private function parseMapping(SimpleXMLElement $xml, PiBX_AST_Tree $part)
{
$nodes = $xml->xpath('./*');
foreach ($nodes as &$child) {
$name = (string) $child->getName();
$attributes = $child->attributes();
if ($name == 'collection') {
$name = (string) $attributes['name'];
$setter = (string) $attributes['set-method'];
$getter = (string) $attributes['get-method'];
$newPart = new PiBX_AST_Collection($name);
$newPart->setSetMethod($setter);
$newPart->setGetMethod($getter);
$class = (string) $attributes['class'];
$this->classMap[$name] = $class;
$this->elementAsts[$name] = $newPart;
$this->parseMapping($child, $newPart);
} elseif ($name == 'structure') {
$name = (string) $attributes['name'];
if ($part instanceof PiBX_AST_Collection) {
// a structure in a collection is a reference to the actual structure
$referencedType = (string) $attributes['map-as'];
$type = $this->getClassnameForName($referencedType);
$newPart = new PiBX_AST_Structure($name);
$newPart->setType($type);
$this->structuralReferences[$referencedType] = $name;
} elseif ($part instanceof PiBX_AST_Type) {
$referencedType = (string) $attributes['map-as'];
$type = $this->getClassnameForName($referencedType);
// a structure in a type is the structure "container"
$newPart = new PiBX_AST_Structure($name, $type);
$getMethod = (string) $attributes['get-method'];
$setMethod = (string) $attributes['set-method'];
$newPart->setGetMethod($getMethod);
$newPart->setSetMethod($setMethod);
} elseif ($part instanceof PiBX_AST_Structure) {
$ordered = (string) $attributes['ordered'];
$ordered = strtolower($ordered);
$choice = (string) $attributes['choice'];
$choice = strtolower($choice);
if ($ordered == 'true' && $choice == 'false') {
$part->setStructureType(PiBX_AST_StructureType::ORDERED());
} elseif ($ordered == 'false' && $choice == 'true') {
$part->setStructureType(PiBX_AST_StructureType::CHOICE());
} else {
throw new RuntimeException('Invalid structure state!');
}
$structureValues = $child->xpath('./*');
// this handling is a bit clunky but needed,
// since the choice structures are defined
// somewhat redundant in the binding.xml
foreach ($structureValues as &$struct) {
$valueName = (string) $struct->getName();
if ($valueName != 'value') {
throw new RuntimeException('No value-element within the structure.');
}
$attributes = $struct->attributes();
$nameAttribute = (string) $attributes['name'];
$newPart = new PiBX_AST_StructureElement($nameAttribute);
$style = (string) $attributes['style'];
$testMethod = (string) $attributes['test-method'];
$getMethod = (string) $attributes['get-method'];
$setMethod = (string) $attributes['set-method'];
$newPart->setStyle($style);
$newPart->setTestMethod($testMethod);
$newPart->setGetMethod($getMethod);
$newPart->setSetMethod($setMethod);
$part->add($newPart);
$this->elementAsts[$nameAttribute] = $newPart;
}
// no further processing needed
// all structure values have been added
break;
}
$this->elementAsts[$name] = $newPart;
$this->parseMapping($child, $newPart);
} elseif ($name == 'value') {
$name = (string) $attributes['name'];
if ($part instanceof PiBX_AST_Collection) {
$newPart = new PiBX_AST_CollectionItem($name);
} elseif ($part instanceof PiBX_AST_Type) {
$newPart = new PiBX_AST_TypeAttribute($name);
$style = (string) $attributes['style'];
$setMethod = (string) $attributes['set-method'];
$getMethod = (string) $attributes['get-method'];
$newPart->setStyle($style);
$newPart->setSetMethod($setMethod);
$newPart->setGetMethod($getMethod);
}
$this->elementAsts[$name] = $newPart;
} else {
throw new InvalidArgumentException('Unexpected binding element "' . $name . '"');
}
$part->add($newPart);
}
}
public function testBooksBinding()
{
$filepath = dirname(__FILE__) . '/../_files/Books';
$bindingFile = $filepath . '/binding.xml';
$expectedXml = file_get_contents($bindingFile);
$binding = new PiBX_Runtime_Binding($bindingFile);
$asts = $binding->parse();
$this->assertEquals(2, count($asts));
// first tree/type
$expectedAst1 = new PiBX_AST_Type('Collection');
$expectedAst1->setType('Collection');
$expectedAst1->setAsRoot();
$collection = new PiBX_AST_Collection('books');
$collection->setGetMethod('getBooks');
$collection->setSetMethod('setBooks');
$structure = new PiBX_AST_Structure('book');
$structure->setType('BookType');
$expectedAst1->add($collection->add($structure));
$this->assertEquals($expectedAst1, $asts[0]);
// second tree/type
$expectedAst2 = new PiBX_AST_Type('bookType');
$expectedAst2->setType('BookType');
$value1 = new PiBX_AST_TypeAttribute('name');
$value1->setStyle('element');
$value1->setGetMethod('getName');
$value1->setSetMethod('setName');
$expectedAst2->add($value1);
$value2 = new PiBX_AST_TypeAttribute('ISBN');
$value2->setStyle('element');
$value2->setGetMethod('getISBN');
$value2->setSetMethod('setISBN');
$expectedAst2->add($value2);
$value3 = new PiBX_AST_TypeAttribute('price');
$value3->setStyle('element');
$value3->setGetMethod('getPrice');
$value3->setSetMethod('setPrice');
$expectedAst2->add($value3);
$value4 = new PiBX_AST_Collection('authors');
$value4->setGetMethod('getAuthorNames');
$value4->setSetMethod('setAuthorNames');
$value4item = new PiBX_AST_CollectionItem('authorName');
$value4->add($value4item);
$expectedAst2->add($value4);
$value5 = new PiBX_AST_TypeAttribute('description');
$value5->setStyle('element');
$value5->setGetMethod('getDescription');
$value5->setSetMethod('setDescription');
$expectedAst2->add($value5);
$value6 = new PiBX_AST_Structure('promotion');
$value6->setStructureType(PiBX_AST_StructureType::CHOICE());
$value6Item1 = new PiBX_AST_StructureElement('Discount');
$value6Item1->setTestMethod('ifPromotionDiscount');
$value6Item1->setGetMethod('getPromotionDiscount');
$value6Item1->setSetMethod('setPromotionDiscount');
$value6Item1->setStyle('element');
$value6Item2 = new PiBX_AST_StructureElement('None');
$value6Item2->setTestMethod('ifPromotionNone');
$value6Item2->setGetMethod('getPromotionNone');
$value6Item2->setSetMethod('setPromotionNone');
$value6Item2->setStyle('element');
$value6->add($value6Item1);
$value6->add($value6Item2);
$expectedAst2->add($value6);
$value7 = new PiBX_AST_TypeAttribute('publicationDate');
$value7->setStyle('element');
$value7->setGetMethod('getPublicationDate');
$value7->setSetMethod('setPublicationDate');
$expectedAst2->add($value7);
$value8 = new PiBX_AST_TypeAttribute('bookCategory');
$value8->setStyle('element');
$value8->setGetMethod('getBookCategory');
$value8->setSetMethod('setBookCategory');
$expectedAst2->add($value8);
$value9 = new PiBX_AST_TypeAttribute('itemId');
$value9->setStyle('attribute');
$value9->setGetMethod('getItemId');
$value9->setSetMethod('setItemId');
$expectedAst2->add($value9);
$this->assertEquals($expectedAst2, $asts[1]);
}