[ISSUE #76] ✨ Namesrv supports get all topic list from name server(request code 206)

README.md

@@ -95,7 +95,7 @@ Feature list:
 | Get broker cluster info                | 106          | :sparkling_heart: :white_check_mark: |        |
 | Wipe write perm of boker               | 205          | :sparkling_heart: :white_check_mark: |        |
 | Add write perm of brober               | 327          | :sparkling_heart: :white_check_mark: |        |
-| Get all topic list from name server    | 206          | :broken_heart: :x: |        |
+| Get all topic list from name server    | 206          | :sparkling_heart: :white_check_mark: |        |
 | Delete topic in name server            | 216          | :broken_heart: :x: |        |
 | Register topic in name server          | 217          | :broken_heart: :x: |        |
 | Get topics by cluster                  | 224          | :broken_heart: :x: |        |

rocketmq-namesrv/README.md

@@ -14,30 +14,30 @@ Feature list:
 
 - **Perfect support**: :sparkling_heart: :white_check_mark:
 
-| Feature                                | request code | Support        | remark |
-| -------------------------------------- | ------------ | -------------- | ------ |
-| Put KV Config                          | 100          | :sparkling_heart: :white_check_mark: |  |
+| Feature                                | request code | Support                              | remark |
+| -------------------------------------- | ------------ |--------------------------------------|--------|
+| Put KV Config                          | 100          | :sparkling_heart: :white_check_mark: |        |
 | Get KV Config                          | 101          | :sparkling_heart: :white_check_mark: |        |
 | Delete KV Config                       | 102          | :sparkling_heart: :white_check_mark: |        |
-| Get kv list by namespace               | 219          | :broken_heart: :x: |        |
-| Query Data Version                     | 322          | :sparkling_heart: :white_check_mark:|        |
-| Register Broker                        | 103          | :heart: :white_check_mark: |        |
-| Unregister Broker                      | 104          | :broken_heart: :x: |        |
+| Get kv list by namespace               | 219          | :broken_heart: :x:                   |        |
+| Query Data Version                     | 322          | :sparkling_heart: :white_check_mark: |        |
+| Register Broker                        | 103          | :heart: :white_check_mark:           |        |
+| Unregister Broker                      | 104          | :broken_heart: :x:                   |        |
 | Broker Heartbeat                       | 904          | :sparkling_heart: :white_check_mark: |        |
 | Get broker member_group                | 901          | :sparkling_heart: :white_check_mark: |        |
 | Get broker cluster info                | 106          | :sparkling_heart: :white_check_mark: |        |
 | Wipe write perm of boker               | 205          | :sparkling_heart: :white_check_mark: |        |
 | Add write perm of brober               | 327          | :sparkling_heart: :white_check_mark: |        |
-| Get all topic list from name server    | 206          | :broken_heart: :x: |        |
-| Delete topic in name server            | 216          | :broken_heart: :x: |        |
-| Register topic in name server          | 217          | :broken_heart: :x: |        |
-| Get topics by cluster                  | 224          | :broken_heart: :x: |        |
-| Get system topic list from name server | 304          | :broken_heart: :x: |        |
-| Get unit topic list                    | 311          | :broken_heart: :x: |        |
-| Get has unit sub topic list            | 312          | :broken_heart: :x: |        |
-| Get has unit sub ununit topic list     | 313          | :broken_heart: :x: |        |
-| Update name server config              | 318          | :broken_heart: :x: |        |
-| Get name server config                 | 318          | :broken_heart: :x: |        |
+| Get all topic list from name server    | 206          | :sparkling_heart: :white_check_mark: |        |
+| Delete topic in name server            | 216          | :broken_heart: :x:                   |        |
+| Register topic in name server          | 217          | :broken_heart: :x:                   |        |
+| Get topics by cluster                  | 224          | :broken_heart: :x:                   |        |
+| Get system topic list from name server | 304          | :broken_heart: :x:                   |        |
+| Get unit topic list                    | 311          | :broken_heart: :x:                   |        |
+| Get has unit sub topic list            | 312          | :broken_heart: :x:                   |        |
+| Get has unit sub ununit topic list     | 313          | :broken_heart: :x:                   |        |
+| Update name server config              | 318          | :broken_heart: :x:                   |        |
+| Get name server config                 | 318          | :broken_heart: :x:                   |        |
 
