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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.
*/
module async_client;
import std.exception;
import std.stdio;
import thrift.async.libevent;
import thrift.async.socket;
import thrift.base;
import thrift.codegen.async_client;
import thrift.protocol.binary;
import thrift.transport.buffered;
import tutorial.Calculator;
import tutorial.tutorial_types;
void main() {
auto asyncManager = new TLibeventAsyncManager;
// If we are done, gracefully stop the async manager to avoid hanging on
// appplication shutdown.
scope (exit) asyncManager.stop();
auto socket = new TAsyncSocket(asyncManager, "localhost", 9090);
auto client = new TAsyncClient!Calculator(
socket,
new TBufferedTransportFactory,
new TBinaryProtocolFactory!TBufferedTransport
);
socket.open();
// Invoke all the methods.
auto pingResult = client.ping();
auto addResult = client.add(1, 1);
auto work = Work();
work.op = Operation.DIVIDE;
work.num1 = 1;
work.num2 = 0;
auto quotientResult = client.calculate(1, work);
work.op = Operation.SUBTRACT;
work.num1 = 15;
work.num2 = 10;
auto diffResult = client.calculate(1, work);
auto logResult = client.getStruct(1);
// Await the responses.
pingResult.waitGet();
writeln("ping()");
int sum = addResult.waitGet();
writefln("1 + 1 = %s", sum);
try {
quotientResult.waitGet();
writeln("Whoa we can divide by 0");
} catch (InvalidOperation io) {
writeln("Invalid operation: " ~ io.why);
}
writefln("15 - 10 = %s", diffResult.waitGet());
// TFuture is implicitly convertible to the result type via »alias this«,
// for which it (eagerly, of course) awaits completion.
writefln("Check log: %s", logResult.value);
}
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