trait;
use std::sync::Arc;
#[cfg(all(feature = "kafka", target_os = "linux"))]
pub(crate) mod kafka;
#[cfg(feature = "mqtt")]
pub(crate) mod mqtt;
#[cfg(feature = "webhook")]
pub(crate) mod webhook;
#[allow(dead_code)]
const NOTIFY_KAFKA_SUB_SYS: &str = "notify_kafka";
#[allow(dead_code)]
const NOTIFY_MQTT_SUB_SYS: &str = "notify_mqtt";
#[allow(dead_code)]
const NOTIFY_MY_SQL_SUB_SYS: &str = "notify_mysql";
#[allow(dead_code)]
const NOTIFY_NATS_SUB_SYS: &str = "notify_nats";
#[allow(dead_code)]
const NOTIFY_NSQ_SUB_SYS: &str = "notify_nsq";
#[allow(dead_code)]
const NOTIFY_ES_SUB_SYS: &str = "notify_elasticsearch";
#[allow(dead_code)]
const NOTIFY_AMQP_SUB_SYS: &str = "notify_amqp";
#[allow(dead_code)]
const NOTIFY_POSTGRES_SUB_SYS: &str = "notify_postgres";
#[allow(dead_code)]
const NOTIFY_REDIS_SUB_SYS: &str = "notify_redis";
const NOTIFY_WEBHOOK_SUB_SYS: &str = "notify_webhook";
/// The `ChannelAdapterType` enum represents the different types of channel adapters.
///
/// It is used to identify the type of adapter being used in the system.
///
/// # Variants
///
/// - `Webhook`: Represents a webhook adapter.
/// - `Kafka`: Represents a Kafka adapter.
/// - `Mqtt`: Represents an MQTT adapter.
///
/// # Example
///
/// ```
/// use rustfs_event::ChannelAdapterType;
///
/// let adapter_type = ChannelAdapterType::Webhook;
/// match adapter_type {
/// ChannelAdapterType::Webhook => println!("Using webhook adapter"),
/// ChannelAdapterType::Kafka => println!("Using Kafka adapter"),
/// ChannelAdapterType::Mqtt => println!("Using MQTT adapter"),
/// }
pub enum ChannelAdapterType {
Webhook,
Kafka,
Mqtt,
}
impl ChannelAdapterType {
pub fn as_str(&self) -> &'static str {
match self {
ChannelAdapterType::Webhook => "webhook",
ChannelAdapterType::Kafka => "kafka",
ChannelAdapterType::Mqtt => "mqtt",
}
}
}
impl std::fmt::Display for ChannelAdapterType {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
ChannelAdapterType::Webhook => write!(f, "webhook"),
ChannelAdapterType::Kafka => write!(f, "kafka"),
ChannelAdapterType::Mqtt => write!(f, "mqtt"),
}
}
}
/// The `ChannelAdapter` trait defines the interface for all channel adapters.
#[async_trait]
pub trait ChannelAdapter: Send + Sync + 'static {
/// Sends an event to the channel.
fn name(&self) -> String;
/// Sends an event to the channel.
async fn send(&self, event: &Event) -> Result<(), Error>;
}
/// Creates channel adapters based on the provided configuration.
pub fn create_adapters(configs: Vec<AdapterConfig>) -> Result<Vec<Arc<dyn ChannelAdapter>>, Error> {
let mut adapters: Vec<Arc<dyn ChannelAdapter>> = Vec::new();
for config in configs {
match config {
#[cfg(feature = "webhook")]
AdapterConfig::Webhook(webhook_config) => {
webhook_config.validate().map_err(Error::ConfigError)?;
adapters.push(Arc::new(webhook::WebhookAdapter::new(webhook_config.clone())));
}
#[cfg(all(feature = "kafka", target_os = "linux"))]
AdapterConfig::Kafka(kafka_config) => {
adapters.push(Arc::new(kafka::KafkaAdapter::new(kafka_config)?));
}
#[cfg(feature = "mqtt")]
AdapterConfig::Mqtt(mqtt_config) => {
let (mqtt, mut event_loop) = mqtt::MqttAdapter::new(mqtt_config);
tokio::spawn(async move { while event_loop.poll().await.is_ok() {} });
adapters.push(Arc::new(mqtt));
}
#[cfg(not(feature = "webhook"))]
AdapterConfig::Webhook(_) => return Err(Error::FeatureDisabled("webhook")),
#[cfg(any(not(feature = "kafka"), not(target_os = "linux")))]
AdapterConfig::Kafka(_) => return Err(Error::FeatureDisabled("kafka")),
#[cfg(not(feature = "mqtt"))]
AdapterConfig::Mqtt(_) => return Err(Error::FeatureDisabled("mqtt")),
}
}
Ok(adapters)
}
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use crate::config::mqtt::MqttConfig;
use crate::{ChannelAdapter, ChannelAdapterType};
use crate::{Error, Event};
use async_trait::async_trait;
use rumqttc::{AsyncClient, MqttOptions, QoS};
use std::time::Duration;
use tokio::time::sleep;
/// MQTT adapter for sending events to an MQTT broker.
pub struct MqttAdapter {
client: AsyncClient,
topic: String,
max_retries: u32,
}
impl MqttAdapter {
/// Creates a new MQTT adapter.
pub fn new(config: &MqttConfig) -> (Self, rumqttc::EventLoop) {
let mqtt_options = MqttOptions::new(&config.client_id, &config.broker, config.port);
let (client, event_loop) = rumqttc::AsyncClient::new(mqtt_options, 10);
(
Self {
client,
topic: config.topic.clone(),
max_retries: config.max_retries,
},
event_loop,
)
}
}
#[async_trait]
impl ChannelAdapter for MqttAdapter {
fn name(&self) -> String {
ChannelAdapterType::Mqtt.to_string()
}
async fn send(&self, event: &Event) -> Result<(), Error> {
let payload = serde_json::to_string(event).map_err(Error::Serde)?;
let mut attempt = 0;
loop {
match self
.client
.publish(&self.topic, QoS::AtLeastOnce, false, payload.clone())
.await
{
Ok(()) => return Ok(()),
Err(e) if attempt < self.max_retries => {
attempt += 1;
tracing::warn!("MQTT attempt {} failed: {}. Retrying...", attempt, e);
sleep(Duration::from_secs(2u64.pow(attempt))).await;
}
Err(e) => return Err(Error::Mqtt(e)),
}
}
}
}
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use crate::config::webhook::WebhookConfig;
use crate::config::STORE_PREFIX;
use crate::store::queue::Store;
use crate::{ChannelAdapter, ChannelAdapterType};
use crate::{Error, QueueStore};
use crate::{Event, DEFAULT_RETRY_INTERVAL};
use async_trait::async_trait;
use reqwest::header::{HeaderMap, HeaderName, HeaderValue};
use reqwest::{self, Client, Identity, RequestBuilder};
use serde_json::to_string;
use std::fs;
use std::path::PathBuf;
use std::sync::Arc;
use std::time::Duration;
use tokio::time::sleep;
use ChannelAdapterType::Webhook;
// Webhook constants
pub const WEBHOOK_ENDPOINT: &str = "endpoint";
pub const WEBHOOK_AUTH_TOKEN: &str = "auth_token";
pub const WEBHOOK_QUEUE_DIR: &str = "queue_dir";
pub const WEBHOOK_QUEUE_LIMIT: &str = "queue_limit";
pub const WEBHOOK_CLIENT_CERT: &str = "client_cert";
pub const WEBHOOK_CLIENT_KEY: &str = "client_key";
pub const ENV_WEBHOOK_ENABLE: &str = "RUSTFS_NOTIFY_WEBHOOK_ENABLE";
pub const ENV_WEBHOOK_ENDPOINT: &str = "RUSTFS_NOTIFY_WEBHOOK_ENDPOINT";
pub const ENV_WEBHOOK_AUTH_TOKEN: &str = "RUSTFS_NOTIFY_WEBHOOK_AUTH_TOKEN";
pub const ENV_WEBHOOK_QUEUE_DIR: &str = "RUSTFS_NOTIFY_WEBHOOK_QUEUE_DIR";
pub const ENV_WEBHOOK_QUEUE_LIMIT: &str = "RUSTFS_NOTIFY_WEBHOOK_QUEUE_LIMIT";
pub const ENV_WEBHOOK_CLIENT_CERT: &str = "RUSTFS_NOTIFY_WEBHOOK_CLIENT_CERT";
pub const ENV_WEBHOOK_CLIENT_KEY: &str = "RUSTFS_NOTIFY_WEBHOOK_CLIENT_KEY";
/// Webhook adapter for sending events to a webhook endpoint.
pub struct WebhookAdapter {
/// Configuration information
config: WebhookConfig,
/// Event storage queues
store: Option<Arc<QueueStore<Event>>>,
/// HTTP client
client: Client,
}
impl WebhookAdapter {
/// Creates a new Webhook adapter.