 ## Getting Started
 

rocketmq-namesrv/src/processor/default_request_processor.rs

@@ -83,6 +83,9 @@ impl RequestProcessor for DefaultRequestProcessor {
             Some(RequestCode::GetBrokerClusterInfo) => self.get_broker_cluster_info(request),
             Some(RequestCode::WipeWritePermOfBroker) => self.wipe_write_perm_of_broker(request),
             Some(RequestCode::AddWritePermOfBroker) => self.add_write_perm_of_broker(request),
+            Some(RequestCode::GetAllTopicListFromNameserver) => {
+                self.get_all_topic_list_from_nameserver(request)
+            }
 
             _ => RemotingCommand::create_response_command_with_code(
                 RemotingSysResponseCode::SystemError,
@@ -348,6 +351,18 @@ impl DefaultRequestProcessor {
             AddWritePermOfBrokerResponseHeader::new(add_topic_cnt),
         )))
     }
+
+    fn get_all_topic_list_from_nameserver(&mut self, _request: RemotingCommand) -> RemotingCommand {
+        let rd_lock = self.route_info_manager.read();
+        if rd_lock.namesrv_config.enable_all_topic_list {
+            let topics = rd_lock.get_all_topic_list();
+            drop(rd_lock); //release lock
+            return RemotingCommand::create_response_command()
+                .set_body(Some(Bytes::from(topics.encode())));
+        }
+        RemotingCommand::create_response_command_with_code(RemotingSysResponseCode::SystemError)
+            .set_remark(Some(String::from("disable")))
+    }
 }
 
 fn extract_register_topic_config_from_request(

rocketmq-namesrv/src/route/route_info_manager.rs

@@ -33,6 +33,7 @@ use rocketmq_remoting::{
     protocol::{
         body::{
             broker_body::{broker_member_group::BrokerMemberGroup, cluster_info::ClusterInfo},
+            topic::topic_list::TopicList,
             topic_info_wrapper::topic_config_wrapper::TopicConfigAndMappingSerializeWrapper,
         },
         header::namesrv::brokerid_change_request_header::NotifyMinBrokerIdChangeRequestHeader,
@@ -675,4 +676,17 @@ impl RouteInfoManager {
         }
         topic_cnt
     }
+
+    pub(crate) fn get_all_topic_list(&self) -> TopicList {
+        let topics = self
+            .topic_queue_table
+            .keys()
+            .cloned()
+            .collect::<Vec<String>>();
+
+        TopicList {
+            topic_list: topics,
+            broker_addr: None,
+        }
+    }
 }

rocketmq-remoting/src/protocol/body.rs

@@ -17,4 +17,5 @@
 
 pub mod broker_body;
 pub mod kv_table;
+pub mod topic;
 pub mod topic_info_wrapper;

rocketmq-remoting/src/protocol/body/topic.rs

@@ -0,0 +1,18 @@
+/*
+ * 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.
+ */
+
+pub mod topic_list;

rocketmq-remoting/src/protocol/body/topic/topic_list.rs

@@ -0,0 +1,30 @@
+/*
+ * 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 serde::{Deserialize, Serialize};
+
+use crate::protocol::RemotingSerializable;
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+#[serde(rename_all = "camelCase")]
+pub struct TopicList {
+    pub topic_list: Vec<String>,
+    pub broker_addr: Option<String>,
+}
+
+impl RemotingSerializable for TopicList {
+    type Output = TopicList;
+}