Convert XSD into PHP classes and JMS serializer definitions
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README.md

xsd2php

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Convert XSD into PHP classes.

With goetas-webservices/xsd2php you can convert any XSD/WSDL definition into PHP classes.

XSD2PHP can also generate JMS Serializer compatible metadata that can be used to serialize/unserialize the object instances.

Installation

There is one recommended way to install xsd2php via Composer:

  • adding the dependency to your composer.json file:
  "require": {
      ..
      "goetas-webservices/xsd2php-runtime":"^0.2.2",
      ..
  },
  "require-dev": {
      ..
      "goetas-webservices/xsd2php":"^0.3",
      ..
  },

Usage

With this example we will convert OTA XSD definitions into PHP classes.

Suppose that you have all XSD files in /home/my/ota, first of all we need a configuration file (as example config.yml) that will keep all the namespace and directory mappings information.

# config.yml
# Linux Users: PHP Namespaces use back slash \ rather than a forward slash /
# So for destinations_php, the namespace would be TestNs\MyApp

xsd2php:
  namespaces:
    'http://www.example.org/test/': 'TestNs\MyApp'
  destinations_php: 
    'TestNs\MyApp': soap/src
#    'TestNs\MyApp': soap\src  #  on Windows
  destinations_jms:
    'TestNs\MyApp': soap/metadata
#    'TestNs\MyApp': soap\metadata  #  on Windows    
  aliases: # optional
    'http://www.example.org/test/':
      MyCustomXSDType:  'MyCustomMappedPHPType'
  naming_strategy: short # optional and default
  path_generator: psr4 # optional and default

Here is an explanation on the meaning of each parameter:

  • xsd2php.namespaces (required) defines the mapping between XML namespaces and PHP namespaces. (in the example we have the http://www.example.org/test/ XML namespace mapped to TestNs\MyApp)

  • xsd2php.destinations_php (required) specifies the directory where to save the PHP classes that belongs to TestNs\MyApp PHP namespace. (in this example TestNs\MyApp classes will be saved into soap/src directory.

  • xsd2php.destinations_jms (required) specifies the directory where to save JMS Serializer metadata files that belongs to TestNs\MyApp PHP namespace. (in this example TestNs\MyApp metadata will be saved into soap/metadata directory.

  • xsd2php.aliases (optional) specifies some mappings that are handled by custom JMS serializer handlers. Allows to specify to do not generate metadata for some XML types, and assign them directly a PHP class. For that PHP class is necessary to create a custom JMS serialize/deserialize handler.

  • xsd2php.naming_strategy (optional) specifies the naming strategy to use when converting XML names PHP classes.

  • xsd2php.path_generator (optional) specifies the strategy to use for path generation and file saving

Generate PHP classes and JMS metadata info

vendor/bin/xsd2php convert config.yml /home/my/ota/OTA_Air*.xsd

This command will generate PHP classes and JMS metadata files for all the XSD files matching /home/my/ota/OTA_Air*.xsd and using the configuration available in config.yml

Serialize / Unserialize

XSD2PHP can also generate for you JMS Serializer metadata that you can use to serialize/unserialize the generated PHP class instances.

The parameter aliases in the configuration file, will instruct XSD2PHP to not generate any metadata information or PHP class for the {http://www.example.org/test/}MyCustomXSDType type. All reference to this type are replaced with the MyCustomMappedPHPType name.

You have to provide a custom serializer for this type/alis.

Here is an example on how to configure JMS serializer to handle custom types

use JMS\Serializer\SerializerBuilder;
use JMS\Serializer\Handler\HandlerRegistryInterface;

use GoetasWebservices\Xsd\XsdToPhpRuntime\Jms\Handler\BaseTypesHandler;
use GoetasWebservices\Xsd\XsdToPhpRuntime\Jms\Handler\XmlSchemaDateHandler;

$serializerBuilder = SerializerBuilder::create();
$serializerBuilder->addMetadataDir('metadata dir', 'TestNs');
$serializerBuilder->configureHandlers(function (HandlerRegistryInterface $handler) use ($serializerBuilder) {
    $serializerBuilder->addDefaultHandlers();
    $handler->registerSubscribingHandler(new BaseTypesHandler()); // XMLSchema List handling
    $handler->registerSubscribingHandler(new XmlSchemaDateHandler()); // XMLSchema date handling

    // $handler->registerSubscribingHandler(new YourhandlerHere());
});

$serializer = $serializerBuilder->build();

// deserialize the XML into Demo\MyObject object
$object = $serializer->deserialize('<some xml/>', 'TestNs\MyObject', 'xml');

// some code ....

// serialize the Demo\MyObject back into XML
$newXml = $serializer->serialize($object, 'xml');

Dealing with xsd:anyType or xsd:anySimpleType

If your XSD contains xsd:anyType or xsd:anySimpleType types you have to specify a handler for this.

When you generate the JMS metadata you have to specify a custom handler:

# config.yml

xsd2php:
  ...
  aliases: 
    'http://www.w3.org/2001/XMLSchema':
      anyType: 'MyCustomAnyTypeHandler'
      anySimpleType: 'MyCustomAnySimpleTypeHandler'

Now you have to create a custom serialization handler:

use JMS\Serializer\XmlSerializationVisitor;
use JMS\Serializer\XmlDeserializationVisitor;

use JMS\Serializer\Handler\SubscribingHandlerInterface;
use JMS\Serializer\GraphNavigator;
use JMS\Serializer\VisitorInterface;
use JMS\Serializer\Context;

class MyHandler implements SubscribingHandlerInterface
{
    public static function getSubscribingMethods()
    {
        return array(
            array(
                'direction' => GraphNavigator::DIRECTION_DESERIALIZATION,
                'format' => 'xml',
                'type' => 'MyCustomAnyTypeHandler',
                'method' => 'deserializeAnyType'
            ),
            array(
                'direction' => GraphNavigator::DIRECTION_SERIALIZATION,
                'format' => 'xml',
                'type' => 'MyCustomAnyTypeHandler',
                'method' => 'serializeAnyType'
            )
        );
    }

    public function serializeAnyType(XmlSerializationVisitor $visitor, $data, array $type, Context $context)
    {
        // serialize your object here
    }

    public function deserializeAnyType(XmlDeserializationVisitor $visitor, $data, array $type)
    {
        // deserialize your object here
    }
}

Naming Strategy

There are two types of naming strategies: short and long. The default is short, this naming strategy can however generate naming conflicts.

The long naming strategy will suffix elements with Element and types with Type.

  • MyNamesapce\User will become MyNamesapce\UserElement
  • MyNamesapce\UserType will become MyNamesapce\UserTypeType

An XSD for instance with a type named User, a type named UserType, a root element named User and UserElement, will only work when using the long naming strategy.

  • If you don't have naming conflicts and you want to have short and descriptive class names, use the short option.
  • If you have naming conflicts use the long option.
  • If you want to be safe, use the long option.

Note

The code in this project is provided under the MIT license. For professional support contact goetas@gmail.com or visit https://www.goetas.com