pub fn new(config: WebhookConfig) -> Self {
let mut builder = Client::builder();
if config.timeout.is_some() {
// Set the timeout for the client
match config.timeout {
Some(t) => builder = builder.timeout(Duration::from_secs(t)),
None => tracing::warn!("Timeout is not set, using default timeout"),
}
}
let client = if let (Some(cert_path), Some(key_path)) = (&config.client_cert, &config.client_key) {
let cert_path = PathBuf::from(cert_path);
let key_path = PathBuf::from(key_path);
// Check if the certificate file exists
if !cert_path.exists() || !key_path.exists() {
tracing::warn!("Certificate files not found, falling back to default client");
builder.build()
} else {
// Try to read and load the certificate
match (fs::read(&cert_path), fs::read(&key_path)) {
(Ok(cert_data), Ok(key_data)) => {
// Create an identity
let mut pem_data = cert_data;
pem_data.extend_from_slice(&key_data);
match Identity::from_pem(&pem_data) {
Ok(identity) => {
tracing::info!("Successfully loaded client certificate");
builder.identity(identity).build()
}
Err(e) => {
tracing::warn!("Failed to create identity from PEM: {}, falling back to default client", e);
builder.build()
}
}
}
_ => {
tracing::warn!("Failed to read certificate files, falling back to default client");
builder.build()
}
}
}
} else {
builder.build()
}
.unwrap_or_else(|e| {
tracing::error!("Failed to create HTTP client: {}", e);
reqwest::Client::new()
});
// create a queue store if enabled
let store = if !config.common.queue_dir.len() > 0 {
let store_path = PathBuf::from(&config.common.queue_dir).join(format!(
"{}-{}-{}",
STORE_PREFIX,
Webhook.as_str(),
config.common.identifier
));
let queue_limit = if config.common.queue_limit > 0 {
config.common.queue_limit
} else {
crate::config::default_queue_limit()
};
let name = config.common.identifier.clone();
let store = QueueStore::new(store_path, name, queue_limit, Some(".event".to_string()));
if let Err(e) = store.open() {
tracing::error!("Unable to open queue storage: {}", e);
None
} else {
Some(Arc::new(store))
}
} else {
None
};
Self { config, store, client }
}
/// Handle backlog events in storage
pub async fn process_backlog(&self) -> Result<(), Error> {
if let Some(store) = &self.store {
let keys = store.list();
for key in keys {
match store.get_multiple(&key) {
Ok(events) => {
for event in events {
if let Err(e) = self.send_with_retry(&event).await {
tracing::error!("Processing of backlog events failed: {}", e);
// If it still fails, we remain in the queue
break;
}
}
// Deleted after successful processing
if let Err(e) = store.del(&key) {
tracing::error!("Failed to delete a handled event: {}", e);
}
}
Err(e) => {
tracing::error!("Failed to read events from storage: {}", e);
// delete the broken entries
// If the event cannot be read, it may be corrupted, delete it
if let Err(del_err) = store.del(&key) {
tracing::error!("Failed to delete a corrupted event: {}", del_err);
}
}
}
}
}
Ok(())
}
///Send events to the webhook endpoint with retry logic
async fn send_with_retry(&self, event: &Event) -> Result<(), Error> {
let retry_interval = match self.config.retry_interval {
Some(t) => Duration::from_secs(t),
None => Duration::from_secs(DEFAULT_RETRY_INTERVAL), // Default to 3 seconds if not set
};
let mut attempts = 0;
loop {
attempts += 1;
match self.send_request(event).await {
Ok(_) => return Ok(()),
Err(e) => {
if attempts <= self.config.max_retries {
tracing::warn!("Send to webhook fails and will be retried after 3 seconds:{}", e);
sleep(retry_interval).await;
} else if let Some(store) = &self.store {
// store in a queue for later processing
tracing::warn!("The maximum number of retries is reached, and the event is stored in a queue:{}", e);
if let Err(store_err) = store.put(event.clone()) {
tracing::error!("Events cannot be stored to a queue:{}", store_err);
}
return Err(e);
} else {
return Err(e);
}
}
}
}
}
/// Send a single HTTP request
async fn send_request(&self, event: &Event) -> Result<(), Error> {
// Send a request
let response = self
.build_request(event)
.send()
.await
.map_err(|e| Error::Custom(format!("Sending a webhook request failed:{}", e)))?;
// Check the response status
if !response.status().is_success() {
let status = response.status();
let body = response
.text()
.await
.unwrap_or_else(|_| "Unable to read response body".to_string());
return Err(Error::Custom(format!("Webhook request failed, status code:{},response:{}", status, body)));
}
Ok(())
}
/// Builds the request to send the event.
fn build_request(&self, event: &Event) -> RequestBuilder {
let mut request = self
.client
.post(&self.config.endpoint)
.json(event)
.header("Content-Type", "application/json");
if let Some(token) = &self.config.auth_token {
let tokens: Vec<&str> = token.split_whitespace().collect();
match tokens.len() {
2 => request = request.header("Authorization", token),
1 => request = request.header("Authorization", format!("Bearer {}", token)),
_ => tracing::warn!("Invalid auth token format, skipping Authorization header"),
}
}
if let Some(headers) = &self.config.custom_headers {
let mut header_map = HeaderMap::new();
for (key, value) in headers {
if let (Ok(name), Ok(val)) = (HeaderName::from_bytes(key.as_bytes()), HeaderValue::from_str(value)) {
header_map.insert(name, val);
}
}
request = request.headers(header_map);
}
request
}
/// Save the event to the queue
async fn save_to_queue(&self, event: &Event) -> Result<(), Error> {
if let Some(store) = &self.store {
store
.put(event.clone())
.map_err(|e| Error::Custom(format!("Saving events to queue failed: {}", e)))?;
}
Ok(())
}
}
#[async_trait]
impl ChannelAdapter for WebhookAdapter {
fn name(&self) -> String {
Webhook.to_string()
}
async fn send(&self, event: &Event) -> Result<(), Error> {
// Deal with the backlog of events first
let _ = self.process_backlog().await;
// Send the current event
match self.send_with_retry(event).await {
Ok(_) => Ok(()),
Err(e) => {
// If the send fails and the queue is enabled, save to the queue
if let Some(_) = &self.store {
tracing::warn!("Failed to send the event and saved to the queue: {}", e);
self.save_to_queue(event).await?;
return Ok(());
}
Err(e)
}
}
}
}
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use crate::config::kafka::KafkaConfig;
use crate::config::mqtt::MqttConfig;
use crate::config::webhook::WebhookConfig;
use crate::config::{default_queue_dir, default_queue_limit};
use serde::{Deserialize, Serialize};
/// Add a common field for the adapter configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AdapterCommon {
/// Adapter identifier for unique identification
pub identifier: String,
/// Adapter description information
pub comment: String,
/// Whether to enable this adapter
#[serde(default)]
pub enable: bool,
#[serde(default = "default_queue_dir")]
pub queue_dir: String,
#[serde(default = "default_queue_limit")]
pub queue_limit: u64,
}
impl Default for AdapterCommon {
fn default() -> Self {
Self {
identifier: String::new(),
comment: String::new(),
enable: false,
queue_dir: default_queue_dir(),
queue_limit: default_queue_limit(),
}
}
}
/// Configuration for the adapter.
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "type")]
pub enum AdapterConfig {
Webhook(WebhookConfig),
Kafka(KafkaConfig),
Mqtt(MqttConfig),
}
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use crate::config::adapter::AdapterCommon;
use crate::config::{default_queue_dir, default_queue_limit};
use serde::{Deserialize, Serialize};
/// Configuration for the Kafka adapter.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct KafkaConfig {
#[serde(flatten)]
pub common: AdapterCommon,
pub brokers: String,
pub topic: String,
pub max_retries: u32,
pub timeout: u64,
}
impl Default for KafkaConfig {
fn default() -> Self {
Self {
common: AdapterCommon::default(),
brokers: String::new(),
topic: String::new(),
max_retries: 3,
timeout: 5000,
}
}
}
impl KafkaConfig {
/// Create a new Kafka configuration
pub fn new(identifier: impl Into<String>, brokers: impl Into<String>, topic: impl Into<String>) -> Self {
Self {
common: AdapterCommon {
identifier: identifier.into(),
comment: String::new(),
enable: true,
queue_dir: default_queue_dir(),
queue_limit: default_queue_limit(),
},
brokers: brokers.into(),
topic: topic.into(),
..Default::default()
}
}
}
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use std::env;
pub mod adapter;
pub mod kafka;
pub mod mqtt;
pub mod notifier;
pub mod webhook;
/// The default configuration file name
const DEFAULT_CONFIG_FILE: &str = "event";
/// The prefix for the configuration file
pub const STORE_PREFIX: &str = "rustfs";
/// The default retry interval for the webhook adapter
pub const DEFAULT_RETRY_INTERVAL: u64 = 3;
/// The default maximum retry count for the webhook adapter
pub const DEFAULT_MAX_RETRIES: u32 = 3;
/// The default notification queue limit
pub const DEFAULT_NOTIFY_QUEUE_LIMIT: u64 = 10000;
/// Provide temporary directories as default storage paths
pub(crate) fn default_queue_dir() -> String {
env::var("EVENT_QUEUE_DIR").unwrap_or_else(|e| {
tracing::info!("Failed to get `EVENT_QUEUE_DIR` failed err: {}", e.to_string());
env::temp_dir().join(DEFAULT_CONFIG_FILE).to_string_lossy().to_string()
})
}
/// Provides the recommended default channel capacity for high concurrency systems
pub(crate) fn default_queue_limit() -> u64 {
env::var("EVENT_CHANNEL_CAPACITY")
.unwrap_or_else(|_| DEFAULT_NOTIFY_QUEUE_LIMIT.to_string())
.parse()
.unwrap_or(DEFAULT_NOTIFY_QUEUE_LIMIT) // Default to 10000 if parsing fails
}
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use crate::config::adapter::AdapterCommon;
use crate::config::{default_queue_dir, default_queue_limit};
use serde::{Deserialize, Serialize};
/// Configuration for the MQTT adapter.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MqttConfig {
#[serde(flatten)]
pub common: AdapterCommon,
pub broker: String,
pub port: u16,
pub client_id: String,
pub topic: String,
pub max_retries: u32,
}
impl Default for MqttConfig {
fn default() -> Self {
Self {
common: AdapterCommon::default(),
broker: String::new(),
port: 1883,
client_id: String::new(),
topic: String::new(),
max_retries: 3,
}
}
}
impl MqttConfig {
/// Create a new MQTT configuration
pub fn new(identifier: impl Into<String>, broker: impl Into<String>, topic: impl Into<String>) -> Self {
Self {
common: AdapterCommon {
identifier: identifier.into(),
comment: String::new(),
enable: true,
queue_dir: default_queue_dir(),
queue_limit: default_queue_limit(),
},
broker: broker.into(),
topic: topic.into(),
..Default::default()
}
}
}
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use crate::config::{adapter::AdapterConfig, kafka::KafkaConfig, mqtt::MqttConfig, webhook::WebhookConfig};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
/// Event Notifier Configuration
/// This struct contains the configuration for the event notifier system,
#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct EventNotifierConfig {
/// A collection of webhook configurations, with the key being a unique identifier
#[serde(default)]
pub webhook: HashMap<String, WebhookConfig>,
/// A collection of Kafka configurations, with the key being a unique identifier
#[serde(default)]
pub kafka: HashMap<String, KafkaConfig>,
///MQTT configuration collection, with the key being a unique identifier
#[serde(default)]
pub mqtt: HashMap<String, MqttConfig>,
}
impl EventNotifierConfig {
/// Create a new default configuration
pub fn new() -> Self {
Self::default()
}
/// Load the configuration from the file
pub fn event_load_config(_config_dir: Option<String>) -> EventNotifierConfig {
// The existing implementation remains the same, but returns EventNotifierConfig
// ...
