<?php
namespace Aws\Api\Serializer;
use Aws\Api\StructureShape;
use Aws\Api\ListShape;
use Aws\Api\MapShape;
use Aws\Api\Shape;
use Aws\Api\TimestampShape;
/**
* @internal
*/
class QueryParamBuilder
{
private $methods;
protected function queryName(Shape $shape, $default = null)
{
if (null !== $shape['queryName']) {
return $shape['queryName'];
}
if (null !== $shape['locationName']) {
return $shape['locationName'];
}
if ($this->isFlat($shape) && !empty($shape['member']['locationName'])) {
return $shape['member']['locationName'];
}
return $default;
}
protected function isFlat(Shape $shape)
{
return $shape['flattened'] === true;
}
public function __invoke(StructureShape $shape, array $params)
{
if (!$this->methods) {
$this->methods = array_fill_keys(get_class_methods($this), true);
}
$query = [];
$this->format_structure($shape, $params, '', $query);
return $query;
}
protected function format(Shape $shape, $value, $prefix, array &$query)
{
$type = 'format_' . $shape['type'];
if (isset($this->methods[$type])) {
$this->{$type}($shape, $value, $prefix, $query);
} else {
$query[$prefix] = (string) $value;
}
}
protected function format_structure(
StructureShape $shape,
array $value,
$prefix,
&$query
) {
if ($prefix) {
$prefix .= '.';
}
foreach ($value as $k => $v) {
if ($shape->hasMember($k)) {
$member = $shape->getMember($k);
$this->format(
$member,
$v,
$prefix . $this->queryName($member, $k),
$query
);
}
}
}
protected function format_list(
ListShape $shape,
array $value,
$prefix,
&$query
) {
// Handle empty list serialization
if (!$value) {
$query[$prefix] = '';
return;
}
$items = $shape->getMember();
if (!$this->isFlat($shape)) {
$locationName = $shape->getMember()['locationName'] ?: 'member';
$prefix .= ".$locationName";
} elseif ($name = $this->queryName($items)) {
$parts = explode('.', $prefix);
$parts[count($parts) - 1] = $name;
$prefix = implode('.', $parts);
}
foreach ($value as $k => $v) {
$this->format($items, $v, $prefix . '.' . ($k + 1), $query);
}
}
protected function format_map(
MapShape $shape,
array $value,
$prefix,
array &$query
) {
$vals = $shape->getValue();
$keys = $shape->getKey();
if (!$this->isFlat($shape)) {
$prefix .= '.entry';
}
$i = 0;
$keyName = '%s.%d.' . $this->queryName($keys, 'key');
$valueName = '%s.%s.' . $this->queryName($vals, 'value');
foreach ($value as $k => $v) {
$i++;
$this->format($keys, $k, sprintf($keyName, $prefix, $i), $query);
$this->format($vals, $v, sprintf($valueName, $prefix, $i), $query);
}
}
protected function format_blob(Shape $shape, $value, $prefix, array &$query)
{
$query[$prefix] = base64_encode($value);
}
protected function format_timestamp(
TimestampShape $shape,
$value,
$prefix,
array &$query
) {
$query[$prefix] = TimestampShape::format($value, 'iso8601');
}
protected function format_boolean(Shape $shape, $value, $prefix, array &$query)
{
$query[$prefix] = ($value) ? 'true' : 'false';
}
}
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