php Laravel Thrift使用TMultiplexedProcessor復用端口模式

thrift的使用中一般是一個Server對應一個Processor和一個Transport,如果有多個服務的話,那必須要啟動多個Server,占用多個端口,這種方式顯然不是我們想要的,所以thrift為我們提供了復用端口的方式,通過監聽一個端口就可以提供多種服務,這種方式需要用到兩個類:TMultiplexedProcessor和TMultiplexedProtocol。

創建 2 個 Laravel 項目,thrift-server (服務端) 和 thrift-client (客戶端)

文件目錄

testServer.thrift:

namespace php Rpc.Test

enum Operation {
  ADD = 1,
  SUBTRACT = 2,
  MULTIPLY = 3,
  DIVIDE = 4
}

exception InvalidOperation {
  1: i32 whatOp,
  2: string why
}

service Calculator {
   double calculate(1:double num1, 2:double num2, 3:Operation op) throws (1:InvalidOperation ouch),
   string echoString(1: string str) ,
}

service Echo {
   string echo(1: string str) ,
}

每個service類對應一種服務,服務類下可有多個方法。

thrift-server根目錄生成客戶端類命令:

thrift -r --out ./ --gen php thriftSource/testServer.thrift

將生成的Rpc/Test文件夾剪切到thrift-client項目的Rpc目錄中

在thrift-server根目錄繼續生成服務端類:

thrift -r --out ./ --gen php:server thriftSource/testServer.thrift

根目錄創建Service目錄,存放實現Calculator和Echo類的文件
Service/CalculatorService.php

<?php
/**
 *  實現Calculator服務
 */

namespace Service;

use Rpc\Test\CalculatorIf;
use Rpc\Test\Operation;
use Rpc\Test\InvalidOperation;

class CalculatorService implements CalculatorIf {
    /**
     * @param double $num1
     * @param double $num2
     * @param int $op
     * @return double
     * @throws InvalidOperation
     */
    public function calculate($num1, $num2, $op) {
        switch ($op) {
            case Operation::ADD:
                $val = $num1 + $num2;
                break;
            case Operation::SUBTRACT:
                $val = $num1 - $num2;
                break;
            case Operation::MULTIPLY:
                $val = $num1 * $num2;
                break;
            case Operation::DIVIDE:
                if ($num2 == 0) {
                    $io = new InvalidOperation();
                    $io->whatOp = $op;
                    $io->why = "Cannot divide by 0";
                    throw $io;
                }
                $val = $num1 / $num2;
                break;
            default:
                $io = new InvalidOperation();
                $io->whatOp = $op;
                $io->why = "Invalid Operation";
                throw $io;
        }
        return $val;
    }

    /**
     * @param $string
     */
    public function echoString($string) {
        return $string;
    }
}

Service/EchoService.php:

<?php
/**
 *  實現Echo服務
 */

namespace Service;

use Rpc\Test\EchoIf;

class EchoService implements EchoIf {

    /**
     * @param $string
     */
    public function echo($string) {
        return $string;
    }
}

thrift-server服務端控制器:

<?php
/**
 * 服務端控制器
 */

namespace App\Http\Controllers;

use Rpc\Test\CalculatorProcessor;
use Rpc\Test\EchoProcessor;
use Service\CalculatorService;
use Service\EchoService;
use Illuminate\Http\Request;
use Thrift\Protocol\TBinaryProtocol;
use Thrift\TMultiplexedProcessor;
use Thrift\Transport\TBufferedTransport;
use Thrift\Transport\TPhpStream;
use Thrift\Exception\TException;

class ServerController extends Controller
{
    /**
     * 多個服務
     * @param Request $request
     */
    function handleManyRequest(Request $request) {
        try{
            header('Content-Type', 'application/x-thrift');

            // 初始化多個服務提供者handle
            $calculatorhandler = new CalculatorService();
            $echohandler = new EchoService();

            $multiplexedProcessor = new TMultiplexedProcessor();

            // 創建多個服務Processor
            $calculatorProcessor = new CalculatorProcessor($calculatorhandler);
            $echoProcessor = new EchoProcessor($echohandler);

            // 將服務注冊到TMultiplexedProcessor中
            $multiplexedProcessor->registerProcessor("calculator", $calculatorProcessor);
            $multiplexedProcessor->registerProcessor("echo", $echoProcessor);

            // 初始化數據傳輸方式transport
            $transport = new TBufferedTransport(new TPhpStream(TPhpStream::MODE_R | TPhpStream::MODE_W));
            // 利用該傳輸方式初始化數據傳輸格式protocol
            $protocol = new TBinaryProtocol($transport, true, true);

            // 開始服務
            $transport->open();
            $multiplexedProcessor->process($protocol, $protocol);
            $transport->close();
        } catch (TException $tx) {
            print 'TException: '.$tx->getMessage()."\n";
        }
    }
}

配置post方式路由

Route::post('/rpc/server', 'ServerController@handleManyRequest');

配置虛擬主機 8081 端口監聽thrift-server服務,80端口監聽thrift-client服務

thrift-client客戶端控制器:

<?php
/**
 * 客戶端控制器
 */

namespace App\Http\Controllers;

use Rpc\Test\Operation;
use Rpc\Test\CalculatorClient;
use Rpc\Test\EchoClient;
use Illuminate\Http\Request;
use Thrift\Protocol\TBinaryProtocol;
use Thrift\Protocol\TMultiplexedProtocol;
use Thrift\Transport\THttpClient;
use Thrift\Transport\TBufferedTransport;
use Thrift\Exception\TException;

class ClientController extends Controller
{
    /**
     * 多服務
     * @param Request $request
     */
    function handleManyRequest(Request $request) {
        try{
            // 定義連接
            $socket = new THttpClient('127.0.0.1', 8081, '/rpc/server');

            // 創建transport
            $transport = new TBufferedTransport($socket, 1024, 1024);
            // 基于Transport創建Protocol
            $protocol = new TBinaryProtocol($transport);

            // 創建Client調用服務接口的方法
            $calculatorClient = new  CalculatorClient(new TMultiplexedProtocol($protocol, "calculator"));
            $echoClient = new  EchoClient(new TMultiplexedProtocol($protocol, "echo"));

            // 開啟
            $transport->open();

            // 調用接口方法
            $sum = $calculatorClient->calculate(1, 2, Operation::ADD);
            print "calculator service -> calculate function -> 1+2=$sum </br>";

            $test = $calculatorClient->echoString('this it test');
            print "calculator service -> echoString function -> echoString:$test </br>";

            $echoString = $echoClient->echo('echo method');
            print "echo service -> echo function -> echo:$echoString\n\r";

            $transport->close();

        } catch (TException $tx) {
            print 'TException: '.$tx->getMessage()."\n";
        }
    }
}

由此可客戶端可調用服務端的方法,實現通訊:


postman測試thrift

注意:
1、根目錄新建目錄需配置composer.json中的psr-4
2、取消http/kernel.php中web中間件內容

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