Self::default()
}
/// Deserialization configuration
pub fn unmarshal(data: &[u8]) -> common::error::Result<EventNotifierConfig> {
let m: EventNotifierConfig = serde_json::from_slice(data)?;
Ok(m)
}
/// Serialization configuration
pub fn marshal(&self) -> common::error::Result<Vec<u8>> {
let data = serde_json::to_vec(&self)?;
Ok(data)
}
/// Convert this configuration to a list of adapter configurations
pub fn to_adapter_configs(&self) -> Vec<AdapterConfig> {
let mut adapters = Vec::new();
// Add all enabled webhook configurations
for webhook in self.webhook.values() {
if webhook.common.enable {
adapters.push(AdapterConfig::Webhook(webhook.clone()));
}
}
// Add all enabled Kafka configurations
for kafka in self.kafka.values() {
if kafka.common.enable {
adapters.push(AdapterConfig::Kafka(kafka.clone()));
}
}
// Add all enabled MQTT configurations
for mqtt in self.mqtt.values() {
if mqtt.common.enable {
adapters.push(AdapterConfig::Mqtt(mqtt.clone()));
}
}
adapters
}
}
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use crate::config::adapter::AdapterCommon;
use crate::config::{default_queue_dir, default_queue_limit};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::path::Path;
use tracing::info;
/// Configuration for the webhook adapter.
#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct WebhookConfig {
#[serde(flatten)]
pub common: AdapterCommon,
pub endpoint: String,
pub auth_token: Option<String>,
pub custom_headers: Option<HashMap<String, String>>,
pub max_retries: u32,
pub retry_interval: Option<u64>,
pub timeout: Option<u64>,
#[serde(default)]
pub client_cert: Option<String>,
#[serde(default)]
pub client_key: Option<String>,
}
impl WebhookConfig {
/// validate the configuration for the webhook adapter
///
/// # Returns
///
/// - `Result<(), String>`: Ok if the configuration is valid, Err with a message if invalid.
///
/// # Errors
/// - Returns an error if the configuration is invalid, such as empty endpoint, unreasonable timeout, or mismatched certificate and key.
pub fn validate(&self) -> Result<(), String> {
// If not enabled, the other fields are not validated
if !self.common.enable {
return Ok(());
}
// verify that endpoint cannot be empty
if self.endpoint.trim().is_empty() {
return Err("Webhook endpoint cannot be empty".to_string());
}
// verification timeout must be reasonable
if self.timeout.is_some() {
match self.timeout {
Some(timeout) if timeout > 0 => {
info!("Webhook timeout is set to {}", timeout);
}
_ => return Err("Webhook timeout must be greater than 0".to_string()),
}
}
// Verify that the maximum number of retry is reasonable
if self.max_retries > 10 {
return Err("Maximum retry count cannot exceed 10".to_string());
}
// Verify the queue directory path
if !self.common.queue_dir.is_empty() && !Path::new(&self.common.queue_dir).is_absolute() {
return Err("Queue directory path should be absolute".to_string());
}
// The authentication certificate and key must appear in pairs
if (self.client_cert.is_some() && self.client_key.is_none()) || (self.client_cert.is_none() && self.client_key.is_some())
{
return Err("Certificate and key must be specified as a pair".to_string());
}
Ok(())
}
/// Create a new webhook configuration
pub fn new(identifier: impl Into<String>, endpoint: impl Into<String>) -> Self {
Self {
common: AdapterCommon {
identifier: identifier.into(),
comment: String::new(),
enable: true,
queue_dir: default_queue_dir(),
queue_limit: default_queue_limit(),
},
endpoint: endpoint.into(),
..Default::default()
}
}
}
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use config::ConfigError;
use thiserror::Error;
use tokio::sync::mpsc::error;
use tokio::task::JoinError;
/// The `Error` enum represents all possible errors that can occur in the application.
/// It implements the `std::error::Error` trait and provides a way to convert various error types into a single error type.
#[derive(Error, Debug)]
pub enum Error {
#[error("Join error: {0}")]
JoinError(#[from] JoinError),
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
#[error("Serialization error: {0}")]
Serde(#[from] serde_json::Error),
#[error("HTTP error: {0}")]
Http(#[from] reqwest::Error),
#[cfg(all(feature = "kafka", target_os = "linux"))]
#[error("Kafka error: {0}")]
Kafka(#[from] rdkafka::error::KafkaError),
#[cfg(feature = "mqtt")]
#[error("MQTT error: {0}")]
Mqtt(#[from] rumqttc::ClientError),
#[error("Channel send error: {0}")]
ChannelSend(#[from] Box<error::SendError<crate::event::Event>>),
#[error("Feature disabled: {0}")]
FeatureDisabled(&'static str),
#[error("Event bus already started")]
EventBusStarted,
#[error("necessary fields are missing:{0}")]
MissingField(&'static str),
#[error("field verification failed:{0}")]
ValidationError(&'static str),
#[error("Custom error: {0}")]
Custom(String),
#[error("Configuration error: {0}")]
ConfigError(String),
#[error("Configuration loading error: {0}")]
Config(#[from] ConfigError),
#[error("create adapter failed error: {0}")]
AdapterCreationFailed(String),
}
impl Error {
pub fn custom(msg: &str) -> Error {
Self::Custom(msg.to_string())
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::error::Error as StdError;
use std::io;
use tokio::sync::mpsc;
#[test]
fn test_error_display() {
// Test error message display
let custom_error = Error::custom("test message");
assert_eq!(custom_error.to_string(), "Custom error: test message");
let feature_error = Error::FeatureDisabled("test feature");
assert_eq!(feature_error.to_string(), "Feature disabled: test feature");
let event_bus_error = Error::EventBusStarted;
assert_eq!(event_bus_error.to_string(), "Event bus already started");
let missing_field_error = Error::MissingField("required_field");
assert_eq!(missing_field_error.to_string(), "necessary fields are missing:required_field");
let validation_error = Error::ValidationError("invalid format");
assert_eq!(validation_error.to_string(), "field verification failed:invalid format");
let config_error = Error::ConfigError("invalid config".to_string());
assert_eq!(config_error.to_string(), "Configuration error: invalid config");
}
#[test]
fn test_error_debug() {
// Test Debug trait implementation
let custom_error = Error::custom("debug test");
let debug_str = format!("{:?}", custom_error);
assert!(debug_str.contains("Custom"));
assert!(debug_str.contains("debug test"));
let feature_error = Error::FeatureDisabled("debug feature");
let debug_str = format!("{:?}", feature_error);
assert!(debug_str.contains("FeatureDisabled"));
assert!(debug_str.contains("debug feature"));
}
#[test]
fn test_custom_error_creation() {
// Test custom error creation
let error = Error::custom("test custom error");
match error {
Error::Custom(msg) => assert_eq!(msg, "test custom error"),
_ => panic!("Expected Custom error variant"),
}
// Test empty string
let empty_error = Error::custom("");
match empty_error {
Error::Custom(msg) => assert_eq!(msg, ""),
_ => panic!("Expected Custom error variant"),
}
// Test special characters
let special_error = Error::custom("Test Chinese 中文 & special chars: !@#$%");
match special_error {
Error::Custom(msg) => assert_eq!(msg, "Test Chinese 中文 & special chars: !@#$%"),
_ => panic!("Expected Custom error variant"),
}
}
#[test]
fn test_io_error_conversion() {
// Test IO error conversion
let io_error = io::Error::new(io::ErrorKind::NotFound, "file not found");
let converted_error: Error = io_error.into();
match converted_error {
Error::Io(err) => {
assert_eq!(err.kind(), io::ErrorKind::NotFound);
assert_eq!(err.to_string(), "file not found");
}
_ => panic!("Expected Io error variant"),
}
// Test different types of IO errors
let permission_error = io::Error::new(io::ErrorKind::PermissionDenied, "access denied");
let converted: Error = permission_error.into();
assert!(matches!(converted, Error::Io(_)));
}
#[test]
fn test_serde_error_conversion() {
// Test serialization error conversion
let invalid_json = r#"{"invalid": json}"#;
let serde_error = serde_json::from_str::<serde_json::Value>(invalid_json).unwrap_err();
let converted_error: Error = serde_error.into();
match converted_error {
Error::Serde(_) => {
// Verify error type is correct
assert!(converted_error.to_string().contains("Serialization error"));
}
_ => panic!("Expected Serde error variant"),
}
}
#[test]
fn test_config_error_conversion() {
// Test configuration error conversion
let config_error = ConfigError::Message("invalid configuration".to_string());
let converted_error: Error = config_error.into();
match converted_error {
Error::Config(_) => {
assert!(converted_error.to_string().contains("Configuration loading error"));
}
_ => panic!("Expected Config error variant"),
}
}
#[tokio::test]
async fn test_channel_send_error_conversion() {
// Test channel send error conversion
let (tx, rx) = mpsc::channel::<crate::event::Event>(1);
drop(rx); // Close receiver
// Create a test event
use crate::event::{Bucket, Identity, Metadata, Name, Object, Source};
use std::collections::HashMap;
let identity = Identity::new("test-user".to_string());
let bucket = Bucket::new("test-bucket".to_string(), identity.clone(), "arn:aws:s3:::test-bucket".to_string());
let object = Object::new(
"test-key".to_string(),
Some(1024),
Some("etag123".to_string()),
Some("text/plain".to_string()),
Some(HashMap::new()),
None,
"sequencer123".to_string(),
);
let metadata = Metadata::create("1.0".to_string(), "config1".to_string(), bucket, object);
let source = Source::new("localhost".to_string(), "8080".to_string(), "test-agent".to_string());
let test_event = crate::event::Event::builder()
.event_name(Name::ObjectCreatedPut)
.s3(metadata)
.source(source)
.build()
.unwrap();
let send_result = tx.send(test_event).await;
assert!(send_result.is_err());
let send_error = send_result.unwrap_err();
let boxed_error = Box::new(send_error);
let converted_error: Error = boxed_error.into();
match converted_error {
Error::ChannelSend(_) => {
assert!(converted_error.to_string().contains("Channel send error"));
}
_ => panic!("Expected ChannelSend error variant"),
}
}
#[test]
fn test_error_source_chain() {
// 测试错误源链
let io_error = io::Error::new(io::ErrorKind::InvalidData, "invalid data");
