Things about php using thrift for server-side development

wget http://www.apache.org/dyn/closer.cgi?path=/thrift/0.9.3/thrift-0.9.3.tar.gz
tar xvf thrift-0.9.3.tar.gz
cd thrift-0.9.3

// 创建./configure文件
./bootstrap.sh
// 配置并安装
./configure
make
// 检测是否有问题，如果机子没有安装python和java等可能会报错，不过本文主要讲php，安了php环境就行
make check
make install

include "shared.thrift"
namespace php tutorial
typedef i32 MyInteger
const i32 INT32CONSTANT = 9853
const map<string,string> MAPCONSTANT = {&#39;hello&#39;:&#39;world&#39;, &#39;goodnight&#39;:&#39;moon&#39;}
enum Operation {
  ADD = 1,
  SUBTRACT = 2,
  MULTIPLY = 3,
  DIVIDE = 4
}
struct Work {
  1: i32 num1 = 0,
  2: i32 num2,
  3: Operation op,
  4: optional string comment,
}
exception InvalidOperation {
  1: i32 whatOp,
  2: string why
}
service Calculator extends shared.SharedService {
   void ping(),
   i32 add(1:i32 num1, 2:i32 num2),
   i32 calculate(1:i32 logid, 2:Work w) throws (1:InvalidOperation ouch),
   oneway void zip()
}

namespace php shared
struct SharedStruct {
  1: i32 key
  2: string value
}
service SharedService {
  SharedStruct getStruct(1: i32 key)
}

<?php
namespace tutorial\php;
ini_set(&#39;display_errors&#39;,1);
error_reporting(E_ALL);
// 引入类自动加载文件
require_once __DIR__.&#39;/../../lib/php/lib/Thrift/ClassLoader/ThriftClassLoader.php&#39;;
// 载入自动加载类
use Thrift\ClassLoader\ThriftClassLoader;
// 定义根据.thrift文件生成的php文件
$GEN_DIR = realpath(dirname(__FILE__).&#39;/..&#39;).&#39;/gen-php&#39;;
// 注册thrift服务
$loader = new ThriftClassLoader();
$loader->registerNamespace(&#39;Thrift&#39;, __DIR__ . &#39;/../../lib/php/lib&#39;);
$loader->registerDefinition(&#39;shared&#39;, $GEN_DIR);
$loader->registerDefinition(&#39;tutorial&#39;, $GEN_DIR);
$loader->register();
if (php_sapi_name() == &#39;cli&#39;) {
  ini_set("display_errors", "stderr");
}
use Thrift\Protocol\TBinaryProtocol; // 二进制格式打包解包
use Thrift\Transport\TPhpStream; // php流输入输出
use Thrift\Transport\TBufferedTransport; // 使用缓存
// 开始服务端逻辑
class CalculatorHandler implements \tutorial\CalculatorIf {
  protected $log = array();
  public function ping() {
    error_log("ping()");
  }
  // 相加
  public function add($num1, $num2) {
    error_log("add({$num1}, {$num2})");
    return $num1 + $num2;
  }
  // 枚举计算类型
  public function calculate($logid, \tutorial\Work $w) {
    error_log("calculate({$logid}, {{$w->op}, {$w->num1}, {$w->num2}})");
    switch ($w->op) {
      case \tutorial\Operation::ADD:
        $val = $w->num1 + $w->num2;
        break;
      case \tutorial\Operation::SUBTRACT:
        $val = $w->num1 - $w->num2;
        break;
      case \tutorial\Operation::MULTIPLY:
        $val = $w->num1 * $w->num2;
        break;
      case \tutorial\Operation::DIVIDE:
        if ($w->num2 == 0) {
          $io = new \tutorial\InvalidOperation();
          $io->whatOp = $w->op;
          $io->why = "Cannot divide by 0";
          throw $io;
        }
        $val = $w->num1 / $w->num2;
        break;
      default:
        $io = new \tutorial\InvalidOperation();
        $io->whatOp = $w->op;
        $io->why = "Invalid Operation";
        throw $io;
    }
    $log = new \shared\SharedStruct();
    $log->key = $logid;
    $log->value = (string)$val;
    $this->log[$logid] = $log;
    return $val;
  }
  public function getStruct($key) {
    error_log("getStruct({$key})");
    // This actually doesn&#39;t work because the PHP interpreter is
    // restarted for every request.
    //return $this->log[$key];
    return new \shared\SharedStruct(array("key" => $key, "value" => "PHP is stateless!"));
  }
  public function zip() {
    error_log("zip()");
  }
};
header(&#39;Content-Type&#39;, &#39;application/x-thrift&#39;);
if (php_sapi_name() == &#39;cli&#39;) {
  echo "\r\n";
}
$handler = new CalculatorHandler();
$processor = new \tutorial\CalculatorProcessor($handler);
// 客户端和服务端在同一个输入输出流上
//1) cli 方式：php Client.php | php Server.php 
//2) cgi 方式：利用Apache或nginx监听http请求，调用php-fpm处理，将请求转换为PHP标准输入输出流
$transport = new TBufferedTransport(new TPhpStream(TPhpStream::MODE_R | TPhpStream::MODE_W));
$protocol = new TBinaryProtocol($transport, true, true);
$transport->open();
$processor->process($protocol, $protocol);
$transport->close();
//作为cli方式运行，非阻塞方式监听，基于libevent实现，非官方实现
//$transportFactory = new TBufferedTransportFactory();
//$protocolFactory = new TBinaryProtocolFactory(true, true);
//$transport = new TNonblockingServerSocket(&#39;localhost&#39;, 9090);
//$server = new TNonblockingServer($processor, $transport, $transportFactory, $transportFactory, $protocolFactory, $protocolFactory);
//$server->serve();
//作为cli方式运行，监听端口，官方实现
//$transportFactory = new TBufferedTransportFactory();
//$protocolFactory = new TBinaryProtocolFactory(true, true);
//$transport = new TServerSocket(&#39;localhost&#39;, 9090);
//$server = new TSimpleServer($processor, $transport, $transportFactory, $transportFactory, $protocolFactory, $protocolFactory);
//$server->serve();

