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use std::convert::{TryFrom, TryInto}; use std::fmt::Display; use tracing::debug; use dataplane::core::Encoder; use dataplane::core::Decoder; use fluvio_sc_schema::objects::{Metadata, AllCreatableSpec}; use fluvio_sc_schema::AdminRequest; use fluvio_socket::FlvSocketError; use fluvio_socket::AllMultiplexerSocket; use fluvio_future::native_tls::AllDomainConnector; use crate::client::{ClientConfig, VersionedSerialSocket, SerialFrame}; use crate::{FluvioError, FluvioConfig}; use crate::metadata::objects::{ListResponse, ListSpec, DeleteSpec, CreateRequest}; use crate::config::ConfigFile; /// An interface for managing a Fluvio cluster /// /// Most applications will not require administrator functionality. The /// `FluvioAdmin` interface is used to create, edit, and manage Topics /// and other operational items. Think of the difference between regular /// clients of a Database and its administrators. Regular clients may be /// applications which are reading and writing data to and from tables /// that exist in the database. Database administrators would be the /// ones actually creating, editing, or deleting tables. The same thing /// goes for Fluvio administrators. /// /// If you _are_ writing an application whose purpose is to manage a /// Fluvio cluster for you, you can gain access to the `FluvioAdmin` /// client via the regular [`Fluvio`] client, or through the [`connect`] /// or [`connect_with_config`] functions. /// /// # Example /// /// Note that this may fail if you are not authorized as a Fluvio /// administrator for the cluster you are connected to. /// /// ```no_run /// # use fluvio::{Fluvio, FluvioError}; /// # async fn do_get_admin(fluvio: &mut Fluvio) -> Result<(), FluvioError> { /// let admin = fluvio.admin().await; /// # Ok(()) /// # } /// ``` /// /// [`Fluvio`]: ./struct.Fluvio.html /// [`connect`]: ./struct.FluvioAdmin.html#method.connect /// [`connect_with_config`]: ./struct.FluvioAdmin.html#method.connect_with_config pub struct FluvioAdmin(VersionedSerialSocket); impl FluvioAdmin { pub(crate) fn new(client: VersionedSerialSocket) -> Self { Self(client) } /// Creates a new admin connection using the current profile from `~/.fluvio/config` /// /// This will attempt to read a Fluvio cluster configuration from /// your `~/.fluvio/config` file, or create one with default settings /// if you don't have one. If you want to specify a configuration, /// see [`connect_with_config`] instead. /// /// The admin interface requires you to have administrator privileges /// on the cluster which you are connecting to. If you don't have the /// appropriate privileges, this connection will fail. /// /// # Example /// /// ```no_run /// # use fluvio::{FluvioAdmin, FluvioError}; /// # async fn do_connect() -> Result<(), FluvioError> { /// let admin = FluvioAdmin::connect().await?; /// # Ok(()) /// # } /// ``` /// /// [`connect_with_config`]: ./struct.FluvioAdmin.html#method.connect_with_config pub async fn connect() -> Result<Self, FluvioError> { let config_file = ConfigFile::load_default_or_new()?; let cluster_config = config_file.config().current_cluster()?; Self::connect_with_config(cluster_config).await } /// Creates a new admin connection using custom configurations /// /// The admin interface requires you to have administrator privileges /// on the cluster which you are connecting to. If you don't have the /// appropriate privileges, this connection will fail. /// /// # Example /// /// ```no_run /// # use fluvio::{FluvioAdmin, FluvioError}; /// use fluvio::config::ConfigFile; /// # async fn do_connect_with_config() -> Result<(), FluvioError> { /// let config_file = ConfigFile::load_default_or_new()?; /// let fluvio_config = config_file.config().current_cluster().unwrap(); /// let admin = FluvioAdmin::connect_with_config(fluvio_config).await?; /// # Ok(()) /// # } /// ``` pub async fn connect_with_config(config: &FluvioConfig) -> Result<Self, FluvioError> { use std::sync::Arc; let connector = Arc::new(AllDomainConnector::try_from(config.tls.clone())?); let config = ClientConfig::new(&config.addr, connector); let inner_client = config.connect().await?; debug!