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// 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. | |
#[macro_use] | |
extern crate clap; | |
extern crate thrift; | |
extern crate thrift_tutorial; | |
use thrift::protocol::{TCompactInputProtocol, TCompactOutputProtocol}; | |
use thrift::transport::{ReadHalf, TFramedReadTransport, TFramedWriteTransport, TIoChannel, | |
TTcpChannel, WriteHalf}; | |
use thrift_tutorial::shared::TSharedServiceSyncClient; | |
use thrift_tutorial::tutorial::{CalculatorSyncClient, Operation, TCalculatorSyncClient, Work}; | |
fn main() { | |
match run() { | |
Ok(()) => println!("tutorial client ran successfully"), | |
Err(e) => { | |
println!("tutorial client failed with error {:?}", e); | |
std::process::exit(1); | |
} | |
} | |
} | |
fn run() -> thrift::Result<()> { | |
let options = clap_app!(rust_tutorial_client => | |
(version: "0.1.0") | |
(author: "Apache Thrift Developers <dev@thrift.apache.org>") | |
(about: "Thrift Rust tutorial client") | |
(@arg host: --host +takes_value "host on which the tutorial server listens") | |
(@arg port: --port +takes_value "port on which the tutorial server listens") | |
); | |
let matches = options.get_matches(); | |
// get any passed-in args or the defaults | |
let host = matches.value_of("host").unwrap_or("127.0.0.1"); | |
let port = value_t!(matches, "port", u16).unwrap_or(9090); | |
// build our client and connect to the host:port | |
let mut client = new_client(host, port)?; | |
// alright! | |
// let's start making some calls | |
// let's start with a ping; the server should respond | |
println!("ping!"); | |
client.ping()?; | |
// simple add | |
println!("add"); | |
let res = client.add(1, 2)?; | |
println!("added 1, 2 and got {}", res); | |
let logid = 32; | |
for logid in 33..53 { | |
// let's do...a multiply! | |
let res = client | |
.calculate(logid, Work::new(7, 8, Operation::MULTIPLY, None))?; | |
// println!("multiplied 7 and 8 and got {}", res); | |
} | |
// let's get the log for it | |
let res = client.get_struct(32)?; | |
println!("got log {:?} for operation {}", res, logid); | |
// ok - let's be bad :( | |
// do a divide by 0 | |
// logid doesn't matter; won't be recorded | |
let res = client.calculate(77, Work::new(2, 0, Operation::DIVIDE, "we bad".to_owned())); | |
// we should have gotten an exception back | |
match res { | |
Ok(v) => panic!("should not have succeeded with result {}", v), | |
Err(e) => println!("divide by zero failed with error {:?}", e), | |
} | |
// let's do a one-way call | |
println!("zip"); | |
client.zip()?; | |
// and then close out with a final ping | |
println!("ping!"); | |
client.ping()?; | |
Ok(()) | |
} | |
type ClientInputProtocol = TCompactInputProtocol<TFramedReadTransport<ReadHalf<TTcpChannel>>>; | |
type ClientOutputProtocol = TCompactOutputProtocol<TFramedWriteTransport<WriteHalf<TTcpChannel>>>; | |
fn new_client | |
( | |
host: &str, | |
port: u16, | |
) -> thrift::Result<CalculatorSyncClient<ClientInputProtocol, ClientOutputProtocol>> { | |
let mut c = TTcpChannel::new(); | |
// open the underlying TCP stream | |
println!("connecting to tutorial server on {}:{}", host, port); | |
c.open(&format!("{}:{}", host, port))?; | |
// clone the TCP channel into two halves, one which | |
// we'll use for reading, the other for writing | |
let (i_chan, o_chan) = c.split()?; | |
// wrap the raw sockets (slow) with a buffered transport of some kind | |
let i_tran = TFramedReadTransport::new(i_chan); | |
let o_tran = TFramedWriteTransport::new(o_chan); | |
// now create the protocol implementations | |
let i_prot = TCompactInputProtocol::new(i_tran); | |
let o_prot = TCompactOutputProtocol::new(o_tran); | |
// we're done! | |
Ok(CalculatorSyncClient::new(i_prot, o_prot)) | |
} |
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