let converted_error: Error = io_error.into();
// 验证错误源
assert!(converted_error.source().is_some());
let source = converted_error.source().unwrap();
assert_eq!(source.to_string(), "invalid data");
}
#[test]
fn test_error_variants_exhaustive() {
// 测试所有错误变体的创建
let errors = vec![
Error::FeatureDisabled("test"),
Error::EventBusStarted,
Error::MissingField("field"),
Error::ValidationError("validation"),
Error::Custom("custom".to_string()),
Error::ConfigError("config".to_string()),
];
for error in errors {
// 验证每个错误都能正确显示
let error_str = error.to_string();
assert!(!error_str.is_empty());
// 验证每个错误都能正确调试
let debug_str = format!("{:?}", error);
assert!(!debug_str.is_empty());
}
}
#[test]
fn test_error_equality_and_matching() {
// 测试错误的模式匹配
let custom_error = Error::custom("test");
match custom_error {
Error::Custom(msg) => assert_eq!(msg, "test"),
_ => panic!("Pattern matching failed"),
}
let feature_error = Error::FeatureDisabled("feature");
match feature_error {
Error::FeatureDisabled(feature) => assert_eq!(feature, "feature"),
_ => panic!("Pattern matching failed"),
}
let event_bus_error = Error::EventBusStarted;
match event_bus_error {
Error::EventBusStarted => {} // 正确匹配
_ => panic!("Pattern matching failed"),
}
}
#[test]
fn test_error_message_formatting() {
// 测试错误消息格式化
let test_cases = vec![
(Error::FeatureDisabled("kafka"), "Feature disabled: kafka"),
(Error::MissingField("bucket_name"), "necessary fields are missing:bucket_name"),
(Error::ValidationError("invalid email"), "field verification failed:invalid email"),
(Error::ConfigError("missing file".to_string()), "Configuration error: missing file"),
];
for (error, expected_message) in test_cases {
assert_eq!(error.to_string(), expected_message);
}
}
#[test]
fn test_error_memory_efficiency() {
// 测试错误类型的内存效率
use std::mem;
let size = mem::size_of::<Error>();
// 错误类型应该相对紧凑,考虑到包含多种错误类型,96 字节是合理的
assert!(size <= 128, "Error size should be reasonable, got {} bytes", size);
// 测试 Option<Error>的大小
let option_size = mem::size_of::<Option<Error>>();
assert!(option_size <= 136, "Option<Error> should be efficient, got {} bytes", option_size);
}
#[test]
fn test_error_thread_safety() {
// 测试错误类型的线程安全性
fn assert_send<T: Send>() {}
fn assert_sync<T: Sync>() {}
assert_send::<Error>();
assert_sync::<Error>();
}
#[test]
fn test_custom_error_edge_cases() {
// 测试自定义错误的边界情况
let long_message = "a".repeat(1000);
let long_error = Error::custom(&long_message);
match long_error {
Error::Custom(msg) => assert_eq!(msg.len(), 1000),
_ => panic!("Expected Custom error variant"),
}
// 测试包含换行符的消息
let multiline_error = Error::custom("line1\nline2\nline3");
match multiline_error {
Error::Custom(msg) => assert!(msg.contains('\n')),
_ => panic!("Expected Custom error variant"),
}
// 测试包含 Unicode 字符的消息
let unicode_error = Error::custom("🚀 Unicode test 测试 🎉");
match unicode_error {
Error::Custom(msg) => assert!(msg.contains('🚀')),
_ => panic!("Expected Custom error variant"),
}
}
#[test]
fn test_error_conversion_consistency() {
// 测试错误转换的一致性
let original_io_error = io::Error::new(io::ErrorKind::TimedOut, "timeout");
let error_message = original_io_error.to_string();
let converted: Error = original_io_error.into();
// 验证转换后的错误包含原始错误信息
assert!(converted.to_string().contains(&error_message));
}
#[test]
fn test_error_downcast() {
// 测试错误的向下转型
let io_error = io::Error::other("test error");
let converted: Error = io_error.into();
// 验证可以获取源错误
if let Error::Io(ref inner) = converted {
assert_eq!(inner.to_string(), "test error");
assert_eq!(inner.kind(), io::ErrorKind::Other);
} else {
panic!("Expected Io error variant");
}
}
#[test]
fn test_error_chain_depth() {
// 测试错误链的深度
let root_cause = io::Error::other("root cause");
let converted: Error = root_cause.into();
let mut depth = 0;
let mut current_error: &dyn StdError = &converted;
while let Some(source) = current_error.source() {
depth += 1;
current_error = source;
// 防止无限循环
if depth > 10 {
break;
}
}
assert!(depth > 0, "Error should have at least one source");
assert!(depth <= 3, "Error chain should not be too deep");
}
#[test]
fn test_static_str_lifetime() {
// 测试静态字符串生命周期
fn create_feature_error() -> Error {
Error::FeatureDisabled("static_feature")
}
let error = create_feature_error();
match error {
Error::FeatureDisabled(feature) => assert_eq!(feature, "static_feature"),
_ => panic!("Expected FeatureDisabled error variant"),
}
}
#[test]
fn test_error_formatting_consistency() {
// 测试错误格式化的一致性
let errors = vec![
Error::FeatureDisabled("test"),
Error::MissingField("field"),
Error::ValidationError("validation"),
Error::Custom("custom".to_string()),
];
for error in errors {
let display_str = error.to_string();
let debug_str = format!("{:?}", error);
// Display 和 Debug 都不应该为空
assert!(!display_str.is_empty());
assert!(!debug_str.is_empty());
// Debug 输出通常包含更多信息,但不是绝对的
// 这里我们只验证两者都有内容即可
assert!(!debug_str.is_empty());
assert!(!display_str.is_empty());
}
}
}
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use crate::Error;
use serde::{Deserialize, Serialize};
use serde_with::{DeserializeFromStr, SerializeDisplay};
use smallvec::{smallvec, SmallVec};
use std::borrow::Cow;
use std::collections::HashMap;
use std::time::{SystemTime, UNIX_EPOCH};
use strum::{Display, EnumString};
use uuid::Uuid;
/// A struct representing the identity of the user
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Identity {
#[serde(rename = "principalId")]
pub principal_id: String,
}
impl Identity {
/// Create a new Identity instance
pub fn new(principal_id: String) -> Self {
Self { principal_id }
}
/// Set the principal ID
pub fn set_principal_id(&mut self, principal_id: String) {
self.principal_id = principal_id;
}
}
/// A struct representing the bucket information
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Bucket {
pub name: String,
#[serde(rename = "ownerIdentity")]
pub owner_identity: Identity,
pub arn: String,
}
impl Bucket {
/// Create a new Bucket instance
pub fn new(name: String, owner_identity: Identity, arn: String) -> Self {
Self {
name,
owner_identity,
arn,
}
}
/// Set the name of the bucket
pub fn set_name(&mut self, name: String) {
self.name = name;
}
/// Set the ARN of the bucket
pub fn set_arn(&mut self, arn: String) {
self.arn = arn;
}
/// Set the owner identity of the bucket
pub fn set_owner_identity(&mut self, owner_identity: Identity) {
self.owner_identity = owner_identity;
}
}
/// A struct representing the object information
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Object {
pub key: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub size: Option<i64>,
#[serde(default, skip_serializing_if = "Option::is_none", rename = "eTag")]
pub etag: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none", rename = "contentType")]
pub content_type: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none", rename = "userMetadata")]
pub user_metadata: Option<HashMap<String, String>>,
#[serde(default, skip_serializing_if = "Option::is_none", rename = "versionId")]
pub version_id: Option<String>,
pub sequencer: String,
}
impl Object {
/// Create a new Object instance
pub fn new(
key: String,
size: Option<i64>,
etag: Option<String>,
content_type: Option<String>,
user_metadata: Option<HashMap<String, String>>,
version_id: Option<String>,
sequencer: String,
) -> Self {
Self {
key,
size,
etag,
content_type,
user_metadata,
version_id,
sequencer,
}
}
/// Set the key
pub fn set_key(&mut self, key: String) {
self.key = key;
}
/// Set the size
pub fn set_size(&mut self, size: Option<i64>) {
self.size = size;
}
/// Set the etag
pub fn set_etag(&mut self, etag: Option<String>) {
self.etag = etag;
}
/// Set the content type
pub fn set_content_type(&mut self, content_type: Option<String>) {
self.content_type = content_type;
}
/// Set the user metadata
pub fn set_user_metadata(&mut self, user_metadata: Option<HashMap<String, String>>) {
self.user_metadata = user_metadata;
}
/// Set the version ID
pub fn set_version_id(&mut self, version_id: Option<String>) {
self.version_id = version_id;
}
/// Set the sequencer
pub fn set_sequencer(&mut self, sequencer: String) {
self.sequencer = sequencer;
}
}
/// A struct representing the metadata of the event
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Metadata {
#[serde(rename = "s3SchemaVersion")]
pub schema_version: String,
#[serde(rename = "configurationId")]
pub configuration_id: String,
pub bucket: Bucket,
pub object: Object,
}
impl Default for Metadata {
fn default() -> Self {
Self::new()
}
}
impl Metadata {
/// Create a new Metadata instance with default values
pub fn new() -> Self {
Self {
schema_version: "1.0".to_string(),
configuration_id: "default".to_string(),
bucket: Bucket::new(
"default".to_string(),
Identity::new("default".to_string()),
"arn:aws:s3:::default".to_string(),
),
object: Object::new("default".to_string(), None, None, None, None, None, "default".to_string()),
}
}
/// Create a new Metadata instance
pub fn create(schema_version: String, configuration_id: String, bucket: Bucket, object: Object) -> Self {
Self {
schema_version,
configuration_id,
bucket,
object,
}
}
/// Set the schema version
pub fn set_schema_version(&mut self, schema_version: String) {
self.schema_version = schema_version;
}
/// Set the configuration ID
pub fn set_configuration_id(&mut self, configuration_id: String) {
self.configuration_id = configuration_id;
}
/// Set the bucket
pub fn set_bucket(&mut self, bucket: Bucket) {
self.bucket = bucket;
}
/// Set the object
pub fn set_object(&mut self, object: Object) {
self.object = object;
}
}
/// A struct representing the source of the event
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Source {
pub host: String,
pub port: String,
#[serde(rename = "userAgent")]
pub user_agent: String,
}
impl Source {
/// Create a new Source instance
pub fn new(host: String, port: String, user_agent: String) -> Self {
Self { host, port, user_agent }
}
/// Set the host
pub fn set_host(&mut self, host: String) {
self.host = host;
}
/// Set the port
pub fn set_port(&mut self, port: String) {
self.port = port;
}
/// Set the user agent
pub fn set_user_agent(&mut self, user_agent: String) {
self.user_agent = user_agent;
}
}
/// Builder for creating an Event.