("connected to cluster at: {}", inner_client.config().addr()); let (socket, config, versions) = inner_client.split(); let socket = AllMultiplexerSocket::shared(socket); let versioned_socket = VersionedSerialSocket::new(socket, config, versions); Ok(Self(versioned_socket)) } async fn send_receive<R>(&mut self, request: R) -> Result<R::Response, FlvSocketError> where R: AdminRequest + Send + Sync, { self.0.send_receive(request).await } /// create new object pub async fn create<S>( &mut self, name: String, dry_run: bool, spec: S, ) -> Result<(), FluvioError> where S: Into<AllCreatableSpec>, { let create_request = CreateRequest { name, dry_run, spec: spec.into(), }; self.send_receive(create_request).await?.as_result()?; Ok(()) } /// delete object by key /// key is depend on spec, most are string but some allow multiple types pub async fn delete<S, K>(&mut self, key: K) -> Result<(), FluvioError> where S: DeleteSpec, K: Into<S::DeleteKey>, { let delete_request = S::into_request(key); self.send_receive(delete_request).await?.as_result()?; Ok(()) } pub async fn list<S, F>(&mut self, filters: F) -> Result<Vec<Metadata<S>>, FluvioError> where S: ListSpec + Encoder + Decoder, S::Status: Encoder + Decoder, F: Into<Vec<S::Filter>>, ListResponse: TryInto<Vec<Metadata<S>>>, <ListResponse as TryInto<Vec<Metadata<S>>>>::Error: Display, { use std::io::Error; use std::io::ErrorKind; let list_request = S::into_list_request(filters.into()); let response = self.send_receive(list_request).await?; response .try_into() .map_err(|err| Error::new(ErrorKind::Other, format!("can't convert: {}", err)).into()) } /* /// Connect to replica leader for a topic/partition async fn find_replica_for_topic_partition( &mut self, topic: &str, partition: i32, ) -> Result<Self::Leader, ClientError> { debug!( "trying to find replica for topic: {}, partition: {}", topic, partition ); let topic_comp_resp = self.get_topic_composition(topic).await?; trace!("topic composition: {:#?}", topic_comp_resp); let mut topics_resp = topic_comp_resp.topics; let spus_resp = topic_comp_resp.spus; // there must be one topic in reply if topics_resp.len() != 1 { return Err(ClientError::IoError(IoError::new( ErrorKind::InvalidData, format!("topic error: expected 1 topic, found {}", topics_resp.len()), ))); } let topic_resp = topics_resp.remove(0); if topic_resp.error_code != FlvErrorCode::None { if topic_resp.error_code == FlvErrorCode::TopicNotFound { return Err(ClientError::TopicNotFound(topic.to_owned())); } else { return Err(ClientError::IoError(IoError::new( ErrorKind::InvalidData, format!( "error during topic lookup: {}", topic_resp.error_code.to_sentence() ), ))); } } // lookup leader for partition_resp in topic_resp.partitions { if partition_resp.partition_idx == partition { // check for errors if partition_resp.error_code != FlvErrorCode::None { return Err(ClientError::IoError(IoError::new( ErrorKind::InvalidData, format!( "topic-composition partition error: {}", topic_resp.error_code.to_sentence() ), ))); } // traverse spus and find leader let leader_id = partition_resp.leader_id; for spu_resp in &spus_resp { if spu_resp.spu_id == leader_id { // check for errors if spu_resp.error_code != FlvErrorCode::None { return Err(ClientError::IoError(IoError::new( ErrorKind::InvalidData, format!( "problem with partition look up {}:{} error: {}", topic, partition, topic_resp.error_code.to_sentence() ), ))); } debug!("spu {}/{}: is leader", spu_resp.host, spu_resp.port); let mut leader_client_config = self.0.config().clone(); let addr: ServerAddress = spu_resp.into(); leader_client_config.set_addr(addr.to_string()); let client = leader_client_config.connect().await?; let leader_config = ReplicaLeaderConfig::new(topic.to_owned(), partition); return Ok(SpuReplicaLeader::new(leader_config, client)); } } } } Err(ClientError::PartitionNotFound(topic.to_owned(), partition)) } */ }