/**
* Sets the prefixes for the given IRIs.
*
* @param string[] $prefixes
* @throws InvalidArgumentException
*/
private function setPrefixes(array $prefixes)
{
foreach ($prefixes as $prefix => $iri) {
$this->expressionValidator->validate($prefix, ExpressionValidator::VALIDATE_PREFIX);
$this->expressionValidator->validate($iri, ExpressionValidator::VALIDATE_IRI);
$this->prefixes[$prefix] = $iri;
}
$this->usageValidator->trackDefinedPrefixes(array_keys($this->prefixes));
}
/**
* Specifies the expressions to select.
*
* @param string|string[] $expressions
* @return self
* @throws InvalidArgumentException
*/
public function select($expressions)
{
$expressions = is_array($expressions) ? $expressions : func_get_args();
foreach ($expressions as $expression) {
$this->expressionValidator->validate($expression, ExpressionValidator::VALIDATE_VARIABLE | ExpressionValidator::VALIDATE_FUNCTION_AS);
// @todo temp hack to add AS definitions to defined variables
$regexHelper = new RegexHelper();
$matches = $regexHelper->getMatches('AS \\{variable}', $expression);
$this->usageValidator->trackDefinedVariables($matches);
// @todo detect functions and wrap with brackets automatically
$this->usageValidator->trackUsedVariables($expression);
$this->selects[] = $expression;
}
return $this;
}
/**
* Adds the given expression as a filter to this query.
*
* @param string $expression
* @return self
* @throws InvalidArgumentException
*/
public function filter($expression)
{
$this->expressionValidator->validate($expression, ExpressionValidator::VALIDATE_FUNCTION);
$this->usageValidator->trackUsedPrefixes($expression);
$this->usageValidator->trackUsedVariables($expression);
$this->filters[] = '(' . $expression . ')';
return $this;
}
private function addExpressions(array $expressions, $options = null)
{
foreach ($expressions as $expression) {
$this->expressionValidator->validate($expression, $options ?: ExpressionValidator::VALIDATE_VARIABLE | ExpressionValidator::VALIDATE_FUNCTION_AS);
// @todo temp hack to add AS definitions to defined variables
$regexHelper = new RegexHelper();
$matches = $regexHelper->getMatches('AS \\{variable}', $expression);
$this->usageValidator->trackDefinedVariables($matches);
// @todo detect functions and wrap with brackets automatically
$this->usageValidator->trackUsedVariables($expression);
$this->usageValidator->trackUsedPrefixes($expression);
$this->selects[] = $expression;
}
}
public function testValidate_invalidArgument()
{
$expressionValidator = new ExpressionValidator();
$this->setExpectedException('InvalidArgumentException');
$expressionValidator->validate(null, ExpressionValidator::VALIDATE_ALL);
}