///
/// This struct is used to build an Event object with various parameters.
/// It provides methods to set each parameter and a build method to create the Event.
#[derive(Default, Clone)]
pub struct EventBuilder {
event_version: Option<String>,
event_source: Option<String>,
aws_region: Option<String>,
event_time: Option<String>,
event_name: Option<Name>,
user_identity: Option<Identity>,
request_parameters: Option<HashMap<String, String>>,
response_elements: Option<HashMap<String, String>>,
s3: Option<Metadata>,
source: Option<Source>,
channels: Option<SmallVec<[String; 2]>>,
}
impl EventBuilder {
/// create a builder that pre filled default values
pub fn new() -> Self {
Self {
event_version: Some(Cow::Borrowed("2.0").to_string()),
event_source: Some(Cow::Borrowed("aws:s3").to_string()),
aws_region: Some("us-east-1".to_string()),
event_time: Some(SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs().to_string()),
event_name: None,
user_identity: Some(Identity {
principal_id: "anonymous".to_string(),
}),
request_parameters: Some(HashMap::new()),
response_elements: Some(HashMap::new()),
s3: None,
source: None,
channels: Some(Vec::new().into()),
}
}
/// verify and set the event version
pub fn event_version(mut self, event_version: impl Into<String>) -> Self {
let event_version = event_version.into();
if !event_version.is_empty() {
self.event_version = Some(event_version);
}
self
}
/// verify and set the event source
pub fn event_source(mut self, event_source: impl Into<String>) -> Self {
let event_source = event_source.into();
if !event_source.is_empty() {
self.event_source = Some(event_source);
}
self
}
/// set up aws regions
pub fn aws_region(mut self, aws_region: impl Into<String>) -> Self {
self.aws_region = Some(aws_region.into());
self
}
/// set event time
pub fn event_time(mut self, event_time: impl Into<String>) -> Self {
self.event_time = Some(event_time.into());
self
}
/// set event name
pub fn event_name(mut self, event_name: Name) -> Self {
self.event_name = Some(event_name);
self
}
/// set user identity
pub fn user_identity(mut self, user_identity: Identity) -> Self {
self.user_identity = Some(user_identity);
self
}
/// set request parameters
pub fn request_parameters(mut self, request_parameters: HashMap<String, String>) -> Self {
self.request_parameters = Some(request_parameters);
self
}
/// set response elements
pub fn response_elements(mut self, response_elements: HashMap<String, String>) -> Self {
self.response_elements = Some(response_elements);
self
}
/// setting up s3 metadata
pub fn s3(mut self, s3: Metadata) -> Self {
self.s3 = Some(s3);
self
}
/// set event source information
pub fn source(mut self, source: Source) -> Self {
self.source = Some(source);
self
}
/// set up the sending channel
pub fn channels(mut self, channels: Vec<String>) -> Self {
self.channels = Some(channels.into());
self
}
/// Create a preconfigured builder for common object event scenarios
pub fn for_object_creation(s3: Metadata, source: Source) -> Self {
Self::new().event_name(Name::ObjectCreatedPut).s3(s3).source(source)
}
/// Create a preconfigured builder for object deletion events
pub fn for_object_removal(s3: Metadata, source: Source) -> Self {
Self::new().event_name(Name::ObjectRemovedDelete).s3(s3).source(source)
}
/// build event instance
///
/// Verify the required fields and create a complete Event object
pub fn build(self) -> Result<Event, Error> {
let event_version = self.event_version.ok_or(Error::MissingField("event_version"))?;
let event_source = self.event_source.ok_or(Error::MissingField("event_source"))?;
let aws_region = self.aws_region.ok_or(Error::MissingField("aws_region"))?;
let event_time = self.event_time.ok_or(Error::MissingField("event_time"))?;
let event_name = self.event_name.ok_or(Error::MissingField("event_name"))?;
let user_identity = self.user_identity.ok_or(Error::MissingField("user_identity"))?;
let request_parameters = self.request_parameters.unwrap_or_default();
let response_elements = self.response_elements.unwrap_or_default();
let s3 = self.s3.ok_or(Error::MissingField("s3"))?;
let source = self.source.ok_or(Error::MissingField("source"))?;
let channels = self.channels.unwrap_or_else(|| smallvec![]);
Ok(Event {
event_version,
event_source,
aws_region,
event_time,
event_name,
user_identity,
request_parameters,
response_elements,
s3,
source,
id: Uuid::new_v4(),
timestamp: SystemTime::now(),
channels,
})
}
}
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Event {
#[serde(rename = "eventVersion")]
pub event_version: String,
#[serde(rename = "eventSource")]
pub event_source: String,
#[serde(rename = "awsRegion")]
pub aws_region: String,
#[serde(rename = "eventTime")]
pub event_time: String,
#[serde(rename = "eventName")]
pub event_name: Name,
#[serde(rename = "userIdentity")]
pub user_identity: Identity,
#[serde(rename = "requestParameters")]
pub request_parameters: HashMap<String, String>,
#[serde(rename = "responseElements")]
pub response_elements: HashMap<String, String>,
pub s3: Metadata,
pub source: Source,
pub id: Uuid,
pub timestamp: SystemTime,
pub channels: SmallVec<[String; 2]>,
}
impl Event {
/// create a new event builder
///
/// Returns an EventBuilder instance pre-filled with default values
pub fn builder() -> EventBuilder {
EventBuilder::new()
}
/// Quickly create Event instances with necessary fields
///
/// suitable for common s3 event scenarios
pub fn create(event_name: Name, s3: Metadata, source: Source, channels: Vec<String>) -> Self {
Self::builder()
.event_name(event_name)
.s3(s3)
.source(source)
.channels(channels)
.build()
.expect("Failed to create event, missing necessary parameters")
}
/// a convenient way to create a preconfigured builder
pub fn for_object_creation(s3: Metadata, source: Source) -> EventBuilder {
EventBuilder::for_object_creation(s3, source)
}
/// a convenient way to create a preconfigured builder
pub fn for_object_removal(s3: Metadata, source: Source) -> EventBuilder {
EventBuilder::for_object_removal(s3, source)
}
/// Determine whether an event belongs to a specific type
pub fn is_type(&self, event_type: Name) -> bool {
let mask = event_type.mask();
(self.event_name.mask() & mask) != 0
}
/// Determine whether an event needs to be sent to a specific channel
pub fn is_for_channel(&self, channel: &str) -> bool {
self.channels.iter().any(|c| c == channel)
}
}
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Log {
#[serde(rename = "eventName")]
pub event_name: Name,
pub key: String,
pub records: Vec<Event>,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, SerializeDisplay, DeserializeFromStr, Display, EnumString)]
#[strum(serialize_all = "SCREAMING_SNAKE_CASE")]
pub enum Name {
ObjectAccessedGet,
ObjectAccessedGetRetention,
ObjectAccessedGetLegalHold,
ObjectAccessedHead,
ObjectAccessedAttributes,
ObjectCreatedCompleteMultipartUpload,
ObjectCreatedCopy,
ObjectCreatedPost,
ObjectCreatedPut,
ObjectCreatedPutRetention,
ObjectCreatedPutLegalHold,
ObjectCreatedPutTagging,
ObjectCreatedDeleteTagging,
ObjectRemovedDelete,
ObjectRemovedDeleteMarkerCreated,
ObjectRemovedDeleteAllVersions,
ObjectRemovedNoOp,
BucketCreated,
BucketRemoved,
ObjectReplicationFailed,
ObjectReplicationComplete,
ObjectReplicationMissedThreshold,
ObjectReplicationReplicatedAfterThreshold,
ObjectReplicationNotTracked,
ObjectRestorePost,
ObjectRestoreCompleted,
ObjectTransitionFailed,
ObjectTransitionComplete,
ObjectManyVersions,
ObjectLargeVersions,
PrefixManyFolders,
IlmDelMarkerExpirationDelete,
ObjectAccessedAll,
ObjectCreatedAll,
ObjectRemovedAll,
ObjectReplicationAll,
ObjectRestoreAll,
ObjectTransitionAll,
ObjectScannerAll,
Everything,
}
impl Name {
pub fn expand(&self) -> Vec<Name> {
match self {
Name::ObjectAccessedAll => vec![
Name::ObjectAccessedGet,
Name::ObjectAccessedHead,
Name::ObjectAccessedGetRetention,
Name::ObjectAccessedGetLegalHold,
Name::ObjectAccessedAttributes,
],
Name::ObjectCreatedAll => vec![
Name::ObjectCreatedCompleteMultipartUpload,
Name::ObjectCreatedCopy,
Name::ObjectCreatedPost,
Name::ObjectCreatedPut,
Name::ObjectCreatedPutRetention,
Name::ObjectCreatedPutLegalHold,
Name::ObjectCreatedPutTagging,
Name::ObjectCreatedDeleteTagging,
],
Name::ObjectRemovedAll => vec![
Name::ObjectRemovedDelete,
Name::ObjectRemovedDeleteMarkerCreated,
Name::ObjectRemovedNoOp,
Name::ObjectRemovedDeleteAllVersions,
],
Name::ObjectReplicationAll => vec![
Name::ObjectReplicationFailed,
Name::ObjectReplicationComplete,
Name::ObjectReplicationNotTracked,
Name::ObjectReplicationMissedThreshold,
Name::ObjectReplicationReplicatedAfterThreshold,
],
Name::ObjectRestoreAll => vec![Name::ObjectRestorePost, Name::ObjectRestoreCompleted],
Name::ObjectTransitionAll => {
vec![Name::ObjectTransitionFailed, Name::ObjectTransitionComplete]
}
Name::ObjectScannerAll => vec![Name::ObjectManyVersions, Name::ObjectLargeVersions, Name::PrefixManyFolders],
Name::Everything => (1..=Name::IlmDelMarkerExpirationDelete as u32)
.map(|i| Name::from_repr(i).unwrap())
.collect(),
_ => vec![*self],
}
}
pub fn mask(&self) -> u64 {
if (*self as u32) < Name::ObjectAccessedAll as u32 {
