examples.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 914b97130aed191518791045b93b6f858ef5a139 Maintainer: seros Status: ready -->
<!-- Reviewed: no -->

<chapter xml:id="yar.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 &reftitle.examples;
 <example>
  <title>Ejemplo de servidor de Yar</title>
  <programlisting role="php">
<![CDATA[
<?php

/* Se asume que a esta página se puede acceder mediante http://example.com/operator.php */

class Operator {

    /**
     * Add two operands
     * @param interge 
     * @return interge
     */
    public function add($a, $b) {
        return $this->_add($a, $b);
    }

    /**
     * Sub 
     */
    public function sub($a, $b) {
        return $a - $b;
    }

    /**
     * Mul
     */
    public function mul($a, $b) {
        return $a * $b;
    }

    /**
     * Protected methods will not be exposed
     * @param interge 
     * @return interge
     */
    protected function _add($a, $b) {
        return $a + $b;
    }
}

$servidor = new Yar_Server(new Operator());
$servidor->handle();
?>
]]>
  </programlisting>
 </example>
 
 <example>
  <title>Acceder al servidor desde el navegador (petición GET)</title>
  &example.outputs.similar;
  <mediaobject>
   <alt>Información del servidor de Yar</alt>
   <imageobject>
    <imagedata fileref="en/reference/yar/image/yar.png" scalefit="1" width="700px" />
   </imageobject>
  </mediaobject>
 </example>
 
 <example>
  <title>Ejemplo de cliente de Yar</title>
  <programlisting role="php">
<![CDATA[
<?php
$cliente = new yar_client("http://example.com/operator.php");

/* llamar directamente */
var_dump($cliente->add(1, 2));

/* llamar mediante el método 'call' */
var_dump($cliente->call("add", array(3, 2)));


/* __add no puede ser llamado */
var_dump($cliente->_add(1, 2));
?>
]]>
  </programlisting>
  &example.outputs.similar;
  <screen>
<![CDATA[
int(3)
int(5)
PHP Fatal error:  Uncaught exception 'Yar_Server_Exception' with message 'call to api Operator::_add() failed' in *
]]>
  </screen>
 </example>
 
 <example>
  <title>Ejemplo de cliente concurrente de Yar</title>
  <programlisting role="php">
<![CDATA[
<?php
function callback($ret, $callinfo) {
    echo $callinfo['method'] , " result: ", $ret , "\n";
}

/* registrar las llamadas asíncronas a servicios remotos */
Yar_Concurrent_Client::call("http://example.com/operator.php", "add", array(1, 2), "callback");
Yar_Concurrent_Client::call("http://example.com/operator.php", "sub", array(2, 1), "callback");
Yar_Concurrent_Client::call("http://example.com/operator.php", "mul", array(2, 2), "callback");

/* enviar todas las peticiones y esperar una respuesta */
Yar_Concurrent_Client::loop();
?>
]]>
  </programlisting>
  &example.outputs.similar;
  <screen>
<![CDATA[
mul result: 4
sub result: 1
add result: 3
]]>
  </screen>
 </example>
 
</chapter>

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