/usr/share/php/Icinga/Data/DataArray/ArrayDatasource.php is in php-icinga 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Data\DataArray;
use ArrayIterator;
use Icinga\Data\Selectable;
use Icinga\Data\SimpleQuery;
class ArrayDatasource implements Selectable
{
/**
* The array being used as data source
*
* @var array
*/
protected $data;
/**
* The current result
*
* @var array
*/
protected $result;
/**
* The result of a counted query
*
* @var int
*/
protected $count;
/**
* The name of the column to map array keys on
*
* In case the array being used as data source provides keys of type string,this name
* will be used to set such as column on each row, if the column is not set already.
*
* @var string
*/
protected $keyColumn;
/**
* Create a new data source for the given array
*
* @param array $data The array you're going to use as a data source
*/
public function __construct(array $data)
{
$this->data = $data;
}
/**
* Set the name of the column to map array keys on
*
* @param string $name
*
* @return $this
*/
public function setKeyColumn($name)
{
$this->keyColumn = $name;
return $this;
}
/**
* Return the name of the column to map array keys on
*
* @return string
*/
public function getKeyColumn()
{
return $this->keyColumn;
}
/**
* Provide a query for this data source
*
* @return SimpleQuery
*/
public function select()
{
return new SimpleQuery(clone $this);
}
/**
* Fetch and return all rows of the given query's result set using an iterator
*
* @param SimpleQuery $query
*
* @return ArrayIterator
*/
public function query(SimpleQuery $query)
{
return new ArrayIterator($this->fetchAll($query));
}
/**
* Fetch and return a column of all rows of the result set as an array
*
* @param SimpleQuery $query
*
* @return array
*/
public function fetchColumn(SimpleQuery $query)
{
$result = array();
foreach ($this->getResult($query) as $row) {
$arr = (array) $row;
$result[] = array_shift($arr);
}
return $result;
}
/**
* Fetch and return all rows of the given query's result as a flattened key/value based array
*
* @param SimpleQuery $query
*
* @return array
*/
public function fetchPairs(SimpleQuery $query)
{
$result = array();
$keys = null;
foreach ($this->getResult($query) as $row) {
if ($keys === null) {
$keys = array_keys((array) $row);
if (count($keys) < 2) {
$keys[1] = $keys[0];
}
}
$result[$row->{$keys[0]}] = $row->{$keys[1]};
}
return $result;
}
/**
* Fetch and return the first row of the given query's result
*
* @param SimpleQuery $query
*
* @return object|false The row or false in case the result is empty
*/
public function fetchRow(SimpleQuery $query)
{
$result = $this->getResult($query);
if (empty($result)) {
return false;
}
return array_shift($result);
}
/**
* Fetch and return all rows of the given query's result as an array
*
* @param SimpleQuery $query
*
* @return array
*/
public function fetchAll(SimpleQuery $query)
{
return $this->getResult($query);
}
/**
* Count all rows of the given query's result
*
* @param SimpleQuery $query
*
* @return int
*/
public function count(SimpleQuery $query)
{
if ($this->count === null) {
$this->count = count($this->createResult($query));
}
return $this->count;
}
/**
* Create and return the result for the given query
*
* @param SimpleQuery $query
*
* @return array
*/
protected function createResult(SimpleQuery $query)
{
$columns = $query->getColumns();
$filter = $query->getFilter();
$offset = $query->hasOffset() ? $query->getOffset() : 0;
$limit = $query->hasLimit() ? $query->getLimit() : 0;
$foundStringKey = false;
$result = array();
$skipped = 0;
foreach ($this->data as $key => $row) {
if (is_string($key) && $this->keyColumn !== null && !isset($row->{$this->keyColumn})) {
$row = clone $row; // Make sure that this won't affect the actual data
$row->{$this->keyColumn} = $key;
}
if (! $filter->matches($row)) {
continue;
} elseif ($skipped < $offset) {
$skipped++;
continue;
}
// Get only desired columns if asked so
if (! empty($columns)) {
$filteredRow = (object) array();
foreach ($columns as $alias => $name) {
if (! is_string($alias)) {
$alias = $name;
}
if (isset($row->$name)) {
$filteredRow->$alias = $row->$name;
} else {
$filteredRow->$alias = null;
}
}
} else {
$filteredRow = $row;
}
$foundStringKey |= is_string($key);
$result[$key] = $filteredRow;
if (count($result) === $limit) {
break;
}
}
// Sort the result
if ($query->hasOrder()) {
if ($foundStringKey) {
uasort($result, array($query, 'compare'));
} else {
usort($result, array($query, 'compare'));
}
} elseif (! $foundStringKey) {
$result = array_values($result);
}
return $result;
}
/**
* Return whether a query result exists
*
* @return bool
*/
protected function hasResult()
{
return $this->result !== null;
}
/**
* Set the current result
*
* @param array $result
*
* @return $this
*/
protected function setResult(array $result)
{
$this->result = $result;
return $this;
}
/**
* Return the result for the given query
*
* @param SimpleQuery $query
*
* @return array
*/
protected function getResult(SimpleQuery $query)
{
if (! $this->hasResult()) {
$this->setResult($this->createResult($query));
}
return $this->result;
}
}
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