1 << (*self as u32 - 1)
} else {
self.expand().iter().fold(0, |acc, n| acc | (1 << (*n as u32 - 1)))
}
}
fn from_repr(discriminant: u32) -> Option<Self> {
match discriminant {
1 => Some(Name::ObjectAccessedGet),
2 => Some(Name::ObjectAccessedGetRetention),
3 => Some(Name::ObjectAccessedGetLegalHold),
4 => Some(Name::ObjectAccessedHead),
5 => Some(Name::ObjectAccessedAttributes),
6 => Some(Name::ObjectCreatedCompleteMultipartUpload),
7 => Some(Name::ObjectCreatedCopy),
8 => Some(Name::ObjectCreatedPost),
9 => Some(Name::ObjectCreatedPut),
10 => Some(Name::ObjectCreatedPutRetention),
11 => Some(Name::ObjectCreatedPutLegalHold),
12 => Some(Name::ObjectCreatedPutTagging),
13 => Some(Name::ObjectCreatedDeleteTagging),
14 => Some(Name::ObjectRemovedDelete),
15 => Some(Name::ObjectRemovedDeleteMarkerCreated),
16 => Some(Name::ObjectRemovedDeleteAllVersions),
17 => Some(Name::ObjectRemovedNoOp),
18 => Some(Name::BucketCreated),
19 => Some(Name::BucketRemoved),
20 => Some(Name::ObjectReplicationFailed),
21 => Some(Name::ObjectReplicationComplete),
22 => Some(Name::ObjectReplicationMissedThreshold),
23 => Some(Name::ObjectReplicationReplicatedAfterThreshold),
24 => Some(Name::ObjectReplicationNotTracked),
25 => Some(Name::ObjectRestorePost),
26 => Some(Name::ObjectRestoreCompleted),
27 => Some(Name::ObjectTransitionFailed),
28 => Some(Name::ObjectTransitionComplete),
29 => Some(Name::ObjectManyVersions),
30 => Some(Name::ObjectLargeVersions),
31 => Some(Name::PrefixManyFolders),
32 => Some(Name::IlmDelMarkerExpirationDelete),
33 => Some(Name::ObjectAccessedAll),
34 => Some(Name::ObjectCreatedAll),
35 => Some(Name::ObjectRemovedAll),
36 => Some(Name::ObjectReplicationAll),
37 => Some(Name::ObjectRestoreAll),
38 => Some(Name::ObjectTransitionAll),
39 => Some(Name::ObjectScannerAll),
40 => Some(Name::Everything),
_ => None,
}
}
}
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mod adapter;
mod config;
mod error;
mod event;
mod notifier;
mod store;
mod system;
pub use adapter::create_adapters;
#[cfg(all(feature = "kafka", target_os = "linux"))]
pub use adapter::kafka::KafkaAdapter;
#[cfg(feature = "mqtt")]
pub use adapter::mqtt::MqttAdapter;
#[cfg(feature = "webhook")]
pub use adapter::webhook::WebhookAdapter;
pub use adapter::ChannelAdapter;
pub use adapter::ChannelAdapterType;
pub use config::adapter::AdapterCommon;
pub use config::adapter::AdapterConfig;
pub use config::notifier::EventNotifierConfig;
pub use config::{DEFAULT_MAX_RETRIES, DEFAULT_RETRY_INTERVAL};
pub use error::Error;
pub use event::{Bucket, Event, EventBuilder, Identity, Log, Metadata, Name, Object, Source};
pub use store::queue::QueueStore;
#[cfg(all(feature = "kafka", target_os = "linux"))]
pub use config::kafka::KafkaConfig;
#[cfg(feature = "mqtt")]
pub use config::mqtt::MqttConfig;
#[cfg(feature = "webhook")]
pub use config::webhook::WebhookConfig;
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use crate::config::notifier::EventNotifierConfig;
use crate::Event;
use common::error::{Error, Result};
use ecstore::store::ECStore;
use std::sync::Arc;
use tokio::sync::{broadcast, mpsc};
use tokio_util::sync::CancellationToken;
use tracing::{debug, error, info, instrument, warn};
/// Event Notifier
pub struct EventNotifier {
/// The event sending channel
sender: mpsc::Sender<Event>,
/// Receiver task handle
task_handle: Option<tokio::task::JoinHandle<()>>,
/// Configuration information
config: EventNotifierConfig,
/// Turn off tagging
shutdown: CancellationToken,
/// Close the notification channel
shutdown_complete_tx: Option<broadcast::Sender<()>>,
}
impl EventNotifier {
/// Create a new event notifier
#[instrument(skip_all)]
pub async fn new(store: Arc<ECStore>) -> Result<Self> {
let manager = crate::store::manager::EventManager::new(store);
let manager = Arc::new(manager.await);
// Initialize the configuration
let config = manager.clone().init().await?;
// Create adapters
let adapters = manager.clone().create_adapters().await?;
info!("Created {} adapters", adapters.len());
// Create a close marker
let shutdown = CancellationToken::new();
let (shutdown_complete_tx, _) = broadcast::channel(1);
// 创建事件通道 - 使用默认容量,因为每个适配器都有自己的队列
// 这里使用较小的通道容量,因为事件会被快速分发到适配器
let (sender, mut receiver) = mpsc::channel::<Event>(100);
let shutdown_clone = shutdown.clone();
let shutdown_complete_tx_clone = shutdown_complete_tx.clone();
let adapters_clone = adapters.clone();
// Start the event processing task
let task_handle = tokio::spawn(async move {
debug!("The event processing task starts");
loop {
tokio::select! {
Some(event) = receiver.recv() => {
debug!("The event is received:{}", event.id);
// Distribute to all adapters
for adapter in &adapters_clone {
let adapter_name = adapter.name();
match adapter.send(&event).await {
Ok(_) => {
debug!("Event {} Successfully sent to the adapter {}", event.id, adapter_name);
}
Err(e) => {
error!("Event {} send to adapter {} failed:{}", event.id, adapter_name, e);
}
}
}
}
_ = shutdown_clone.cancelled() => {
info!("A shutdown signal is received, and the event processing task is stopped");
let _ = shutdown_complete_tx_clone.send(());
break;
}
}
}
debug!("The event processing task has been stopped");
});
Ok(Self {
sender,
task_handle: Some(task_handle),
config,
shutdown,
shutdown_complete_tx: Some(shutdown_complete_tx),
})
}
/// Turn off the event notifier
pub async fn shutdown(&mut self) -> Result<()> {
info!("Turn off the event notifier");
self.shutdown.cancel();
if let Some(shutdown_tx) = self.shutdown_complete_tx.take() {
let mut rx = shutdown_tx.subscribe();
// Wait for the shutdown to complete the signal or time out
tokio::select! {
_ = rx.recv() => {
debug!("A shutdown completion signal is received");
}
_ = tokio::time::sleep(std::time::Duration::from_secs(10)) => {
warn!("Shutdown timeout and forced termination");
}
}
}
if let Some(handle) = self.task_handle.take() {
handle.abort();
match handle.await {
Ok(_) => debug!("The event processing task has been terminated gracefully"),
Err(e) => {
if e.is_cancelled() {
debug!("The event processing task has been canceled");
} else {
error!("An error occurred while waiting for the event processing task to terminate:{}", e);
}
}
}
}
info!("The event notifier is completely turned off");
Ok(())
}
/// Send events
pub async fn send(&self, event: Event) -> Result<()> {
self.sender
.send(event)
.await
.map_err(|e| Error::msg(format!("Failed to send events to channel:{}", e)))
}
/// Get the current configuration
pub fn config(&self) -> &EventNotifierConfig {
&self.config
}
}
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use crate::{adapter, ChannelAdapter, EventNotifierConfig};
use common::error::{Error, Result};
use ecstore::config::com::{read_config, save_config, CONFIG_PREFIX};
use ecstore::disk::RUSTFS_META_BUCKET;
use ecstore::store::ECStore;
use ecstore::store_api::ObjectOptions;
use ecstore::utils::path::SLASH_SEPARATOR;
use ecstore::StorageAPI;
use once_cell::sync::Lazy;
use std::sync::Arc;
use tokio::sync::Mutex;
use tracing::instrument;
/// * config file
const CONFIG_FILE: &str = "event.json";
/// event sys config
const EVENT: &str = "event";
/// Global storage API access point
pub static GLOBAL_STORE_API: Lazy<Mutex<Option<Arc<ECStore>>>> = Lazy::new(|| Mutex::new(None));
/// Global event system configuration
pub static GLOBAL_EVENT_CONFIG: Lazy<Mutex<Option<EventNotifierConfig>>> = Lazy::new(|| Mutex::new(None));
/// EventManager Responsible for managing all operations of the event system
#[derive(Debug)]
pub struct EventManager {
api: Arc<ECStore>,
}
impl EventManager {
/// Create a new Event Manager
pub async fn new(api: Arc<ECStore>) -> Self {
// Set the global storage API
{
let mut global_api = GLOBAL_STORE_API.lock().await;
*global_api = Some(api.clone());
}
Self { api }
}
/// Initialize the Event Manager
///
/// # Returns
/// If it succeeds, it returns configuration information, and if it fails, it returns an error
#[instrument(skip_all)]
pub async fn init(&self) -> Result<EventNotifierConfig> {
tracing::info!("Event system configuration initialization begins");
let cfg = match read_config_without_migrate(self.api.clone()).await {
Ok(cfg) => {
tracing::info!("The event system configuration was successfully read");
cfg
}
Err(err) => {
tracing::error!("Failed to initialize the event system configuration:{:?}", err);
return Err(err);
}
};
*GLOBAL_EVENT_CONFIG.lock().await = Some(cfg.clone());
tracing::info!("The initialization of the event system configuration is complete");
Ok(cfg)
}
/// Create a new configuration
///
/// # Parameters
/// - `cfg`: The configuration to be created
///
/// # Returns
/// The result of the operation
pub async fn create_config(&self, cfg: &EventNotifierConfig) -> Result<()> {
// Check whether the configuration already exists
if read_event_config(self.api.clone()).await.is_ok() {
return Err(Error::msg("The configuration already exists, use the update action"));
}
save_event_config(self.api.clone(), cfg).await?;
*GLOBAL_EVENT_CONFIG.lock().await = Some(cfg.clone());
Ok(())
}
/// Update the configuration
///
