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<?php
/*
* This file is part of the symfony framework.
*
* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
/**
* RokCommon_Service_Container_Dumper_Php dumps a service container as a PHP class.
*
* @package symfony
* @subpackage dependency_injection
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
* @version SVN: $Id: Php.php 10831 2013-05-29 19:32:17Z btowles $
*/
class RokCommon_Service_Container_Dumper_Php extends RokCommon_Service_Container_AbstractDumper
{
/**
* Dumps the service container as a PHP class.
*
* Available options:
*
* * class: The class name
* * base_class: The base class name
*
* @param array $options An array of options
*
* @return string A PHP class representing of the service container
*/
public function dump(array $options = array())
{
$options = array_merge(array(
'class' => 'ProjectServiceContainer',
'base_class' => 'RokCommon_Service_ContainerImpl',
), $options);
return
$this->startClass($options['class'], $options['base_class']).
$this->addConstructor().
$this->addServices().
$this->addDefaultParametersMethod().
$this->endClass()
;
}
protected function addServiceInclude($id, $definition)
{
if (null !== $definition->getFile())
{
return sprintf(" require_once %s;\n\n", $this->dumpValue($definition->getFile()));
}
}
protected function addServiceShared($id, $definition)
{
if ($definition->isShared())
{
return <<<EOF
if (isset(\$this->shared['$id'])) return \$this->shared['$id'];
EOF;
}
}
protected function addServiceReturn($id, $definition)
{
if ($definition->isShared())
{
return <<<EOF
return \$this->shared['$id'] = \$instance;
}
EOF;
}
else
{
return <<<EOF
return \$instance;
}
EOF;
}
}
protected function addServiceInstance($id, $definition)
{
$class = $this->dumpValue($definition->getClass());
$arguments = array();
foreach ($definition->getArguments() as $value)
{
$arguments[] = $this->dumpValue($value);
}
if (null !== $definition->getConstructor())
{
return sprintf(" \$instance = call_user_func(array(%s, '%s')%s);\n", $class, $definition->getConstructor(), $arguments ? ', '.implode(', ', $arguments) : '');
}
else
{
if ($class != "'".$definition->getClass()."'")
{
return sprintf(" \$class = %s;\n \$instance = new \$class(%s);\n", $class, implode(', ', $arguments));
}
else
{
return sprintf(" \$instance = new %s(%s);\n", $definition->getClass(), implode(', ', $arguments));
}
}
}
protected function addServiceMethodCalls($id, $definition)
{
$calls = '';
foreach ($definition->getMethodCalls() as $call)
{
$arguments = array();
foreach ($call[1] as $value)
{
$arguments[] = $this->dumpValue($value);
}
$calls .= sprintf(" \$instance->%s(%s);\n", $call[0], implode(', ', $arguments));
}
return $calls;
}
protected function addServiceConfigurator($id, $definition)
{
if (!$callable = $definition->getConfigurator())
{
return '';
}
if (is_array($callable))
{
if (is_object($callable[0]) && $callable[0] instanceof RokCommon_Service_Reference)
{
return sprintf(" %s->%s(\$instance);\n", $this->getServiceCall((string) $callable[0]), $callable[1]);
}
else
{
return sprintf(" call_user_func(array(%s, '%s'), \$instance);\n", $this->dumpValue($callable[0]), $callable[1]);
}
}
else
{
return sprintf(" %s(\$instance);\n", $callable);
}
}
protected function addService($id, $definition)
{
$name = RokCommon_Service_ContainerImpl::camelize($id);
$code = <<<EOF
protected function get{$name}Service()
{
EOF;
$code .=
$this->addServiceInclude($id, $definition).
$this->addServiceShared($id, $definition).
$this->addServiceInstance($id, $definition).
$this->addServiceMethodCalls($id, $definition).
$this->addServiceConfigurator($id, $definition).
$this->addServiceReturn($id, $definition)
;
return $code;
}
protected function addServiceAlias($alias, $id)
{
$name = RokCommon_Service_ContainerImpl::camelize($alias);
return <<<EOF
protected function get{$name}Service()
{
return {$this->getServiceCall($id)};
}
EOF;
}
protected function addServices()
{
$code = '';
foreach ($this->container->getServiceDefinitions() as $id => $definition)
{
$code .= $this->addService($id, $definition);
}
foreach ($this->container->getAliases() as $alias => $id)
{
$code .= $this->addServiceAlias($alias, $id);
}
return $code;
}
protected function startClass($class, $baseClass)
{
return <<<EOF
<?php
class $class extends $baseClass
{
protected \$shared = array();
EOF;
}
protected function addConstructor()
{
if (!$this->container->getParameters())
{
return '';
}
return <<<EOF
public function __construct()
{
parent::__construct(\$this->getDefaultParameters());
}
EOF;
}
protected function addDefaultParametersMethod()
{
if (!$this->container->getParameters())
{
return '';
}
$parameters = $this->exportParameters($this->container->getParameters());
return <<<EOF
protected function getDefaultParameters()
{
return $parameters;
}
EOF;
}
protected function exportParameters($parameters, $indent = 6)
{
$php = array();
foreach ($parameters as $key => $value)
{
if (is_array($value))
{
$value = $this->exportParameters($value, $indent + 2);
}
elseif ($value instanceof RokCommon_Service_Reference)
{
$value = sprintf("new RokCommon_Service_Reference('%s')", $value);
}
elseif ($value instanceof RokCommon_Service_Parameter)
{
$value = sprintf("\$this->getParameter('%s')", $value);
}
else
{
$value = var_export($value, true);
}
$php[] = sprintf('%s%s => %s,', str_repeat(' ', $indent), var_export($key, true), $value);
}
return sprintf("array(\n%s\n%s)", implode("\n", $php), str_repeat(' ', $indent - 2));
}
protected function endClass()
{
return <<<EOF
}
EOF;
}
protected function dumpValue($value)
{
if (is_array($value))
{
$code = array();
foreach ($value as $k => $v)
{
$code[] = sprintf("%s => %s", $this->dumpValue($k), $this->dumpValue($v));
}
return sprintf("array(%s)", implode(', ', $code));
}
elseif (is_object($value) && $value instanceof RokCommon_Service_Reference)
{
return $this->getServiceCall((string) $value);
}
elseif (is_object($value) && $value instanceof RokCommon_Service_Parameter)
{
return sprintf("\$this->getParameter('%s')", strtolower($value));
}
elseif (is_string($value))
{
if (preg_match('/^%([^%]+)%$/', $value, $match))
{
// we do this to deal with non string values (boolean, integer, ...)
// the preg_replace_callback converts them to strings
return sprintf("\$this->getParameter('%s')", strtolower($match[1]));
}
else
{
$code = str_replace('%%', '%', preg_replace_callback('/(?<!%)(%)([^%]+)\1/', array($this, 'replaceParameter'), var_export($value, true)));
// optimize string
$code = preg_replace(array("/^''\./", "/\.''$/", "/\.''\./"), array('', '', '.'), $code);
return $code;
}
}
elseif (is_object($value) || is_resource($value))
{
throw new RuntimeException('Unable to dump a service container if a parameter is an object or a resource.');
}
else
{
return var_export($value, true);
}
}
public function replaceParameter($match)
{
return sprintf("'.\$this->getParameter('%s').'", strtolower($match[2]));
}
protected function getServiceCall($id)
{
if ('service_container' == $id)
{
return '$this';
}
return sprintf('$this->getService(\'%s\')', $id);
}
}
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