1 files changed, 38 insertions, 0 deletions
diff --git a/lib/private/Files/Search/QueryOptimizer/QueryOptimizer.php b/lib/private/Files/Search/QueryOptimizer/QueryOptimizer.php
new file mode 100644
index 00000000000..5259ca25ad3
--- /dev/null
+++ b/lib/private/Files/Search/QueryOptimizer/QueryOptimizer.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\Files\Search\QueryOptimizer;
+
+use OCP\Files\Search\ISearchOperator;
+
+class QueryOptimizer {
+	/** @var QueryOptimizerStep[] */
+	private $steps = [];
+
+	public function __construct() {
+		// note that the order here is relevant
+		$this->steps = [
+			new PathPrefixOptimizer(),
+			new MergeDistributiveOperations(),
+			new FlattenSingleArgumentBinaryOperation(),
+			new FlattenNestedBool(),
+			new OrEqualsToIn(),
+			new FlattenNestedBool(),
+			new SplitLargeIn(),
+		];
+	}
+
+	public function processOperator(ISearchOperator &$operator) {
+		foreach ($this->steps as $step) {
+			$step->inspectOperator($operator);
+		}
+		foreach ($this->steps as $step) {
+			$step->processOperator($operator);
+		}
+	}
+}