[ISSUE #465]🔖Enhance the functionality of BrokerStatsManager -3

rocketmq-common/src/common/statistics.rs

@@ -19,3 +19,7 @@ pub mod state_getter;
 pub mod statistics_brief;
 pub mod statistics_item;
 pub mod statistics_item_formatter;
+pub mod statistics_item_scheduled_printer;
+pub mod statistics_item_state_getter;
+pub mod statistics_kind_meta;
+pub mod statistics_manager;

rocketmq-common/src/common/statistics/statistics_item.rs

@@ -104,8 +104,8 @@ impl StatisticsItem {
         &self.invoke_times
     }
 
-    pub fn last_timestamp(&self) -> &AtomicU64 {
-        &self.last_timestamp
+    pub fn last_timestamp(&self) -> u64 {
+        self.last_timestamp.load(Ordering::Relaxed)
     }
 
     pub fn item_accumulate(&self, item_name: &str) -> Option<&AtomicI64> {

rocketmq-common/src/common/statistics/statistics_item_scheduled_printer.rs

@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+use crate::common::statistics::statistics_item::StatisticsItem;
+
+pub struct StatisticsItemScheduledPrinter;
+
+impl StatisticsItemScheduledPrinter {
+    pub fn schedule(&self, _statistics_item: &StatisticsItem) {
+        unimplemented!()
+    }
+
+    pub fn remove(&self, _statistics_item: &StatisticsItem) {
+        unimplemented!()
+    }
+}

rocketmq-common/src/common/statistics/statistics_item_state_getter.rs

@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+use crate::common::statistics::statistics_item::StatisticsItem;
+
+/// `StatisticsItemStateGetter` is a trait that provides a common interface for objects that can
+/// determine the online status of a `StatisticsItem`.
+pub trait StatisticsItemStateGetter {
+    /// The `online` method accepts a reference to a `StatisticsItem` and returns a boolean
+    /// indicating whether the item is online or not.
+    ///
+    /// # Arguments
+    ///
+    /// * `item` - A reference to a `StatisticsItem` whose online status is to be determined.
+    ///
+    /// # Returns
+    ///
+    /// * `bool` - A boolean indicating whether the `StatisticsItem` is online (`true`) or not
+    ///   (`false`).
+    fn online(&self, item: &StatisticsItem) -> bool;
+}

rocketmq-common/src/common/statistics/statistics_kind_meta.rs

@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+use crate::common::statistics::statistics_item_scheduled_printer::StatisticsItemScheduledPrinter;
+
+pub struct StatisticsKindMeta {
+    name: String,
+    item_names: Vec<String>,
+    scheduled_printer: StatisticsItemScheduledPrinter,
+}
+
+impl StatisticsKindMeta {
+    pub fn new(
+        name: String,
+        item_names: Vec<String>,
+        scheduled_printer: StatisticsItemScheduledPrinter,
+    ) -> Self {
+        StatisticsKindMeta {
+            name,
+            item_names,
+            scheduled_printer,
+        }
+    }
+
+    pub fn get_name(&self) -> &str {
+        &self.name
+    }
+
+    pub fn set_name(&mut self, name: String) {
+        self.name = name;
+    }
+
+    pub fn get_item_names(&self) -> &Vec<String> {
+        &self.item_names
+    }
+
+    pub fn set_item_names(&mut self, item_names: Vec<String>) {
+        self.item_names = item_names;
+    }
+
+    pub fn get_scheduled_printer(&self) -> &StatisticsItemScheduledPrinter {
+        &self.scheduled_printer
+    }
+
+    pub fn set_scheduled_printer(&mut self, scheduled_printer: StatisticsItemScheduledPrinter) {
+        self.scheduled_printer = scheduled_printer;
+    }
+}

