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<?php
/*
* Copyright 2015-2017 MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
namespace MongoDB;
use MongoDB\BSON\Serializable;
use MongoDB\Driver\ReadConcern;
use MongoDB\Driver\Server;
use MongoDB\Driver\WriteConcern;
use MongoDB\Exception\InvalidArgumentException;
use stdClass;
/**
* Applies a type map to a document.
*
* This function is used by operations where it is not possible to apply a type
* map to the cursor directly because the root document is a command response
* (e.g. findAndModify).
*
* @internal
* @param array|object $document Document to which the type map will be applied
* @param array $typeMap Type map for BSON deserialization.
* @return array|object
* @throws InvalidArgumentException
*/
function apply_type_map_to_document($document, array $typeMap)
{
if ( ! is_array($document) && ! is_object($document)) {
throw InvalidArgumentException::invalidType('$document', $document, 'array or object');
}
return \MongoDB\BSON\toPHP(\MongoDB\BSON\fromPHP($document), $typeMap);
}
/**
* Generate an index name from a key specification.
*
* @internal
* @param array|object $document Document containing fields mapped to values,
* which denote order or an index type
* @return string
* @throws InvalidArgumentException
*/
function generate_index_name($document)
{
if ($document instanceof Serializable) {
$document = $document->bsonSerialize();
}
if (is_object($document)) {
$document = get_object_vars($document);
}
if ( ! is_array($document)) {
throw InvalidArgumentException::invalidType('$document', $document, 'array or object');
}
$name = '';
foreach ($document as $field => $type) {
$name .= ($name != '' ? '_' : '') . $field . '_' . $type;
}
return $name;
}
/**
* Return whether the first key in the document starts with a "$" character.
*
* This is used for differentiating update and replacement documents.
*
* @internal
* @param array|object $document Update or replacement document
* @return boolean
* @throws InvalidArgumentException
*/
function is_first_key_operator($document)
{
if ($document instanceof Serializable) {
$document = $document->bsonSerialize();
}
if (is_object($document)) {
$document = get_object_vars($document);
}
if ( ! is_array($document)) {
throw InvalidArgumentException::invalidType('$document', $document, 'array or object');
}
reset($document);
$firstKey = (string) key($document);
return (isset($firstKey[0]) && $firstKey[0] === '$');
}
/**
* Return whether the aggregation pipeline ends with an $out operator.
*
* This is used for determining whether the aggregation pipeline must be
* executed against a primary server.
*
* @internal
* @param array $pipeline List of pipeline operations
* @return boolean
*/
function is_last_pipeline_operator_out(array $pipeline)
{
$lastOp = end($pipeline);
if ($lastOp === false) {
return false;
}
$lastOp = (array) $lastOp;
return key($lastOp) === '$out';
}
/**
* Return whether the "out" option for a mapReduce operation is "inline".
*
* This is used to determine if a mapReduce command requires a primary.
*
* @internal
* @see https://docs.mongodb.com/manual/reference/command/mapReduce/#output-inline
* @param string|array|object $out Output specification
* @return boolean
* @throws InvalidArgumentException
*/
function is_mapreduce_output_inline($out)
{
if ( ! is_array($out) && ! is_object($out)) {
return false;
}
if ($out instanceof Serializable) {
$out = $out->bsonSerialize();
}
if (is_object($out)) {
$out = get_object_vars($out);
}
if ( ! is_array($out)) {
throw InvalidArgumentException::invalidType('$out', $out, 'array or object');
}
reset($out);
return key($out) === 'inline';
}
/**
* Return whether the server supports a particular feature.
*
* @internal
* @param Server $server Server to check
* @param integer $feature Feature constant (i.e. wire protocol version)
* @return boolean
*/
function server_supports_feature(Server $server, $feature)
{
$info = $server->getInfo();
$maxWireVersion = isset($info['maxWireVersion']) ? (integer) $info['maxWireVersion'] : 0;
$minWireVersion = isset($info['minWireVersion']) ? (integer) $info['minWireVersion'] : 0;
return ($minWireVersion <= $feature && $maxWireVersion >= $feature);
}
function is_string_array($input) {
if (!is_array($input)){
return false;
}
foreach($input as $item) {
if (!is_string($item)) {
return false;
}
}
return true;
}
/**
* Performs a deep copy of a value.
*
* This function will clone objects and recursively copy values within arrays.
*
* @internal
* @see https://bugs.php.net/bug.php?id=49664
* @param mixed $element Value to be copied
* @return mixed
*/
function recursive_copy($element) {
if (is_array($element)) {
foreach ($element as $key => $value) {
$element[$key] = recursive_copy($value);
}
return $element;
}
if ( ! is_object($element)) {
return $element;
}
return clone $element;
}