1 files changed, 53 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/query/change/RegexRefPredicate.java b/java/com/google/gerrit/server/query/change/RegexRefPredicate.java
new file mode 100644
index 0000000000..92abafb6ab
--- /dev/null
+++ b/java/com/google/gerrit/server/query/change/RegexRefPredicate.java
@@ -0,0 +1,53 @@
+// Copyright (C) 2010 The Android Open Source Project
+//
+// 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.
+
+package com.google.gerrit.server.query.change;
+
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.server.index.change.ChangeField;
+import com.google.gwtorm.server.OrmException;
+import dk.brics.automaton.RegExp;
+import dk.brics.automaton.RunAutomaton;
+
+public class RegexRefPredicate extends ChangeRegexPredicate {
+  protected final RunAutomaton pattern;
+
+  public RegexRefPredicate(String re) {
+    super(ChangeField.REF, re);
+
+    if (re.startsWith("^")) {
+      re = re.substring(1);
+    }
+
+    if (re.endsWith("$") && !re.endsWith("\\$")) {
+      re = re.substring(0, re.length() - 1);
+    }
+
+    this.pattern = new RunAutomaton(new RegExp(re).toAutomaton());
+  }
+
+  @Override
+  public boolean match(ChangeData object) throws OrmException {
+    Change change = object.change();
+    if (change == null) {
+      return false;
+    }
+    return pattern.run(change.getDest().get());
+  }
+
+  @Override
+  public int getCost() {
+    return 1;
+  }
+}