142 lines
4.2 KiB
PHP
142 lines
4.2 KiB
PHP
<?php
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namespace Icinga\Module\Director\Import;
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use Icinga\Module\Director\Objects\ImportSource;
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use Icinga\Module\Director\Web\Hook\ImportSourceHook;
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class Import
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{
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protected $db;
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protected function __construct()
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{
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}
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public static function run(ImportSource $source)
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{
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$import = new self();
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return $import->importFromSource($source);
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}
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protected function importFromSource(ImportSource $source)
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{
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$connection = $source->getConnection();
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$this->db = $db = $connection->getDbAdapter();
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$keyColumn = $source->key_column;
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$rows = array();
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$props = array();
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$rowsProps = array();
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foreach (ImportSourceHook::loadByName($source->source_name, $connection)->fetchData() as $row) {
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// TODO: Check for name collision
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if (! isset($row->$keyColumn)) {
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die('Depp');
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}
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$object_name = $row->$keyColumn;
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$rowChecksums = array();
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$keys = array_keys((array) $row);
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sort($keys);
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foreach ($keys as $key) {
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// TODO: Specify how to treat NULL values. Ignoring for now.
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if ($row->$key === null) {
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continue;
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}
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$checksum = sha1($key . '=' . json_encode((string) $row->$key), true);
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if (! array_key_exists($checksum, $props)) {
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$props[$checksum] = array(
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'checksum' => $checksum,
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'property_name' => $key,
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'property_value' => $row->$key,
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'format' => 'string'
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);
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}
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$rowChecksums[] = $checksum;
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}
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$checksum = sha1($object_name . ';' . implode(';', $rowChecksums), true);
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if (array_key_exists($checksum, $rows)) {
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die('WTF, collision?');
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}
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$rows[$checksum] = array(
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'checksum' => $checksum,
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'object_name' => $object_name
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);
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$rowsProps[$checksum] = $rowChecksums;
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}
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$rowSums = array_keys($rows);
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$rowset = sha1(implode(';', $rowSums), true);
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$db->beginTransaction();
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if (! $this->rowSetExists($rowset)) {
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$newRows = $this->newChecksums('imported_row', $rowSums);
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$newProperties = $this->newChecksums('imported_property', array_keys($props));
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$db->insert('imported_rowset', array('checksum' => $rowset));
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foreach ($newProperties as $checksum) {
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$db->insert('imported_property', $props[$checksum]);
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}
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foreach ($newRows as $checksum) {
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$db->insert('imported_row', $rows[$checksum]);
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foreach ($rowsProps[$checksum] as $propChecksum) {
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$db->insert('imported_row_property', array(
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'row_checksum' => $checksum,
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'property_checksum' => $propChecksum
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));
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}
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}
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foreach (array_keys($rows) as $checksum) {
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$db->insert(
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'imported_rowset_row',
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array(
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'rowset_checksum' => $rowset,
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'row_checksum' => $checksum
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)
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);
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}
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}
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$db->insert(
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'import_run',
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array(
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'source_id' => $source->id,
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'rowset_checksum' => $rowset,
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'start_time' => date('Y-m-d H:i:s'),
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'succeeded' => 'y'
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)
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);
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$id = $db->lastInsertId();
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$db->commit();
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return $id;
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}
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protected function rowSetExists($checksum)
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{
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return count($this->newChecksums('imported_rowset', array($checksum))) === 0;
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}
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protected function newChecksums($table, $checksums)
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{
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$db = $this->db;
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$existing = $db->fetchCol(
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$db->select()->from($table, 'checksum')->where('checksum IN (?)', $checksums)
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);
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return array_diff($checksums, $existing);
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}
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}
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