rocketmq-common/src/common/statistics/statistics_manager.rs

@@ -0,0 +1,175 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+use std::{
+    collections::HashMap,
+    sync::Arc,
+    time::{Duration, SystemTime},
+};
+
+use parking_lot::RwLock;
+use tokio::{task, time::interval};
+
+use crate::{
+    common::statistics::{
+        statistics_item::StatisticsItem, statistics_item_state_getter::StatisticsItemStateGetter,
+        statistics_kind_meta::StatisticsKindMeta,
+    },
+    TimeUtils::get_current_millis,
+};
+
+type StatsTable = Arc<RwLock<HashMap<String, HashMap<String, Arc<StatisticsItem>>>>>;
+
+pub struct StatisticsManager {
+    kind_meta_map: Arc<RwLock<HashMap<String, Arc<StatisticsKindMeta>>>>,
+    brief_metas: Option<Vec<(String, Vec<Vec<i64>>)>>,
+    stats_table: StatsTable,
+    statistics_item_state_getter: Option<Arc<dyn StatisticsItemStateGetter + Send + Sync>>,
+}
+
+impl Default for StatisticsManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl StatisticsManager {
+    const MAX_IDLE_TIME: u64 = 10 * 60 * 1000;
+
+    pub fn new() -> Self {
+        let manager = Self {
+            kind_meta_map: Arc::new(RwLock::new(HashMap::new())),
+            brief_metas: None,
+            stats_table: Arc::new(RwLock::new(HashMap::new())),
+            statistics_item_state_getter: None,
+        };
+        manager.start();
+        manager
+    }
+
+    pub fn with_kind_meta(kind_meta: HashMap<String, Arc<StatisticsKindMeta>>) -> Self {
+        let manager = Self {
+            kind_meta_map: Arc::new(RwLock::new(kind_meta)),
+            brief_metas: None,
+            stats_table: Arc::new(RwLock::new(HashMap::new())),
+            statistics_item_state_getter: None,
+        };
+        manager.start();
+        manager
+    }
+
+    pub fn add_statistics_kind_meta(&self, kind_meta: Arc<StatisticsKindMeta>) {
+        let mut kind_meta_map = self.kind_meta_map.write();
+        kind_meta_map.insert(kind_meta.get_name().to_string(), kind_meta.clone());
+        let mut stats_table = self.stats_table.write();
+        stats_table
+            .entry(kind_meta.get_name().to_string())
+            .or_default();
+    }
+
+    pub fn set_brief_meta(&mut self, brief_metas: Vec<(String, Vec<Vec<i64>>)>) {
+        self.brief_metas = Some(brief_metas);
+    }
+
+    fn start(&self) {
+        let stats_table = self.stats_table.clone();
+        let kind_meta_map = self.kind_meta_map.clone();
+        let statistics_item_state_getter = self.statistics_item_state_getter.clone();
+
+        task::spawn(async move {
+            let mut interval = interval(Duration::from_millis(Self::MAX_IDLE_TIME / 3));
+            let stats_table_clone = stats_table.clone();
+            loop {
+                interval.tick().await;
+
+                let stats_table = stats_table.read();
+                for (_kind, item_map) in stats_table.iter() {
+                    let tmp_item_map: HashMap<_, _> = item_map.clone().into_iter().collect();
+
+                    for item in tmp_item_map.values() {
+                        let last_time_stamp = item.last_timestamp();
+                        if get_current_millis() - last_time_stamp > Self::MAX_IDLE_TIME
+                            && (statistics_item_state_getter.is_none()
+                                || !statistics_item_state_getter.as_ref().unwrap().online(item))
+                        {
+                            // Remove expired item
+                            remove(item, &stats_table_clone, &kind_meta_map);
+                        }
+                    }
+                }
+            }
+        });
+    }
+
+    pub async fn inc(&self, kind: &str, key: &str, item_accumulates: Vec<i64>) -> bool {
+        if let Some(item_map) = self.stats_table.write().get_mut(kind) {
+            if let Some(item) = item_map.get(key) {
+                item.inc_items(item_accumulates.clone());
+                return true;
+            } else {
+                let kind_meta_map = self.kind_meta_map.read();
+                if let Some(kind_meta) = kind_meta_map.get(kind) {
+                    let new_item = Arc::new(StatisticsItem::new(
+                        kind,
+                        key,
+                        kind_meta
+                            .get_item_names()
+                            .iter()
+                            .map(|item| item.as_str())
+                            .collect(),
+                    ));
+                    item_map.insert(key.to_string(), new_item.clone());
+                    new_item.inc_items(item_accumulates);
+                    self.schedule_statistics_item(new_item);
+                    return true;
+                }
+            }
+        }
+        false
+    }
+
+    fn schedule_statistics_item(&self, item: Arc<StatisticsItem>) {
+        let kind_meta_map = self.kind_meta_map.read();
+        if let Some(kind_meta) = kind_meta_map.get(item.stat_kind()) {
+            kind_meta.get_scheduled_printer().schedule(item.as_ref());
+        }
+    }
+
+    pub fn set_statistics_item_state_getter(
+        &mut self,
+        getter: Arc<dyn StatisticsItemStateGetter + Send + Sync>,
+    ) {
+        self.statistics_item_state_getter = Some(getter);
+    }
+}
+
+pub fn remove(
+    item: &StatisticsItem,
+    stats_table: &StatsTable,
+    kind_meta_map: &Arc<RwLock<HashMap<String, Arc<StatisticsKindMeta>>>>,
+) {
+    let stat_kind = item.stat_kind();
+    let stat_object = item.stat_object();
+    if let Some(item_map) = stats_table.write().get_mut(stat_kind) {
+        item_map.remove(stat_object);
+    }
+
+    // Remove from scheduled printer
+    let kind_meta_map = kind_meta_map.write();
+    if let Some(kind_meta) = kind_meta_map.get(stat_kind) {
+        kind_meta.get_scheduled_printer().remove(item);
+    }
+}

rocketmq-common/src/common/stats/stats_item_set.rs

@@ -16,3 +16,9 @@
  */
 #[derive(Debug)]
 pub struct StatsItemSet {}
+
+impl StatsItemSet {
+    pub fn new(_stats_name: String) -> Self {
+        StatsItemSet {}
+    }
+}