/// # Parameters
/// - `cfg`: The configuration to be updated
///
/// # Returns
/// The result of the operation
pub async fn update_config(&self, cfg: &EventNotifierConfig) -> Result<()> {
// Read the existing configuration first to merge
let current_cfg = read_event_config(self.api.clone()).await.unwrap_or_default();
// This is where the merge logic can be implemented
let merged_cfg = self.merge_configs(current_cfg, cfg.clone());
save_event_config(self.api.clone(), &merged_cfg).await?;
*GLOBAL_EVENT_CONFIG.lock().await = Some(merged_cfg);
Ok(())
}
/// Merge the two configurations
fn merge_configs(&self, current: EventNotifierConfig, new: EventNotifierConfig) -> EventNotifierConfig {
let mut merged = current;
// Merge webhook configurations
for (id, config) in new.webhook {
merged.webhook.insert(id, config);
}
// Merge Kafka configurations
for (id, config) in new.kafka {
merged.kafka.insert(id, config);
}
// Merge MQTT configurations
for (id, config) in new.mqtt {
merged.mqtt.insert(id, config);
}
merged
}
/// Delete the configuration
pub async fn delete_config(&self) -> Result<()> {
let config_file = get_event_config_file();
self.api
.delete_object(
RUSTFS_META_BUCKET,
&config_file,
ObjectOptions {
delete_prefix: true,
delete_prefix_object: true,
..Default::default()
},
)
.await?;
// Reset the global configuration to default
// let _ = GLOBAL_EventSysConfig.set(self.read_config().await?);
Ok(())
}
/// Read the configuration
pub async fn read_config(&self) -> Result<EventNotifierConfig> {
read_event_config(self.api.clone()).await
}
/// Create all enabled adapters
pub async fn create_adapters(&self) -> Result<Vec<Arc<dyn ChannelAdapter>>> {
let config = match GLOBAL_EVENT_CONFIG.lock().await.clone() {
Some(cfg) => cfg,
None => return Err(Error::msg("The global configuration is not initialized")),
};
let adapter_configs = config.to_adapter_configs();
match adapter::create_adapters(adapter_configs) {
Ok(adapters) => Ok(adapters),
Err(err) => {
tracing::error!("Failed to create adapters: {:?}", err);
Err(Error::from(err))
}
}
}
}
/// Get the Global Storage API
pub async fn get_global_store_api() -> Option<Arc<ECStore>> {
GLOBAL_STORE_API.lock().await.clone()
}
/// Get the Global Storage API
pub async fn get_global_event_config() -> Option<EventNotifierConfig> {
GLOBAL_EVENT_CONFIG.lock().await.clone()
}
/// Read event configuration
async fn read_event_config<S: StorageAPI>(api: Arc<S>) -> Result<EventNotifierConfig> {
let config_file = get_event_config_file();
let data = read_config(api, &config_file).await?;
EventNotifierConfig::unmarshal(&data)
}
/// Save the event configuration
async fn save_event_config<S: StorageAPI>(api: Arc<S>, config: &EventNotifierConfig) -> Result<()> {
let config_file = get_event_config_file();
let data = config.marshal()?;
save_config(api, &config_file, data).await
}
/// Get the event profile path
fn get_event_config_file() -> String {
format!("{}{}{}{}{}", CONFIG_PREFIX, SLASH_SEPARATOR, EVENT, SLASH_SEPARATOR, CONFIG_FILE)
}
/// Read the configuration file and create a default configuration if it doesn't exist
pub async fn read_config_without_migrate<S: StorageAPI>(api: Arc<S>) -> Result<EventNotifierConfig> {
let config_file = get_event_config_file();
let data = match read_config(api.clone(), &config_file).await {
Ok(data) => {
if data.is_empty() {
return new_and_save_event_config(api).await;
}
data
}
Err(err) if ecstore::config::error::is_err_config_not_found(&err) => {
tracing::warn!("If the configuration file does not exist, start initializing the default configuration");
return new_and_save_event_config(api).await;
}
Err(err) => {
tracing::error!("Read configuration file error: {:?}", err);
return Err(err);
}
};
// Parse configuration
let cfg = EventNotifierConfig::unmarshal(&data)?;
Ok(cfg)
}
/// Create and save a new configuration
async fn new_and_save_event_config<S: StorageAPI>(api: Arc<S>) -> Result<EventNotifierConfig> {
let cfg = EventNotifierConfig::default();
save_event_config(api, &cfg).await?;
Ok(cfg)
}
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pub(crate) mod manager;
pub(crate) mod queue;
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use common::error::{Error, Result};
use serde::{de::DeserializeOwned, Serialize};
use snap::raw::{Decoder, Encoder};
use std::collections::HashMap;
use std::io::Read;
use std::marker::PhantomData;
use std::path::{Path, PathBuf};
use std::sync::{Arc, RwLock};
use std::time::{SystemTime, UNIX_EPOCH};
use std::{fs, io};
use uuid::Uuid;
/// Keys in storage
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Key {
/// Key name
pub name: String,
/// Whether to compress
pub compress: bool,
/// filename extension
pub extension: String,
/// Number of items
pub item_count: usize,
}
impl Key {
/// Create a new key
pub fn new(name: impl Into<String>, extension: impl Into<String>, compress: bool) -> Self {
Self {
name: name.into(),
compress,
extension: extension.into(),
item_count: 1,
}
}
/// Convert to string form
#[allow(clippy::inherent_to_string)]
pub fn to_string(&self) -> String {
let mut key_str = self.name.clone();
if self.item_count > 1 {
key_str = format!("{}:{}", self.item_count, self.name);
}
let compress_ext = if self.compress { COMPRESS_EXT } else { "" };
format!("{}{}{}", key_str, self.extension, compress_ext)
}
}
/// Parse key from file name
#[allow(clippy::redundant_closure)]
pub fn parse_key(filename: &str) -> Key {
let compress = filename.ends_with(COMPRESS_EXT);
let filename = if compress {
&filename[..filename.len() - 7] // 移除 ".snappy"
} else {
filename
};
let mut parts = filename.splitn(2, '.');
let name_part = parts.next().unwrap_or("");
let extension = parts
.next()
.map_or_else(|| String::new(), |ext| format!(".{}", ext))
.to_string();
let mut name = name_part.to_string();
let mut item_count = 1;
if let Some(pos) = name_part.find(':') {
if let Ok(count) = name_part[..pos].parse::<usize>() {
item_count = count;
name = name_part[pos + 1..].to_string();
}
}
Key {
name,
compress,
extension,
item_count,
}
}
/// Store the characteristics of the project
pub trait Store<T>: Send + Sync
where
T: Serialize + DeserializeOwned + Clone + Send + Sync + 'static,
{
/// Store a single item
fn put(&self, item: T) -> Result<Key>;
/// Store multiple projects
fn put_multiple(&self, items: Vec<T>) -> Result<Key>;
/// Get a single item
fn get(&self, key: &Key) -> Result<T>;
/// Get multiple items
fn get_multiple(&self, key: &Key) -> Result<Vec<T>>;
/// Get the raw bytes
fn get_raw(&self, key: &Key) -> Result<Vec<u8>>;
/// Stores raw bytes
fn put_raw(&self, data: &[u8]) -> Result<Key>;
/// Gets the number of items in storage
fn len(&self) -> usize;
/// Whether it is empty or not
fn is_empty(&self) -> bool {
self.len() == 0
}
/// Lists all keys
fn list(&self) -> Vec<Key>;
/// Delete the key
fn del(&self, key: &Key) -> Result<()>;
/// Open Storage
fn open(&self) -> Result<()>;
/// Delete the storage
fn delete(&self) -> Result<()>;
}
const DEFAULT_LIMIT: u64 = 100000;
const DEFAULT_EXT: &str = ".unknown";
const COMPRESS_EXT: &str = ".snappy";
/// Queue storage implementation
pub struct QueueStore<T> {
/// Project Limitations
entry_limit: u64,
/// Storage directory
directory: PathBuf,
/// filename extension
file_ext: String,
/// Item mapping: key -> modified time (Unix nanoseconds)
entries: Arc<RwLock<HashMap<String, i64>>>,
/// Type tags
_phantom: PhantomData<T>,
/// Whether to compress
compress: bool,
/// Store name
name: String,
}
impl<T> QueueStore<T>
where
T: Serialize + DeserializeOwned + Clone + Send + Sync + 'static,
{
/// Create a new queue store
pub fn new<P: AsRef<Path>>(directory: P, name: String, limit: u64, ext: Option<String>) -> Self {
let limit = if limit == 0 { DEFAULT_LIMIT } else { limit };
let ext = ext.unwrap_or_else(|| DEFAULT_EXT.to_string());
let mut path = PathBuf::from(directory.as_ref());
path.push(&name);
// Create a directory (if it doesn't exist)
if !path.exists() {
if let Err(e) = fs::create_dir_all(&path) {
tracing::error!("创建存储目录失败 {}: {}", path.display(), e);
}
}
Self {
directory: directory.as_ref().to_path_buf(),
name,
entry_limit: limit,
file_ext: ext,
compress: true, // Default to compressing
entries: Arc::new(RwLock::new(HashMap::with_capacity(limit as usize))),
_phantom: PhantomData,
}
}
/// Set the file extension
pub fn with_file_ext(mut self, file_ext: &str) -> Self {
self.file_ext = file_ext.to_string();
self
}
/// Set whether to compress or not
pub fn with_compression(mut self, compress: bool) -> Self {
self.compress = compress;
self
}
/// Get the file path
fn get_file_path(&self, key: &Key) -> PathBuf {
let mut filename = key.to_string();
filename.push_str(if self.compress { COMPRESS_EXT } else { &self.file_ext });
self.directory.join(filename)
}
/// Serialize the project
fn serialize_item(&self, item: &T) -> Result<Vec<u8>> {
let data = serde_json::to_vec(item).map_err(|e| Error::msg(format!("Serialization failed: {}", e)))?;
if self.compress {
let mut encoder = Encoder::new();
Ok(encoder
.compress_vec(&data)
.map_err(|e| Error::msg(format!("Compression failed: {}", e)))?)