<?php
namespace tutorial\php;
error_reporting(E_ALL);
require_once __DIR__.&#39;/../../lib/php/lib/Thrift/ClassLoader/ThriftClassLoader.php&#39;;
use Thrift\ClassLoader\ThriftClassLoader;
$GEN_DIR = realpath(dirname(__FILE__).&#39;/..&#39;).&#39;/gen-php&#39;;
$loader = new ThriftClassLoader();
$loader->registerNamespace(&#39;Thrift&#39;, __DIR__ . &#39;/../../lib/php/lib&#39;);
$loader->registerDefinition(&#39;shared&#39;, $GEN_DIR);
$loader->registerDefinition(&#39;tutorial&#39;, $GEN_DIR);
$loader->register();
use Thrift\Protocol\TBinaryProtocol;
use Thrift\Transport\TSocket;
use Thrift\Transport\THttpClient;
use Thrift\Transport\TBufferedTransport;
use Thrift\Exception\TException;
// 以上配置跟服务端类似
try {
  if (array_search(&#39;--http&#39;, $argv)) {
  // 使用http方式连接
    $socket = new THttpClient(&#39;localhost&#39;, 8080, &#39;/php/PhpServer.php&#39;);
  } else {
    // 使用socket连接
    $socket = new TSocket(&#39;localhost&#39;, 9090);
  }
  $transport = new TBufferedTransport($socket, 1024, 1024);
  $protocol = new TBinaryProtocol($transport);
  $client = new \tutorial\CalculatorClient($protocol);
  $transport->open();
  $client->ping();
  print "ping()\n";
  $sum = $client->add(1,1);
  print "1+1=$sum\n";
  // 调试异常情况
  $work = new \tutorial\Work();
  $work->op = \tutorial\Operation::DIVIDE;
  $work->num1 = 1;
  $work->num2 = 0;
  try {
    $client->calculate(1, $work);
    print "Whoa! We can divide by zero?\n";
  } catch (\tutorial\InvalidOperation $io) {
    print "InvalidOperation: $io->why\n";
  }
  $work->op = \tutorial\Operation::SUBTRACT;
  $work->num1 = 15;
  $work->num2 = 10;
  $diff = $client->calculate(1, $work);
  print "15-10=$diff\n";
  $log = $client->getStruct(1);
  print "Log: $log->value\n";
  $transport->close();
} catch (TException $tx) {
  print &#39;TException: &#39;.$tx->getMessage()."\n";
}

// php client.php --http
ping()
1+1=2
InvalidOperation: Cannot divide by 0
15-10=5
Log: PHP is stateless!