} else {
Ok(data)
}
}
/// Deserialize the project
fn deserialize_item(&self, data: &[u8], is_compressed: bool) -> Result<T> {
let data = if is_compressed {
let mut decoder = Decoder::new();
decoder
.decompress_vec(data)
.map_err(|e| Error::msg(format!("Unzipping failed: {}", e)))?
} else {
data.to_vec()
};
serde_json::from_slice(&data).map_err(|e| Error::msg(format!("Deserialization failed: {}", e)))
}
/// Lists all files in the directory, sorted by modification time (oldest takes precedence.)
fn list_files(&self) -> Result<Vec<fs::DirEntry>> {
let mut files = Vec::new();
for entry in fs::read_dir(&self.directory)? {
let entry = entry?;
let metadata = entry.metadata()?;
if metadata.is_file() {
files.push(entry);
}
}
// Sort by modification time
files.sort_by(|a, b| {
let a_time = a
.metadata()
.map(|m| m.modified())
.unwrap_or(Ok(UNIX_EPOCH))
.unwrap_or(UNIX_EPOCH);
let b_time = b
.metadata()
.map(|m| m.modified())
.unwrap_or(Ok(UNIX_EPOCH))
.unwrap_or(UNIX_EPOCH);
a_time.cmp(&b_time)
});
Ok(files)
}
/// Write the object to a file
fn write_object(&self, key: &Key, item: &T) -> Result<()> {
// Serialize the object
let data = serde_json::to_vec(item)?;
self.write_bytes(key, &data)
}
/// Write multiple objects to a file
fn write_multiple_objects(&self, key: &Key, items: &[T]) -> Result<()> {
let mut data = Vec::new();
for item in items {
let item_data = serde_json::to_vec(item)?;
data.extend_from_slice(&item_data);
data.push(b'\n');
}
self.write_bytes(key, &data)
}
/// Write bytes to a file
fn write_bytes(&self, key: &Key, data: &[u8]) -> Result<()> {
let path = self.directory.join(key.to_string());
let file_data = if key.compress {
// Use snap to compress data
let mut encoder = Encoder::new();
encoder
.compress_vec(data)
.map_err(|e| Error::msg(format!("Compression failed:{}", e)))?
} else {
data.to_vec()
};
// Make sure the directory exists
if let Some(parent) = path.parent() {
fs::create_dir_all(parent)?;
}
// Write to the file
fs::write(&path, &file_data)?;
// Update the item mapping
let now = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_nanos() as i64;
let mut entries = self
.entries
.write()
.map_err(|_| Error::msg("Failed to obtain a write lock"))?;
entries.insert(key.to_string(), now);
Ok(())
}
/// Read bytes from a file
fn read_bytes(&self, key: &Key) -> Result<Vec<u8>> {
let path = self.directory.join(key.to_string());
let data = fs::read(&path)?;
if data.is_empty() {
return Err(Error::msg("The file is empty"));
}
if key.compress {
// Use Snap to extract the data
let mut decoder = Decoder::new();
decoder
.decompress_vec(&data)
.map_err(|e| Error::msg(format!("Failed to decompress:{}", e)))
} else {
Ok(data)
}
}
/// Check whether the storage limit is reached
fn check_entry_limit(&self) -> Result<()> {
let entries = self.entries.read().map_err(|_| Error::msg("Failed to obtain a read lock"))?;
if entries.len() as u64 >= self.entry_limit {
return Err(Error::msg("The storage limit has been reached"));
}
Ok(())
}
}
impl<T> Store<T> for QueueStore<T>
where
T: Serialize + DeserializeOwned + Clone + Send + Sync + 'static,
{
fn put(&self, item: T) -> Result<Key> {
{
self.check_entry_limit()?;
}
// generate a new uuid
let uuid = Uuid::new_v4();
let key = Key::new(uuid.to_string(), &self.file_ext, true);
self.write_object(&key, &item)?;
Ok(key)
}
fn put_multiple(&self, items: Vec<T>) -> Result<Key> {
if items.is_empty() {
return Err(Error::msg("The list of items is empty"));
}
{
self.check_entry_limit()?;
}
// Generate a new UUID
let uuid = Uuid::new_v4();
let mut key = Key::new(uuid.to_string(), &self.file_ext, true);
key.item_count = items.len();
self.write_multiple_objects(&key, &items)?;
Ok(key)
}
fn get(&self, key: &Key) -> Result<T> {
let items = self.get_multiple(key)?;
if items.is_empty() {
return Err(Error::msg("Item not found"));
}
Ok(items[0].clone())
}
fn get_multiple(&self, key: &Key) -> Result<Vec<T>> {
let data = self.get_raw(key)?;
let mut items = Vec::with_capacity(key.item_count);
let mut reader = io::Cursor::new(&data);
// Try to read each JSON object
let mut buffer = Vec::new();
// if the read fails try parsing it once
if reader.read_to_end(&mut buffer).is_err() {
// Try to parse the entire data as a single object
return match serde_json::from_slice::<T>(&data) {
Ok(item) => {
items.push(item);
Ok(items)
}
Err(_) => {
// An attempt was made to resolve to an array of objects
match serde_json::from_slice::<Vec<T>>(&data) {
Ok(array_items) => Ok(array_items),
Err(e) => Err(Error::msg(format!("Failed to parse the data:{}", e))),
}
}
};
}
// Read JSON objects by row
for line in buffer.split(|&b| b == b'\n') {
if !line.is_empty() {
match serde_json::from_slice::<T>(line) {
Ok(item) => items.push(item),
Err(e) => tracing::warn!("Failed to parse row data:{}", e),
}
}
}
if items.is_empty() {
return Err(Error::msg("Failed to resolve any items"));
}
Ok(items)
}
fn get_raw(&self, key: &Key) -> Result<Vec<u8>> {
let data = self.read_bytes(key)?;
// Delete the wrong file
if data.is_empty() {
let _ = self.del(key);
return Err(Error::msg("the file is empty"));
}
Ok(data)
}
fn put_raw(&self, data: &[u8]) -> Result<Key> {
{
let entries = self.entries.read().map_err(|_| Error::msg("Failed to obtain a read lock"))?;
if entries.len() as u64 >= self.entry_limit {
return Err(Error::msg("the storage limit has been reached"));
}
}
// Generate a new UUID
let uuid = Uuid::new_v4();
let key = Key::new(uuid.to_string(), &self.file_ext, true);
self.write_bytes(&key, data)?;
Ok(key)
}
fn len(&self) -> usize {
self.entries.read().map(|e| e.len()).unwrap_or(0)
}
fn list(&self) -> Vec<Key> {
let entries = match self.entries.read() {
Ok(guard) => guard,
Err(_) => return Vec::new(),
};
// Convert entries to vectors and sort by timestamp
let mut entries_vec: Vec<_> = entries.iter().collect();
entries_vec.sort_by(|a, b| a.1.cmp(b.1));
// Parsing key
entries_vec.iter().map(|(filename, _)| parse_key(filename)).collect()
}
fn del(&self, key: &Key) -> Result<()> {
let path = self.directory.join(key.to_string());
// Delete the file
if let Err(e) = fs::remove_file(&path) {
if e.kind() != io::ErrorKind::NotFound {
return Err(e.into());
}
}
// Remove the entry from the map
let mut entries = self
.entries
.write()
.map_err(|_| Error::msg("Failed to obtain a write lock"))?;
entries.remove(&key.to_string());
Ok(())
}
fn open(&self) -> Result<()> {
// Create a directory (if it doesn't exist)
fs::create_dir_all(&self.directory)?;
// Read existing files
let files = self.list_files()?;
let mut entries = self
.entries
.write()
.map_err(|_| Error::msg("Failed to obtain a write lock"))?;
for file in files {
if let Ok(meta) = file.metadata() {
if let Ok(modified) = meta.modified() {
if let Ok(since_epoch) = modified.duration_since(UNIX_EPOCH) {
entries.insert(file.file_name().to_string_lossy().to_string(), since_epoch.as_nanos() as i64);
}
}
}
}
Ok(())
}
fn delete(&self) -> Result<()> {
fs::remove_dir_all(&self.directory)?;
Ok(())
}
}
+81
View File
@@ -0,0 +1,81 @@
use crate::config::notifier::EventNotifierConfig;
use crate::notifier::EventNotifier;
use common::error::Result;
use ecstore::store::ECStore;
use once_cell::sync::OnceCell;
use std::sync::{Arc, Mutex};
use tracing::{debug, error, info};
/// Global event system
pub struct EventSystem {
/// Event Notifier
notifier: Mutex<Option<EventNotifier>>,
}
impl EventSystem {
/// Create a new event system
pub fn new() -> Self {
Self {
notifier: Mutex::new(None),
}
}
/// Initialize the event system
pub async fn init(&self, store: Arc<ECStore>) -> Result<EventNotifierConfig> {
info!("Initialize the event system");
let notifier = EventNotifier::new(store).await?;
let config = notifier.config().clone();
let mut guard = self
.notifier
.lock()
.map_err(|e| common::error::Error::msg(format!("Failed to acquire locks:{}", e)))?;
*guard = Some(notifier);
debug!("The event system initialization is complete");
Ok(config)
}
/// Send events
pub async fn send_event(&self, event: crate::Event) -> Result<()> {
let guard = self
.notifier
.lock()
.map_err(|e| common::error::Error::msg(format!("Failed to acquire locks:{}", e)))?;
if let Some(notifier) = &*guard {
notifier.send(event).await
} else {
error!("The event system is not initialized");
Err(common::error::Error::msg("The event system is not initialized"))
}
}
/// Shut down the event system
pub async fn shutdown(&self) -> Result<()> {
info!("Shut down the event system");
let mut guard = self
.notifier
.lock()
.map_err(|e| common::error::Error::msg(format!("Failed to acquire locks:{}", e)))?;
if let Some(ref mut notifier) = *guard {
notifier.shutdown().await?;
*guard = None;
info!("The event system is down");
Ok(())
} else {
debug!("The event system has been shut down");
Ok(())
}
}
}
/// A global event system instance
pub static GLOBAL_EVENT_SYS: OnceCell<EventSystem> = OnceCell::new();
/// Initialize the global event system
pub fn init_global_event_system() -> &'static EventSystem {
GLOBAL_EVENT_SYS.get_or_init(EventSystem::new)
}